just wondering if 13.0 compression is too high for a daily driver.also if i do go with that compression what else should i do to my block.

i'm gonna be running a stock head with that.

 

it's a little high... put if carefully tuned.. I think it might be

 

stock head??? meaning stock cams, springs, retainers etc???

 

yeah completely stock head.

 

no its not! I'm 13.7 and well tuned and never had a problem yet.Just make sure you clay for clearances.

 

What octane level do you run ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ismkv8s &raquo;</TD></TR><TR><TD CLASS="quote">no its not! I'm 13.7 and well tuned and never had a problem yet.Just make sure you clay for clearances.</TD></TR></TABLE>

Haha I guess I'm just not that brave.

 

to run that high compression on the stret usually you have to pull a lot of timing out to be safe on 91 or even 93 octane which means the engine is not making near the power it should.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by v4lu3s &raquo;</TD></TR><TR><TD CLASS="quote">to run that high compression on the stret usually you have to pull a lot of timing out to be safe on 91 or even 93 octane which means the engine is not making near the power it should.</TD></TR></TABLE>

agreed. I went from 10.5:1 ish to about 12:1 and by the time I pulled enough timing out to get it to make power it wasn't any faster in the 1/8th than it was before. Plus on a stock head and stock cams why would you want that high of a cr?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rosko &raquo;</TD></TR><TR><TD CLASS="quote">agreed. I went from 10.5:1 ish to about 12:1 and by the time I pulled enough timing out to get it to make power it wasn't any faster in the 1/8th than it was before. Plus on a stock head and stock cams why would you want that high of a cr?</TD></TR></TABLE>

cuz its JDM y0!

 

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

agreed. I went from 10.5:1 ish to about 12:1 and by the time I pulled enough timing out to get it to make power it wasn't any faster in the 1/8th than it was before. Plus on a stock head and stock cams why would you want that high of a cr?</TD></TR></TABLE>

thats what im saying. why have such high compression and no headwork or cams to make hella good power from it all. its like having a girl friend that wants a boob job but doesnt wanna put out til she's married..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by championshipwhite93si &raquo;</TD></TR><TR><TD CLASS="quote">

thats what im saying. why have such high compression and no headwork or cams to make hella good power from it all. its like having a girl friend that wants a boob job but doesnt wanna put out til she's married.. </TD></TR></TABLE>

haha thats effing great, lol. my guess would be that he is planning on doing head work in the future, but doesnt have the money right now. so one stage at a time. what u need to do is have a good engine mgmt, like the s300. that way you can run one map for street/93 octane and another map for race gas that makes lots more power, same idea im doing for low/high boost...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hpwdhatch &raquo;</TD></TR><TR><TD CLASS="quote">just wondering if 13.0 compression is too high for a daily driver.also if i do go with that compression what else should i do to my block.

i'm gonna be running a stock head with that.</TD></TR></TABLE>


just wondering how you would run that high of a compression WITHOUT doing anything to the block or head?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastludeh22 &raquo;</TD></TR><TR><TD CLASS="quote">

haha thats effing great, lol. my guess would be that he is planning on doing head work in the future, but doesnt have the money right now. so one stage at a time. what u need to do is have a good engine mgmt, like the s300. that way you can run one map for street/93 octane and another map for race gas that makes lots more power, same idea im doing for low/high boost...</TD></TR></TABLE>

well...if he has the money to increase compression, he should have the money to upgrade the internals as well...or else it just doesn't make sense to take apart the engine twice...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by khalal538 &raquo;</TD></TR><TR><TD CLASS="quote">

well...if he has the money to increase compression, he should have the money to upgrade the internals as well...or else it just doesn't make sense to take apart the engine twice...</TD></TR></TABLE>

the way i took it is he is changing the internals on the bottom right now, really the only way to get 13:1... its not that hard to pull a head and have it built, or have a built one to swap on to it in the future...its def a lot easier and takes a lot less time to swap a head then the whole engine...kind of the same princepal of people that build there engine for turbo, but dont have the money to build it and buy a good turbo setup at the same time...or another possibilty cause we really dont know whats going on is he may have a damaged bottom end that requires rebuilding now, so the "while im in there sindrome" starts, and we all know how that goes!!! lol