Cordes Performance Racing (CPR) in Tempe AZ Validates the highest RWHP NA LS7 SBE!
#1
Cordes Performance Racing (CPR) in Tempe AZ Validates the highest RWHP NA LS7 SBE!
And the LS7 Monte SS King still reigns SBE NA LS7 Champ...thanks CPR for the validation opportunity!!! CPR's 698RWHP vs 704RWHP on my buddy Steve Barker's Dynojet in WA State but look at the A/F upstairs, PIG RICH today....if I would of had Joe lean it out a bit to match the 704 A/F I would have EXCEEDED 704 lol, so there you have it after the car has sat for 4+ years moving from WA State to AZ!
Build refresher for those unfamiliar:
To recap the car is a 1988 Monte Carlo SS with a Son of Transzilla T56, RPS BC3 clutch and Moser 4.11 12 bolt. The full motor spec’s:
• 100% stock GM OEM LS7 crate short block with dry sump
• ATI 10% under drive crank pulley
• Two Elite Engineering catch cans
• 2.5 BAR E38 PCM tuning
Build refresher for those unfamiliar:
To recap the car is a 1988 Monte Carlo SS with a Son of Transzilla T56, RPS BC3 clutch and Moser 4.11 12 bolt. The full motor spec’s:
• 100% stock GM OEM LS7 crate short block with dry sump
- 0.040” Cometic MLS head gaskets (12.78 SCR, 9.52 DCR)
- GM Stock ignition coils and plug wires, NKG TR6iX spark plugs gapped at 0.040”
- GM LSX LS7 heads hand ported by Darin Morgan
- 258°/273° @ 0.050”; 112° + 4° LSA, installed 108.5°
- 0.781” intake / 0.747” exhaust
- Isky EZ-roll SR lifters
- Smith Brothers 7/16” pushrods
- Crower shaft mount 1.8 rockers
- C5R Timing chain
- Crower adjustable cam gear
- Nick Williams 102mm throttle body
- Injector Dynamics ID1000 injectors
- GM LS7 MAF cartridge
- 4.5” diameter inlet tubing with K&N conical filter
- 1-7/8” to 2" to 2-1/8" primaries (round port, not D-port!) Triple stepped headers
- 27” primary length with 4” diameter merge collectors
- 4” diameter head pipe with 4” diameter X-pipe
- Full 4” exhaust w/MagnaFlow 12909 3-1/2" mufflers and 3-1/2” tailpipes
• ATI 10% under drive crank pulley
• Two Elite Engineering catch cans
• 2.5 BAR E38 PCM tuning
#2
Kick *** ....... what took you so long to post this thread, Mr. Retired ??!! LOL
wish I could have gone out to the dyno with you, but us working stiff's still gotta make a living LOL
wish I could have gone out to the dyno with you, but us working stiff's still gotta make a living LOL
#5
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John, congrats! how are you liking the BC3?
#6
ModSquad
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Just awesome! Killer results from a no-nonsense build.
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#13
Now....we need to concentrate on the Z06 LOL.
It would be funny to swap the motors for a month and take the Z out to the strip this fall.......... in fact, no.........this need to happen, now that the shop is all done !!! LOL
It would be funny to swap the motors for a month and take the Z out to the strip this fall.......... in fact, no.........this need to happen, now that the shop is all done !!! LOL
#16
Think I'm going to have to make a few more tweaks and then to see about making 725+!!!
Thanks, works well but a little noisy at low RPM
I still need to tune low speed off idle for drivabilty, just never have yet.....it's fine at road speed though with no real tweaking.
Agreed but with the landscaping at the house "in work", pool construction, extended vacation, etc. unfortunately it will be a while. Not to mention that since NO ONE makes a C6Z header/exhaust system to my required specs guess who will have to make one....
Thanks
Thanks
Thanks, works well but a little noisy at low RPM
I still need to tune low speed off idle for drivabilty, just never have yet.....it's fine at road speed though with no real tweaking.
Thanks
Thanks
#17
This confirms that I want an LS7 square body wagon with a T56 for my DD (since a CTS-V M6 wagon is not attainable). Always loved your setup and I totally understand life getting in the way of cars!!