What's everyone's compression ratio on their big boost setup? I'd like to hear numbers from full drag guys that strictly race their cars. Thanks!

Danny

 

My old B motor was somewhere above 12:1, 84mm LS block, B16 head, 2cc Dome wisecos

With a 42R it made around 510whp@11-12psi, 635whp@20psi. That is as far as we took it.

 

that motor was like the alligator f*** house

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedJeff &raquo;</TD></TR><TR><TD CLASS="quote">My old B motor was somewhere above 12:1, 84mm LS block, B16 head, 2cc Dome wisecos

With a 42R it made around 510whp@11-12psi, 635whp@20psi. That is as far as we took it.</TD></TR></TABLE>

How long did the motor last or what happened to it?

 

Sweet! Yeah, what happened to it? What kinda fuel did you tune it on?

 

i want info too. i got a little less, and am already planning the turbo setup for after the nitrous setup thats not even on the NA setup yet ill throw i thicker head gasket on my piece and boost it to the sky!

 

that motor of jeffs is still together from what he told me. Its been together for a while. I remember building it for him like 2 winters ago

 

my old 35r motor was 12.5:1 +. made 550 @ 18lbs of boost, and maxed its self out at 25psi. it was on sunoco 115 octane fuel back then. seemed to last pretty well until 2 injectors quit firing haha

 

I knew an old Hot Rod car a few years ago that was running 12.5:1 methanol setup on 35+psi.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NINE9DC4 &raquo;</TD></TR><TR><TD CLASS="quote">Sweet! Yeah, what happened to it? What kinda fuel did you tune it on?</TD></TR></TABLE>

Nothing happened to it. Joe just pulled it apart to make sure it was cool, we are using that as the spare motor for the integra this season. It was tuned on C16.

From what Joe has told me, higher compression isn't much harder to tune, it just leaves less room for error..? Either way, it seems to make sick power at lower amounts of boost.

 

I know 10-12:1 is common among methanol pro cars. I asked Mark about it when I had him sleeve my SR20, and he suggested just staying around 9:1 for a gas setup. He basically said it all came out as a wash. Basically, its either 11:1 and 30 psi, or 9:1 and 40psi. Both will end up being similar in reliability and such. So, I took his advice and am running shelf CP's @ 9:1.

 

using wiseco 10:1 on 91 @ 400whp on pump 91 and c16 Littler over 600 @ 25 psi..

 

i dont really notice a difference between 10:1 and 9.5:1, but of course its not that large of a difference.

 

Bringing this thread back

My 12ish:1 LS/Vtec just made 803whp the other night. Would have pushed it more, but the motor still has standard wrist pins and off the shelf Wiseco pistons. This was done with B16 Cams lol.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostedJeff &raquo;</TD></TR><TR><TD CLASS="quote">Bringing this thread back

My 12ish:1 LS/Vtec just made 803whp the other night. Would have pushed it more, but the motor still has standard wrist pins and off the shelf Wiseco pistons. This was done with B16 Cams lol.</TD></TR></TABLE>

Holy ****, B16 cams doin it

 

i took the b16's out and put in GSR's when you were sleeping lol

this is joe on jeffs computer

 

Did you really?

wow, this looks like I am having a conversation with myself

 

your one sic man lol