PRC 5.3l Stage 2.5 Heads & MS4 Dyno Results
#22
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Jason
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Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
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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
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Damn Jon, the more and more I see about these heads, the more and more I want them! I need to give you guys a call about the little technical things before I order them.
I would love to see FAST numbers, seeing that I have a ported FAST 90/90.
I would love to see FAST numbers, seeing that I have a ported FAST 90/90.
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The only change we made to the heads was milling them .030" down to a 59cc chamber bringing the compression ratio up to 11.25:1. Yes the numbers are SAE. Hopefully we can get some FAST numbers soon.
Thanks,
Brian
Thanks,
Brian
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01 NBM Z28- A4 w/3.23s, TSP Black Lid, Hooker Catback, Pacesetter Headers w/ORY, ASP Pulley, Ported Throttle Body, TSP Torq. v3(231/234) Camshaft, TCI 4400, PRC Stg 1 Heads
Texas Speed & Performance
www.texas-speed.com
(806) 866-0734
01 NBM Z28- A4 w/3.23s, TSP Black Lid, Hooker Catback, Pacesetter Headers w/ORY, ASP Pulley, Ported Throttle Body, TSP Torq. v3(231/234) Camshaft, TCI 4400, PRC Stg 1 Heads
Texas Speed & Performance
www.texas-speed.com
(806) 866-0734
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He's running a .040" Cometic gasket.
Brian
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01 NBM Z28- A4 w/3.23s, TSP Black Lid, Hooker Catback, Pacesetter Headers w/ORY, ASP Pulley, Ported Throttle Body, TSP Torq. v3(231/234) Camshaft, TCI 4400, PRC Stg 1 Heads
Texas Speed & Performance
www.texas-speed.com
(806) 866-0734
01 NBM Z28- A4 w/3.23s, TSP Black Lid, Hooker Catback, Pacesetter Headers w/ORY, ASP Pulley, Ported Throttle Body, TSP Torq. v3(231/234) Camshaft, TCI 4400, PRC Stg 1 Heads
Texas Speed & Performance
www.texas-speed.com
(806) 866-0734
#30
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Oooh, that's a pretty graph
I guess I need to get off my posterior and install those 59cc TSP 2.5 5.3's & .040 Cometic's which have been sitting by the wall for two months.
I've got a slightly different exhaust and forged pistons with valve reliefs but other than that a very similar combo waiting... how would a 227/235 110+2 .650/.650 LSK cam alter that graph? The cam is sitting in the same box as the heads
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I've got a slightly different exhaust and forged pistons with valve reliefs but other than that a very similar combo waiting... how would a 227/235 110+2 .650/.650 LSK cam alter that graph? The cam is sitting in the same box as the heads
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I did the calculations using the .040 gasket and 59cc chambers and it came out to be like 11.8...are the valve reliefs a couple cc's per piston to get it back down to around 11.25?
Not trying to be nit-picky, just trying to get some reference with regurad to safe compression and octane for our area.
Thanks Brian, I appreciate the info.
James
Not trying to be nit-picky, just trying to get some reference with regurad to safe compression and octane for our area.
Thanks Brian, I appreciate the info.
James
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how in gods name do I have the same heads...the FAST 9090, the EWP and all the other goodies, and an MS3 and I am not making anywhere near what that car made?? what the hell am I missing?? Is the MS4 that much of an improvement?? I just don't understand how it can make those numbers being that the specs of the MS4 arent That much different than the MS3...
what in the hell???
anyone?
what in the hell???
anyone?
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Originally Posted by Brian @ Texas Speed & Performance
The only change we made to the heads was milling them .030" down to a 59cc chamber bringing the compression ratio up to 11.25:1. Yes the numbers are SAE. Hopefully we can get some FAST numbers soon.
Thanks,
Brian
Thanks,
Brian
well there is a large detail that wasn't initially disclosed.......
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Originally Posted by erikthegoalie
how in gods name do I have the same heads...the FAST 9090, the EWP and all the other goodies, and an MS3 and I am not making anywhere near what that car made?? what the hell am I missing?? Is the MS4 that much of an improvement?? I just don't understand how it can make those numbers being that the specs of the MS4 arent That much different than the MS3...
what in the hell???
anyone?
what in the hell???
anyone?
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no doubt no doubt....trust me I tried and then the 10 bolt went....KABOOM hahah
I am not dissapointed as much as I am bewildered....TSP produces great stuff..its just nuts!
Hopefully I can get a 9" in there soon!
I am not dissapointed as much as I am bewildered....TSP produces great stuff..its just nuts!
Hopefully I can get a 9" in there soon!
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Originally Posted by Brian @ Texas Speed & Performance
The only change we made to the heads was milling them .030" down to a 59cc chamber bringing the compression ratio up to 11.25:1. Yes the numbers are SAE. Hopefully we can get some FAST numbers soon.
Thanks,
Brian
Thanks,
Brian
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Originally Posted by erikthegoalie
how in gods name do I have the same heads...the FAST 9090, the EWP and all the other goodies, and an MS3 and I am not making anywhere near what that car made?? what the hell am I missing?? Is the MS4 that much of an improvement?? I just don't understand how it can make those numbers being that the specs of the MS4 arent That much different than the MS3...
what in the hell???
anyone?
what in the hell???
anyone?
Hey man don't get hung up over dyno numbers. Your car is making a lot of power for a heads and cam car. Just remember every car dynos differently and dyno numbers don't matter that much.