estimated power?

[neris]

i currently have a 302 with a cobra upper intake. gt40 lower. h w/ no cats. nothing really done to the car.

i have a set of gt40(cast iron) heads that i wanna port as much as possible. and 1.7 rr. i'm also gonna port the upper and lower as much as possible.

how much would i be able to port the heads. upper. and lower? and what would be my power around?

 

[BruhBrahBrad]

Now Dont qoute me on this but IM gonna guess (key word GUESS) your current power is about 205-210, now lets see how close I guess compared to other people

 

[neris]

what would my estimated power be after the porting?

 

[fastgtfairlane]

that will depend on the cam. ive seen over 300 to the tires with everything strategically chosen for the most efficiency. ie exhaust, pullies, good tune, correctly chosen cam. i plan on doing the same thing. as far as porting check out www.diyporting.com

 

[mic_lx]

Now Dont qoute me on this but IM gonna guess (key word GUESS) your current power is about 205-210, now lets see how close I guess compared to other people

that's to the wheels, right.

at flywheel?

 

[LAFENATU]

I made 262rwhp with ported GT40's on my old 92.

 

[BruhBrahBrad]

Now Dont qoute me on this but IM gonna guess (key word GUESS) your current power is about 205-210, now lets see how close I guess compared to other people

that's to the wheels, right.

at flywheel?

Yeah I was thinking wheels

 

[OnyxCobra]

With some simple bolt ons and tuning the stock Cobra motors can make around 270whp. I believe that's about what Addermk2 had his Cobra puttin down before he re-did the engine.

 

[neris]

I made 262rwhp with ported GT40's on my old 92.

is that intakes also? or just heads?

 

[foss_94gt]

i would say around 250- 275 to the wheel after the heads,

 

[neris]

^^ thanks

whats the largest i could port the gt40 intake and exhaust to?

and the gt40 lower and cobra upper.

 

[stangman1995gt]

NOT ENOUGH

 

[1quk50]

X2...

but if you wanna do it yourself just gasket match em.. but if you want max take to a machine shop.. but its gonna cost ya..

 

[LAFENATU]

Neris...

That was:

- Stock panel K&N
- Pro M 75mm MAF
- 70mm TB
- GT40 intake
- GT40 heads ported with stock valves
- 1.7 Rockers
- Crane 2031
- BBK shorty headers
- Prochamber
- Flowmaster catback

My tune was fairly conservative. They could have easily gotten 270's maybe even low low 280's with more timing.

 

[94 DropTop]

Extrude honeing is different than porting though.^^^^^^^^^^

 

[LAFENATU]

Those were different heads...that was my 92 LX. They were fully ported.

You have the heads from the 95 GT.

 

[neris]

^ the gt40 heads are the ones from a 93 cobra. F1ZE-AA . the cast iron ones

but if you wanna do it yourself just gasket match em.. but if you want max take to a machine shop.. but its gonna cost ya..

brothers friend has a shop that's gonna do it for free. so i wanna know the biggest he'd be able to go so i'll be able to buy the new valves for the heads before they're done

 

[armyed]

Yea im going to go with about 265 RWHP with that setup and a decent cam. Good luck with it, and have fun

 

[neris]

tru thanks