475 rwhp PRC Stage 2.5 5.3l Heads, MS3 Camshaft, Fast 90 Results
03-21-2007, 10:30 AM
#1
475 rwhp PRC Stage 2.5 5.3l Heads, MS3 Camshaft, Fast 90 Results We just finished up installing a Fast 90mm intake manifold on John's 00 SS that previously ran a LS6 intake & stock manifold. The car had previously made 458rwhp & 400 tq if memory serves me correctly.
Here's the mods on the car:
PRC Stage 2.5 5.3l Cylinder Heads
Magic Stick 3 Camshaft
64cc chambers (for clearance reasons)
QTP 1 3/4" headers
3.73 Gears
TSP True Duals
We Just Added:
Fast 90mm Intake Manifold
PTM 90mm Throttle Body
SLP 85mm Maf
TSP 85mm Lid
The car now makes basically 14rwhp over what it made with the ls6 intake manifold.
Hopefully I'll be able to get John to take the heads off for some decking & valve reliefs! With some extra compression, intake manifold porting, and a electric water pump I'm hoping to sneak up to 500rwhp.
Here's the mods on the car:
PRC Stage 2.5 5.3l Cylinder Heads
Magic Stick 3 Camshaft
64cc chambers (for clearance reasons)
QTP 1 3/4" headers
3.73 Gears
TSP True Duals
We Just Added:
Fast 90mm Intake Manifold
PTM 90mm Throttle Body
SLP 85mm Maf
TSP 85mm Lid
The car now makes basically 14rwhp over what it made with the ls6 intake manifold.
Hopefully I'll be able to get John to take the heads off for some decking & valve reliefs! With some extra compression, intake manifold porting, and a electric water pump I'm hoping to sneak up to 500rwhp.
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
03-21-2007, 11:01 AM
#2
Nice gains! Good package.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
03-21-2007, 11:20 AM
#4
I am testing a 5.3l configuration that will work with the ms4, I'll keep ya posted Robbie!
Thanks Patrick!
Jason
Texas Speed
Thanks Patrick!
Jason
Texas Speed
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
03-21-2007, 11:52 AM
#5
Launching!
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Originally Posted by Jason 98 TA
I am testing a 5.3l configuration that will work with the ms4, I'll keep ya posted Robbie!
Thanks Patrick!
Jason
Texas Speed
Thanks Patrick!
Jason
Texas Speed
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03-21-2007, 02:49 PM
#8
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aren't you running LS6 heads? what's your SCR? You could also have a look at your tune and see if you can adjust you A/F and timing in the rpm ranges up to, and including, your peak torque value. Jason should be able to give you a better answer but it's a couple of things to consider.
AJ
Edit: I just saw your other thread, I don't know what's goin on with your car, you have the same heads, but already have the EWP, so you should be making even more power then the car that is the subject of this thread, it may just be the difference in dynos, track numbers are what really count any way, so see if it performs well enough there.
AJ
AJ
Edit: I just saw your other thread, I don't know what's goin on with your car, you have the same heads, but already have the EWP, so you should be making even more power then the car that is the subject of this thread, it may just be the difference in dynos, track numbers are what really count any way, so see if it performs well enough there.
AJ
Last edited by ArrestMeRed99Z28; 03-21-2007 at 02:58 PM.
03-21-2007, 11:16 PM
#12
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Originally Posted by RobbieTransAm
Nice numbers! I wish I could run those heads without having to flycut.
ETP 215 heads 62cc and a cometics .045 head gasket + MS3 and you will be plus some!!! You could even go as low as a .040 cometics if you wanted to but I would check PTV clearance. I went with the .045 because I plan on going with a larger shaft mounted roller rocker later on.
Last edited by ttboydfw; 03-21-2007 at 11:28 PM.
03-21-2007, 11:31 PM
#13
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Originally Posted by Jason 98 TA
I am testing a 5.3l configuration that will work with the ms4, I'll keep ya posted Robbie!
Thanks Patrick!
Jason
Texas Speed
Thanks Patrick!
Jason
Texas Speed
Nice numbers Jason! I hope to have the same result with my new set-up.... 
