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-   -   11.0:1 compression and boost??? (https://www.performancetrucks.net/forums/forced-induction-159/11-0-1-compression-boost-421922/)

TXsilverado 07-23-2008 09:07 AM

11.0:1 compression and boost???
 
not planning anything! just kicking chit around in my head

the forums are slow and im just curious. how would a 11.0:1 compression motor handle 5-7 lbs of boost??? i figure trick kits aughta be hitting the used classifieds soon...not that i have the money for a kit:bang:

school me

trever1t 07-23-2008 09:21 AM

Turbo seems to like less CR than a Posi blower from what I've read, there was just some commentay about this in another thread.

TurboGibbs 07-23-2008 09:26 AM

LOL! I've been kicking around the idea with my 11.5:1:jest:

Thinking of a small turbo that will spool instantly. But like you said, just kicking around the idea.

zippy 07-23-2008 09:28 AM

I know of many boosted LS2's and they are 10.9:1, you should be fine with the correct camshaft and tuning.

TXsilverado 07-23-2008 10:05 AM


Originally Posted by trever1t (Post 3965749)
Turbo seems to like less CR than a Posi blower from what I've read, there was just some commentay about this in another thread.

im afraid of getting too much down low to hook. hopefully ill be making 1.65ish 60' times on motor with my new converter coming in. turbo lag seems benificial to me sometimes.

7845 07-23-2008 10:05 AM

ls2 and ls7 are perfect examples.

TXsilverado 07-23-2008 11:27 AM


Originally Posted by 7845 (Post 3965775)
ls2 and ls7 are perfect examples.

didnt turn my head sideways:D

T-CARDENAS 07-23-2008 11:58 AM

Thatīs good to know because my Denali is 10.5:1 and Iīm planning on getting a supercharger for this thing

Wilde Racing 07-23-2008 12:38 PM


Originally Posted by zippy (Post 3965760)
I know of many boosted LS2's and they are 10.9:1, you should be fine with the correct camshaft and tuning.

That is just it, the tuning needs to be spot on:judge:
But better fuel mileage, more usable power, better street maners.
I'll see how far my 10.1 boosted engine works and report back, although 10.1 is't too high, it is for high hp boosted engines....

Lord Aries 07-23-2008 02:02 PM

I asume this of course would be with Forged P&R's to run that high of a CR??? Along with decent Head Studs & valve springs...


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