Can My Stock GT Handle a Kenne Bell 14PSI Kit?

SVTStang03 · Feb 16, 2004

Basically the same as the topic, Can My Stock GT Handle a Kenne Bell 14PSI Kit?

My motor is all internally stock, just intake and exhaust. What I want to know is what will I need to do to my engine to prepare for this 14psi kit, if anything. Any feedback is awesome!

Thank you!!

mogs01gt · Feb 16, 2004

hmm that is a lot of boost, you would really have to pull some timing with that much. I dont think anyone has made that much on a GT yet with the KB system. I think most have been turning it down.

Better to run lower PSI with more timing increased than it is to run more PSI with more timming pulled.

SVTStang03 · Feb 16, 2004

Well, I want at least 480-490 RWHP for under $6000. I was thinking maybe some Cobra heads and the KB system? Of course a good timing adjustment and a dyno tune...

Beau · Feb 16, 2004

i am sure it will handle it, the question is for how long. the kind of hp you are talking about might just require that you DO spend more than 6k, i.e. a forged shortblock and all the goodies.

mogs01gt · Feb 16, 2004

SVTStang03 said:
Well, I want at least 480-490 RWHP for under $6000. I was thinking maybe some Cobra heads and the KB system? Of course a good timing adjustment and a dyno tune...

for 6 grand? Wont get you there without blowing the motor. Build the motor first then start adding power. I would go with a twin turbo if I had that type of money.

SVTStang03 · Feb 16, 2004

Well the bottom line is I want the 14+ psi KB system to work, and I need it to be my daily driver as well. So a forged block, heads, what else?

4.6modular · Feb 16, 2004

I believe that when several of the magazines did a test on an otherwise stock GT they said that with the 14psi you would have to run racing octane fuel. Running a stock GT on a 14psi KB on pump gas = borrowed time for the engine. The 9 and 11psi kits are more stock engine friendly kits and you can use high octane pump gas. It might be possible to run a 14psi kit with an extremely safe tune for high octane pump gas but I think they really haven't put much R+D into a street friendly 14psi kit. It's more for built motor racing engines.

SVTStang03 · Feb 16, 2004

So you think 10-11 PSI is safe for my application? I want the most HP out of a KB kit with other small mods. I have about $7500 to play around with, but I need brakes too.

mogs01gt · Feb 16, 2004

brakes dont make you go fast.

If I had 7500, stage 2 heads, cams, valve springs and a procharger but thats my plan. actually I would probably just get the short block and heads.

SVTStang03 · Feb 16, 2004

No they don't make you go fast, but they help to keep you from dying fast... I want just as much stopping power as go power.

DBMSTNG · Feb 16, 2004

one word...

KABOOOOOM!!!

007 · Feb 16, 2004

Stock block wont work for those kind of numbers. You need to talk to cobrakiller.

el_kid_1 · Feb 16, 2004

For that boost level you will need to fill up the tank with high octane gas (100+). That's the only way that the stock block will handle the added power. I would just stick to the 9 psi kit and get all the KB goodies...switch chip, CAI, Big Tube, 70 mm TB. With that combo, you should see 430rwhp which is more than an extraordinary hp number. Enjoy

SVTStang03 · Feb 16, 2004

OK, so the 9 PSI kit will work fine with my stock block? I will just do that if that is the case.

Can My Stock GT Handle a Kenne Bell 14PSI Kit?

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