Hey guys,
I'm interested in buyin pistons. A few months ago I found these:

# 88958634
HIGH PERFORMANCE PISTON SET $779.95
Designed as a direct replacement for your stock ECOTEC piston, these parts can withstand extreme horsepower levels. The top compression ring has been lowered slightly to help the ring and land survive in a high output engine, especially those using nitrous and superchargers. These pistons are used with the stock bore diameter and the floating pins are stock diameter. This piston will yield a 9:1 compression ration with the stock head gasket.





Detailed description
Brand: GM Performance
Product Line: GM Performance Parts Ecotec High Performance Piston and Ring Sets
Part Type: Piston and Ring Kits
Bore (in): 3.386 in.
Bore (mm): 86.000mm
Piston Style: Dish, with a D shaped cup
Piston Material: Cast aluminum
Wrist Pin Style: Floating
Pin Diameter (in): 0.905 in.
Gapless: No
File Fit: No
Top Ring Thickness: 1.2mm
Top Ring Material: Iron
Top Ring Facing Material: Moly
Second Ring Thickness: 1.2mm
Second Ring Material: Iron
Second Ring Facing Material: Cast iron
Oil Ring Thickness: 2.5mm
Oil Ring Material: Stainless steel
Oil Ring Tension: Standard
Quantity: Sold as a set of 4.

Piston/Ring Kit, Cast, Dish Top, 86.00mm Bore, 1.2mm/1.2mm/2.5mm Rings, Chevy, 2.2L, Set of 4

Application


Make CHEVROLET
Engine Type L4
Liter 2.2
CID 134
Engine Size 2.2L/134
Beginning Year 2002
Ending Year 2005
Engine Family GM 4-cylinder
Stroke 94.60mm
Rod Length 5.765 in.
Application Notes Ecotec engines. Use with LSJ rods (less than 300 hp only).




Sources on the web
http://forum.jbodydeltaquebec.com/vi...2bc5deb77ead9c
2.2L Ecotec High Performance Piston/Ring/Pin Set
http://store.summitracing.com/partde...6383&N=700+115

It seems these are for the 2.2L with LSJ rods. I have a 2.0LSJ.
Question #1 Will this fit the stock LSJ connecting rods?
Question #2 Is there anything that I should change(other parts) if this fits?

Thanks

 

I too am looking for pistons that are 9 to 1 compression ratio because I am going GT30R turbo with like 28 pounds with meth. Is there any other companies that manufacture them?

 

28psi with 9:1 pistons?

 

Well, these are the only ones I found out 9.1:0 CR. I know diamond makes pistons and I've seen 9.5:0. Don't know if you can customize. I email JBP once and they do custom pistons.

Definitely 28 psi is too much. If you're going that high, you should choose 8.0:0 CR. I didn't notice you wrote 28 psi.

I will be doing a turbo swap, but I'm looking for 350-400WHP, so it will be about 20-22 psi

 

even running race gas? and meth?