(Question) How to increase Acceleration/Torque?
Pro
Joined: Oct 2005
Posts: 738
Likes: 2
From: Richmond VA
Thread Starter
Pro
Joined: Jul 2007
Posts: 708
Likes: 0
From: Medicine Hat Alberta
Haha thanks for all the help guys! I realize now that to get accleration, a bi-product would have to be top speed no doubt about it...but who cres I guess lol.
Oh and btw 130 KMh here is like.....fast lol our highway limit if 110 KMh .
Oh and btw 130 KMh here is like.....fast lol our highway limit if 110 KMh .
Pro
Joined: Sep 2003
Posts: 731
Likes: 0
From: Calgary Alberta
Go for gears. You'll lose out on the top end, but you'll get to your top end alot quicker. I went from 2:73's to 3:42's and it felt like a 75 hp gain. Gears are also alot more fun if you're a light to light person.
By the way, I'm always in somewhere Alberta, I work in the patch!
By the way, I'm always in somewhere Alberta, I work in the patch!
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
We all had "questions" before we found the right vette.
funny part is ppl ask lots of questions about How to increase HP or TQ, How to do this or that.
Then they GET in a vette, and push that right peddle to the floor, and
then 
HOLEY Chit man. May be I dont need that EXTRA power.No matter what you get you will be walking around all the time with a
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Melting Slicks
Joined: Jun 2000
Posts: 2,161
Likes: 5
From: Knoxville TN
simple method, more cubic inches, larger engine=more tq, lower cost method, start with changing rear gears, won't "add" more tq, but will the tq you have to get off the line quicker, next change cam, than LT headers
Race Director
Joined: Mar 2007
Posts: 18,308
Likes: 21
From: Marlton. Increasing performance one speeding ticket at a time! NJ
All joking aside..........
HP is exactly equal to torque x RPM/5250, nothing more. All else equal, if you increase HP on an LS1/LS6, you're also increasing torque. If you ever see a dyno plot, you'll see that the torque curve and the hp curve cross exactly at 5250 RPM. You can't have one without the other. This is at the engine level.
At the rear wheels, things are slightly different. Cars use a transmission to lower RPM's and then there is a rear-end gearing to lower that even further. Gears work to reduce RPM, but increase torque, or the opposite. For example, first gear on an automatic is 3.06 (from memory) and the rear end is lets say 3.15. That means RPM's are being reduced by (3.06 x 3.15=) 9.639x, but torque is being multiplied at the rear wheels by 9.639 times. That is why, as most have suggested here, that by changing your rear end ratio to a higher number, you'll increase the torque applied to the wheels. Going to 3.73's would increase rear wheel torque by 18%, without ever having touched the engine.
HP is exactly equal to torque x RPM/5250, nothing more. All else equal, if you increase HP on an LS1/LS6, you're also increasing torque. If you ever see a dyno plot, you'll see that the torque curve and the hp curve cross exactly at 5250 RPM. You can't have one without the other. This is at the engine level.
At the rear wheels, things are slightly different. Cars use a transmission to lower RPM's and then there is a rear-end gearing to lower that even further. Gears work to reduce RPM, but increase torque, or the opposite. For example, first gear on an automatic is 3.06 (from memory) and the rear end is lets say 3.15. That means RPM's are being reduced by (3.06 x 3.15=) 9.639x, but torque is being multiplied at the rear wheels by 9.639 times. That is why, as most have suggested here, that by changing your rear end ratio to a higher number, you'll increase the torque applied to the wheels. Going to 3.73's would increase rear wheel torque by 18%, without ever having touched the engine.
Thread Starter
Pro
Joined: Jul 2007
Posts: 708
Likes: 0
From: Medicine Hat Alberta
All joking aside..........
HP is exactly equal to torque x RPM/5250, nothing more. All else equal, if you increase HP on an LS1/LS6, you're also increasing torque. If you ever see a dyno plot, you'll see that the torque curve and the hp curve cross exactly at 5250 RPM. You can't have one without the other. This is at the engine level.
At the rear wheels, things are slightly different. Cars use a transmission to lower RPM's and then there is a rear-end gearing to lower that even further. Gears work to reduce RPM, but increase torque, or the opposite. For example, first gear on an automatic is 3.06 (from memory) and the rear end is lets say 3.15. That means RPM's are being reduced by (3.06 x 3.15=) 9.639x, but torque is being multiplied at the rear wheels by 9.639 times. That is why, as most have suggested here, that by changing your rear end ratio to a higher number, you'll increase the torque applied to the wheels. Going to 3.73's would increase rear wheel torque by 18%, without ever having touched the engine.
HP is exactly equal to torque x RPM/5250, nothing more. All else equal, if you increase HP on an LS1/LS6, you're also increasing torque. If you ever see a dyno plot, you'll see that the torque curve and the hp curve cross exactly at 5250 RPM. You can't have one without the other. This is at the engine level.
At the rear wheels, things are slightly different. Cars use a transmission to lower RPM's and then there is a rear-end gearing to lower that even further. Gears work to reduce RPM, but increase torque, or the opposite. For example, first gear on an automatic is 3.06 (from memory) and the rear end is lets say 3.15. That means RPM's are being reduced by (3.06 x 3.15=) 9.639x, but torque is being multiplied at the rear wheels by 9.639 times. That is why, as most have suggested here, that by changing your rear end ratio to a higher number, you'll increase the torque applied to the wheels. Going to 3.73's would increase rear wheel torque by 18%, without ever having touched the engine.
Do you teach for a living?
Jacks996
Joined: Sep 2005
Posts: 8,667
Likes: 12
From: eagle mountain lake tx
Cruise-In VIII Veteran
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
The key to good acceleration is getting torque in the bottom end of the RPM range. Torque is added by increasing compression and Airflow through the engine. Without getting into serious engine modifications or FI, here's my suggestions:
- Long tube equal length headers. the longer the pipes the lower in the RPM range you'l benifit.
- Aftermarket Camshaft.
- Aftermarket exhaust (including high flow cats)
- Underdrive pulley
- Good intake setup (ported or larger TB is reccomended)
Yes, but if you claim it, modding your vette is kind of pointless.
- Long tube equal length headers. the longer the pipes the lower in the RPM range you'l benifit.
- Aftermarket Camshaft.
- Aftermarket exhaust (including high flow cats)
- Underdrive pulley
- Good intake setup (ported or larger TB is reccomended)
Yes, but if you claim it, modding your vette is kind of pointless.
