ddcarter

iTrader: (14)

I built a LS7 and planned on going N/A. I have since changed my mind and would like to add a supercharger. Can I run low boost like 4.5# like the base kit?

9sectruck

iTrader: (9)

there are a couple guys on here running boost on 11 plus comp. a buddy of mine is one 11.3 10psi pump gas and alot of meth!! (a very good tune) dont get greedy at 5psi it will really start putting u in the seat at 10psi here we go holed on>

Mr.Big

yes, you'll just run less boost, really no big deal...

vaticano

iTrader: (8)

I run 12#'s at 11.3:1 with E-85, no meth, and lots of timing.
On the stock short block.

venom ws7

iTrader: (13)

A member here is running 347ci 11:3 comp with 14psi 830rwhp
I sure with 427ci and 5psi you can achive over 650rwhp

Is it a build bottom or stock??

ddcarter

iTrader: (14)

Full on build, Lunati crank and rods, Manley pistons, PRC LS7 heads, full studs, Morel lifters etc. Changed mind but really do not want to pull pistons.

venom ws7

iTrader: (13)

Just run it 550+rwhp N/A For while and save some money for low compression pistons and F1R.

This way you can enjoy and experience N/A and FI Power.

good luck man

EPP

iTrader: (22)

Yes you can add a ProCharger to your combination, and as long as you don't go crazy with the boost you shouldn't have any problems. A centrifical supercharger such as a ProCharger doesn't require the compression ratio to be as low as a positive displacement supercharger does.
We ran into a very similar situation where we had a customer who had us build him an engine for N/A, then he had us install an APS twin turbo kit the next year. Here is a link to it. http://www.exoticperformanceplus.com...Car.php?car=39

Give me a call at 260 244-4808 for a great price on an ATI ProCharger.
Thanks. Bob

Rickys S/C Z28

iTrader: (13)

man i would love to have a big CI high comp boosted motor!

Mike@Diablosport

iTrader: (2)

Nice!!

ddcarter

iTrader: (14)

Why does your link keep repeating itself?
Dont need alot of boost and dont want to have to run fuel I can not get at any station. It may be asking alot.

DanWS6

iTrader: (5)

Your car amazes me.

ddcarter

iTrader: (14)

Would there be any benifit to lowering it to 10.9:1?

vaticano

iTrader: (8)

A bit more boost or timing.

ddcarter

iTrader: (14)

Would it be worth $1000?

vaticano

iTrader: (8)

Not likely.

ddcarter

iTrader: (14)

Anyone else want to weigh in on this? Please

elias_799

iTrader: (8)

i was going to recommend new heads with bigger cc combustion chamber but the ls7 comes with 70cc chambers from the factory.

does anybody make heads for the ls7 with bigger combustion chambers then stock ?

at 11.5:1 cr there is not really much room for error with FI, thats why i have 8.6:1

ddcarter

iTrader: (14)

I dont really want to go with that low of compression. I can get some 10.9:1 pistons or 9.2:1 but dont want to run a ton of boost.

2001WS6Vert

I would get a blower setup that would have the ability to feed the 427 if you decide later down the road that you want to crank up the boost, i.e. lower compression, race fuel, e85 etc.. Until then just run larger pulleys to keep the boost in check.