if you run 9:1(dont use de pistons) you will have to back the boost off, so much so that it will negate installing 9:1 pistons in the first place. if you wanna make 350whp, buy a 2871, some stage 2 cams, injectors, headgasket, etc. and you'll make 350whp.

 

Ya 9:1 not bad. Just get it tunned. The higher the compresion with boost , you need better gas. Thats y they come factor with 8.5:1 of somthing like that. so you wont have to run race gas every day.

 

400whp can be done on stock compression and pump gas. t3/t04e kit at 20psi made 391whp according to enjuku

 

cant you yeild more hp with higher compression even if you lower the boost?

 

cant you yeild more hp with higher compression even if you lower the boost?

dumb ass did you not read my post? the sr makes power because its boosted, not because its 2 litres. since you can dump more air into the motor with 8.5:1 pistons there is no reason to change the compression ratio. go to c12 or c16 and its a completely different story.

 

thanks alot guys. Ill stick with the stock compression.

 

i was asking a question if you could get more hp but now i learned you cant and i also learned that you think that im a dumb ass. didnt have to flame. forums are here to learn and ask questions, not to flame.
thanks

 

i was asking a question if you could get more hp but now i learned you cant and i also learned that you think that im a dumb ass. didnt have to flame. forums are here to learn and ask questions, not to flame.
thanks

 

shit! there's the broom again...

 

lol u guys ....jus tooo funnnyyy..lmao

 

whats the broom for?

 

Ya don't wanna know

 

whats the broom for?

its for you. bend over cowboy.

 

Actually a 9.0:comp would yield the same HP levels with lower boost and have better torque. Say you go with the 8.5 comp running 22 psi on the 9.0 comp you would only have to run 17 psi for the same out come. You can run 9.0 comp pistons on the street with a proper tune it has been done many a times. As long as you have the tune you can run it. I personally don't like to run 9.0, but a lot of guys do. I just like to have the buffer so if you get a bad batch of gas you are still safe. However a 9.0 would be a good comp for drifting since your torque curve would be more favorable even with a small turbo installed. If there is nothing wrong with the motor though why bother in tearing it down just to bump the comp. Now if the motor was bad that would be another story...

 

I was asking for when i do tear it down to build it stronger later down the line. Just doing some research. Thats all. Now my research tells me to keep the stock compression when i go to rebuild. Thanks for the help guys.

 

i dont think you would notice a difference in .5 compresion.

 

Actually a 9.0:comp would yield the same HP levels with lower boost and have better torque. Say you go with the 8.5 comp running 22 psi on the 9.0 comp you would only have to run 17 psi for the same out come. You can run 9.0 comp pistons on the street with a proper tune it has been done many a times. As long as you have the tune you can run it. I personally don't like to run 9.0, but a lot of guys do. I just like to have the buffer so if you get a bad batch of gas you are still safe. However a 9.0 would be a good comp for drifting since your torque curve would be more favorable even with a small turbo installed. If there is nothing wrong with the motor though why bother in tearing it down just to bump the comp. Now if the motor was bad that would be another story...

your right stubby but we're talkin pump gas here.

 

dumb ass did you not read my post? the sr makes power because its boosted, not because its 2 litres. since you can dump more air into the motor with 8.5:1 pistons there is no reason to change the compression ratio. go to c12 or c16 and its a completely different story.

I completely disagree.....

Is that why my KA-T makes more power than your SR on pump gas with only 12 PSi with a T28? Stock 9:1 compression! Your splitting hairs on gas 8.5:1 and 9:1 are not far enough off to make a compression relative to gas difference.....Think about what you say before you say it..... i could see 9.5:1 using a toulene mixture or race gas but 9:1 compression does not warrant anything more than High test gas......

An SR with 9:1 compression ratio will not yeild enough to be worth it though, due to lack of displacement and stroke......(well unless your plan is to build a monster)

Sorry Geist... I think you should fly your broom for yourself....

 

I completely disagree.....

Is that why my KA-T makes more power than your SR on pump gas with only 12 PSi with a T28? Stock 9:1 compression! Your splitting hairs on gas 8.5:1 and 9:1 are not far enough off to make a compression relative to gas difference.....Think about what you say before you say it..... i could see 9.5:1 using a toulene mixture or race gas but 9:1 compression does not warrant anything more than High test gas......

An SR with 9:1 compression ratio will not yeild enough to be worth it though, due to lack of displacement and stroke......(well unless your plan is to build a monster)

Sorry Geist... I think you should fly your broom for yourself....

awh the noob read the post about rocket fuel and thinks he knows what hes doing, how cute. im about to flame your ass and its your own fault. yes your ka-t makes more power than an sr at 12psi(as it should), but it has little to do with the 9:1 compresion ratio and more to do with the extra half litre you have on the sr(for those of you who want to split hairs i know its 2.4 litres not 2.5, but the sr isnt exactly 2 litres either. poor noob, paid some to build him a car and thought it made him special. i think you should join that other guy on his broom or would you like me to find you your own?

 

awh the noob read the post about rocket fuel and thinks he knows what hes doing, how cute. im about to flame your ass and its your own fault. yes your ka-t makes more power than an sr at 12psi(as it should), but it has little to do with the 9:1 compresion ratio and more to do with the extra half litre you have on the sr(for those of you who want to split hairs i know its 2.4 litres not 2.5, but the sr isnt exactly 2 litres either. poor noob, paid some to build him a car and thought it made him special. i think you should join that other guy on his broom or would you like me to find you your own?

LMAO...You wouldnt happen to know who gave you the stupid stick would you?

Well If you havent seen it yet here it is mr picture!
Fuck your broom!

If im not mistaken, im not the first one in this thread to tell you you were wrong....

PS. You dont allways have to be right, no matter what your daddy told you!

 

read what you wrote puresx, you're wondering why your motor which is .4l larger and has a T28 makes more power than a 2.0l w/ a T25....hmmm.

 

geist, quit using that broom, or so help me i'll find a picture of you on the internet, you don't even WANNA know where i'm gonna photoshop it.

 

read what you wrote puresx, you're wondering why your motor which is .4l larger and has a T28 makes more power than a 2.0l w/ a T25....hmmm.

it's because he has NAWSS stickers and neons installed, with a flux-capacitor relocation kit and a turbocharged rotary v8 intercooler

pffft. when did engine size count?

 

shit. i didnt know about the neons....

 

read what you wrote puresx, you're wondering why your motor which is .4l larger and has a T28 makes more power than a 2.0l w/ a T25....hmmm.

I know what i wrote.....I guess retorical questions dont come through very well on the net?
(thats a retorical question please dont answer):thumbsup

Regardless compression does have to do with boost relativity just not splitting hairs about needing race gas with 9:1 compression on an SR....