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Quote, originally posted by BigBlockBug »

I did testing on a Dyno and switched bewteen a 3 bar and 4 bar. I did a hard clear, and drove for 10 miles, made 3 runs on the 3 bar. pulled off the dyno, pulled the FPR put in the 4 bar, another hard clear and drove almost 20 miles ( home to get lunch and back) back on the dyno 3 more runs. We monitored AF with a wideband tail sniffer at EVOMS dyno facility and the 3 bar was running about 16:1 low and fattening up to 15:1-14.5:1 in the peak. On the 4 bar It was about 15.5:1 low and fatened up to 13:1 at peak. I made an average of 3 WHP off the 4 bar as well. from the best run on the 3 bar and the worst run on the 4 bar it made 1 WHP. HP wasnt my concern anyways though, AF was

Your car had a 14.5-15:1 a/f ratio on the stock motor? Is there something up with your car or does VW run them that lean? I run a mid 14:1 a/f ratio under light load and into the 13s or high 12s under load...and it's still more lean than I'd like.

thats my guess

Thats the reason I went to EVOMS, to confirm my apprehensions with a trusted facility. The sniffer had just been tweaked, and they even ran out and bought all new tubing and piping for it to ensure the accuracy of the readings.

I am also going off loose memory on the numbers, Im pretty sure im damn close, but could be off a bit. Ill see if I can dig up the old dyno sheets


Modified by BigBlockBug at 6:48 PM 8-15-2005

I don't get PM's john.m.streeter@gmail.com

hey thats what i run... and you think its still too lean??

"Let Time Tell The Tale" A quote from the great BEAU-SOF

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Quote, originally posted by BigBlockBug »

, it scared me a little, I had dynoed at another facilty a few weeks before and due to their crappy eqipment they tried to tell me my AF was over 18:1 at 4k RPMs and up. I told him he was a F'ing moron if he beleived that because if that was the case I would have melted a damn piston or predetonated the shop to the ground. Thats the reason I went to EVOMS, to confirm my apprehensions with a trusted facility. The sniffer had just been tweaked, and they even ran out and bought all new tubing and piping for it to ensure the accuracy of the readings. I am also going off loose memory on the numbers, Im pretty sure im damn close, but could be off a bit. Ill see if I can dig up the old dyno sheets Modified by BigBlockBug at 6:48 PM 8-15-2005

what shop was that...

If you're turbo, yeah. I'd like to see my car in the low 12 range, even high 11 range around the torque peak. 13s is too lean for a turboed car in my opinion.

Arizona Dyno Chips. That was the Dyno day when Brian put his pocket bike on the drum and got 1.6 Horse to the wheel Ill try to upload the videos I have them on CD

I don't get PM's john.m.streeter@gmail.com

that's hawwwt .. pocket bike dyno..

Quote, originally posted by BigBlockBug »

Arizona Dyno Chips. That was the Dyno day when Brian put his pocket bike on the drum and got 1.6 Horse to the wheel Ill try to upload the videos I have them on CD

That is one of the funniest things I've ever heard of. What does that convert to at the crank? 2hp?

thats funny though i wanna see a vid of a pocket bike on a dyno.

http://videos.streetfire.net/p...96BE2

I don't get PM's john.m.streeter@gmail.com

621whp Jetta GLI
http://forums.vwvortex.com/zerothread?id=4732458

621whp Jetta GLI
http://forums.vwvortex.com/zerothread?id=4732458

oh, and about the 4bar...some, not all, but some owners have found relief from their dentonation issues with GIAC software by installing a 4bar fpr...i just put one in, hence the previous post, with a slight decrease in pinging...

btw....shouldn't u be busy tryin to boost somethin'

621whp Jetta GLI
http://forums.vwvortex.com/zerothread?id=4732458

But really, adding more fuel without FI wont help, that much...

Modified by VR6JettaGLI at 1:38 AM 7-20-2006

621whp Jetta GLI
http://forums.vwvortex.com/zerothread?id=4732458

I did have a thought on this, the one dude got about a 1hp average gain right? $50 for 1HP is actually not that bad when you consider a VF will set you back about $5000 after install for about 80HP. The price per HP is actually cheaper for the FPR.

I wonder if I got 50 of them and linked them all together, would I get 50 hp. Sweet.......

621whp Jetta GLI
http://forums.vwvortex.com/zerothread?id=4732458

Thank you to whoever brought this back from the dead. I have had big problems with pinging on my big valve head Mk III Golf with MkIV gasket. This thread has given me a good understanding of the work involved, costs and potential benefits.

My question is whether it would be even better to get a fully adjustable FPR from ECI. They are nearly three times the price, but I'll wear that if they will give me a better outcome.

TIA.

I think you got it on the power to cost ratio, I gave up on the F/I plans for this car. N/A to me is more reliable, consistant & did I mention it will continue running. Some would rather boost 20 psi on a high comp. motor, that is not gonna last, sure you will have fun with it, but for a short period of time.

But I don't see the fpr doing much other then solving the detonation & fuel delivery problems they were talking about earlier. If your combining it w/ intake,chip flash,exhaust & even cams I could see this having a bigger effect. It took me a while to get intake & exhaust on this VR because the payments & insurance + weekly living are ridiculous. I wanna get chipped with giac soon & I already scored a 4bar fpr from a wrecked audi A4. I don't think I'm gonna put it in yet til' after it's chipped unless some body could proove that it will be fine w/ stock ecu.

I had ****ty tunning done to my old mk3, this time around it should better.

200hp 195tq 14.7@94MPH