Katech LS7 Enhancment pistons announcement!!
Originally Posted by treyZ28
Personally- as long as you aren't detonating I think you'll be JUST FINE.
hyper-U pistons are actually much better than forged pistons in MANY aspects. They just cant take detonation that well. Better than what most people think- but not well.
I've personally detonated the **** out of a 12psi mustang GT (stock engine). It didn't seem to mind much.
hyper-U pistons are actually much better than forged pistons in MANY aspects. They just cant take detonation that well. Better than what most people think- but not well.
I've personally detonated the **** out of a 12psi mustang GT (stock engine). It didn't seem to mind much.
Trey, you are correct. Detonation is bad for cast or forged pistons, and there are pros and cons to both types. Cast is quieter mechanically, but at 7000rpm and 4.000" stroke piston speed is nearly 4700 ft/sec. When placing an additional 20% stress into the piston because of power output we feel a forging is necessary.
These forged pistons are not to take care of detonation, they are to enhance the integrity of the rotating assembly with a higher-than-stock horsepower LS7. This also gives you a greater margin of safety if you over-rev your engine.
Last edited by Katech_Jason; Dec 20, 2005 at 08:05 PM.
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pistons
Originally Posted by Katech
GM has done an excellent job pushing the envelope of cast pistons. However, if you're seeking 100 additional horsepower with these piston speeds we are going to recommend forged pistons.
Originally Posted by wanabzzz
just got off the phone with michael from lg motorsports, he said that the z06 pistons are not cast but good quality forged. is he right
Originally Posted by wanabzzz
just got off the phone with michael from lg motorsports, he said that the z06 pistons are not cast but good quality forged. is he right
Originally Posted by Greg Fell
You should ask Michael from LG why they pulled apart an LS7 from a new zo6 to replace with forged pistons then 
Ha ha, good point. They also said that only a 1.75 primary header would make power and that bigger then 1.75 primary's were not optimal for the ls7. hmmmm.......
Yes, they told me that too. But, they don't sell 1.875" headers either. 
FWIW, Cartek said that they make more power on big motors with the Kooks 1 7/8" than the LGM 1 3/4". I guess thats a whole different discussion though.
FWIW, Cartek said that they make more power on big motors with the Kooks 1 7/8" than the LGM 1 3/4". I guess thats a whole different discussion though.
