Got torque? 370/AI/LS3 intake/4L60E
11-17-2013, 05:43 PM
#26
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So in this particular case are you saying the same heads, cam, and intake were used on the 370 as well as the LS1? If so I find that extremely impressive!! I'm running the same HCI combo on my 370 LQ9 that I had on my LS1 (with a little more compression and slightly bigger cam) and am looking forward to hitting the same dyno that I had my old LS1 setup on to see the exact difference. I'm hoping another 40-50 hp
11-18-2013, 02:33 PM
#27
Why I thought you'd never ask!!!
No no no....lol
His old set-up was a 346 stock bottom end LS1. Ported 853 heads and a 224/232 113lsa cam IIRC.
We built him a forged 370 out of a iron truck block(LQ4) while re-using the stock crank. Forged rods&pistons along with a custom cam, CNC ported LS3 castings and a stock LS3 intake.
The headers were the same, the true duals were the same, rear end, rear gear, tires&wheels, and transmission were the same as the 346 LS1.
The stall converter and engine were the only things that changed and the gains as you can see that resulted from the engine change.
80rwhp/80rwtq SAE corrected gains for almost the entire operating range with heads that "can't make torque" or only make "peak dyno numbers" is damn impressive to me. While gaining only 24 cubic inches and in comparison to an engine that already had ported heads and a camshaft installed.
So in this particular case are you saying the same heads, cam, and intake were used on the 370 as well as the LS1? If so I find that extremely impressive!! I'm running the same HCI combo on my 370 LQ9 that I had on my LS1 (with a little more compression and slightly bigger cam) and am looking forward to hitting the same dyno that I had my old LS1 setup on to see the exact difference. I'm hoping another 40-50 hp
His old set-up was a 346 stock bottom end LS1. Ported 853 heads and a 224/232 113lsa cam IIRC.
We built him a forged 370 out of a iron truck block(LQ4) while re-using the stock crank. Forged rods&pistons along with a custom cam, CNC ported LS3 castings and a stock LS3 intake.
The headers were the same, the true duals were the same, rear end, rear gear, tires&wheels, and transmission were the same as the 346 LS1.
The stall converter and engine were the only things that changed and the gains as you can see that resulted from the engine change.
80rwhp/80rwtq SAE corrected gains for almost the entire operating range with heads that "can't make torque" or only make "peak dyno numbers" is damn impressive to me. While gaining only 24 cubic inches and in comparison to an engine that already had ported heads and a camshaft installed.
11-23-2013, 02:27 PM
#28
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Why I thought you'd never ask!!!
No no no....lol
His old set-up was a 346 stock bottom end LS1. Ported 853 heads and a 224/232 113lsa cam IIRC.
We built him a forged 370 out of a iron truck block(LQ4) while re-using the stock crank. Forged rods&pistons along with a custom cam, CNC ported LS3 castings and a stock LS3 intake.
The headers were the same, the true duals were the same, rear end, rear gear, tires&wheels, and transmission were the same as the 346 LS1.
The stall converter and engine were the only things that changed and the gains as you can see that resulted from the engine change.
80rwhp/80rwtq SAE corrected gains for almost the entire operating range with heads that "can't make torque" or only make "peak dyno numbers" is damn impressive to me. While gaining only 24 cubic inches and in comparison to an engine that already had ported heads and a camshaft installed.
No no no....lol
His old set-up was a 346 stock bottom end LS1. Ported 853 heads and a 224/232 113lsa cam IIRC.
We built him a forged 370 out of a iron truck block(LQ4) while re-using the stock crank. Forged rods&pistons along with a custom cam, CNC ported LS3 castings and a stock LS3 intake.
The headers were the same, the true duals were the same, rear end, rear gear, tires&wheels, and transmission were the same as the 346 LS1.
The stall converter and engine were the only things that changed and the gains as you can see that resulted from the engine change.
80rwhp/80rwtq SAE corrected gains for almost the entire operating range with heads that "can't make torque" or only make "peak dyno numbers" is damn impressive to me. While gaining only 24 cubic inches and in comparison to an engine that already had ported heads and a camshaft installed.
11-23-2013, 11:24 PM
#31
I feel it's pretty obvious that our dyno isn't a numbers dyno because it's honest with the correction factors it generates. Which is why I posted the uncorrected numbers. I should go back and try to dig up what the Temp, DA and Barometric pressure was that day as well.
Look at the original combination. 346 LS1, CNC ported 853 heads, 224/232 cam.
It made 385rwhp on our dyno.
I guess the cam guy who designed that cam should take a few pointers from Bozz Hawg as well. Most would consider a mid 220/230 cam and CNC ported heads to make 400rwhp+ pretty easily on a Dyno Jet.
Not on ours. Next thing you know it will be our tuning sucks.
Last edited by Sales@Tick; 11-23-2013 at 11:29 PM.
02-02-2015, 02:01 PM
#35
But seriously, great job Martin.
03-10-2015, 12:04 PM
#38
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Old Thread Revival!!
Martin@Tick I am building this exact combo for my 98 T/A I am needing full camshaft specs if you can message me or post here please. I have followed this build for quite some time now!
Martin@Tick I am building this exact combo for my 98 T/A I am needing full camshaft specs if you can message me or post here please. I have followed this build for quite some time now!
