Did you weigh your car, or just estimate?

Nice - great info, and always good to have more data, especially a totally bone-stock baseline.  Thanks for sharing!

PS - I have not seen a '91 Jetta 1.6lTD before, I think it was not sold in the US market but must have been a canadian only thing.  (It's not an "ecodiesel" is it?)  Engine code is "MF" right?

Does it have the same turbo that the earlier 1.6lTDs had?  (It looks like it does based on the dyno plot, but I'm just checking to make sure.)

Gotta love those RPM-sensing G-techs.  That is great that you are experiencing good repeatability.

Oh and by the way, which gear did you use for your HP & TQ vs RPM testing?

Hey, she's pretty - holy-rollers and everything!  

Is the suspension stock, or just old?  


Those are decent numbers too for a bone stock car, how many miles/km's on her?


Brendan
84 Scirocco 8v
00 Camaro L36 M49

Sweeet .   :wink:
Looks alot like my 92 TD Jetta (Silver though). Very curious how your machine will look/perform after each mod, as I have big plans for mine now that I've decided to spend the money on her instead of on a new TDI. I figured no matter what I spend on mods and wheels and suspension and stuff, it will be significantly less than a new(er) TDI, so she's gettin pimped out, not too much though. Where did you take that pic BTW? I can't figure out if it's true West Coast, or just really windy that day.

My car is waaaaay faster now . On Sunday and Monday I drove an hour to Brett's (DVST8R) shop and the following was done to the formerly stock 1.6TD:

1) Boost pin washer/spacer mod.
2) Electronic boost control. It's currently set at 24 PSI with barely any boost spikes. We ran it at 25 for a while.
3) Fuel injection quantity maxxed out.
4) Fuel governor mod.
5) 2.5" no-cat custom mandrel-bent downpipe to 3" exhaust (starts at bottom of downpipe).
6) EGT probe drilled in pre-turbo.

... and a few more. Big props to Brett for the help. I've had the TD for only a little over a week so I learned a lot during the process.

On Sunday I had leak in the back of the fuel pump where the cold start lever attaches to. We fixed that Monday. Rebuilding the fuel pump is a little easier than it looks.

So far the power is great, a big improvement. A friend of mine commented that it accelerates a bit harder than his MK3 VR6, but different torque curves can play tricks on the mind. Regardless, I plan to get the following done soon:

1) 1.9L TD 3-hole metal headgasket.
2) Raceware or ARP head studs.
3) GTD injector nozzles (should be here Tuesday or Wednesday).
4) Advance fuel pump to 1.05mm.
5) (pending) a clutch.
6) A little weight reduction.
7) INTERCOOLER.

I want an intercooler real bad. Currently, I can reach 1,600 degrees Fahrenheit by the middle of 3rd gear WOT after launching from a stop. Advancing the fuel pump and new nozzles may help improve the power/smoke ratio a bit.

Yes, my TD's smoky. DVST8R lives in a rural area so smoke doesn't matter much there... but I commute (45 min) to Vancouver that has very heavy traffic. One of my co-workers was unfortunate enough to be behind me on the way to work (we just bumped into each other). At 10% throttle while accelerating as gently as possible, my co-worker "couldn't see anything" (past my smoke) as he put it. I couldn't help but giggle.I probably raised Vancouver's smog level by 50% this morning

After work today I'm going to reduce the fueling a bit and keep it there until the next mods are done.

That's a quick summary for now. I have lots of pictures of the project. I'll try to post them later tonight.

I gotta get back to work now as I have lots of catching up to do.

Later,
Mark

We tried to do some g-tech runs on both our cars, but the g-tech was acting up so we didn't get any real numbers. Mark has another g-tech so he will try it with that.

Like Mark says I live in a rural area with tractors, rigs, and dodges and nobody cares about smoke so I have mine kinda smoky  :wink: .

Mark took lots of pics. Those pics should answer once and for all "Where do I put my EGT probe?"

We also started work on dave's caddy, he did a bit of a cusom cut fuel pin, but we ran out of die grinder bits (cheap bits) He is coming over Wednesday evening and we are going to do his Downpipe, and then in two weeks when I return from Edmonton we are going to do the Gov, mod and all the rest of the tunning. He has enough space for a monster intercooler! Stay tuned for some seriously quick Chilliwack tuned TD's.  :twisted:

How did you run a 2.5" exhaust, did you cut off the stock toilet bowl and weld it on the 2.5" exhaust, or did you make a new downpipe as well?

Thanks,
Ray