as topics says. ive searched and been through some of the high compression threads. i just responses from people who have done it or knows sombody who has. is it possible lets say 5-7 psi? this would be on a non vtec would shift before 7k.

 

i've seen a few high compression turboed set-ups.....not my cup of tea ..but it can be done...think of the expensive gas you'd have to run all the time ....and limited amount of boost ..why would you want to go there? (just wondering)

 

just because i already have a built engine with 13.5.1 pistons in it. just thought about slapping a turbo on it so i dont have to tear nothing down.

 

not worth it IMO bro break down and lower the compression you will thank me in the long run... no point in taking those kinda short cuts in a turbo build unless your one of those cats out to prove something or its something YOU wanted to do...it to me doesn't make sense to limit yourself from power over some pistons..i don't even know if i've seen a 13:5:1 turboed motor but i've seen right up there near it...

 

well maybe i should be out to prove something what you think

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Prelude91siT &raquo;</TD></TR><TR><TD CLASS="quote">well maybe i should be out to prove something what you think
</TD></TR></TABLE>

well???? you should already be able to tell what i think....its a waste of time ..its going to suck when a stock SOHC turbo or stock B-seires turbo walks right by you because of your limit of power....then you just proved that you can almost run faster then these stock builds...but its what you want to do ...G/L with your decision bro

 

i'd rather tear my motor down and put 9:1 pistons in than have to run race gas daily.

 

Look at the benifits of high CR in NA - a gain of 15% max (w/same other parts) going from 9:1 to 13.5:1. Then look at the benifits of low CR for boost - a gain of 20 extra psi. It doesn't take long to find dyno graphs of the 60-1 and 57 trim turbos to show that 5psi vs 25psi is WAY more than 15% whp.

There's also the fact that 15psi+ is much easier to control than a low number like 5-7psi when you're using a large turbo. A boost spike with 13.5:1 CR *will* blow your motor, where as a spike from 20psi to 25psi on a 9:1 CR motor will take it in stride.

I say take them out and sell them to some rice head. THere's always some LS/Vtec teenie bopper who wants insane compression in his street car but doesn't have money for new pistons (no offense to you for running it ).

 

i agree<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HiProfile &raquo;</TD></TR><TR><TD CLASS="quote">Look at the benifits of high CR in NA - a gain of 15% max (w/same other parts) going from 9:1 to 13.5:1. Then look at the benifits of low CR for boost - a gain of 20 extra psi. It doesn't take long to find dyno graphs of the 60-1 and 57 trim turbos to show that 5psi vs 25psi is WAY more than 15% whp.

There's also the fact that 15psi+ is much easier to control than a low number like 5-7psi when you're using a large turbo. A boost spike with 13.5:1 CR *will* blow your motor, where as a spike from 20psi to 25psi on a 9:1 CR motor will take it in stride.

I say take them out and sell them to some rice head. THere's always some LS/Vtec teenie bopper who wants insane compression in his street car but doesn't have money for new pistons (no offense to you for running it ).</TD></TR></TABLE>


deff just throw in som low c/p pistons and call it a day. much better

 

i might just try and turbo as is well see. has anybody seen this done?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Prelude91siT &raquo;</TD></TR><TR><TD CLASS="quote">i might just try and turbo as is well see. has anybody seen this done?</TD></TR></TABLE>
Good Luck!!

 

You could probably get good power with it on e85..

 

Do you have access to E85? If you don't mind running low boost, and going out of your way for E85...I'd say go for it.

Just try and make the turbo setup as efficent as you can afford. (large turbo with a large A/R turbine, 3-4" exhaust, big *** IC...ect). Then find yourself a tuner thats up for the challenge.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boostwerks.com &raquo;</TD></TR><TR><TD CLASS="quote">Do you have access to E85? If you don't mind running low boost, and going out of your way for E85...I'd say go for it.

Just try and make the turbo setup as efficent as you can afford. (large turbo with a large A/R turbine, 3-4" exhaust, big *** IC...ect). Then find yourself a tuner thats up for the challenge. </TD></TR></TABLE>

How much power do you think it could make? I'd just be guessing, but I have a feeling that it would be enough to satisfy the o.p.

 

unless gas stations around you sell jet fuel i think you'll have a hard time getting power. 6 psi is prolly all that kinda CR can take.

 

just yank off the head, throw a few metal gaskets on there and BOOST. have your camera ready we will want to see the pics

 

we tried it made 470 b4 vtec but the toooner didnt pull enough timing detonated it to death on dyno

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1dumbassscreenname &raquo;</TD></TR><TR><TD CLASS="quote">just yank off the head, throw a few metal gaskets on there and BOOST. have your camera ready we will want to see the pics</TD></TR></TABLE>

yes I agree...or just get some 9:1's and call it a day man...sorry if I missed it but will this be your daily driver?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by onefine99 &raquo;</TD></TR><TR><TD CLASS="quote">we tried it made 470 b4 vtec but the toooner didnt pull enough timing detonated it to death on dyno </TD></TR></TABLE>

Could you elaborate..? Setup, fuel, etc, etc?

 

dartons 84 mm b16 head sc61 on 114 880cc precisions

 

how much psi was u running? u had 13.5:1 pistons?

 

You can boost on your 13.5:1 compression setup if you want, but you're going to be limited on pump gas. PSI doesn't mean a thing so stop basing things on that...

If you ran 93 octane and added methanol injection on top of it, you could make some decent power. If you have access to E85, your power potential goes up quite a bit.

I wouldn't recommend doing it, but with the right setup, fuel and tune, you could have a pretty good setup.

 

the 13.5:1 would give you really nice mpg too.

 

i thinki just might have to try it. i do have access to e85 but its a couple hours away. but im cool with that cause im not going to be drivng the car everyday anyways. so would i run straight e85? i still want the car to be streetable for the days and nights i feel like driving a around and raping some cars

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Prelude91siT &raquo;</TD></TR><TR><TD CLASS="quote">i thinki just might have to try it</TD></TR></TABLE>

Since you came into this thread knowing what you were going to do before you asked, why did you bother asking?? I get really annoyed when people make threads in which they ask for opinions that they immediately disregard anyway