Getting blown!!!

[usmcpony]

I just purchased a polished KB 2.6L. Im having it installed at a performance shop on May 12th and the shop says 450RWHP is the most I can get out of it with a stock block. Is there a safe way to get around 470RWHP? The KB comes with the standard pullie I am assuming it is the 8lb pullie. can I get 470 RWHP with just 8lbs? If not what kind of HP and TQ numbers should I expect?
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2007 Mustang GT, Cervinis kit, Alloy with painted tungsten stripes, Kooks LT, Kooks catted x-pipe, Magnaflow catbacks, Eibach pro-kit, 20" raceline rims

 

[WHITEPOISON]

well you can always change the pulley tht will get you more power also running racing fuel wit a race tune, and just depends on how good the person tunes your car..

 

[Hatchman]

That kit comes with the 8psi pulley. You should expect around 440-450 rwhp SAE corrected. On a cold, dry night, I put down an actual (but uncorrected) 472 RWHP with my 8 psi set up. Obviously, it's less with heat and humidity. You should be able to go with a 10 psi pulley and get an around 470 RWHP SAE corrected. Might as well do it when you get it dyno tuned, or you'll have to pay for another dyno tune later. I'm very happy with my 8psi, and after a year and a half, have no desire to bump up.

Congrads on the polished KB! Great choice.

 

[Fastmover]

So much for selling the car! I am making 500 RWHP on a stock motor. A race tune and race fuel keep it safe, NOT a DD>

 

[Larmo]

someday I'll get blown too...

 

[don_w]

can I get 470 RWHP with just 8lbs?

Anything is possible, I suppose... it just depends on how much timing you want to throw at it. IMO, you'd be a lot safer at 470 on 10psi than you would at 8psi.

 

[usmcpony]

someday I'll get blown too...

You need a blower with your car since you have the gt500 kit.

 

[usmcpony]

Anything is possible, I suppose... it just depends on how much timing you want to throw at it. IMO, you'd be a lot safer at 470 on 10psi than you would at 8psi.

Thats what I was thinking

 

[Fastmover]

someday I'll get blown too...

On yours I would add a whipple you could fool somepeps and tell them is is a 5.4

 

[Larmo]

I may plan on a whipple so I can live up to the name at least by the numbers... so damn expensive though.

 

[WHITEPOISON]

Nice Conversion Larmo You Could Have Fooled Me Very Nice,, Was Tht A V6 Or What

 

[2kanchoo]

The question isn't can you make 470rwhp. The question is can your stock internals handle 470rwhp.

 

[WHITEPOISON]

it can handle it my cars makin alot more than 470 and i got no problems

 

[mygt500]

I may plan on a whipple so I can live up to the name at least by the numbers... so damn expensive though.

So true....but sooooo worth it!

 

[2kanchoo]

it can handle it my cars makin alot more than 470 and i got no problems

alot more than 470rwhp? I'd say you're on borrowed time... you are a way braver man than I that is for sure.

 

[WHITEPOISON]

yea i havnt had any problems, i barelly drive the car though its on race fuel and tune.. 12 pounds boost stock internals and stock bottom end.. its gonna get built soon

 

[thump_rrr]

Mine has been blown for half of its life now and for half of its 1200 1/4 mile runs.
It is putting down 500/475 on 93 octane JDM mail order tune and I hammer the crap out of it every chance I get.

If your tuner says that 450 is the limit I'd be asking more questions such as how many S197's he has tuned and if he owns and/or races one.

There are many tuners out there that can get you more than 450rwhp reliably just not on the 8 psi pulley.

 

[2kanchoo]

Mine has been blown for half of its life now and for half of its 1200 1/4 mile runs.
It is putting down 500/475 on 93 octane JDM mail order tune and I hammer the crap out of it every chance I get.

If your tuner says that 450 is the limit I'd be asking more questions such as how many S197's he has tuned and if he owns and/or races one.

There are many tuners out there that can get you more than 450rwhp reliably just not on the 8 psi pulley.

By 450-475rwhp being the limit I was talking in relation to the strength of the stock rods etc I think his tuner might have been as well. A tuner might be able to get you that power at low boost levels but that doesn't mean the rods aren't gonna snap.

 

[forensicsteve]

Where's the OP from? Maybe his dyno numbers were achieved under adverse conditions like high humidity or high altitude? I imagine my numbers would be different if I was operating in Canada rather than on the Gulf Coast in May. It's getting hot and nasty down here already. Gotta wait until October for cool dense air.

 

[whiteflash454]

Ahhh I Want My Whipple Already!!!