5.0 gurus check this out..

Tune would help some. Auto or 5spd? What gears? What tires? Any other suspension or chassis mods?

What is the power range of that cam?

Can he drive?

Robert covered a bunch of it.

What are his 60' times? I'd get it on a roller and watch the a/f ratio and have it tuned.

its a 5 speed and 4.10 gears. he can drive. i drove it and it felt gutless.. even if he couldnt drive he should still be around 110-115 mph at the quarter... btw that was on et streets.

the cam specs are:
224 224 .546 .555 110 lobe seperation.

Those 4.10's are actually blowing thru his power range too soon.

What's he launching like?

FWIW, I can get my 92 GT to run a better number than that with a higher MPH.

Stock long block with 207,000 miles, electric fan, CAI, 76mm maf, 65mm TB, professional products intake, BBK shorties, offroad h, flows, and 3.73 gears.

I launch off the rev limiter, and never lift my right foot.

Get it tuned.

Put a carb on it and be done.

ill put money on it that its lean

hell my 82 gt with just an e-cam ran 12.41 at 110 mph. im thinking its the tune too. i can drive and to me, the car pulls like a stock 5.0.


and i told him to yank the motor and sell it and throw a carbed ls1 with a t56 in LOL.

I've been 7.50's with same shit, for lack of bieng overly obvious - something's not right.

I dyno'd my street car a while back with the engine it came with - it put down a whopping 267RWHP with a very similar setup. Obviously not right. Due to unforseen circumstances, I had to pull the intake and cam - only to find that it was installed 2 teeth off. I have no idea how it even ran, but it did. Simply installing the cam at 0 yielded a 6MPH increase, and a half second.

I don't think a "tune" is the problem, there's been a LOT faster with no need for a tune. It may not be "optimum" without a tune, but you are talking 10HP, maybe 20HP.. not 120 like it seems to be you are missing.

Paul - I'd tend to believe that if it were that lean, it would have already popped on the first full quarter pass.

It obviously has a major issue. You have to take it back to basics to figure it out. You got to do the obvious stuff like make sure all the injectors work, make sure the plugs are firing, check timing advance. When a car is way off like that it is something fundamental that is wrong.

102mph? Good Lord, there is something WAY wrong with that engine. Do a compression test and let us know the results. That will tell a lot.

motor only has a couple thousand miles on it.. its a forged 306 with forged pistons\rods\crank and balanced. its very fresh. doesnt smoke, use oil, etc. the one BIG question mark is that the ed curtis cam is supposed to be advanced 4 degrees, but ed said that the advance is grinded into the cam? we're getting more confused every time we think about it.

blk87coupe said:

motor only has a couple thousand miles on it.. its a forged 306 with forged pistons\rods\crank and balanced. its very fresh. doesnt smoke, use oil, etc. the one BIG question mark is that the ed curtis cam is supposed to be advanced 4 degrees, but ed said that the advance is grinded into the cam? we're getting more confused every time we think about it.

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It needs to be re-degreed, that's 99.99% your problem I'd bet.

Great start. I'm anxious to see what the culpret is.

Keep us updated.

if the timing is far enough off, it will run like shit.

24's are too small for one. redegee the cam. His fuel with that small of inj should be around fifty give or take 10lbs. More so give than anything. Pull the plugs and I bet thay are clean and white as can be. also might want a taller tire if he not using a 28

2tonecpe said:

24's are too small for one. redegee the cam. His fuel with that small of inj should be around fifty give or take 10lbs. More so give than anything. Pull the plugs and I bet thay are clean and white as can be. also might want a taller tire if he not using a 28

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Please confine your stupidity to the racing forum.

AL P said:

Please confine your stupidity to the racing forum.

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I have had and built more simple combo fast cars than you could look at so please go back to the back porch with all the other bitches. Everything I have listed is pretty basic stuff.

2tonecpe said:

24's are too small for one. redegee the cam. His fuel with that small of inj should be around fifty give or take 10lbs. More so give than anything. Pull the plugs and I bet thay are clean and white as can be. also might want a taller tire if he not using a 28

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2tonecpe said:

I have had and built more simple combo fast cars than you could look at so please go back to the back porch with all the other bitches. Everything I have listed is pretty basic stuff.

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Those 24# injectors are not too small. The cam should be checked. The fuel pressure would not need to be that high. In doing so, the computer will turn down the injector pulse rate, thus leaning it out even worse. A tune will do far better, as it will work with the stock fuel pressure, and work very well with driveability. High fuel pressure will not help driveability, as it will be dumping fuel at idle and low rpm. The plugs very well could look white, as the O2 sensors have no clue what's happening other than it just isn't right. 28" tire would be the tire for those gears.

So, you were close. It certainly was on par with how things were done for 5.0's back in the day before folks really caught on to what they were doing.