compression ratios

[portaman03]

ok, ive heard about when you turbo a NA engine you have to change the compression ratio. what does this mean? different pistons?? im lost.

[cuba3377]

diffrent compression ratios can mean alot of things. lets start by saying this: turbo's push air into the engine, or rams it in. the more air you have, the more fuel you can burn, and the more power you will get.
now, if you increase the area that you are compressing in side the engine, you can compress more air, and make more power. you can do this in several ways. one easy way would be to get bigger head gasket. another way would be to bore out your engine. you can also get difrrent style pistons, or decrease the stroke of the engine (how far up the piston goes). that way, you can have more space to put in air and fuel.
PORTAMAN, please visit this website. it wont make you a turbo technecian, but it will point you in the right direction. (and you get nice pics too^ ^)

http://auto.howstuffworks.com/turbo.htm

reply once you see the page and let me know what you think (for future postings)

[portaman03]

thanks for the info, but ive read that link many a time lol... along with others. i have a precise knowledge of how turbos and turbo components work, i was just unclear on the topic of compression ratios. all in all, im purchasing a DRAG turbo kit for my f22b1 accord motor and im trying to figure out if im going to need any immediate modifications in order to prevent damage or malfunction. also i was planning to up the boost from 6psi to 8 or maybe 10psi. i guess im just worried lol but thanks.

[cuba3377]

lol Oo
I belive for that engine, if its the one i think, 7psi of pressure without intercooler is the best/safe method. with inter cooler you might want to try 8-9 psi

[portaman03]

yeh the kit comes with EVERYTHING, one of the most complete kits on the market. check out dragturbokits.com

[cuba3377]

HEY!!!! i saw that on ebay the other day. did you get that website from ebay?? because if u didnt, sometimes they give specials there. just some FYI

[portaman03]

yea i know lol ebay is sweet

[cuba3377]

lol. i work at night. so i barly buy parts other than online. most of my parts where bought on ebay. including the graphics (39.99)

[portaman03]

what a coinsidence. like 95% of my parts are off ebay too lolol.... header, race cat, catback, groundwires (screw em), and the intake filter heat shield heh

[cuba3377]

The way i see it is, if you go to a speed shop, they multiply prices. ebay on the other hand is normally cheaper. I bought my chrome catalitic converter for 35 bucks. speed shop wanted $125 plus installation.

[portaman03]

no doubt. did u get the striahg through cat?? aka testpipe?? if so, have u installed it?? how does it sound and did u feel and power gains..

[cuba3377]

lol portaman, to be honest with you, the muffler sounds a little bit louder, not higher pitch, but louder. i felt a small increase in power, around 5k up to redline.
and the most coolest part, is since i have a fmu, and a striaght through exaust too, when i rev up real high, flames come out of the exuast. i have pictures to prove it. no spark plug in the muffler or anything

[cuba3377]

Honestly, it was the best 35 bucks spent on ebay, other than the fmu for 50 bucks, with pressure guage

[cuba3377]

to tell you the truth, i really dont like those high pitch mufflers, that sound like lawn mowers, but on integras, a muffler + straight through cat sounds real nice.

[portaman03]

*brainfart* ...whats an fmu?? and my friends v6 acura legend used to shoot flames naturally too.. it was kickass...