VWDiesel.net The IDI, TDI, and mTDI source.
General Information => General => Topic started by: burn_your_money on July 03, 2010, 08:14:07 pm
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So it all started 2 summers ago when I decided to cut the lines going to my power steering pump on my Golf. The tabs on the front of the block had broken off for the power steering pump mount so it was kind of swaying in the breeze. It was impossible to keep the belt tensioned and as a result I was afraid that my waterpump would not be spinning enough. What I should have done was hook the 2 lines together but I didn't.
Fast forward to last fall, the steering now gets "locked" in position when I go near full lock. I have to yank very hard on the wheel to get it to straighten out.
I picked up a manual rack from a friend and decided that I should get a beater car on the road while I swap the rack out. From what I have read these things either go smoothly or everything breaks and you are without a car for weeks. Well I get the beater on the road (my 89TD pos) and one thing leads to another and I still hadn't touched my Golf. Since I had swapped in the non turbo AAZ I've been playing around with different 1.6 NA intake manifolds trying to find one that gave good power and fuel economy. Then I stumbled across this little gem in Germany.
(http://img.photobucket.com/albums/v603/burnyourmoney/1YIntakeManifold-1.jpg)
I was buying a GTD intercooler setup off the same guy so I had him throw it in the same box to save on shipping costs. Unlike all the other NA intakes in North America this one requires a separate air box and unfortunately it has an EGR so it's full of crap. This is what the plenum looks like, gross eh?
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08383.jpg)
So this weekend was the weekend. I pulled the Golf into the shop on Friday morning (we were closed because of Canada Day) and started pulling stuff out. I've replaced one steering rack before and I did it by dropping the subframe. Since there were so many other things I wanted to do to my Golf I figured I would yank the engine out and do it that way. 3 hours later and the engine was out and the new rack was in. My only oversight was the fact that the boot that goes from the rack to the firewall is totally different between power steering and manual steering. I have a garbage bag ziptied in place for the time being. The stupid boot is NLA as far as I can find :(
I took the time to pressure wash my engine bay while I had everything out. It was pretty messy from my "performance exhaust"
(http://img.photobucket.com/albums/v603/burnyourmoney/IMGP3676-1.jpg)
It's about this time that I recalled that my engine used to have an EGR when it had a turbo on it. All my intake runners looked like this.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08379.jpg)
Dr Diesel has been harassing me to make my NA "fast" ever since he and I did all that work measuring camshafts and whatnot. I've always regretted the carbon buildup in my head so I figured the engine's out, I have a performance cam to install, it would be wasted if I don't clean this crap out.
I figured the best course of action would be to pull the head and give it a good, proper cleaning.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08364.jpg)
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08366.jpg)
You can probably see all that rust below the front coolant flange. I've overheated this poor engine more times then I care to recall so I was pretty worried about the head being warped. It's at the maximum allowable warpage so hopefully the headgasket seals. I'm undecided if I should use a fiber gasket instead of the metal one.
I've also decided to replace that lovely green valve cover. I could never get it to stop leaking so I'm going to go with a G60 valve cover instead. Hopefully that will solve my oil problems.
So while I was cleaning the head I figured hey I'm this far along, I may as well port this thing a bit. A quick phone call to Dr Diesel for some know-how and out comes the Dremel.
I started with the exhaust ports. I've always read that they should be smaller then the exhaust manifold to create a step. I don't know if this is just a gasser thing or not but figured I would follow suit. I placed the exhaust gasket over the port and traced an outline of gasket opening leaving about 1mm all the way around it. Here you can see my scribe line
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08396.jpg)
This one just shows how much extra material there is.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08395.jpg)
And this shows stage 1, porting it to match my scribe line
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08394.jpg)
Then I smoothed out what I had just removed to the stock runner diameter over about an inch into the runner. No pictures of this for some reason.
Then I turned my attention to the intake ports. They were very good but there was a bit of room for improvement. Since I didn't have a bunch of soot to scribe a line into I used a permanent marker and colored the area around the port. Then I copied the intake gasket pattern onto the head using my scriber. This is the result
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08397.jpg)
You can see in that picture that there is very little material to remove. Again, I blended what I did into the runner over the course of an inch.
Here is a picture of the final product after I sanded everything with a flap wheel.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08398.jpg)
Now it was time to turn my focus to the valve area. Once again the intake was pretty good from the factory but the exhaust was crap. There is a huge hump all the way around the runner about 3/4 of an inch into the runner. Dr Diesel said it has to go so I did what I could.
Anything that is shiny has been ported. All the runners were either black with soot or EGR crap when I started. Hopefully you can see what I did in these pictures.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08411.jpg)
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08412.jpg)
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08408.jpg)
My head now flows this much better (that's a 13mm cam cap nut)
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08417.jpg)
I sure hope what Dr Diesel was telling me over the phone translated properly into my head
Here is how I removed my valves
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08372.jpg)
And this is how I checked my valve guide wear
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08375.jpg)
Now to put it all back together and show some turbo people what's what :P
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I dunno, do you still drive a sluggish 1.9 N/A? ;) jks that is a lot of work you did there! I wish i too had a shop to work in.. Only got the damn driveway and the sunburn that subsequently follows.. lol
Wanna port my 1.6 head? :D
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I could have done all that easily ....
in about 2-3 weeks part time. lol
Great work Burn, you're rolling on it.
Rock Onward and Upward man !
New intake looks mighty Wicked.
Bonus points on the cool factor even if nothing else.
3 questions:
1.What did you use to get the deck/chambers on the head so clean ?
2.Is the exhaust going to grow another leg - or is it staying short ?
3.Is my TD airbox going on this project ?
Please say NO !
Helluva throwdown for a weekends work, should be good deal more of Go in the pedal when its back in 1 piece. ^5
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Wow Tyler that's great you got started on your Golf. Glad you also found the 1Y intake. I finally got mine from Poland[ 8 weeks in transit] and will be hooking it up once i get the Donaldson air filter mounted. Mine didn't have the EGR inlet however and so will need minimal if any cleaning. I never pulled a motor to change a rack though !
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Wanna port my 1.6 head? :D
No :P
1.What did you use to get the deck/chambers on the head so clean ?
2.Is the exhaust going to grow another leg - or is it staying short ?
3.Is my TD airbox going on this project ?
Please say NO !
1. A machined flat 9X9 chunk of steel and sandpaper. I think I used 4 sheets of 400 grit and then a final sheet of 1500. I spent close to 45 minutes just sanding.
2. I have a full exhaust on my car now. It has 2 mufflers though so I might be changing it all around again.
3. Nope, I have a mk2 air box I'll be using. Yours is safe.. for now I finally got mine from Poland[ 8 weeks in transit] and will be hooking it up once i get the Donaldson air filter mounted. Mine didn't have the EGR inlet however and so will need minimal if any cleaning. I never pulled a motor to change a rack though !
Glad to hear yours arrived. You'll want to enlarge the ports on it to match the head. They are very tiny for some reason.Any more info on this Donaldson?
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I got a bit more done today. I drove around for 4 hours picking up a dual headlight setup and G60 valve cover. I sandblasted and primered the valve cover but I don't know what color to paint it. There are far too many choices out there. I also drilled the holes in the head to secure the valve cover. I think I messed one of them up but I'll find out once I get them all tapped. I guess worse comes to worst I'll just drill out the hole in the valve cover a bit and run a washer.
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I have a mk2 air box I'll be using.
You gonna knock the bottom outta it - or poke any holes in the side of it ?
...drilled the holes in the head to secure the valve cover
That is hardcore doing it up right there by golly.
Yours is safe.. for now
ahem.... whew that was a close one - lol.
Thanky ;)
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I don't know what color to paint it. There are far too many choices out there.
hot pink. if anyone ever questions it, simply mutter something about the car being the boss, and she has better taste.
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Hot pink... I like it lol
So major oversight on my part. I decided to go with the fiber headgasket. I ordered it and it came in and I went to fit it when I realized that the bores are different diameters. Yep, sure enough the pistons hit the headgasket. Now I need to use the metal one which really worries me. Last time I did this with this much warpage it didn't seal. I just finished putting the head all back together too >:(
I got the G60 valve cover to fit. Turns out I misdrilled 6 of the holes and had to slightly enlarge them in the valve cover. No big deal as far as I can see.
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You can't get a fiber gasket for the AAZ?
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Hylomar or some copper coat headgasket spray is about all thats left. Ask a blessing - pray and torque. Return thanks if it holds.
Its getting almost impossible to touch anything without it getting collateral complications or snowballing. Just keep marching soldier. :)
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You can't get a fiber gasket for the AAZ?
I tried to get one for a 92 Passat AAZ which originally came fiber (so I'm told) but it was the same p/n as the metal one. I think I'll suck it up and get the head machined.
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Good news or bad news... good news or bad news...
Lets go with the good news first.
I got my valve cover to fit and gave it a few coats of paint. I think it's pretty snazzy.
(http://img.photobucket.com/albums/v603/burnyourmoney/IMGP3953.jpg)
And now the bad news. The warpage was really scaring me so I bit the bullet and decided to get the head machined. A called around to a few shops and found one that sounded like he knew what he was doing. He's done lots of them, yeah no problem, bring it in, $75. It'll take an hour.
So I pull all my valves out (again) and 30 minutes of driving later I am at his shop. I hand him the head and pull up a seat. 2 hours later (at closing time) he comes up and says "I can't charge you for this". Never, ever what you want to head a machine shop say. Apparently my head was funny and his machine didn't like it and it kept chattering. They couldn't get a decent surface. They've taken off 0.005". He told me of another shop that has a different machine so I will try there tomorrow.
(http://img.photobucket.com/albums/v603/burnyourmoney/IMGP3950.jpg)
It was hard to get a decent picture and I was using Giles's camera which I am unfamiliar with.
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So I brought my head to the other shop and thankfully they knew what they were doing.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08436.jpg)
I never really liked that my pump was just a turned up 1.6 pump with 1.9 delivery valves so I decided to swap in the 1.9 NA camplate.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08425.jpg)
Then it was back on the test stand for some recalibration.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08427.jpg)
Thumbs up for sweet success
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08430.jpg)
Then off to paint
Primer first
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08432.jpg)
Then the first coat
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08434.jpg)
While I had everything apart I figured my flywheel (200mm) could stand to lose a few pounds so I sent it out.
Before
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08423.jpg)
After
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08421.jpg)
Before and After
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08424.jpg)
I hope this works ;D
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Head looks great now.
I'ma say shop #1 was stretching the truth just to try and get the work/money.
That poor flywheel sure got skinny, lol.
Mk2 calibration/test machine ... what a coincidental name !
Is that the main man behind all the magic (Giles) in those shots ?
And what color is that you put on the pump and Vcover ?
Light blue metallic - Pontiac engine blue ?
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Does it cost more or less when Giles doesn't have a lab coat on?
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I heard rumors that it was 47 degrees C with the humidity today so I was lucky to get him to do any work at all :P
And yes Todd, that is the man known as Giles
I think the paint is called Machine Grey or something to that effect. I'll check tomorrow.
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I heard rumors that it was 47 degrees C with the humidity today...
OUCH !
Thats 116 F !
Was only 99 with index of 107 here today.
Tomorrow its supposed to be hotter. ::)
We've been running about 10+ F degrees over normal averages for past 2 months. Had one 'mild' spell for few days about a week ago.
Its been murder. And it aint even August yet ......
The pix look grey or blue. It was a tuff call.
I'm guessing Giles made you get all the purplepink paint off before he would touch that pump. It worked out for the better. lol
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1 week ago I was driving in the middle of the after noon with the heated seat on, today its 33 and going to feel like 40.....
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Machine gray is the name of the paint
After searching the forums for hours I decided that it would be best to peen my precups since they were loosey-goosey in their holes. I placed the headgasket on the head and peened 2 areas that were inside the combustion area, away from the sealing ring on the headgasket.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08437.jpg)
Because the AAZ is a bit taller then the 1.6 I had this spacer made for the exhaust.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08440.jpg)
As you can see it was a bit too small. This fixed it
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08441.jpg)
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08442.jpg)
Some progress
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08443.jpg)
I had to make an EGR block off plate for my intake
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08446.jpg)
Luckily I don't like throwing things out and I was able to find a hose that worked perfectly for my CCV
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08447.jpg)
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08448.jpg)
I wanted to bolt the tranny up to the engine tonight but I noticed that my clutch push rod had extreme play in it. I had the bushing but no seal. Hopefully it will come in tomorrow and then it's time to go for a test drive :D
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Looking Good and coming along Great.
....except for that nasty looking shortblock !
Just a suggestion - get an old paint brush and degrease it (engine) with mineral spirits. Let dry. Buy a pint (0.5 ltr) of oil base enamel [insert color here]. Brush 2 coats with a decent brush.
Will look like new and hold up for years.
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Thanks Todd. Unfortunately time is of the essence. I figure I'll deal with the block when I rebuild that in a few years.
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I use to try to keep an open mind about time, years ago.
But time suxx, it just does !
After you get running good and settled into new destination, you could just use Gunk degreaser on shortblock and rinse. Wait a day. Then brush on a couple coats. The brush is easy to do versus spraying/masking and gives better film build.
Minimal masking required.
I use a 1" brush with handle cut off.
Will go about anywhere you want it to.
I do spray the valve covers, but you got that covered already.
It all looks so good otherwise, i'd have to slap some paint on that block. But too, i'm a painter anyway. ::)
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Hey Tyler! you and I at the same time! Except your intake is better than mine.
I removed a similar amount of material from my head too but this was the second time going at it!
What really gives you a 1up is the injection pump work you've got.
all i've got in mine is really good dynamic advance and a 1.6td boost pin and almost no governor.
when i ported my valves i used the carbon shadow outline as a guide for material to remove and i tried my best to carry the width all the way down the runners. but i got scared quickly and flap wheeled it.
my flap wheel got the finish a little smoother than that but your exhaust ports look much nicer than mine.
oh and i got a piece of something in my eye and had to go to a walk in clinic and get viscous drops for my eyes... they got visciously infected within a couple hours. Glad to see you were more careful (i did wear eye protection)
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I'm really not that worried about the block. My bay looks like crap and I don't want to fully overhaul this car any time soon.
You are crazy Eddy. I was worried taking that much off! I was quite afraid of getting too close to a coolant passage and causing a crack or overheating problem.
How do my exhaust ports look better then yours? Have you posted pictures? I did use a flap wheel but I didn't bother trying to get it super smooth. It's going to be full of oil or soot soon enough so I just see it as wasted effort.
That piece of something must have hurt. Is your eye healed?
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In ya go
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08451.jpg)
Here's a neat trick for pushing the bushing out so you can get your alternator in place easily
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08454.jpg)
Here I'm using a prybar to hold the rotor from turning so I can torque my inner CV bolts. The prybar is wedged against the ground. Also notice the elastic on the triple square bit ;)
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08455.jpg)
Closer
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08456.jpg)
Done! (enough to take it for a quick test drive anyways) - Notice the lack of rad support/headlights.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08459.jpg)
I installed one of these thin rad fans because all the mounting points were rotted off my fan shroud and rad.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08460.jpg)
And here is a horrible, horrible video of test run #1 ;D
(http://img.photobucket.com/albums/v603/burnyourmoney/th_MOV08461.jpg) (http://smg.photobucket.com/albums/v603/burnyourmoney/?action=view¤t=MOV08461.mp4)
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those inj. lines are sweet lookin, they aaz specific? they are bent alot differently than the 1.6 lines im used to..
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I cant do the videos with my turtlecharged internet.
Whats the count on test runs up to now - hows it doing so far - all biscuits and gravies staying in place ?
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Thanks, and yes they are AAZ specific. Taller injectors and longer delivery valve holders...
You aren't missing much of anything Todd, it's a miserable video. So far only the one test drive. I was at my friends cottage all weekend so it has been waiting patiently for some more attention.
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nice progress man :)
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Is this done yet? Looks good so far.
Can you tell if the porting made a difference?
I'm sorta getting ready to do some gasket matching/porting and I wouldn't mind hearing a first hand account.
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Well I should probably update this thread...
I finally drove this car about a month ago. I had ended up giving the car away to my younger brother about a year ago and just haven't been home so I never had a chance to drive it.
WOW it's quick. I wouldn't be afraid to line up against any stock 1.9TD in a MK3 or possibly even a mk2. In a mk1 I might get a beating but I doubt it.
Most mildly tuned 1.6TDs wouldn't be a problem either, it could already beat them before all this work was done.
As for what mod had the most effect, I have no idea unfortunately.
I know it rattles pretty good when cold (winter cold) which is probably a combo of the porting and lightened flywheel, but mainly the flywheel I think.
The powerband feels almost exactly like a gas 1.8l 8v in stock form. Good pull all the way through the RPMs. It would be a lot quicker if I didn't have the 3.67 final in the tranny but I think it is a good trade off. My brother says the mileage is great but has not actually measured it. It isn't his first diesel so it's not he is coming from a VR or V8 or something silly like that.
It still needs a proper sized exhaust and I do have one of Dr Diesels cams sitting around in a box... ;D
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Hey BYM, did they remove the pre chambers when the head was shaved down? Was process cutting (fly cutter?) or grinding (with a stone)?
Machine gray is the name of the paint
After searching the forums for hours I decided that it would be best to peen my precups since they were loosey-goosey in their holes. I placed the headgasket on the head and peened 2 areas that were inside the combustion area, away from the sealing ring on the headgasket.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08437.jpg)
Because the AAZ is a bit taller then the 1.6 I had this spacer made for the exhaust.
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08440.jpg)
As you can see it was a bit too small. This fixed it
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08441.jpg)
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08442.jpg)
Some progress
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08443.jpg)
I had to make an EGR block off plate for my intake
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08446.jpg)
Luckily I don't like throwing things out and I was able to find a hose that worked perfectly for my CCV
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08447.jpg)
(http://img.photobucket.com/albums/v603/burnyourmoney/DSC08448.jpg)
I wanted to bolt the tranny up to the engine tonight but I noticed that my clutch push rod had extreme play in it. I had the bushing but no seal. Hopefully it will come in tomorrow and then it's time to go for a test drive :D
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looks good. but find another one of hoses for when that one gets degraded from the oil. It's a coolant hose and won't last more than a couple of years.
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Thanks. I'll mention it to my brother since this is his car now.
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isnt it a 16v heater hose or something? with one elbow cut off?
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isnt it a 16v heater hose or something? with one elbow cut off?
Unlikely, I only play with diesels so it's probably off a 1.9 or 1.6 TD
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isnt it a 16v heater hose or something? with one elbow cut off?
Unlikely, I only play with diesels so it's probably off a 1.9 or 1.6 TD
i swear to you that its the EXACT same shape as the 16v heater hose i put on my car not long ago..
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VWs are like legos :)
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VWs are like legos :)
Indeed ;)
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Ok so 120 000kms later she's still running just fine. My brother does pizza deliveries so he racks up the miles. He still hasn't done a proper mileage test but this weekend for my sisters wedding he drove 4 hours highway fully loaded, tail dragging and only used 1/3 of a tank. Hopefully he gets some real numbers soon but I'm not counting on it.
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This was in a mk2 right? What all was done besides the porting and the flywheel and dual port header? Gov mod? Fuel?
I'm really tempted to pull out my head when I do the turbo install and do some work on the exhaust ports. Also considering porting this Gasser intake manifold. Would I notice basic gasket matching like you did? On a n a? What about a TD?
Sent from my ADR6400L using Tapatalk 2
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See the IDI section. There is a sticky called do it yourself porting, David Vissard or something similar. The exhaust side is little gains. The intake side is where it is at. Read it all 4 times and it will start making sense.
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See the IDI section. There is a sticky called do it yourself porting, David Vissard or something similar. The exhaust side is little gains. The intake side is where it is at. Read it all 4 times and it will start making sense.
Yes sir! I have read through that once but as you said it was a bit over my head. I will endeavor to read a few more times and get it down.
Thanks!
Sent from my ADR6400L using Tapatalk 2
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This was in a mk2 right? What all was done besides the porting and the flywheel and dual port header? Gov mod? Fuel?
I'm really tempted to pull out my head when I do the turbo install and do some work on the exhaust ports. Also considering porting this Gasser intake manifold. Would I notice basic gasket matching like you did? On a n a? What about a TD?
Sent from my ADR6400L using Tapatalk 2
It was done in a 90 or 91 Golf. It has a Giles pump and a 1Y intake manifold.
Most of the work needs to be done on the exhaust side if you are just gasket matching. The intake line up very well. I'm in the process of porting another head right now. If you run your finger in the ports exiting the head you will feel sort of a screw design in the casting. I'm pretty sure VW did this on purpose to have the air swirling in and out of the head. I simply try to smooth the rough areas and make the ports a bit bigger where possible without messing up this swirl effect.
I'm not sure how noticeable porting on it's own would be. Probably somewhat but I think even more so if you've upped the boost and opened up the exhaust.
I'm not sure if the gasser intake manifold causes the air to swirl, I know for sure that an AHU/1Z intake manifold does and I assume that the 1.6 TD one does as well. Next time I'm cleaning a intake out I'll try it on a 1.6TD manifold if I have one kicking around.
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Hey BYM, did they remove the pre chambers when the head was shaved down? Was process cutting (fly cutter?) or grinding (with a stone)?
I'm a little late but I'm just seeing this question now.
The first shop that messed up the head did not remove the precups. The second shop that did it right did remove them.
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Awesome thanks for the info. I'll compare my n/a manifold to the gasser one when I swap that on and check for swirl. If the swirl isnt there am I going to mess up my efficiency? What does the swirl actually do. Makes sense to me on the intake side for fuel mixture. But on the exhaust? Some kind of vortex affect?
I thought gasser intakes were preferred for less bias towards the center cylinders? If they don't have this swirl though I wonder how that would affect flow comparison?
It seems to me that the free-er flowing exhaust and intake ports and manifolds very positively affected his fuel economy. I mean I don't know how big the mk2 fuel tank is. But 4 hours at 55mph is 220 miles. 11/3 is 3.6 gallons. 220/3.6= 60mpg? I still can't squeek out more than 46 in my lighter mk1.. thus the hunting for greater efficiency.
Sent from my ADR6400L using Tapatalk
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It seems to me that the free-er flowing exhaust and intake ports and manifolds very positively affected his fuel economy. I mean I don't know how big the mk2 fuel tank is. But 4 hours at 55mph is 220 miles. 11/3 is 3.6 gallons. 220/3.6= 60mpg? I still can't squeek out more than 46 in my lighter mk1.. thus the hunting for greater efficiency.
Sent from my ADR6400L using Tapatalk
Yeah, but don't forget the Imperial gallon is bigger...
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It seems to me that the free-er flowing exhaust and intake ports and manifolds very positively affected his fuel economy. I mean I don't know how big the mk2 fuel tank is. But 4 hours at 55mph is 220 miles. 11/3 is 3.6 gallons. 220/3.6= 60mpg? I still can't squeek out more than 46 in my lighter mk1.. thus the hunting for greater efficiency.
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Yeah, but don't forget the Imperial gallon is bigger...
But he didn't reference gallons? Just said 1/3 of a tank. I'm sure 60 is unrealistic. But surely 1/3 tank over four hours of driving is more than 40-45 I see commonly from n/a owners is all.
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