lower than stock compression ratio / 1G

[210 dsm]

i here the stock 1g 6 bolt compression ratio is 7:8:1. but the stock pistons are only good for about 400 horses. and the lower the compression you have the higher you can turn the boost up. so my question is why are the majority of pistons out there (JE, ROSS, WIESCO, ect...) all rated to like 8:3:1 or 8:5:1 and even 9:0:1. shouldent lower compression be more logical for a high horsepower motor. it would be nice to find some 7:8:1 aluminum/forged JE pistons. i just dont understand why would anybody want to raise the comp. ratio and risk their motors life. or is 8:0:1 and 8:3:1 low enough for something around 29 - 35 psi?

 

[JayRolla]

Higher compression also makes more power. 8.8:1 for a lot of people is the perfect spot. The stock 1g piston allows for a lot of boost but is a very low compression and more power can be made with a higher compression piston as long as the tune is fine.

If you run race fuel, alcohol or something to help fight detonation than you dont have to worry about the higher compression and can make more power than if you where running lower compression.

 

[4ced4g63]

A higher compression will yeild more power with less boost. Thats how the honda guys make decent power with like 6 to 10 psi.

 

[Asimmons90GSX]

i here the stock 1g 6 bolt compression ratio is 7:8:1. but the stock pistons are only good for about 400 horses. and the lower the compression you have the higher you can turn the boost up. so my question is why are the majority of pistons out there (JE, ROSS, WIESCO, ect...) all rated to like 8:3:1 or 8:5:1 and even 9:0:1. shouldent lower compression be more logical for a high horsepower motor. it would be nice to find some 7:8:1 aluminum/forged JE pistons. i just dont understand why would anybody want to raise the comp. ratio and risk their motors life. or is 8:0:1 and 8:3:1 low enough for something around 29 - 35 psi?

Umm....wrong WTF......Dude 1G pistons are able to withstand 600+ hp. The pistons are 7.8:1 yes but they are in no way limited to 400hp. Don't know where you heard that but people have made 500+whp on STOCK 6 bolts for years. Do some reasearch before you make statements like that.
But I have to agree with the other guys on the compression ratio yeilding more power when it's higher. The stock evo 8 and 9 compression ratio is 8.8:1 and they handle large amounts of boost with no problem. In fact, those motors are equal if not superior to a 6 bolt. So if you are building a 6 bolt go with something around 8.5:1 or higher and you'll have no complaints and it WILL handle plenty of boost...trust us. Good luck