Tre Rear Differential Upgrade Service
#121
Evolved Member
iTrader: (22)
Join Date: Nov 2004
Location: CT
Posts: 1,427
Likes: 0
Received 0 Likes
on
0 Posts
Ok, so I had a chance to run in the cold on old 710's. The corner exit difference with the TRE rear diff is pretty pronounced. The car is actually starting to feel more like a rwd car with benefits. I'm actually considering getting rid of some rear toe to stabilize the car on-throttle.
I should also note there were some other STU Evo's out that got loose in similar spots as my car, I just don't think it was in the same manner. Car set FTD and PAX so I'm pretty pleased.
As for that bump, you can see it in the video's, I had a much easier time carrying speed through there than I have in the past, although this course had a very wide turnaround.
Check out the videos of Dan and myself here:
http://holunfie.blogspot.com/2008/04...jr-scca-t.html
John
I should also note there were some other STU Evo's out that got loose in similar spots as my car, I just don't think it was in the same manner. Car set FTD and PAX so I'm pretty pleased.
As for that bump, you can see it in the video's, I had a much easier time carrying speed through there than I have in the past, although this course had a very wide turnaround.
Check out the videos of Dan and myself here:
http://holunfie.blogspot.com/2008/04...jr-scca-t.html
John
#122
Evolving Member
iTrader: (1)
Join Date: Aug 2005
Location: North Corona, CA
Posts: 132
Likes: 0
Received 0 Likes
on
0 Posts
Ok, so I had a chance to run in the cold on old 710's. The corner exit difference with the TRE rear diff is pretty pronounced. The car is actually starting to feel more like a rwd car with benefits. I'm actually considering getting rid of some rear toe to stabilize the car on-throttle.
I should also note there were some other STU Evo's out that got loose in similar spots as my car, I just don't think it was in the same manner. Car set FTD and PAX so I'm pretty pleased.
As for that bump, you can see it in the video's, I had a much easier time carrying speed through there than I have in the past, although this course had a very wide turnaround.
Check out the videos of Dan and myself here:
http://holunfie.blogspot.com/2008/04...jr-scca-t.html
John
I should also note there were some other STU Evo's out that got loose in similar spots as my car, I just don't think it was in the same manner. Car set FTD and PAX so I'm pretty pleased.
As for that bump, you can see it in the video's, I had a much easier time carrying speed through there than I have in the past, although this course had a very wide turnaround.
Check out the videos of Dan and myself here:
http://holunfie.blogspot.com/2008/04...jr-scca-t.html
John
#124
Evolved Member
iTrader: (12)
Join Date: Aug 2004
Location: MA
Posts: 1,249
Likes: 0
Received 0 Likes
on
0 Posts
Hi All,
I just wanted to post my experience again with the TRE Rear diff, I finally got my SCCA T2 Evo all assembled after the winter and I need to say that the diff upgrade is the real deal. This thing is just amazingly aggressive, I am totally impressed with the overall change in the car, Jon really has a tremendous service and IMO this is one of the best upgrades that you can buy for this car. With the spring package SCCA approved it's like a whole new car.
Absolutely amazing. if you do any sort of motorsport and don't have this yet, I urge you to go and get this service done.
I just wanted to post my experience again with the TRE Rear diff, I finally got my SCCA T2 Evo all assembled after the winter and I need to say that the diff upgrade is the real deal. This thing is just amazingly aggressive, I am totally impressed with the overall change in the car, Jon really has a tremendous service and IMO this is one of the best upgrades that you can buy for this car. With the spring package SCCA approved it's like a whole new car.
Absolutely amazing. if you do any sort of motorsport and don't have this yet, I urge you to go and get this service done.
#125
Evolving Member
iTrader: (3)
Join Date: Aug 2003
Location: Lexington, MA
Posts: 222
Likes: 0
Received 0 Likes
on
0 Posts
Hi All,
I just wanted to post my experience again with the TRE Rear diff, I finally got my SCCA T2 Evo all assembled after the winter and I need to say that the diff upgrade is the real deal. This thing is just amazingly aggressive, I am totally impressed with the overall change in the car, Jon really has a tremendous service and IMO this is one of the best upgrades that you can buy for this car. With the spring package SCCA approved it's like a whole new car.
Absolutely amazing. if you do any sort of motorsport and don't have this yet, I urge you to go and get this service done.
I just wanted to post my experience again with the TRE Rear diff, I finally got my SCCA T2 Evo all assembled after the winter and I need to say that the diff upgrade is the real deal. This thing is just amazingly aggressive, I am totally impressed with the overall change in the car, Jon really has a tremendous service and IMO this is one of the best upgrades that you can buy for this car. With the spring package SCCA approved it's like a whole new car.
Absolutely amazing. if you do any sort of motorsport and don't have this yet, I urge you to go and get this service done.
By the way, do you have a modified center diff, or just the TRE-built rear diff? I'm still trying to figure out if there's any significant need for a 40/60 center diff, once you have the rear diff build.
#126
Evolved Member
iTrader: (12)
Join Date: Aug 2004
Location: MA
Posts: 1,249
Likes: 0
Received 0 Likes
on
0 Posts
I agree. It made a tremendous difference in my first autocross event!
By the way, do you have a modified center diff, or just the TRE-built rear diff? I'm still trying to figure out if there's any significant need for a 40/60 center diff, once you have the rear diff build.
By the way, do you have a modified center diff, or just the TRE-built rear diff? I'm still trying to figure out if there's any significant need for a 40/60 center diff, once you have the rear diff build.
I am just running the stock center, however a good friend of mine uses the 40/60 center diff and says with that with the TRE rear diff the car starts to act more like a really well balanced RWD car rather than an understeering AWD pig I know you autocross guys do lots of tight turns, I think the two of those upgrades would be really beneficial.
#127
Evolved Member
iTrader: (22)
Join Date: Nov 2004
Location: CT
Posts: 1,427
Likes: 0
Received 0 Likes
on
0 Posts
Hi point&shoot,
I am just running the stock center, however a good friend of mine uses the 40/60 center diff and says with that with the TRE rear diff the car starts to act more like a really well balanced RWD car rather than an understeering AWD pig I know you autocross guys do lots of tight turns, I think the two of those upgrades would be really beneficial.
I am just running the stock center, however a good friend of mine uses the 40/60 center diff and says with that with the TRE rear diff the car starts to act more like a really well balanced RWD car rather than an understeering AWD pig I know you autocross guys do lots of tight turns, I think the two of those upgrades would be really beneficial.
The combo def kicks ***. However I'm not sure if the $$ spent for the 40/60 is entirely worth it when you consider the labor involved. It does make the car begin to feel more like a rwd car, that is def true. Crappy thing is the damn car still has 60% of the weight over the front wheels, absolutely nothing you can really do about that in some autox classes.
John
#128
Evolved Member
Thread Starter
iTrader: (66)
Join Date: Jul 2005
Posts: 1,606
Likes: 0
Received 0 Likes
on
0 Posts
Interesting stuff. Glad to see this thread still flourishing...I just sent Jon my TC for the Ralliart upgrade. I wonder if he offfers a 40/60 split as well...
Kekek is absolutely right - dropping as much weight in the front is an option (lighter rad, bumper beam removal, lightweight member support, small battery or re-location, AC delete, HID delete etc) and while that may help, the dang iron block 4G63 is still a major cause for the weight
Kekek is absolutely right - dropping as much weight in the front is an option (lighter rad, bumper beam removal, lightweight member support, small battery or re-location, AC delete, HID delete etc) and while that may help, the dang iron block 4G63 is still a major cause for the weight
#129
Evolved Member
iTrader: (12)
Join Date: Aug 2004
Location: MA
Posts: 1,249
Likes: 0
Received 0 Likes
on
0 Posts
Interesting stuff. Glad to see this thread still flourishing...I just sent Jon my TC for the Ralliart upgrade. I wonder if he offfers a 40/60 split as well...
Kekek is absolutely right - dropping as much weight in the front is an option (lighter rad, bumper beam removal, lightweight member support, small battery or re-location, AC delete, HID delete etc) and while that may help, the dang iron block 4G63 is still a major cause for the weight
Kekek is absolutely right - dropping as much weight in the front is an option (lighter rad, bumper beam removal, lightweight member support, small battery or re-location, AC delete, HID delete etc) and while that may help, the dang iron block 4G63 is still a major cause for the weight
#132
Evolved Member
Thread Starter
iTrader: (66)
Join Date: Jul 2005
Posts: 1,606
Likes: 0
Received 0 Likes
on
0 Posts
Jon - The cusco goes in the t-case or are you saying its in the rear? I am confused...
Since you have my t-case right now, I am wondering if I should do the ralliart or the cusco version. Any thoughts? I will call you...And you know I already have your rear diff mod
Since you have my t-case right now, I am wondering if I should do the ralliart or the cusco version. Any thoughts? I will call you...And you know I already have your rear diff mod
#133
Evolving Member
iTrader: (1)
Join Date: Jan 2004
Location: Lex, KY
Posts: 234
Likes: 0
Received 0 Likes
on
0 Posts
slightly OT: Jon, I recently got the front LSD installed in my 03, and WOW! what a difference it has made. Once I get my money buffer back in place, I will definitely need to send my rear diff in. Can't wait to see how these 2 mods work together.
#135
Evolving Member
iTrader: (5)
Hi All,
I just wanted to post my experience again with the TRE Rear diff, I finally got my SCCA T2 Evo all assembled after the winter and I need to say that the diff upgrade is the real deal. This thing is just amazingly aggressive, I am totally impressed with the overall change in the car, Jon really has a tremendous service and IMO this is one of the best upgrades that you can buy for this car. With the spring package SCCA approved it's like a whole new car.
Absolutely amazing. if you do any sort of motorsport and don't have this yet, I urge you to go and get this service done.
I just wanted to post my experience again with the TRE Rear diff, I finally got my SCCA T2 Evo all assembled after the winter and I need to say that the diff upgrade is the real deal. This thing is just amazingly aggressive, I am totally impressed with the overall change in the car, Jon really has a tremendous service and IMO this is one of the best upgrades that you can buy for this car. With the spring package SCCA approved it's like a whole new car.
Absolutely amazing. if you do any sort of motorsport and don't have this yet, I urge you to go and get this service done.
I'm glad that you like how the rear diff changes the way the EVO drives and I will be testing the latest version that has 16 friction plates here shortly. The lock-up will be overkill for tarmac but work well for the loose found in rally.
Last edited by GEARS; Apr 22, 2008 at 09:32 AM.