PRC 5.3l Stage 2.5 Heads & MS4 Dyno Results
#1
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2001 Trans Am
Stock Bottom End
PRC 5.3l Stage 2.5 Cylinder Heads
MS4 Camshaft
SLP Long Tubes
GMMG Catback
ASP Underdrive Pulley
Stock LS6 Intake
Stock MAF
SLP Lid
10 Bolt Rear
Just wait until this thing gets a FAST INTAKE & 90mm combo!!
Stock Bottom End
PRC 5.3l Stage 2.5 Cylinder Heads
MS4 Camshaft
SLP Long Tubes
GMMG Catback
ASP Underdrive Pulley
Stock LS6 Intake
Stock MAF
SLP Lid
10 Bolt Rear
Just wait until this thing gets a FAST INTAKE & 90mm combo!!
![](http://www.precisionracecomponents.com/somta.jpg)
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#10
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Originally Posted by venom ws7
ATXCAMAROGUY I think flycutting is necessary those are 63cc if remember what Jason told me but with MS3 no flycutting needed.
But im sure Jon will correct me if im wrong.
But im sure Jon will correct me if im wrong.
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#18
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Were the heads milled anymore or were they the standard 63cc chambers?
DCR only shows to be about 8.1 with a .040 gasket and if I do the same heads/gasket with my Torquer 2 I'll be at 8.3 and I am worried about getting knock with our crappy 91 octane. I can't run a mix of race fuel, since this is a Daily Driver.
Thanks for the info, James.
DCR only shows to be about 8.1 with a .040 gasket and if I do the same heads/gasket with my Torquer 2 I'll be at 8.3 and I am worried about getting knock with our crappy 91 octane. I can't run a mix of race fuel, since this is a Daily Driver.
Thanks for the info, James.
Last edited by Dr. Jeckel; 04-25-2007 at 07:53 AM.
#19
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Originally Posted by ATXCAMAROGUY
Jon, have you guys done a back to back comparison w/ the stage 2.5 5.3 heads vs. the stage 2.5 ls6 heads, that would be pretty interesting to see.
I second that. then swap cams and see what works better for which. tqrV3 vs MS4.
get working.
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Originally Posted by 2001 Pewter WS6
What are the SAE corrected numbers???
That Torque curve is sick, he's going to have power everywhere in the powerband. Sick, sick, sick !