Results 1 to 20 of 34
-
10-20-2011, 03:12 AM #1
whats the most compression allowable for 5psi?
just wondering how high the compression can safely be to run 5psi on a supercharger?
-
10-20-2011, 07:10 AM #2
Well, there's so many questions.
What fuel is going to be used?
Is it a race car, or daily driver?
Is it going to be intercooled, or not?
Let's start there.
-
10-20-2011, 07:20 AM #3
daily driver, 93 octane,i would prefer intercooled, just wondering if my current setup is to high for a supercharger, i think i am at 10-11 on compression, more like 10 i think.
-
10-20-2011, 07:58 AM #4
Your compression is just fine. Personally, without an intercooler, I wouldn't go much past 5-6 psi with 93 octane. If you have an intercooler, I wouldn't go much past 8 psi. My '01 WS6 had an 8 psi ProCharger set up(intercooled), and had no issues.
If I am not mistaken, your compression ratio is 10.5:1.
I hope this helps!
-
10-20-2011, 08:02 AM #5
well it does help, but...my car is a 2005 LQ4 with ported and polished stage 3 LS6 heads with a 64cc combustion chamber, and a TSP torquer V2 cam, 595/598 lift, so i think the compression is up there, it was 9 when it was stock, not really sure what it is now, just guessing, thanks
-
10-20-2011, 09:02 AM #6
-
10-20-2011, 09:07 AM #7
that sounds good man, thanks. so i should be good to run 5 psi then? looking for that magical 500 whp mark, currently at 442, and i dont want to do nitrous or a turbo, just dont like either really.
-
10-20-2011, 10:05 AM #8
-
10-20-2011, 10:26 AM #9
- Join Date
- Mar 2006
- Location
- West Virginia
- Age
- 44
- Posts
- 763
Pewter- Y2K WS6
What king of super charger are you going with then 5 psi should put you well into mid 5's with that setup.
-
10-20-2011, 10:33 AM #10
Not sure yet, wanted to make sure I could run a supercharger with my current heads and not blow it up, I still have the factory 317 heads as well, I hear a lot of good talk about procharger but only if I can safely do it.
-
10-20-2011, 10:40 AM #11
- Join Date
- Mar 2006
- Location
- West Virginia
- Age
- 44
- Posts
- 763
Pewter- Y2K WS6
They supercharge ls7's your cam selection may not be ideal but should t allow too much. Blow by your 112 lsa right the torqued v2 in my friends car is.
-
10-20-2011, 11:00 AM #12
-
10-20-2011, 11:37 AM #13
Yes its a 112 lsa, and I know nothing about superchargers so your advice and help is greatly appreciated.
-
10-21-2011, 06:36 AM #14
Also, one thing that I always forget! If you install an Alky injection kit along with your supercharger, you can push boost a little more safely since it drastically lowers your AICT(air intake charge temp), which will prevent detonation.
-
10-21-2011, 06:46 AM #15
cool, thanks. i am just thinking about now, still afraid of blowing it up if i go s/c or turbo, would thicker head gaskets help any?
-
10-21-2011, 06:50 AM #16
-
10-21-2011, 06:56 AM #17
-
10-21-2011, 10:27 AM #18
At 8psi with a completely stock motor (cam/heads) I made 501rwhp with the Procharger, intercooler, and AlkyControl methanol kit. I am going to suggest you build the car up first (suspension, transmission, rear end) before adding power like that.
-
10-21-2011, 12:50 PM #19
Yea your right 35th, already got most of the suspension replaced with umi stuff, still need shocks and sway bars replaced.I won't get into s/c seriously till spring time I guess.may go with a differant cam and still need to do 42# injectors at least, fuel pump was already replaced with a walbro 255 ( I think that's what he said-have to check my paperwok to verify). I like the power now but I think I'm addicted-gotta have a little more.
-
10-21-2011, 01:09 PM #20
I'm running 62-lb injectors.
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
6.0 iron block overbore allowable
By Larry Woodfin in forum Internal EngineReplies: 1Last Post: 04-03-2009, 01:12 PM -
compression
By emotionalpiracy in forum Internal EngineReplies: 5Last Post: 05-29-2008, 11:16 PM -
5psi STS stock turbo vs GTturbo info...
By Rich L in forum Forced InductionReplies: 9Last Post: 07-09-2007, 08:14 AM -
At what compression
By Mr. Luos in forum Internal EngineReplies: 8Last Post: 06-24-2006, 08:05 AM -
5psi = ??
By MaverickWH in forum Rocky Mountain MembersReplies: 9Last Post: 06-11-2006, 10:22 AM
Bookmarks