heads and cam dyno results.
Thread Starter
Racer
Joined: Jul 2005
Posts: 433
Likes: 0
From: Houston tx
heads and cam dyno results.
I have a 2001 Z06 with the following mods
tsp stage 2.5 ls6 heads
LG g5x1 cam 228-232 578 581 114
TPIS headers hi, flow cats and xpipe
stock ti catback
ls6 intake
stock tb
vararam intake
ls7 clutch
dte stage II rear with 3.90 gears
dyno tube
max numbers
414hp 373tq
any thoughts?
I really wanted a lot more TQ and a few more hp.
420/400 and i would have been really happy.
Vince
tsp stage 2.5 ls6 heads
LG g5x1 cam 228-232 578 581 114
TPIS headers hi, flow cats and xpipe
stock ti catback
ls6 intake
stock tb
vararam intake
ls7 clutch
dte stage II rear with 3.90 gears
dyno tube
max numbers
414hp 373tq
any thoughts?
I really wanted a lot more TQ and a few more hp.
420/400 and i would have been really happy.
Vince
Drifting
Joined: Apr 2004
Posts: 1,530
Likes: 250
From: CT
I wonder how much the 3:90s hurt you on the dyno. The important thing is how it drives and feels on the street. Sometimes wierd things happen on the dyno, at least thats been my experience.
Good luck and enjoy the power.
Good luck and enjoy the power.
Burning Brakes
Joined: Nov 2003
Posts: 785
Likes: 0
From: Hutschenhausen
My C5 G5X2, LS6 intake, LT's, TB, & intake only numbers were 400/390 at LG this Jan. Yours do sound 20-30 off?
Is the Z06 the same bottom end? Maybe when you mod a C5 and Z06 they end up about the same.
Not an expert,
Smash
Is the Z06 the same bottom end? Maybe when you mod a C5 and Z06 they end up about the same.
Not an expert,
Smash
Racer
Joined: Feb 2004
Posts: 464
Likes: 4
From: Westland MI
I make very similar power with the following mods on my '99 Convertible:
Livernois Motorsports Stage 1 LS6 Heads
224/228 114 Cam
LG Motorsports Headers and Offroad xpipe
Stock TI Catback
LS6 Intake
Stock TB
Halltech Stinger
SPEC Stage 2 Clutch
4.10 Gears
My car made 420/389 RWTQ
-Rick
Livernois Motorsports Stage 1 LS6 Heads
224/228 114 Cam
LG Motorsports Headers and Offroad xpipe
Stock TI Catback
LS6 Intake
Stock TB
Halltech Stinger
SPEC Stage 2 Clutch
4.10 Gears
My car made 420/389 RWTQ
-Rick
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Safety Car
Joined: May 2000
Posts: 4,828
Likes: 357
From: Albuquerque NM
I made 422/398 sae with stage IIx 5.3 heads and a much smaller (218/218, .561"/.561", 114 LSA) cam. The small things make a difference: No cats on 3" midpipe, underdrive accessory pulley, self ported TB, and an aluminum lightweight flywheel. With these additional mods I'd bet you'd be at 435/410
Melting Slicks
Joined: Jul 2002
Posts: 2,722
Likes: 64
From: DFW Texas
CI 7-8 Veteran
CI 8 Car Show Winner
St. Jude Donor '07
somthing does seem off i have just about the exact cam, G5X1-E but with AFR 205 milled to 59cc. along with very similar other bolt-on's and made 458/423....see sig for specific bolt-on's
Instructor
Joined: Jun 2006
Posts: 179
Likes: 0
From: Houston TX
I would like to blame the headers for your low TQ numbers. I am selling my TPIS' and getting LG's. The TPIS were awsome when they came out in the late 90's but not so much anymore. Should pick up 10-15RWHP and 15-20 RWTQ with some LG's or AR headers!
Congrats on your new combo, I bet she is great to drive!!
J.R.
Congrats on your new combo, I bet she is great to drive!!
J.R.
Melting Slicks
Joined: Aug 2002
Posts: 2,737
Likes: 2
From: California USA
Vince,
You got the right stuff. But, I see you have a Vararam. They do bad things to A/F. Have you checked out a datalog?
You got the right stuff. But, I see you have a Vararam. They do bad things to A/F. Have you checked out a datalog?
Originally Posted by vince3
I have a 2001 Z06 with the following mods
tsp stage 2.5 ls6 heads
LG g5x1 cam 228-232 578 581 114
TPIS headers hi, flow cats and xpipe
stock ti catback
ls6 intake
stock tb
vararam intake
ls7 clutch
dte stage II rear with 3.90 gears
dyno tube
max numbers
414hp 373tq
any thoughts?
I really wanted a lot more TQ and a few more hp.
420/400 and i would have been really happy.
Vince
tsp stage 2.5 ls6 heads
LG g5x1 cam 228-232 578 581 114
TPIS headers hi, flow cats and xpipe
stock ti catback
ls6 intake
stock tb
vararam intake
ls7 clutch
dte stage II rear with 3.90 gears
dyno tube
max numbers
414hp 373tq
any thoughts?
I really wanted a lot more TQ and a few more hp.
420/400 and i would have been really happy.
Vince
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
One or two explanations on your torque shortage could be 1. Not enought compression. 2. Low DCR caused by cam design. Do you know what the heads (or if?) were milled to? What head gaskets were used,etc. to find overall compression.
Le Mans Master
Joined: Nov 2003
Posts: 8,004
Likes: 250
From: Tampa Fl
St. Jude Donor '12-'13-'14
Those numbers are right about where Id guess Id be with my set up.
I drove my car today, and slapped one of those little $50,000.00 Lotus cars around
Over 400 RWHP is alot for the street
I drove my car today, and slapped one of those little $50,000.00 Lotus cars around
Over 400 RWHP is alot for the street
Thread Starter
Racer
Joined: Jul 2005
Posts: 433
Likes: 0
From: Houston tx
heads are 64cc
they have a little bit bigger valves than stock.
i think they are 2.04 and 1.62?
stock head gaskets.
at the dyno we got the A/F to around 13
so i guess i should do a compression check?
they have a little bit bigger valves than stock.
i think they are 2.04 and 1.62?
stock head gaskets.
at the dyno we got the A/F to around 13
so i guess i should do a compression check?
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
Originally Posted by vince3
heads are 64cc
they have a little bit bigger valves than stock.
i think they are 2.04 and 1.62?
stock head gaskets.
at the dyno we got the A/F to around 13
so i guess i should do a compression check?
they have a little bit bigger valves than stock.
i think they are 2.04 and 1.62?
stock head gaskets.
at the dyno we got the A/F to around 13
so i guess i should do a compression check?
No, if you were leaking compression, there would be less HP as well. It's kind of a matter of valve events and dynamic compression. You're setup should have right at 10.5-1 static CR. Also your cam could have been installed slightly retarded. Some times that gives you slightly higher peak HP #'s at the expense of torque. Did you degree the cam when you installed it?
with a set of 1.8 Crane roller rockers 918 or 921 springs.
Thread Starter
Racer
Joined: Jul 2005
Posts: 433
Likes: 0
From: Houston tx
i dont know.
a shop did it.
i could ask them though.
i fast 90 would be great, but do you think the ls6 intake is the weak point holding me back? i was thinking about porting the stock tb.
Vince
a shop did it.
i could ask them though.
i fast 90 would be great, but do you think the ls6 intake is the weak point holding me back? i was thinking about porting the stock tb.
Vince
