Broken Chain = New Crate LS6
06-23-2010, 04:46 AM
#1
Drifting
Thread Starter
Broken Chain = New Crate LS6
I broke a timing chain at the track recently on my H/C/I LS6 and for a couple of reasons Ive decided to replace my hurt motor with a new crate LS6 long block - rather than repair.
Heres where I was hoping for some input..
The current motor is (was) equipped with a FAST 90 /90, Kooks LTs (1-7/8") and off-road pipes, and Borla Stinger that I'm thinking of re-using on the new motor - in part because I already own the stuff. I may do a cam kit later, but not now (i think).
I wonder what "area under the curve" will look like with this set-up, and what type of performance and drive-ability I can expect compared to a stock LS6 install (factory intake / exhaust). Im not so much worried about the gains that these components may produce, as much as I am about loosing some hp/tq with these parts installed on an otherwise stock LS6. The car is used mostly for occasional road course HPDEs (nothing too serious), along with some weekend street driving. It will be properly dyno tuned.
Thoughts ?
Heres where I was hoping for some input..
The current motor is (was) equipped with a FAST 90 /90, Kooks LTs (1-7/8") and off-road pipes, and Borla Stinger that I'm thinking of re-using on the new motor - in part because I already own the stuff. I may do a cam kit later, but not now (i think).
I wonder what "area under the curve" will look like with this set-up, and what type of performance and drive-ability I can expect compared to a stock LS6 install (factory intake / exhaust). Im not so much worried about the gains that these components may produce, as much as I am about loosing some hp/tq with these parts installed on an otherwise stock LS6. The car is used mostly for occasional road course HPDEs (nothing too serious), along with some weekend street driving. It will be properly dyno tuned.
Thoughts ?
Last edited by C5ZEE06; 11-06-2011 at 08:38 AM.
06-23-2010, 09:52 AM
#2
Drifting
With 346 c.i. and 10.8 to 1 and a stock LS6 cam you will probably find some torque loss with the 1 7/8 in headers.
I believe Nick at ARH has some data on the exact loss between 1 3/4 and 1 7/8. You may also want to try search on LS1tech as they do quite a bit of testing on that forum.
I believe Nick at ARH has some data on the exact loss between 1 3/4 and 1 7/8. You may also want to try search on LS1tech as they do quite a bit of testing on that forum.
06-23-2010, 10:00 AM
#3
Pro
Member Since: Oct 2003
Location: Churchville MD
Posts: 705
Likes: 0
Received 0 Likes
on
0 Posts
I broke a timing chain at the track recently and for a couple of reasons Ive decided to replace my hurt motor with a new crate LS6 long block - rather than repair.
Heres where I was hoping for some input..
The current motor is (was) equipped with a FAST 90 /90, Kooks LTs (1-7/8") and off-road pipes, and Borla Stinger that I'm thinking of re-using on the new motor - in part because I already own the stuff. I may do a cam kit later, but not now (i think).
I wonder what "area under the curve" will look like with this set-up, and what type of performance and drive-ability I can expect compared to a stock LS6 install (factory intake / exhaust). Im not so much worried about the gains that these components may produce, as much as I am about loosing some hp/tq with these parts installed on an otherwise stock LS6. The car is used mostly for occasional road course HPDEs (nothing too serious), along with some weekend street driving. It will be properly dyno tuned.
Thoughts ?
Heres where I was hoping for some input..
The current motor is (was) equipped with a FAST 90 /90, Kooks LTs (1-7/8") and off-road pipes, and Borla Stinger that I'm thinking of re-using on the new motor - in part because I already own the stuff. I may do a cam kit later, but not now (i think).
I wonder what "area under the curve" will look like with this set-up, and what type of performance and drive-ability I can expect compared to a stock LS6 install (factory intake / exhaust). Im not so much worried about the gains that these components may produce, as much as I am about loosing some hp/tq with these parts installed on an otherwise stock LS6. The car is used mostly for occasional road course HPDEs (nothing too serious), along with some weekend street driving. It will be properly dyno tuned.
Thoughts ?
06-23-2010, 11:35 AM
#4
I have a stock longblock (LS1) and 1 3/4" primary headers, no cats, and 2.5" corsa indy pace car exhaust. I noticed torque loss down real low, but it was easy to live with because the torque increase from 3k up was enormous.
I wouldn't worry about it too much if I were you, and you could always go to smaller primary headers if you are concerned about it.
I wouldn't worry about it too much if I were you, and you could always go to smaller primary headers if you are concerned about it.
07-17-2010, 09:39 AM
#5
Drifting
Thread Starter
well turned-out damage was manageable so decided to rebuild. I've already installed a new LS6 crate so.....anyone need a fresh H/C/I LS6 long-block ?
SOLD !
SOLD !
Last edited by C5ZEE06; 11-06-2011 at 08:43 AM.
