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05-26-2008, 09:08 PM
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#11 |
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Daddy x4 ...we're done
Join Date: Dec 2004
Location: Oxford, AL
Posts: 11,551
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Lee's Cobra made 538rwhp with all of the stock fuel lines and rails, 255lph pump, and 42# injectors (maxed out). Although it was a 5-speed car, it also was blown which means it was actually supporting a lot more horsepower considering the drag from the blower.
However, that may be near the limit of the rails, and you could be pushing enough past that to see some issues. 
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-Brian '86 Mustang GT Convertible '88 Mustang LX coupe '11 Odyssey TE '21 Insight Touring Last edited by Italian LX; 05-26-2008 at 09:12 PM. |
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05-26-2008, 09:41 PM
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#12 |
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Bet I red light B4U
Join Date: Aug 2005
Location: ANNISTON, AL
Posts: 975
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Last time at the Dyno it put down 548rwhp.
Do you really think -10 is needed?? I just think that a -6 inlet to the fuel pump to a -10 is a big jump.
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89 gt 2.3 stroked holley head with n12n port high flow intake with great big fart can skunk 2 seat belts with kool glow water squirters and new light up shift knob basically everything from wal-mart art carr C4 10.53@127.3 w/ 1.53 60' 89 gt vert 347 eldebrock heads and intake AOD w/3000 stall unknown with 5spd went 12.7 on steet tires 04 Mach1 automatic flowmaster K+N drop in 13.9 |
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05-27-2008, 04:23 AM
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#13 |
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Dayuuuuuuum!!!!!
Join Date: Dec 2004
Location: Dallas GA
Posts: 2,933
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Surely you plan on more power later down the road.
If you are going to upgrade why not do it one last time.
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86 Mustang Gt......Mods piling up in my garage.
07 F350 dooly.....Tows my fifth wheel |
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05-27-2008, 07:43 AM
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#14 |
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Super Moderator
Join Date: Dec 2004
Posts: 6,313
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Brian's right. -10 won't hurt, so might as well do it. -8 is plenty though (if you happen to already have a roll of it or something like that)
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" If you can't explain it simply, you don't understand it well enough. " - Albert Einstein |
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05-27-2008, 11:06 AM
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#15 | |
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Daddy x4 ...we're done
Join Date: Dec 2004
Location: Oxford, AL
Posts: 11,551
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Quote:
What RPM did you make your dyno pulls to? Can you post the graph or send me the Dyno file?
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-Brian '86 Mustang GT Convertible '88 Mustang LX coupe '11 Odyssey TE '21 Insight Touring |
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05-27-2008, 03:22 PM
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3v's are slow
Join Date: Dec 2004
Location: Here and There
Posts: 17,152
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Quote:
Marc's car has gremlins in it anyhow. I bet if he took that motor out and put it in another car it wouldn't have ANY issues based off the issues he has had with it in the GT vs when he threw the whole drivetrain in the vert and no tune. But yeah his car putting that kind of power down through a C-4 means he is making way more than I did with the procharger at the flywheel. Also, he turns his motor a lot higher rpm than I ever did mine.
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP  2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
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05-27-2008, 03:36 PM
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#17 |
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Super Moderator
Join Date: Dec 2004
Posts: 6,313
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The fluid coupling in the automatic trans does eat up some horsepower, but a C4 can be quite efficient with a good converter in front of it... much more so than an AOD or a TH400. Probably no more than 5% difference from a stickshift.
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" If you can't explain it simply, you don't understand it well enough. " - Albert Einstein |
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