Concerned With Torque Numbers?
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Concerned With Torque Numbers? Car is 97 Z28 A4 with 75,500 miles on it.
Mods are:
- Pacesetter 1 3/4in Longtubes into 3in collector
- Pacesetter 3in ORY
- Exhaust IS dumped right after y-pipe with custom turndown
- Underdrive crank pulley
Torque was only 295 to the rear wheels.
Now recently I have added an SLP airfoil (every little bit helps lol), full lingenfelter cold air intake and the 1LE elbow upgrade. I'm curious to know if my torque numbers are low, about right, would be improved with full exhaust? If full exhaust I'm pretty set on GMMG with the slash tips, thoughts? Also will be getting in a 160 degree stat, have the fan tuned to turn on at 180 degrees like suggested with the SLP 160 degree stat.
I would have to think I'm over 300+ rear wheel torque now no? Alot of numbers I've seen most people are 320's on torque etc or higher! Maybe my lack of an exhaust is really that much of a killer!
Thanks!
Mods are:
- Pacesetter 1 3/4in Longtubes into 3in collector
- Pacesetter 3in ORY
- Exhaust IS dumped right after y-pipe with custom turndown
- Underdrive crank pulley
Torque was only 295 to the rear wheels.
Now recently I have added an SLP airfoil (every little bit helps lol), full lingenfelter cold air intake and the 1LE elbow upgrade. I'm curious to know if my torque numbers are low, about right, would be improved with full exhaust? If full exhaust I'm pretty set on GMMG with the slash tips, thoughts? Also will be getting in a 160 degree stat, have the fan tuned to turn on at 180 degrees like suggested with the SLP 160 degree stat.
I would have to think I'm over 300+ rear wheel torque now no? Alot of numbers I've seen most people are 320's on torque etc or higher! Maybe my lack of an exhaust is really that much of a killer!
Thanks!
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From: Nebraska
That's pretty on my par with what an auto LT1 will put down. My car stock with just the muffler cut off dyno'd 281/317 on a dynojet. That's a 6-speed car though, they always dyno higher. With bolt ons it dyno'd 294/324. Don't get too caught up on numbers. An auto car has more drivetrain loss and will always dyno lower. Full exhaust would help a bit though.
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That's pretty on my par with what an auto LT1 will put down. My car stock with just the muffler cut off dyno'd 281/317 on a dynojet. That's a 6-speed car though, they always dyno higher. With bolt ons it dyno'd 294/324. Don't get too caught up on numbers. An auto car has more drivetrain loss and will always dyno lower.
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I agree dyno numbers are just numbers. What it traps at the strip tells the story. Take it to the strip and run low-mid 13s !
Also I think it is retarded that basically all long tube headers for the lt1 are 1 3/4 diameter instead of 1 5/8. That's why I went with mac mid headers because they are 1 5/8. Dyno's have shown them making 310rw torque at 1800-2000 rpm because they flow good and they are small enough diameter to keep exhaust velocity good. 1 3/4 are overkill and you lose torque on a bolt on lt1. With ported heads and a cam with 450+hp then I would think 1 3/4 headers would be of benefit. Just my opinion though.
Also I think it is retarded that basically all long tube headers for the lt1 are 1 3/4 diameter instead of 1 5/8. That's why I went with mac mid headers because they are 1 5/8. Dyno's have shown them making 310rw torque at 1800-2000 rpm because they flow good and they are small enough diameter to keep exhaust velocity good. 1 3/4 are overkill and you lose torque on a bolt on lt1. With ported heads and a cam with 450+hp then I would think 1 3/4 headers would be of benefit. Just my opinion though.
Thread Starter
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From: Lincoln, Nebraska
Thread Starter
TECH Fanatic
iTrader: (3)
Joined: Jan 2006
Posts: 1,801
Likes: 0
From: Lincoln, Nebraska
I agree dyno numbers are just numbers. What it traps at the strip tells the story. Take it to the strip and run low-mid 13s !
Also I think it is retarded that basically all long tube headers for the lt1 are 1 3/4 diameter instead of 1 5/8. That's why I went with mac mid headers because they are 1 5/8. Dyno's have shown them making 310rw torque at 1800-2000 rpm because they flow good and they are small enough diameter to keep exhaust velocity good. 1 3/4 are overkill and you lose torque on a bolt on lt1. With ported heads and a cam with 450+hp then I would think 1 3/4 headers would be of benefit. Just my opinion though.
Also I think it is retarded that basically all long tube headers for the lt1 are 1 3/4 diameter instead of 1 5/8. That's why I went with mac mid headers because they are 1 5/8. Dyno's have shown them making 310rw torque at 1800-2000 rpm because they flow good and they are small enough diameter to keep exhaust velocity good. 1 3/4 are overkill and you lose torque on a bolt on lt1. With ported heads and a cam with 450+hp then I would think 1 3/4 headers would be of benefit. Just my opinion though.
I just have the pacesetter long tubes I assumed 1 3/4?
Yup, One guy at a muffler shop installed 1 3/4 long tube on his stock LT, no bolt ons, and before he could fry the tires, after it would not, and he was so pissed he sold the car, and not he did not get it tuned..