Wow! You've got to take this other Powell for a ride if I'm ever over that way.

I don't think Chris's old setup were GT35s. I think he had some kind of K24/ GT30 hybrid concoction.

I know im just asking a tech Q

Ahhh, gotcha

Congrats Chris Great numbers that your car is making. Thank God i am 3000 Miles away i dont want to pull up next to you at the lights or the Highway!

I'll have to let Justin or Zohair explain the flow, etc. difference between the 35R and the 5857. I do know that it is suppose to be in between a 3076 and a 3582. Its at full spool about 10mph slower than my old 3076/K24's... BUT at the same speed as my GT3076/K24s were at full spool, the new turbos are still 100+rwhp above the old turbos.

GT3076/K24's (666rwhp)
http://pics.skinnywhiteduderacing.com/700/dynosnew.jpg

PT5857s (843rwhp)
http://pics.skinnywhiteduderacing.com/700/DynoSpeed.jpg

As far as the bolt on part. The turbos use a T3 Flange so a custom header needs to be made to fit these. The Boost Logic kits includes everything to bolt on any of the PT series turbos.

Why does the curve "dip" like that? I have also seen others that have this trait ( Corey?) Usually when a curve dips, it tends to continue dipping. You start making power, then the power drops off and then comes back on? Is this tire spin on the dyno? Is this a trait of the bigger turbos? Other system components?

Mike that was going to be fixed, but my boost controller kinda took a dive on us. Tony was going to adjust some timing there, because it is really low in those areas. We were going to leave the top end alone, but we wanted to bring those numbers back up, because I hate that little dip. We'll get it worked out soon enough though.

those are absolutely awesome numbers... sounds like you have a monster of a car... just be careful as that power level takes some getting used to... ENJOY!!

I think that will be a noticable fix. It is actually right in the meaty part of a 60-130 run...
Your dyno is in MPH but it looks like that dip is about 5500-7000rpm's?.

I know the ansewer but i cant post it damit!

its 2 things that's all i can say, I am going to test it out in the next few days and tell you if it fixed the issue.

Chris, what clutch are you guys using?

Art, We are using the Tilton triple carbon disk setup.

Got it thanks.

Thanks for the kind words Chris. I think everyone at the shop put their pride into your project and the results speak for themselves. A good few of my friends who were not considering purchasing and modifying a Porsche have changed their sentiments towards the car.

The GT35R turbos are MUCH bigger than Chris's 5857s. Please feel free to email me with any questions regarding the products we make for the Porsche. We will be gone to SEMA this week so please allow a bit extra time for email response at the present time.