Gonna get the car dynoed in the next couple days.Need some imput.

Cobra351

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Mar 10, 2004
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Ok there is a shop here in Youngstown, Ohio that has a new Mustang brand dyno. I can get an hour on it with the wideband o2 setup for 150.00.I thought it might be a little expensive, but oh well. I have a Diablo chip that came with the car when I bought it. I removed the chip, because i could not run above 10* of timing without detonation.Without the chip I could run around 13* before starting to notice pinging. Car seemed to run better without chip, at least more torque. :shrug: So my questions are how would you setup for a dyno tune? Should i install the chip and back down the timing a bit to start, or run without the chip first and then try to put it in after a pull or two? How much more HP can that chip really make? This is in my 94 cobra, here are my mods:351W roller Trick flow cam (stage1). GT40 lower and a downs box upper, 30LB injectors, Edelbrock heads, 1.6 roller rockers, 80mm mass air, 70mm TB. I believe my compression is around 10 or 10 1/2 to 1. because I run 94 octane and can still only run around 13* of timing. What do you think I can expect for HP and Torque? I know it will be a bit lower on the Mustang Dyno compared to a Dynojet but about how much difference is there? Thanks.....Phil. Sorry for such long posts. Also I have an adjustable F/P regulator. :D
 
What made you go with a TFS stage I cam?

This guy (289cobrajet) on the corral will make over 400HP to the wheels with his 351W. Went 12.10 at 117.

My combo is basic, Balanced lowerend, forged crank, sportman I beam rods, SRP pistons 10 or 10.2:1 CR, Comp Cams XE274, Edelbrock victor jr stock out of the box heads, TFS R intake, 75 MM elbow and Throttle body, Pro M race aluminum 77mm MAF, scorpion Roller Rockers 1.6 ratio, A9L computer(stock, going to Larocca's for tune soon), AFM 4" power pipe, Kooks full length 1 3/4" headers, 3" X-pipe, 5 speed, 3:73 gears, last fall I dyno at 381 RWHP before the Header, Maf, Injector,and TB upgrades so who knows where I am now, my track weight is just shy of 3700 lbs...
 
Everything except the edelbrock heads. I had some well ported GT40's on there when the chip was in. Thanks for the reply. I went with the stage 1,basically for cost reasons and that I originally was going to run Trick flow heads.I was worried about P/V clearances.