Dyno numbers are in on the 91gt 347 stroker.

[5.0Droptop]

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]

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]

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

 

[Grn92LX]

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]

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]

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]

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]

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]

Thanks D.

 

[SoldMySS4a5.0]

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]

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

Im satisfied.

 

[85_SS_302_Coupe]

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]

thanks. I like the chrome pony on it.

 

[Jaswir]

congrats on the #'s

 

[5.0Droptop]

Thanks.

 

[5.0Droptop]

ttt

 

[ExplodingGopher]

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

 

[5.0Droptop]

yes it is.

 

[89white50]

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]

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.