Tremec 5 speed
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,373
Likes: 6
From: Baltimore MD
Tremec 5 speed
All you guys that got a tremec 5 speed .64 5th gear ,what size rear do you have and what rpm are you running at 55 or 60 ? I have a 3:55 rear and it runs really good but i could go with a little bigger rear like a 3:75
or 4:10 .anybody with these size rears? I only run 1500 rpms at 55 with mine,i get really alot better gas mileage this way,but it could stand to run a little higher rpm ,due to my cam.
or 4:10 .anybody with these size rears? I only run 1500 rpms at 55 with mine,i get really alot better gas mileage this way,but it could stand to run a little higher rpm ,due to my cam.
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,373
Likes: 6
From: Baltimore MD
I do that at times 
But the police here in maryland are bad and cameras everywhere now 
Maryland has to be one of the worst states for giving speeding tickets out. They have been putting cameras everywhere,but it was only suppose to be at school areas , The state now has a cash cow with these cameras.
But the police here in maryland are bad and cameras everywhere now Maryland has to be one of the worst states for giving speeding tickets out. They have been putting cameras everywhere,but it was only suppose to be at school areas , The state now has a cash cow with these cameras.
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,373
Likes: 6
From: Baltimore MD
Something is weird,you run little over 1500 rpms with a 3:70 rear and i run about the same rpms with a 3:50.Tires cant make up that difference.whats a 350 not much difference then a 3:70?
Drifting
Joined: Mar 2011
Posts: 1,347
Likes: 121
From: Kernersville NC
Tires can make a lot of difference. I have a 3.55 rear end and 255/50-17 tires(27.1" tall). 55mph is about 15-1600 rims. I have a pretty good cam too and I considered a 3.70 gear change to up the rims. I determined that a change to a 255/45-17 tire gave almost the same rpm increase. I found that a change in my timing advance curve made it much better in the 50-55 mph range and iced my issue. If you will pm me your email I will send you a spreadsheet that you can use to compare tire sizes, ratios, speeds, and rpms.
I have a 3.70 rear end that is in very good condition. It has several thousand miles on a set of Richmond gears. Let me know if you are interested.
I have a 3.70 rear end that is in very good condition. It has several thousand miles on a set of Richmond gears. Let me know if you are interested.
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,373
Likes: 6
From: Baltimore MD
Tires can make a lot of difference. I have a 3.55 rear end and 255/50-17 tires(27.1" tall). 55mph is about 15-1600 rims. I have a pretty good cam too and I considered a 3.70 gear change to up the rims. I determined that a change to a 255/45-17 tire gave almost the same rpm increase. I found that a change in my timing advance curve made it much better in the 50-55 mph range and iced my issue. If you will pm me your email I will send you a spreadsheet that you can use to compare tire sizes, ratios, speeds, and rpms.
I have a 3.70 rear end that is in very good condition. It has several thousand miles on a set of Richmond gears. Let me know if you are interested.
I have a 3.70 rear end that is in very good condition. It has several thousand miles on a set of Richmond gears. Let me know if you are interested.
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Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,373
Likes: 6
From: Baltimore MD
Aaron i recieved it,its what i thought ,not much difference between a 355 to 370 ,couple mph difference.I wonder how much a 410 would be? Even with tire differences
Last edited by Billysvette; Nov 2, 2012 at 09:55 PM.
Burning Brakes
Joined: Jan 2004
Posts: 769
Likes: 0
From: Ft. Lauderdale Fl
With my Tremic TKO 5 speed Has a 3.27 first gear and 3.08 gears in the back. I launch off the line like i had 3.90 gears. That is the ideal gear. If you had 3.73's equals 4.56. If you had 4.11's equals 4.88. Those gears are to looooow for the street. With the 3.55 you have. Maybe you'll launch like 4.00 gears That is good. The cost of the swap out isn't worth the little change you get.
In my tremic, overdrive is .68 I beleave the the Tremic 6 speed has the .64 overdrive. Before you do anything call Tremic and ask a tech.
In my tremic, overdrive is .68 I beleave the the Tremic 6 speed has the .64 overdrive. Before you do anything call Tremic and ask a tech.
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,373
Likes: 6
From: Baltimore MD
With my Tremic TKO 5 speed Has a 3.27 first gear and 3.08 gears in the back. I launch off the line like i had 3.90 gears. That is the ideal gear. If you had 3.73's equals 4.56. If you had 4.11's equals 4.88. Those gears are to looooow for the street. With the 3.55 you have. Maybe you'll launch like 4.00 gears That is good. The cost of the swap out isn't worth the little change you get.
In my tremic, overdrive is .68 I beleave the the Tremic 6 speed has the .64 overdrive. Before you do anything call Tremic and ask a tech.
In my tremic, overdrive is .68 I beleave the the Tremic 6 speed has the .64 overdrive. Before you do anything call Tremic and ask a tech.
Last edited by Billysvette; Nov 3, 2012 at 06:45 PM.
Pro
Joined: Dec 2004
Posts: 590
Likes: 2
From: Fairfield CT
RPM calculator
HurstDriveline has a rpm calculator on their website: http://www.hurst-drivelines.com/?page_id=11 to use for their Tremecs.
Advanced
Joined: Jul 2012
Posts: 65
Likes: 0
With my Tremic TKO 5 speed Has a 3.27 first gear and 3.08 gears in the back. I launch off the line like i had 3.90 gears. That is the ideal gear. If you had 3.73's equals 4.56. If you had 4.11's equals 4.88. Those gears are to looooow for the street. With the 3.55 you have. Maybe you'll launch like 4.00 gears That is good. The cost of the swap out isn't worth the little change you get.
In my tremic, overdrive is .68 I beleave the the Tremic 6 speed has the .64 overdrive. Before you do anything call Tremic and ask a tech.
In my tremic, overdrive is .68 I beleave the the Tremic 6 speed has the .64 overdrive. Before you do anything call Tremic and ask a tech.
The TKO-500 has the 3.27 first and a .68 OD. The TKO-600 has a 2.87 first and .64 OD