Evo 5 Speed 4.11 / 3.73 Final Drive Pros/Cons/Experiences
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Evo 5 Speed 4.11 / 3.73 Final Drive Pros/Cons/Experiences
Hi All,
I have a 2.3 stroker and GT35R turbo along with the usual bolt ons.
The car was making 313kw atw (or ~420whp), its currently being rebuilt and im getting some headwork and some other performance mods, so hopefully i'll be around the 350kw atw (or ~475whp) mark on Dyno Dynamics Dyno.
Since i had the new setup i find the gears are just too short and the car revs so quickly. So i started looking around and decided to try a 4.11 HKS final drive. The goal was simply to make the car nicer to drive daily and highway cruising (ie: lower revs in 5th) and so it wasnt so quick reving.
Below is a chart showing the speed in gear for a 5 speed Evo with stock 17" Rims and standard tyres.
So the 4.11 is being installed at the moment but i wanted to hear some opinions from other people who have changed the final drive.
I would also like to hear from anyone who has done some comprehensive testing on what final drive is the best for straight line acceleration for cars with stroker motors and high horsepower.
Any other performance testing done ie: Time Attack with a different final drive would also be very interesting.
Thanks
I have a 2.3 stroker and GT35R turbo along with the usual bolt ons.
The car was making 313kw atw (or ~420whp), its currently being rebuilt and im getting some headwork and some other performance mods, so hopefully i'll be around the 350kw atw (or ~475whp) mark on Dyno Dynamics Dyno.
Since i had the new setup i find the gears are just too short and the car revs so quickly. So i started looking around and decided to try a 4.11 HKS final drive. The goal was simply to make the car nicer to drive daily and highway cruising (ie: lower revs in 5th) and so it wasnt so quick reving.
Below is a chart showing the speed in gear for a 5 speed Evo with stock 17" Rims and standard tyres.
So the 4.11 is being installed at the moment but i wanted to hear some opinions from other people who have changed the final drive.
I would also like to hear from anyone who has done some comprehensive testing on what final drive is the best for straight line acceleration for cars with stroker motors and high horsepower.
Any other performance testing done ie: Time Attack with a different final drive would also be very interesting.
Thanks
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i know going with a 3.73 will slow acceleration BIG TIME!(from what im guessing), so i def want to get some peoples opinions on this. im around 400wheel maybe a lil more with stock turbo,motor,head with meth. i plan on getting around 600ish with the built bottem and meth so dont think itll be to much of an issue.
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something that I don't think you guys are considering is what extra strain will be placed on the driveline by changing up the final drive. The 4.11 does't seen too extreme but the 3.73 I would think to be a little to hard on the driveline coming out of the hole in racing. Just my thoughts.
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something that I don't think you guys are considering is what extra strain will be placed on the driveline by changing up the final drive. The 4.11 does't seen too extreme but the 3.73 I would think to be a little to hard on the driveline coming out of the hole in racing. Just my thoughts.
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the 4.3 is the other final drive ratio that is actually the optional homologated final drive for competition, but never came installed on the car.
the evo X's are so heavy it's final drive is 4.7, to try and keep it fast.
the evo X's are so heavy it's final drive is 4.7, to try and keep it fast.
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^^ the 5 speed (GSR) Evo X is 4.7, the MR is 4.0
I like the MR's 4.0 , seems to work well with the fast shifts and minimal boost pressure drop on gear shifts. Makes a 200kw atw evo keep up with much higher power Evos with 4.539 FD and manual
I like the MR's 4.0 , seems to work well with the fast shifts and minimal boost pressure drop on gear shifts. Makes a 200kw atw evo keep up with much higher power Evos with 4.539 FD and manual
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Ralliart made a box with the option of a 4.307 with the help of Hewland Engineering, Ricardo also has a box that is GroupN Homologated.
Everything is broken down here. http://candcperformancefabrication.c...nformation.pdf
Everything is broken down here. http://candcperformancefabrication.c...nformation.pdf