VaGPuncher's "Just another big turbo thread"....

[VaGPuncher]

dyno pls

hopefully in a few weeks..

[hly]

my laptop is shot( screen fell off) so i'm waiting on a friend that has one for me than i will log..we are also looking for an AWD dyno around us so he can dyno his B5 S4 and i can dyno mine at the same time..i will also try and get a heads up race with him to see where i stand..his car made 410AWHP and 457AWTQ..on pump im not expecting a good outcome for me..

Hi Bill, it's been a while and I see that you haven't been resting. Congrats on the new car, it looks very good. I am also very impressed that you did all the install by yourself

I don't know if you already have one, but I have a racelogic performance box I can lend to you if you want to do some performance measurement by yourself. Whenever we have a chance, I would also be very interested in seeing how bad your car will pull on my stage3 v2. If you want we can also do some runs against the other turbo car.

[VaGPuncher]

Hi Bill, it's been a while and I see that you haven't been resting. Congrats on the new car, it looks very good. I am also very impressed that you did all the install by yourself

I don't know if you already have one, but I have a racelogic performance box I can lend to you if you want to do some performance measurement by yourself. Whenever we have a chance, I would also be very interested in seeing how bad your car will pull on my stage3 v2. If you want we can also do some runs against the other turbo car.

Definitely! Maybe in a few weeks on a Saturday I will make the ride to u and we can test the cars out against eachother. Would be nice to get a camera mounted for the runs.

[johnnyR32]

..Made it out to JR @ RSW yesterday and got the revised tune..Car all around feels so much better..Drives smoother and pulls harder..Went from 20lbs of boost to 23-24(according to gauge, haven't logged car..

same here. car feels much better.

[steelcurtain]

Definitely! Maybe in a few weeks on a Saturday I will make the ride to u and we can test the cars out against eachother. Would be nice to get a camera mounted for the runs.

GoPro FTW

same here. car feels much better.

[VaGPuncher]

took the car to work today and played with the launch on the WOTBOX..i dont know why but i get some vicious wheel hop in 1st and 2nd.. got bfi mount and inserts..last car with the same mount setup had no wheel hop...not to happy about it, going to hurt my launches...

[steelcurtain]

i dont know why but i get some vicious wheel hop in 1st and 2nd.. got bfi mount and inserts..last car with the same mount setup had no wheel hop...not to happy about it, going to hurt my launches...

Different suspension and tires?

[VaGPuncher]

Different suspension and tires?

Tires I think are the same(stock). Never really paid attention to the brand of them in all honesty. Suspension I went from fk streetlines to the kw v3's. So there is a possibility. I want to try out the Whiteline anti lift kit to see if it would help me out with traction at all.

You guys that have it got any input for me before I buy?

[Branman]

From what I have heard about the W.A.L.K. It is amazing. I haven't heard any negative reviews so far.

It doesn't make much sense your getting wheel hop. Did you get an extremely aggressive summer tire?

[VaGPuncher]

Only really get the wheel hop when I launch the car. Don't get it when I nail it in gear than the tires just spin. But when I launch I get the wheel hop bad in first and second. Maybe I have to adjust the 2 step higher than 4k? I don't know. Kinda sucks.

[Branman]

Only really get the wheel hop when I launch the car. Don't get it when I nail it in gear than the tires just spin. But when I launch I get the wheel hop bad in first and second. Maybe I have to adjust the 2 step higher than 4k? I don't know. Kinda sucks.

It may not hurt to try. I honestly have never launched my car from the launch control. I will have to give it a shot and see what happens.

[steelcurtain]

I would replace the subframe bolts used on the walk and def torque to spec. Get alignment when done.

[VaGPuncher]

I would replace the subframe bolts used on the walk and def torque to spec. Get alignment when done.

Will do. Sucks though. I just got an alignment the other day!

[HalvieCuw]

whiteline bushings are nice. You also seem more than capable of doing them yourself which is a plus.

[Outie5000]

Tires I think are the same(stock). Never really paid attention to the brand of them in all honesty. Suspension I went from fk streetlines to the kw v3's. So there is a possibility. I want to try out the Whiteline anti lift kit to see if it would help me out with traction at all.

You guys that have it got any input for me before I buy?

You're joking right?

Get some real tires first, they are the ONLY THING that will put your power to the ground, as they are the only thing that touches the ground.

Get some star specs and realize how wrong your life was without them.

[VaGPuncher]

I was talking about traction at the track. And was wondering why the wheel hop on this car and not the other car. I have DR's for the track and I will see how the car launches with them. I'm not really into street racing that's why I don't go crazy replacing tires for street.

[Outie5000]

I was talking about traction at the track. And was wondering why the wheel hop on this car and not the other car. I have DR's for the track and I will see how the car launches with them. I'm not really into street racing that's why I don't go crazy replacing tires for street.

Too much VHT?

Give it a go with the m/t's and see what happens, if you bounce on those then there's something else going on. I would consider removing the front sway bar or if it's adjustable setting it to its lowest setting.

[VaGPuncher]

Have a dyno schedule for next Monday at 10 a.m. We shall see how she does!

[johnnyR32]

Have a dyno schedule for next Monday at 10 a.m. We shall see how she does!

[steelcurtain]

Have a dyno schedule for next Monday at 10 a.m. We shall see how she does!

Sweet.

[VaGPuncher]

Have a dyno schedule for next Monday at 10 a.m. We shall see how she does!

385whp/346wtq

[Outie5000]

385whp/346wtq

What's the curve look like?

[steelcurtain]

385whp/346wtq

Wow, such low torque. What type of correction? I just got my dyno files. I'm posting to my thread.

[VaGPuncher]

Not sure in correction. Nasty dip in the graph and it was surging. Trying to open my graphs from the email but it's not working.

[steelcurtain]

You can only open the graphs using the winpep software. You gotta download it from their website.

[HalvieCuw]

http://www.dynojet.com/downloads/zip/7.5.2_Install_.zip

download and install this

[Arin@APR]

Wow, such low torque. What type of correction? I just got my dyno files. I'm posting to my thread.

Torque can be low from less of an overboost at boost onset which can make something seem like a bigger deal than it really is.

Example.

[Arin@APR]

Get some real tires first, they are the ONLY THING that will put your power to the ground, as they are the only thing that touches the ground.

Tires made a huge difference on my car. Going from a crappy brand to some BFG Sport Comp 2s I went from spinning tires all the time to accelerating w/o the traction control light coming on. At first I thought something was wrong but when I realized I was just accelerating faster than ever before. BTW, I don't track or drag my car. If you want a set of good drag slicks someone here should have some suggestions.

[VaGPuncher]

here is my dyno graph...looks terrible..any input is great.. smoothing factor of 5 and SAE correction..

[HalvieCuw]

here is my dyno graph...looks terrible..any input is great.. smoothing factor of 5 and SAE correction..

If it wasn't that wavy it wouldn't be nearly as bad as it looks. wtq seems to be what the rest of us have seen....but whp would be pretty decent.

[Arin@APR]

here is my dyno graph...looks terrible..any input is great.. smoothing factor of 5 and SAE correction..

Hmm, does it feel like that on the road?

Let's look at some data logs.

www.goapr.com/support/datalogging.php

Shoot me a couple round 5 logs.

[Outie5000]

Can't really tell much just on a dyno chart. We need VE tables and AFR's and some IAT's and MAP to get a better idea of what's going on. Maybe throw in some duty cycle data and we're good.

If I had to guess by looking at the graph alone I would say you're running into fueling issues and you might want to consider getting a higher flow pump (depending on duty cycle - if that's 90-100% then you need more injector) and figuring out how to get more rail pressure with some sort of FPR.

Although it could easily be a heat issue, a component issue (maybe an intake tube is compressing under high load and restricting airflow), or just something funky with the dyno.

[HalvieCuw]

Can't really tell much just on a dyno chart. We need VE tables and AFR's and some IAT's and MAP to get a better idea of what's going on. Maybe throw in some duty cycle data and we're good.

If I had to guess by looking at the graph alone I would say you're running into fueling issues and you might want to consider getting a higher flow pump (depending on duty cycle - if that's 90-100% then you need more injector) and figuring out how to get more rail pressure with some sort of FPR.

Although it could easily be a heat issue, a component issue (maybe an intake tube is compressing under high load and restricting airflow), or just something funky with the dyno.

how would I go about doing this

would also hope that the injectors weren't the issue...not that I think they are

[Outie5000]

how would I go about doing this

would also hope that the injectors weren't the issue...not that I think they are

You would replace the VW pump with a higher output pump like a walboro 255 or something similar to ensure that you can flow enough fuel to your injectors.

Not sure if VW has some crazy bs going on with their fuel pumps on the GTI's. If not, it should be a direct swap, maybe with the addition to a new bracket to hold the new pump and a little bit of creative wiring. If so, then you would probably have to get a pump off a vw car that has a much higher output.

[Arin@APR]

You would replace the VW pump with a higher output pump like a walboro 255 or something similar to ensure that you can flow enough fuel to your injectors.

Not sure if VW has some crazy bs going on with their fuel pumps on the GTI's. If not, it should be a direct swap, maybe with the addition to a new bracket to hold the new pump and a little bit of creative wiring. If so, then you would probably have to get a pump off a vw car that has a much higher output.

The fueling limitation is the high pressure fuel pump that's driven off of the exhaust camshaft. A walboro is a low pressure pump that produces only a few bar of pressure while the High pressure pump delivers up to 200 bar of fuel pressure.

Also, if low pressure fueling is ever an issue, a walboro pump will not drop in. The system is returnless and runs off a PWM controller.

Search for FSI and TSI self study guides. It's pretty crazy stuff! Very different.