stock LS1 boosted. Heads Cam?
Thread Starter
Launching!
Joined: Jul 2011
Posts: 209
Likes: 0
From: Detroit, Michigan
stock LS1 boosted. Heads Cam? The same question asked manny times, I am sorry for bringing up another beaten down topic but I cant seem to find the info I am looking for.
I am thinking about getting some 6.0 heads to drop the compression. I am not sure what cam to use with them. I hear the Ls6 cam is great for these engines boosted. I would like to get above 550hp
Car is a street car running the T-56. I am just looking to do this the most cost effective way and achieve some good numbers. Input would be really helpful
I am thinking about getting some 6.0 heads to drop the compression. I am not sure what cam to use with them. I hear the Ls6 cam is great for these engines boosted. I would like to get above 550hp
Car is a street car running the T-56. I am just looking to do this the most cost effective way and achieve some good numbers. Input would be really helpful
TECH Resident
Joined: Nov 2011
Posts: 916
Likes: 5
From: Las Vegas, NV
Actually the LS9 Cam is a much better choice. You have a few other things that you need to do to switch over to the LS9 Cam, but it's worth it. I have it and I put down 551 rwhp @10 psi with stock LS1 Motor (Rear Mount Turbo T76).
See:
http://www.lingenfelter.com/LPEforum...read.php?t=502
and:
http://forum.grrrr8.net/archive/index.php/t-23278.html
Good info.
See:
http://www.lingenfelter.com/LPEforum...read.php?t=502
and:
http://forum.grrrr8.net/archive/index.php/t-23278.html
Good info.
Last edited by HRHohio; Mar 27, 2012 at 05:31 PM.
Thread Starter
Launching!
Joined: Jul 2011
Posts: 209
Likes: 0
From: Detroit, Michigan
seems like a good option, Your right a bit more to dive into though.
Would it be better to not go with the 6.0 heads and just simply upgrade the cam, maybe a LS6 or after market turbo cam with the factory LS1 heads? I do like the idea of keeping my bottom end power.
More thoughts?
Would it be better to not go with the 6.0 heads and just simply upgrade the cam, maybe a LS6 or after market turbo cam with the factory LS1 heads? I do like the idea of keeping my bottom end power.
More thoughts?
Thread Starter
Launching!
Joined: Jul 2011
Posts: 209
Likes: 0
From: Detroit, Michigan
So far here is what I am thinking for a reliable some what lower cost top end. I would love to know if anyone is running a similar setup or knows if the combination will be affective.
LQ4 heads
LS6 Valve springs
LS6 cam
My thought is the LQ4 heads will drop the compression to the right levels to maintain a stock bottom end, I can get a set for right around $120. The LS6 cam seems to do really well with turbo applications and the LS6 springs would be a no brainer to run with the cam. Should I use the LQ4 valves or run different valves?
What kind of numbers could I see from this setup? Upwards of 600?
LQ4 heads
LS6 Valve springs
LS6 cam
My thought is the LQ4 heads will drop the compression to the right levels to maintain a stock bottom end, I can get a set for right around $120. The LS6 cam seems to do really well with turbo applications and the LS6 springs would be a no brainer to run with the cam. Should I use the LQ4 valves or run different valves?
What kind of numbers could I see from this setup? Upwards of 600?
I ran the 317 heads and a LS6 cam on my last twin turbo setup. I would not do it again though.
My 317 heads had the chamber's CNC'd to 79cc to drop the CR way down. I believe I was 8:7:1. That low of cr plus the LS6 cam made the car feel slugglish out of boost. The LS6 cam is weak below 4500. After 4500 it takes off. If top end power is your goal then the LS6 cam is for you.
I made 603/600 with this setup at 14psi (forged pistons & rods) 347cid, thru a 4L80e unlocked. 93 octane, no meth.
My 317 heads had the chamber's CNC'd to 79cc to drop the CR way down. I believe I was 8:7:1. That low of cr plus the LS6 cam made the car feel slugglish out of boost. The LS6 cam is weak below 4500. After 4500 it takes off. If top end power is your goal then the LS6 cam is for you.
I made 603/600 with this setup at 14psi (forged pistons & rods) 347cid, thru a 4L80e unlocked. 93 octane, no meth.
Trending Topics
im going with 317 heads and running a torquer v.2 cam with a rearmount 67mm stilll working on the set up now but last year i had the cam and turbo on stock motor and made 475 on 10psi and meth mild tune tho good power without boost and good street driving cam IMO
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tuned by don at slowhawk Thread Starter
Launching!
Joined: Jul 2011
Posts: 209
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From: Detroit, Michigan
im at 575 rwhp 535fttq procharger disc meth and exhaust motor is bone stock tuned by don at slowhawk
I was planning on tuning to 500hp about 7-8psi if I kept the motor completely stock with the turbo, but if I do the heads cam, drop the cr and increase some lift, I should be safe to run a bit more.
On The Tree
Joined: Feb 2011
Posts: 102
Likes: 0
From: leominster ma
Those are good numbers. How long have you been running at that hp level? Is it a street car?
I was planning on tuning to 500hp about 7-8psi if I kept the motor completely stock with the turbo, but if I do the heads cam, drop the cr and increase some lift, I should be safe to run a bit more.
I was planning on tuning to 500hp about 7-8psi if I kept the motor completely stock with the turbo, but if I do the heads cam, drop the cr and increase some lift, I should be safe to run a bit more.
9 Second Club
iTrader: (10)
Joined: Apr 2009
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From: Joliet,IL and Las Vegas 50/50
I have a forged ls1 with TU1 cam and 317 heads. My turbo is a TC78 and I have no laggy issues but then again my CR is around 9.5:1 and the tc78 spools pretty damn fast. Even out of boost the car feels pretty responsive.
Every FI thread I go into I see you posting so I have been pretty much been ordering parts for my car off of what you did with yours lol.
Thread Starter
Launching!
Joined: Jul 2011
Posts: 209
Likes: 0
From: Detroit, Michigan
I have a forged ls1 with TU1 cam and 317 heads. My turbo is a TC78 and I have no laggy issues but then again my CR is around 9.5:1 and the tc78 spools pretty damn fast. Even out of boost the car feels pretty responsive.
9 Second Club
iTrader: (10)
Joined: Apr 2009
Posts: 1,230
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From: Joliet,IL and Las Vegas 50/50
I have the patriot gold dual spring kit, stock rockers with trunion upgrade, hardened push rods, ls7 lifters, and stock 317 valves. They seem to be doing well so far and even then I don't have a crazy lift on my cam.
FWIW my tuner who has done quite a few turbo lsx setups in the chicagoland area said that my car is really responsive compared to other cars. Boost pours in quickly and holds it up top decently. Although the TC78 has a 68mm turbine wheel that is limiting me a little up top. I'd rather have a beefy midrange than to have a peeky top end and be laggy.
Last edited by willizm; May 8, 2012 at 03:20 PM.
I am working on a couple off the shelf boost cams for those guys that don't want a custom cam.
I will throw it out that our custom cams are the same price as any of our other cams and we have a package for 679.99.
I will throw it out that our custom cams are the same price as any of our other cams and we have a package for 679.99.
Last edited by Sales@Tick; Aug 11, 2012 at 09:05 PM.
so a decent 22? cam with 317s will perform well then? what size head gasket do you use to keep CR at aroudn 9.5ish so as not to have too much of a CR lose switching to 317s from stock LS1 heads?
My stage one turbo cam would be perfect for you. 226/226 .605/605 114+3.
yeah, i keep running into lobe comments alot latly lol and must say i am learning alot about that.
ok, let say with a properly designed cam with lobes for forced induction, 317 heads, rear turbo, and street manners in mind, the out of boost reponse would not be noticed with such a cam? this is what really is im worried about when switching to 317 heads is the lose of part throttle torque when dropping the CR for boost apps. a larger cam in theory would help this right?
and you are really tempting me with that 226 cam by the way lol
ok, let say with a properly designed cam with lobes for forced induction, 317 heads, rear turbo, and street manners in mind, the out of boost reponse would not be noticed with such a cam? this is what really is im worried about when switching to 317 heads is the lose of part throttle torque when dropping the CR for boost apps. a larger cam in theory would help this right?
and you are really tempting me with that 226 cam by the way lol