supercharger

[Blue_demon]

how safe is it to put a kb 1.7 in a stock bottom end with ported heads and cams????

Thanks

Hector

 

[Kilgore Trout]

According to what I have read here and on the KB website, with a safe tune and not making more than 400 or so HP you should be fine.

 

[03ghoststang]

pretty much what kilgore said as long as you dont go over 400HP and a safe tune you will be ok, but i would consider saving up for a forged bottom end

 

[timeless2]

It's all in how good of tune you get. Trust only the best!

 

[Stangdriver1119]

with ported heads and cams I think ur gonna need to forge out the bottem end because even with a safe tune and running 6-8psi you'll probably be over 400 at the wheels

 

[ADRENLN]

yea im gonna say you should forge it out first also. with the heads and cams you will be making more power then a stock car with the 1.7. kb says its safe on a stock car.

 

[Blue_demon]

thanks....

 

[MEandmyKB]

how safe is it to put a kb 1.7 in a stock bottom end with ported heads and cams????

Thanks

Hector

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[lgndracer]

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You have a 1.7 IC 11lb, heads and cams and are only at 439/434?

That must be one very conservitive tune. I would think you would be at closer to 475 or so with those added mods.

 

[02LaserRed2V]

You have a 1.7 IC 11lb, heads and cams and are only at 439/434?

That must be one very conservitive tune. I would think you would be at closer to 475 or so with those added mods.

Those are actually good #s. Plus he has an auto. KB 1.7L really lose its efficiency when you go over 10 PSI. There are some who couldn't top 450rwhp (with a 5-speed) despite running on 14lbs max. Unlike the KB 2.2, the 1.7 wasn't exactly designed to run that much boost.