Whats better for supercharging?Stock, or hyperutectic?
Senior Member
Joined: Nov 2000
Posts: 727
Likes: 1
From: Charleston, WV, USA
Car: '86 IROC-Z + Misc. project cars.
Engine: Supercharged + Nitrous TPI 355 CID
Transmission: Art Carr built Th700r4
if you use an "over the counter" Procharger kit on a stock engine you can use the stock pistons. 
hypers are physicaly strong but retain a lot of heat and can not take detonation at all. As long as you don't detonate the engine your fine. If you do detonate it it's done! 
If you plan on supercharging and are doing a rebuild or build up, go ahead with forged pistons just for safetys sake. You can't go wrong there. 
After spending $$$$$$ on a supercharger what is $100 - $200 extra to get forged over hypereutectics? 
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EFI Performance Club on Yahoo
hypers are physicaly strong but retain a lot of heat and can not take detonation at all. As long as you don't detonate the engine your fine. If you do detonate it it's done! If you plan on supercharging and are doing a rebuild or build up, go ahead with forged pistons just for safetys sake. You can't go wrong there. After spending $$$$$$ on a supercharger what is $100 - $200 extra to get forged over hypereutectics? ------------------
- 355 cid
- AFR heads
- Arizona Speed & Marine hydraulic roller cam w/ AFR hydra-rev kit
- modified SLP runners
- TRW forged pistons/ceramic coated
- fully balanced
- Edelbrock headers/ceramic coated
- SLP cat-back
- Paxton supercharger
- Nitrous Express nitrous oxide
EFI Performance Club on Yahoo
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