Dyno numbers are in on the 91gt 347 stroker.

5.0Droptop · Apr 23, 2006

If anyone cares.

This is a Naturally aspirated 347 all mods are in the link to My garage.

Dyno Jet numbers were 340hp 410tq at the wheels. 12.5-12.8 a/f-ratio
HP peaked at 4550 rpm Tq peaked at 3675 rpm.

it had the potential to get 350-360 with more lean conditions and more timing but I wanted it safe safe safe.

Roland69 · Apr 23, 2006

that's awsome how much did the engine cost to build. And did you do it your self I want to build something like that myself and wanted an idea of $$$

5.0Droptop · Apr 23, 2006

Didnt cost me much. I traded for the car but the car has around 14k in it with all the mods.

Grn92LX · Apr 23, 2006

I'd like to see the graph, the power peak is VERY low.

Lean it out and ditch the 1" spacer. What was the timing at? Around 18* initial will be the sweet spot.

You'd be flying with a real cam.

5.0Droptop · Apr 23, 2006

The graph is smooth and after it peaks it stays steady.

I cant ditch the spacer as it is required for the intake to clear.

I am very pleased with the car as it is. I wont be making anymore changes. It dynoed more than I expected so I am happy!

Tonys96Cobra · Apr 23, 2006

looks good to me. Sure you could pick up some more, but Im sure thats enough to shred som tires, considering its almost double the factory rwhp.

5.0Droptop · Apr 23, 2006

Its a blast to drive. It looks decent and sounds awesome. Im very pleased with the results. I am not going to try to eek out every ounce of power it has because it already has more than enuough for a street car LOL.
Not to mention that its probably around 400 hp at the crank and its a stock block.

DMAN302 · Apr 23, 2006

Shawn that is excellent..I'm with you on the safe tune side of things. That's lots of street power and no doubt a blast to pilot.!!!!

5.0Droptop · Apr 23, 2006

Thanks D.

SoldMySS4a5.0 · Apr 23, 2006

You can get 360 out of it easily. I have seen up to 380 on a stock block. 475 is the maximum you should go with a stock block. With the car running 12.8 A/f, Don't hesiate to shoot 100- 125 of NOS. You will run 10's safely. You should hit 11's now if traction isn't an issue. My set up is in the garage now. I can't wait to get it built in the next month and give you my report.

5.0Droptop · Apr 23, 2006

yeah 360 would have been easy to attain I just like to keep it safe.

Im satisfied.

85_SS_302_Coupe · Apr 23, 2006

Man that's a sweet GT...would look amazing with some black centered wheels and polished lips....like some ROH ZS's or even black Bullits.

5.0Droptop · Apr 23, 2006

thanks. I like the chrome pony on it.

Jaswir · Apr 23, 2006

congrats on the #'s

5.0Droptop · Apr 24, 2006

Thanks.

5.0Droptop · Apr 25, 2006

ExplodingGopher · Apr 25, 2006

gj, nice #'s, torque is fun, isn't it?

5.0Droptop · Apr 25, 2006

yes it is.

89white50 · Apr 25, 2006

not too shabby, but to be honest i will be upset if the 331 NA im building doesnt get close to 375rwhp and likewise amount of torque. but since ur happy thats all that matters!

5.0Droptop · Apr 25, 2006

I hope you can get the numbers you want. Its very doable. I could of gotten 360 or so but i didnt want to push it.

Dyno numbers are in on the 91gt 347 stroker.

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