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Engine Specific Info and Questions => IDI Engine => Topic started by: catlin_cava on September 12, 2008, 09:43:06 am
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Ok, so i got my golf's diesel conversion done...Now it comes down to I need it to be fast... A couple friends of mine have cars like Cobalt SS Supercharged, Grand Prix GTP with a Supercharged 3.8L V6, Mazda 6 GT 3.0L V6, G5 GT...What can I do to get my car to beat them... :twisted:
Oh and the guy with the Cobalt SS also has a Firebird with a 350...I HAVE TO BEAT IT...lol :twisted:
Catlin
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Its your daily driver too ?
As they say, speed is just a question of money !! LOL !!! Are you going to do all the tips on here about tweeking your IP and turbo ? Do you have an intercooler ?
If I were you, I'd also do propane injection. It will give you more power, and more MPG, but use a gas that is cheap and easy to get - as opposed to NOS.
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well they can beat you to the fuel pump :lol:
why don't you just drive and save your money :wink:
for the amount of power you would need to beat any one of those cars, you will need a heck of a lot of money. for starters, dave aka 935racer is selling his complete turbo kit for $1800 (this is a STEAL!). this will only get you started. from there you will need a good pump, and i would highly recommend getting Giles to do it - another $950. injectors should be re-done and calibrated - about $200 total. you will also need head studs to keep everything clamped down - about $100 or more.
so you're at $3050 and that is a pretty good price... but it will only get you to around 180hp... maybe a bit more. and theres still a lot more to consider, such as brakes, suspension, bushings, etc...
so if you have money to burn, then you could probably beat them, and if not, just save your money :wink: not to mention the insurance cost, and the monthly payment :roll:
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Only the Cobalt has a racing suspension on it...and i think hes the only one out of them all that knows how to drive that car fast...4500RPM in 5th with a 6500 cut off...210kph...my 1.8L gas would stop at 210 at 6500 :shock: I plan on upgrading my suspension and lowering the car down..No I don't have a intercooler and yes its my daily driver...my commute is only 5 km one way...I remember taking my sister's MK3 with the 1.9 in it and going wide up unmodded and going about 240 with it...
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propane doesn't work too good on IDI.
for acceleration its not power that counts, its power to weight ratio.
the less weight you have, the less power you need.
so, get their power (dyno sheet), the weight, frontal area, Cx, tires used.
then calculate their acceleration, you will be surprised on how many horses they waste on dragging excess weight.
for top speed you need horsepower, a LOT, as the Cx of the golf is ridiculous for todays standards.
basically you can beat them at the lights, and 100m later watch them go away. (that is after you spent a LOT of money in the car)
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Depending on what's been done to the 350, remember there is no replacement for displacement. Even more importantly, remember speed kills! Been more than a few street racers around here that have killed themselves, their friends, and innocent people.
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Honestly, you won't ever be faster than any of those cars.
You can't compare a little 1.6 (I assume) engine to 3 litre engines. Especially if they have them supercharged. :lol:
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I have a 1.9 in it, and high speed races is over for me...I got caught last fall in a race and should of got nailed with a 700$ fine and 8 points...for us its a 1/4 mile strip that we play on...I know I could out run them all :P let them go wide open for 30 minutes and let them all find a gas station...My golf is actually the slowest car I've ever owned...
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if you're looking for top speed, just get a TDI PD150 6 speed tranny and stick one of those 0.655 5th gears in it... that thing will go way over 210km/h...
here in Ontario your car will be impounded if you go over 50km/h or race... and maybe crushed depending on the circumstances...
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I was thinking of getting a VR6 6speed tranny for it...i kept my CL's 5 speed so i get quick take offs
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quarter mile... get all the extra weight off then ;)
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I would not be so quick to dismiss a 1.xL modified diesel vs. the 3.0L "stock" gassers.
Porsche is famous for doing more with less, and VW has surprised race competitors with small diesels by winning.
http://www.autobloggreen.com/2007/06/04/vw-race-touareg-wins-baja-500-class-on-single-tank-of-diesel/
But, more specific to your quest is this Dodge I-6 5.9L (?) Cummins vs. a Viper V-10 8.4L (?)
http://www.dpccars.com/car-videos/11-16-07page-Dodge-diesel-truck-vs-Dodge-Viper.htm
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The local import shop told me for about 1000$ to could get my car to beat anything on a 1/4 mile...and my back seats are clipped in so i can remove them when i need too
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Are you any good at fiberglass faborication ? You could make a carbon fiber replacement for your hood and trunk - same a fair amount there.
Are you concerned about crash safty on the highway ? All the glass except the windshield could be replaced with 1/8 or 3/16" polycarb. This will shead LOTS of weight, but could be an issue if you ever crash on the street.
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I'm going to lighting the the front end with a fiberglass front bumper and looking at a carbon fiber hood...and i'm getting all light weight rims put on...If i can't out run them, i want to out perform them :twisted: and i need to keep the glass...because we have stricked safety laws...and I can't afford to get caught with an unsafe car...I'm trying to get into the RCMP...
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no offense but your local import shop probably has no idea about IDI's. they do know how to collect money tho :lol:
A friend of mine owns a very reputable speed shop, he specialises in turbo-ing gassers and modding dieseld ( tdi's and trucks ) ... but he could do virtually nothing for me and my IDI 'cause he know's nothing about them!
by the way, 1000$ won't get you far, my friend will be fabbing me up a 3" exhaust from turbo to tailpipe that will cost me $600 and this is a deal! ( he's only charging me time for his welder and cost on parts )
don't forget that as soon as you hit about 100-115HP your stock clutch will start slipping... another $500 at least.
Basicly IMO all your local import shop will do is take your $ and give you little in return.
remember: Fast + Cheap = not reliable
Fast + Reliable = NOT cheap
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They Specialise in doing IDI and TDI swaps into gassers...They are recommend by most VW dealers around to go there...and it was 1000 for motor mods... but he didn;t mention to me what they would do...Diesels are an unknown territory for me...I can take a gasser and make it fast as hell...I'm new to diesels
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Most likely all they will do is turn up your fuel and turbo. all things you can do yourself for free, search out "how to make your 1.9 TD faster " I think it's in the General section.
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The local import shop told me for about 1000$ to could get my car to beat anything on a 1/4 mile...and my back seats are clipped in so i can remove them when i need too
$1000? what does that include??? getting Giles to re-do your pump will give you about 120hp if you request that much fuel...
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The Funny thing is they wouldn't tell me...I'm going to look at making the car faster on my own because i love Doing my own work \
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I was thinking of getting a VR6 6speed tranny for it...i kept my CL's 5 speed so i get quick take offs
the diesel has an overall taller ratio transmission... i would imagine 250km/h+ possible... 8)
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would that be a tranny out of a GL because I've got a 94 GL that my IDI came out of...or is there a way i could make my own tranny... :twisted:
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This ambition strikes me as slightly ludacris.
If you manage to "explode" that much power out 1.6 liters of displacement... using diesel... i don't know if it would last 1/4 mile
Im making like 25% of the power to beat those cars and i've put a significant amount of money (but mostly time) into mine.
Your shop giving you a $1000 quote to beat anything on the street is basically a slap in the face and their saying "yeah ... give us your money... we'll .... change your filters!!! and you'll be the fastest car on the street! a thousand bucks please."
You can find threads of people making 200hp on here and the amount of work is rediculous. ceramic pistons, aaz heads ported of course, giles pump and injectors, intercooler, t3/t4 turbo hybrid, build trannies, suspension, all kinds of cooling, egt set ups, custom downpipes and exhaust, not to mentioin some kind of LPG injection (i know it doesnt work the greatest on IDI but it is still a power enhancement in my opinion)
Like Jim said, there is no replacement for displacement. You can come darn close but those bigger engines will keep climbing the speedo. I built a '73 nova with a 400 in it. no mods other than over bore. just a holley carb, edelbrock manifold and open headers, with a 3:7:3 and it did 12 seconds... it was stripped bare of course but engine wise all it was was a big empty space that had gas sprayed into it and it blew up big enough to go extremely fast and couldn't drive anywhere but in a straight line of course.
You can make yours more FUN to drive and a lot cooler ;) with that kind of money
and that's better than being a few tenths of a second seconds faster on the light i think. and you'll burn 1/20th the fuel!!! You'll appreciate how much less you burn once you get everything tuned up nicely.
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you might be right...after the time i've spend on this car...and smashing it in some race or loose it would kill me...i should fix er right up and mmake one nice "show diesel" to show all the ricers diesels are cooler 8)
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WOW this is a nice thread to follow :D
But remember it's not speed that kills but rather coming to a sudden stop :twisted:
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WOW this is a nice thread to follow :D
But remember it's not speed that kills but rather coming to a sudden stop :twisted:
or too much G's :lol:
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lol I just want to be able to out run the stock gasser vanagons on the road about 75 mph should be able to do that.
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You want to beat your friends? Take $1500 and buy a motorcycle. Then take another $1500 and buy all the safety kit. Then spend another $500 on track days.
You'll be far ahead of the game.
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discovered my top speed...148kph...at 4600RPM...I need a different tranny, and we race on tracks...