Clearing 50 mpg

[Laurentian]

Rammstein, what tranny ( gearing do you have? )
Mine : AWY 3600+ rpm at 120 km / hour :shock:

[jtanguay]

question, i have my fuel turned up, no smoke at cruising in 5th.  Boost is runnign 20psi, when i'm crusing its about 10psi-15psi depending on how high above 100kmph i am.  Will i get better milage if i run less boost?

In theory, yes.  You really only want boost when you require additional power from the engine ie: passing, hill climbing, accelerating onto the highway etc.

[zagarus]

thats where the magic comes in  :wink:

[Cheesetoast]

there is an adjustment on the front of my pump that i had changed by mistake.  It seems to adjust how much boost you get proportional to pedal depression, i'll take some pics later.

[houseofdiesel]

You want to have a trans with highway gearing, that is for sure, AWY is a useless trans....try a ACN, 4S, AUG, AGS, lots of highway trans out there. I had an AGS with my 87, I would regularily get 1000kms a tank in the dead of winter in the Laurentians driving less then 10 minutes to the ski hill (work) two tanks all winter, then in the summer I got 1200-1400 kms commuting back roads. Sunoco Gold was worth about 100kms a tank too.
I find the better the diesel runs the better the mileage, even when it comes to adding more fuel the economy goes up and up, kinda the reverse of gas motors! My 1.6 non turbo was out running most turbo diesels on the road, especially over 100km/h. (unless that turbo was properly tuned that is). Throttle response was amazing...
Coming soon an AWY equipped 92 Jetta diesel (non turbo) with SMOG GTD nozzles and tuning/exhaust, I think first gear will be useless once tuned...I am building it up for a client to tow with.
Greg

[houseofdiesel]

And flat out cruising back roads (145-160km/h depending on hills) controling the local mosquito population I was still getting over 1000kms a tank...

[RAMMSTEIN]

Rammstein, what tranny ( gearing do you have? )
Mine : AWY 3600+ rpm at 120 km / hour  

I've got a AUG, 3000 rpm at 92 kph...

That's the speed I'm going at also.

Last tank:4.73 l/100 km and 1223.1 km.

That's 60 mpg in Imperial gallons (50 US mpg).

Houseof D, I think any tranny with a 3.67 final drive and a .71 5th gear would be better than what I have.

Mine is supposed to be 3.67 and .89 fifth, maybe the speedo cable is wrong.

A .71 would give around 2500 rpm at 100 kph.

I just got my cruise control, got to put it in, that it'll be fun...

Got to change ball joints, tie-rod ends, wheel bearing and such before alignment, the car pulls a little bit to the right. :evil:

[A Guy]

This topic interests me greatly.  

I just got a 94 golf 1.9 td 5spd and I am not impressed w/the mileage I'm getting.  I thought it'd be better than my 91 1.6 na 5spd and it''s not.  I've run one and a half tanks of fuel so far and I'm not even getting 800K to a tank and I beleive it's a bigger tank.  Now I'll be honest This is my 1st turbo diesel and I've been "trying it" over the last week and a a bit but nothing too crazy. :roll:
THat being said, I'm usually crusing on the hwy at 120km/h.  I drove my 1.6 na between 130 and 140 and I got the same mileage as I'm getting now.  
Now for the loaded question....Where do I start? I need this thing to get above 50 mpg .  
You guys have been so good to me since I became a vw owner a year ago and now I'm on my 2nd so I really hope the support continues cause I'm not happy at all with the mileage on this car.   :x
Out!
Greg

[A Guy]

Another thing I should mention is my cold start or timing advance does not work.  The handle pulls in and out but nothing moves behind the pump and there's no change in the RPM's.  I currently idol at 1000.  This is too high.  i think it's supposed to be around 8oo and change if I recall.  ANy advice is greatly appreciated.  
Just saw house of diesel chiming in.  Check PM
Out.
Greg

[wyldman]

Your pump probably just has the timing advance,and the idle boost is done with a vacuum solenoid.You will not really see any RPM change with the cold start lever,especially if your idle is high.