Jim Green's 90q 20vt - 636whp 07k

audifreakjim · Post by **audifreakjim** » Mon Aug 14, 2006 12:50 pm

Mcstiff wrote:Let me know when its going in, I'll be happy to lend a hand.

Thanks for the offer, I'll probably end up doing it down in the Springs unless Preston feels like getting his new garage floor dirty one weekend :wink:

pro_mtn_biker · Post by **pro_mtn_biker** » Mon Aug 14, 2006 1:55 pm

My new garage is destined to be covered in audi grime. It already smells like a rich 80tq thats been idling in there a lot. Its always open for use. I live a bit closer to you now too.

audifreakjim · Post by **audifreakjim** » Mon Aug 14, 2006 4:26 pm

Ohh boy. Hey, sorry I never made it to your tent, I swear I looked all day and never found it. It must have been to the north of the beer garden? That's about the only place I didn't go on Sat.

pro_mtn_biker · Post by **pro_mtn_biker** » Tue Aug 15, 2006 6:04 am

Yah, they hid us away behind most of the nostalgic car club. No worries though, we really need to get it out to an autox one of these days.

audifreakjim · Post by **audifreakjim** » Tue Aug 15, 2006 7:12 am

How about the SCCA event on the 26th of this month?

pro_mtn_biker · Post by **pro_mtn_biker** » Tue Aug 15, 2006 8:40 am

Yah, thinking about it. Car is headed to the shifter track tomorrow so if all goes well maybe we'll try to make it. Gotta get the motec logging and a whole list of over jobs.

audifreakjim · Post by **audifreakjim** » Thu Aug 17, 2006 4:53 pm

So I've been toying with the IIc closed loop boost control for the past couple of days, and finally got it figured out today. I've been using Saab APC valves since I had a couple laying around. The reason it took me a while is because I had to much preload on the WG spring and it was making hard for the valve to control.

Anyways, this kicks ass! I have it programmed so it stays within a few psi of the target, so I still have a little fine tuning to do, but so far it works very well for keeping the turbo from surging. :woowoo: I can't wait to show you guys this power curve on a dyno plot. :-D

PRA4WX · Post by **PRA4WX** » Thu Aug 17, 2006 5:27 pm

audifreakjim wrote:So I've been toying with the IIc closed loop boost control for the past couple of days, and finally got it figured out today. I've been using Saab APC valves since I had a couple laying around. The reason it took me a while is because I had to much preload on the WG spring and it was making hard for the valve to control.

Anyways, this kicks ass! I have it programmed so it stays within a few psi of the target, so I still have a little fine tuning to do, but so far it works very well for keeping the turbo from surging. :woowoo: I can't wait to show you guys this power curve on a dyno plot. :-D

:woowoo: hurry hurry!!!!

pro_mtn_biker · Post by **pro_mtn_biker** » Fri Aug 18, 2006 5:46 am

I think you need to blow up your tranny so you can come up my way, put the new one in, and then take me for a ride!

audifreakjim · Post by **audifreakjim** » Fri Aug 18, 2006 6:22 am

Yea, it's taking some getting used to, I had to try and control the surge with the throttle before, now it's just WOT and you get an extra jolt of power at ~5500 rpms. I'm taking her up to the hills tomorrow so I should be able to get the settings nailed down on the way up.

SEStone · Post by **SEStone** » Fri Aug 18, 2006 6:58 am

:woowoo: :woowoo: :woowoo: :woowoo: :woowoo: :woowoo:

Sam

Mcstiff · Post by **Mcstiff** » Fri Aug 18, 2006 10:49 am

audifreakjim wrote:I'm taking her up to the hills tomorrow so I should be able to get the settings nailed down on the way up.

Should be fun in the rain.

audifreakjim · Post by **audifreakjim** » Sun Aug 20, 2006 5:13 pm

OMFG, what a weekend. The drive up to Keystone was one of the best I've ever had, and the Azenis 615's are great in the rain BTW

We then rented downhill bikes and hit the trails, they do an amazing job up there, Paid in Full is a freaken sick trail.

Today I finished the side exit exhaust for good, I've gone through what feels like 20 revisions and have settled on a hollow cat with a pipe through it, to an 18" Dynomax bullet muffler, to a Borla XR-1 to Dynomax Ultraflow muffler, and then out the side. So three strait through mufflers gets the noise right where I want it.

The closed loop boost control is just retarded. I did a 4th gear pull up I-70 from 4000 rpms to 5600 rpms at WOT without a hint of surge. The turbo also spools faster now, between that and the new exhaust, it feels like a different car now in that it's much more street friendly.

Here's a few pics offf the Zeitronix data logger showing the boost curve in 4th. I had a target of 280 kPA, but the turbo could not get there at 10,000 ft. and maxed out at 272 kPa

Attachment ( 5409 ) : 1.jpg

Attachment ( 5408 ) : 2.jpg

Attachment ( 5407 ) : 3.jpg

audifreakjim · Post by **audifreakjim** » Sun Aug 20, 2006 5:16 pm

LOL, notice the dip in EGT's when on boost. I love E85.

JShadzi · Post by **JShadzi** » Sun Aug 20, 2006 8:39 pm

Awesome, looks great man 8)

SEStone · Post by **SEStone** » Sun Aug 20, 2006 8:45 pm

26psi at 10000ft? I wish we coulda had that when we were doing our mountaineering out there. Northstar FTL!

Sam

Matt · Post by **Matt** » Sun Aug 20, 2006 9:05 pm

Sorry, I missed the whole E85 bidness... Did you convert to straight E85 or just decided to put some in???

audifreakjim · Post by **audifreakjim** » Mon Aug 21, 2006 5:07 am

Strait E85, here's one of the threads on it.
http://www.motorgeek.com/phpBB2/viewtop ... hlight=e85

Mcstiff · Post by **Mcstiff** » Mon Aug 21, 2006 8:50 am

audifreakjim wrote:Today I finished the side exit exhaust for good, I've gone through what feels like 20 revisions and have settled on a hollow cat with a pipe through it, to an 18" Dynomax bullet muffler, to a Borla XR-1 to Dynomax Ultraflow muffler, and then out the side. So three strait through mufflers gets the noise right where I want it.

Word on the street is no more CO emission testing starting sometime next year. I guess a "cat" is a federal thing though.

So how much rain did you see? I have wondered about the 615's in it, picked the hankooks because of rain concerns, any puddles/hydroplaning?

Derracuda · Post by **Derracuda** » Mon Aug 21, 2006 9:13 am

i already told everyone the 615's rule....

audifreakjim · Post by **audifreakjim** » Mon Aug 21, 2006 9:25 am

I hit a stream going across the road going about 80 that I straited the wheels out for just incase, the car bobbled a little, but other than that it was great in pretty steady rain.

Mcstiff · Post by **Mcstiff** » Mon Aug 21, 2006 10:43 am

good to know, are they 215, 25,or 45's?

audifreakjim · Post by **audifreakjim** » Mon Aug 21, 2006 11:01 am

215's

Audilard · Post by **Audilard** » Mon Aug 21, 2006 11:07 am

derracuda wrote:i already told everyone the 615's rule....

Yeah, but you don't have a very good poker face. :wink:

JShadzi · Post by **JShadzi** » Mon Aug 21, 2006 11:11 am

derracuda wrote:i already told everyone the 615's rule....

Yea, and everyone needs SO much convincing