My V6 Story

[sTT eV6]

Cars up and running with the Zircotec coated hot parts back on the car and seats in..




Seats are definately huggier and Julie likes the colour.
Steve

[sTT eV6]

Run out on track.
Was a track virgin.
Short shifting and early braking didn't help.
http://youtu.be/bYiuu7ALikk

http://youtu.be/yi6gygmL5xY
Steve

[sTT eV6]

Managed to fit the new interior door cards in today and also swapped the CF door handles over..


Also got the rear bumper re-wrapped after it was replaced..


Steve

[sTT eV6]

Phase 3 complete.
Armrest in..

Steve

[l88m22vette]

Like the "twin cockpit" feel from the colors, I'm going for something similar

[Kacz07]

Thanks for the PM back! My armrest is perfect height and minimally invasive to the driving experience. Definitely a nice piece.

[sTT eV6]

Bit of track over the weekend..

Steve

[idwurks]

I'm so Jealous that you guys have so many tracks and clubs. There is nothing that nice here in CA for an average car club

[sTT eV6]

When there is a discount on offer sometimes one just has to take advantage.
My GF was pax to let her feel what's been going on.
Steve

[Neb]

Looks awesome Steve. The car is really coming together

[sTT eV6]

Took the TT to ADI over the weekend to join up with other TT peeps and to enjoy a good day.
I pre-booked to go on track but wasn't sure about going out so early but Julie made the effort to get up early.
Julie has never PAXed me on track and it was only my second visit myself.
The track looked damp and greasy, which some cars found out to their detrement.
Running 16 psi and the competition haldex the TT felt planted and grip was helped with the PS3s all round, there was no wheelspin or sliding which others complained of, after the session.
This was not a race, but a chance to push ones car to close to its max limits for the conditions..







I managed to go out for a second session in the afternnon, but as it was raining, i felt the track was becoming unpredictible and came off early.
Steve

[Noah@VerdictMotorsports]

Nice to see some TT's out on the track They do very well in the rain. I love track days in the rain with the TT

[sTT eV6]

Yep, it's nice to drive amongst similar models and it also gives an indication of improved performance of both engine and handling mods that may have been done.
Unfortunately it may start peeps on the modding path as it shows up deficiencies of some cars.
Steve

[jmh2002]

I was happy to see the latest dyno video here: http://www.youtube.com/watch?v=6Fwd5fatylk

But... there are no numbers, or dyno graphs... ?

[sTT eV6]

Going by the dyno graph..there is a little work to do with the boost controller.
Blue run on 14 psi spring only looks nice and smooth.
Once the EBC is introduced the turbo becomes very aggressive as seen on the red and green runs.

There is a new mechatronic unit on order as the installed one is 8 years old and will be getting retired.
Steve

[jmh2002]

Thanks Are those numbers at the wheels, or at the crank?

[sTT eV6]

Numbers are from the fly.
Steve

[jmh2002]

Ignoring the EBC spike, how do you feel about the numbers achieved?
Also, I forgot to ask, I cant quite see in the video, is that an AWD drive dyno? So the numbers are crank/flywheel, but derived from all 4 wheels?

Do you think the car is maybe making significantly less than what may have been expected given the overall specifications?

I thought the car was meant to be making big power, hence the problems with DSG, clutch packs, etc, etc? Did I misunderstand something?

At what rpm do you hit 14psi? Does the turbo then hold that to redline? Was boost and AFR logged?

I see you are revving to 8000rpm, but torque stops being made at 6000rpm anyway.
Is the engine not breathing enough at the top end even with your particular exhaust setup, no cats, screamer pipe, ported and polished head, etc, etc ?

Are you reaching the limits of fueling? You have huge injectors already dont you?



What are your thoughts?

[sTT eV6]

Ignoring the EBC spike, how do you feel about the numbers achieved?
Also, I forgot to ask, I cant quite see in the video, is that an AWD drive dyno? So the numbers are crank/flywheel, but derived from all 4 wheels?

The numbers are ok based on the boost and remember that the wastegate is fully open, so some power is being lost there.
14 psi is half my potential boost and I think I'm achieving 15 BHP per psi over 14 psi.
The runs are done on a 4 wheel dyno.

Do you think the car is maybe making significantly less than what may have been expected given the overall specifications?

Don't forget the wastegate is fully open and some power is being lost.

I thought the car was meant to be making big power, hence the problems with DSG, clutch packs, etc, etc? Did I misunderstand something?

I've got a new mechatronic unit to fit as the old one is 8 years old and the new one can only benefit the build.

At what rpm do you hit 14psi? Does the turbo then hold that to redline? Was boost and AFR logged?

From the graph it's about 3600 rpm..I think and it does hold although other logs weren't recorded.

I see you are revving to 8000rpm, but torque stops being made at 6000rpm anyway.
Is the engine not breathing enough at the top end even with your particular exhaust setup, no cats, screamer pipe, ported and polished head, etc, etc ?

The engine was revved to 8000 to see what was happening, as its the first dyno it's been on.
Maybe charge cooler discharge pipe is being restrictive.

Are you reaching the limits of fueling? You have huge injectors already dont you?

I've got an 044 fitted and coping well with demands. AFRs and lambda are well within limits.
I'm running IDC 1000 injectors, which everyone should run as the tuner is very happy with there spread and control.

Setting up the EBC is on my mind at the mo..ie offset & response



What are your thoughts?

Tried to answer within the quote.
Steve

[jmh2002]

Tried to answer within the quote.
Steve

All points noted, and I also realise you you are currently running a bit less boost than my setup, but in all other respects the specs on your car are in theory higher.

So, I still cant help but think you are down on power regardless, particularly in the 'meat' of the power band between 3000-5000 rpm, the area under the curve seems quite reduced and by comparison the power doesnt really start to catch up until the last 1000rpm or so (and thats with an 8000rpm redline...)

Maybe this is part of the tune to do with trying to preserve the DSG?

I hope in time you can realise more potential from the car

[sTT eV6]

I've recently massaged the throttle map between 3 & 4k rpm to reduce fuelling a little as boost was too aggressive. Until I get the EBC sorted to clip the boost spike I will be running spring.
My power will come once I get the niggles ironed out.
Steve

[sTT eV6]

Over the last 24 hrs ive set my Boost Controller up.
Not an easy job but managed to get the settings somewhere close.
Took a PAX out with me for the experience of feeling what 600+ lb/ft feels like.
The TT has moved on to a new level since the throotle map has been tweaked and the EBC setup to hold 21 psi [possible 26 psi available but my underpants gave way]..

The EBC is now controlling the boost and not just dumping wide open.

I am one happy chappy at the mo.
Steve

[sTT eV6]

EBC is now setup or there abouts..
19psi 5500rpm..

21 psi @ 5500..

24psi @ 5500 rpm..


I just need to get the bottle to document the BHP side of things now..unless it goes on the rollers first.

[jmh2002]

EBC is now setup or there abouts..
19psi 5500rpm..

I just need to get the bottle to document the BHP side of things now..unless it goes on the rollers first.

Put it back on the same dyno. Log boost, and AFR, and maybe timing, injector duty too just to be sure.

I guess you might also want to log some of your DSG stuff as well.

[sTT eV6]

Yeah, I will be doing full logs just to make sure everything is in spec.
Will get my mechatronic fitted first and an 80c stat as the 70c one is too cold and the ECU is over fuelling the cylinders.
My logs above we're done in 6th for torque but I think 4th or 5th will have to be used for the RR.
Steve

[krazyboi]

Wow! Subscribed.



Thanks for finding my thread...which lead me to your thread. F'in amazing!!! I thought I put a lot into my build...you win (or you're definitely winning)! For now, it'll stand as is for performance. I like all of our CF parts and the nice touches here and there. I could only imagine how much power you're putting out.

[sTT eV6]

Wow! Subscribed.



Thanks for finding my thread...which lead me to your thread. F'in amazing!!! I thought I put a lot into my build...you win (or you're definitely winning)! For now, it'll stand as is for performance. I like all of our CF parts and the nice touches here and there. I could only imagine how much power you're putting out.

Cheers.
I read your thread with interest as i wanted to find out about your Uni tune.
Im running Uni here in the UK, but there are no dealers to support me, so i have had to send ECUs to them via post. I was told that they are developing a loaner tool that will allow remote programming but im at week 10 and whispers tell me it may be into the new year before Unitronic will help me. They built their own engine based on my spec and modified files on their engine dyno and posted the ECU back, however, there are some files that need tweaking or re-scaling.
I am very dissapointed with the lack of support as ive paid top dollar for engine and DSG BT files only to find out that they will not help me till their tool is developed and they don't want the ECU posting to them again. I need a tuning house that will support me and not turn their back on me, as i want to be able to praise the peeps involved and not get shafted by them. I post on Unitronics face book often and mention the week number it is now that ive been waiting for.
On a good note, the TT is running well at the mo, but that is a matter of opinion and it could be running better.
Think about your SRI..its holding you back..but then the next bottleneck will be..maybe injectors..
Steve

[krazyboi]

Cheers.
I read your thread with interest as i wanted to find out about your Uni tune.
Im running Uni here in the UK, but there are no dealers to support me, so i have had to send ECUs to them via post. I was told that they are developing a loaner tool that will allow remote programming but im at week 10 and whispers tell me it may be into the new year before Unitronic will help me. They built their own engine based on my spec and modified files on their engine dyno and posted the ECU back, however, there are some files that need tweaking or re-scaling.
I am very dissapointed with the lack of support as ive paid top dollar for engine and DSG BT files only to find out that they will not help me till their tool is developed and they don't want the ECU posting to them again. I need a tuning house that will support me and not turn their back on me, as i want to be able to praise the peeps involved and not get shafted by them. I post on Unitronics face book often and mention the week number it is now that ive been waiting for.
On a good note, the TT is running well at the mo, but that is a matter of opinion and it could be running better.
Think about your SRI..its holding you back..but then the next bottleneck will be..maybe injectors..
Steve

As you may have read, Uni couldn't ever get a solid running tune for me. Reading that you have a Uni tune that is running pretty solid, and you're located in the UK, pisses me off royally. They were working on my tune since late 2008. Come early 2011, they still did not have a working tune for me. My shop did all the necessary hardware adjustments as requested from Uni to try and get a working tune. It wasn't until I decided we needed to switch tuners b/c 2.5 years was just ridiculous. And now, you see, you're having issues as well with them.

I ended up going to UM and Jeff had me at a working tune within 10 working hours. Some fine tuning here and there, and my car was running strong and smooth. Had to bring the car into the shop for some other stuff like bad valve stem seals (probably for sitting years w/o running), new exhaust, etc, but since then it's been running like a champ.

I may consider the SRI or LRI next year. I believe I have newer injectors already (IIRC 1000, but would have to ask/confirm). Then what, cams, new clutch plates? The value of aftermarket parts is already starting to surpass the value of the car.

[sTT eV6]

Glad Jeff got you going, i may have to go to UM in the UK if i need future help ie DSG clamping increases, if i have any issues.
The spiral of upgrades can become addictive as you well know..its knowing when enough is enough.
The ceiling for me is if mods cost more than $40 per bhp, but then how do you stop with the visual aids and other non power generating kit..its a slippery road.
Steve

[sTT eV6]

Janice has gone into the shop for a new mechatronic unit to be fitted and uprated software for the DSG to hold the torque via the Unitronic remote programming facility. Hopefully picking her up on Tuesday.
Managed to do a few pulls before she went in and got to 988nm at 24.5 psi 5500rpm.
Steve

[idwurks]

Nice!

I love the performance updates - but comon - I need more pics =)

She's a looker too!

[sTT eV6]

Not many recent pics at the mo and she has gone into the shop for some surgery, however, she has changed over the last 2 years.
Here she is at the pod just about to go down the strip..


A few days ago in Scotland, where peeps are starting to get ready for the winter and the importance of getting her warm..



Steve

[sTT eV6]

Maybe just a spike, but made me smile..
26psi..

Steve

[20v master]

When are you going to put it on some real rollers and verify these numbers?

[sTT eV6]

When are you going to put it on some real rollers and verify these numbers?

Once Unitronic do some final files to maximise clamping pressures above 5500rpm
Steve