413 ci Iron Block, PTK TT, Dyno numbers 670/690

msko7 · 11-04-2009, 01:07 AM

i just had my car tuned at Rev Xtreme in Bradenton,FL about a week ago.
i have a 413 ci Iron block fully forged with a ptk style twin turbo system and two t-64 MP turbos. we tuned it at 12 PSI and the car made 670 rwhp and 690 rwtq on pump gas with no meth and at 90 degrees florida weather. i was kinda expecting more power at this level of boost. so your fedback and experiance would be appreciated.

the car has a 3 bar tune on it. im going to take it again to my tuner and going to push it to 18 psi and see what it does.

also, how much benifit would i get if i added a meth kit ?

thanks

venomws7 · 11-04-2009, 01:47 AM

What transmission?? What H/C??

I'm not an expert but I think your turbos are small for those CI
But I agree with I thought the car will be over 700rwhp even with 12psi.

msko7 · 11-04-2009, 02:28 AM

Quote:

Originally Posted by venomws7

What transmission?? What H/C??

I'm not an expert but I think your turbos are small for those CI
But I agree with I thought the car will be over 700rwhp even with 12psi.

it has a stage 3 ported LS6 heads. they flow 320 at 0.600" lift. and a comp cam turbo grinded cam . 0.601" lift. 113 LSA . 234/236 (not exact sure about the durations, but should be very close)

transmission: hardened/ Cryo treated gears and shafts, carbon fiber blocking rings, fork pads, billet keys, new syncros, seals, etc.

venomws7 · 11-06-2009, 03:38 AM

Quote:

Originally Posted by msko7

it has a stage 3 ported LS6 heads. they flow 320 at 0.600" lift. and a comp cam turbo grinded cam . 0.601" lift. 113 LSA . 234/236 (not exact sure about the durations, but should be very close)

transmission: hardened/ Cryo treated gears and shafts, carbon fiber blocking rings, fork pads, billet keys, new syncros, seals, etc.

I thought turbo cars needed higher LSA??

What is the compression of the engine??

9secondflat · 11-06-2009, 06:49 AM

i ran 11.34 in my syclone with stock cam...ever see the specs on a gmc syclone cam? lift 357 390 duration 171/195 talk about a baby...when you have fi anthing works well..

Quote:

Originally Posted by venomws7

I thought turbo cars needed higher LSA??

What is the compression of the engine??

msko7 · 11-06-2009, 06:49 PM

actually 113 - 114 is optimal for a daily driver FI motor. CR is 8.85:1. the car drives very normal until u get on it and it breaks the tires loose at 110 mph

venomws7 · 11-08-2009, 06:08 AM

Quote:

Originally Posted by 9secondflat

i ran 11.34 in my syclone with stock cam...ever see the specs on a gmc syclone cam? lift 357 390 duration 171/195 talk about a baby...when you have fi anthing works well..

I know but still the stock cam is 116 or 117lsa