marvel1988

I wanted know your thoughts on running high compression on my boosted single cam on 15lb?

mmcd

How high compreession we talking?

dk=gsr

yea depends on how high?
the highes i've seen was 10:1 on 10IBS.

dk=gsr

its like the higher you go the lower you can boost.

DirtyDA9

That's way too much boost for high compressin, you would need the worlds best tune, E85 and methanol injection,

dk=gsr

check it out youtube.
not sure what it is but i think it was an S2k.
and there is a sohc vtec at 10:1 boosting 16IBS, prob. on race gas.

SLIM NOTHING

just do it

marvel1988

I was thinking 10:1 cause thats the highest I herd and it dont really matter how much pounds of boost I run I just wanna make the most 350hp.

marvel1988

Im trying to do it on pump gas sooo of thats the only way I could then forget it ill go low comp

DELshaneSOL

I'm doing 7 psi on 10.4 b16
Stock

00Red_SiR

Search user mar778c, he made the power you want and more on pump gas and 11.8:1 compression.

marvel1988

can't find that vid think you could get the name?

marvel1988

I herd its easy for a dually to do that though

marvel1988

Ight cool thanx

Turbo-LS

iTrader: (4)

9.5:1-10:1 compression is fine for boost and 93-94 pump gas if you have a good tune

marvel1988

Ok thanx.how much boost do you think?

94 ls teg

i made 425 on 15lbs on 11.0.1 comp on 93 pump gas
b series tho

SPOOLINmatt

The compression does not change how much power you block can handle. You'll really be fine with even 11:1 as long as you don't over power the components

DirtyDA9

10.0:1 is fine, I thought you were talking about like 12/13:1 comp ratio.

Look into methanol injection though. You can make it yourself with windsheild washer fluid and Kleen (or other products).

I would start out at 10-12psi (depending on the turbo), with a good tune.

DirtyDA9

Lol you don't want to run high psi with high compression because of pre-ignition/detonation, diesels run off of pre-ignition.

TheShodan

iTrader: (14)

And yet no one here talks about boost pressure with a particular turbocharger? What good is giving your brother's-sister's-cousin's-former-roomate's boost pressure without the specific turbocharger mentioned, nor the setup or use needed?

It all depends on what you use.....

the next person that starts listing boost pressure and no other information on their setup, I'm comin' through the screen and throwin' 'em a beatin'!!

cibao2ner

15lbs on a ebay turbo and 15lbs on a gt42r are not the same thing.....people need to understand this...

DirtyDA9

I mentioned it, two posts above yours, I put "10-12psi (depending on the turbo)"

TheShodan

iTrader: (14)

You're still stating a general BOOST PRESSURE LEVEL, without giving a mention to what size CFM airflow rate. You can't start at 10-12 of anything without knowing what the hell he's got. You can't assume that people know there's a proper RANGE of airflow rates that you can even give that 10-12 psi for.. You have to be more specific if you're going to advise anyone what they should or shouldn't use. Otherwise, its just like throwing out.. "GT30R" and not saying anything else, like many of the others do on here.

Be specific, (or at least reasonably specific about your statement), or at the very least say "from what I've experienced", or say nothing..

marvel1988

Ok but will out be the same for a single