Upgrading Evo 9 trans to Evo 8 4th and 5th gearing
Dec 2, 2008, 08:12 AM
#17
I ran 318 in the dark last weekend...it was even easy then. It might be a tow, but it will be a good time with a bunch of fast cars and hopefully one or two fast Mitsus...
Dec 2, 2008, 08:31 AM
#18
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Is it recommended to get a longer 3rd gear with the 4th gear or only get the 4th gear?
How much would everything cost you including 3rd 4th and longer 5th with double syncros?
How much would everything cost you including 3rd 4th and longer 5th with double syncros?
Dec 2, 2008, 10:42 AM
#19
have you considered changing the final drive ratio to the 3.73? If more top end is what you're after then that would probably be your best bet, would make all the gears a little taller. It is listed as an option on TRE's website, they give a chart that shows approx. mph. Topps out at 181 I think.
Dec 2, 2008, 10:54 AM
#20
have you considered changing the final drive ratio to the 3.73? If more top end is what you're after then that would probably be your best bet, would make all the gears a little taller. It is listed as an option on TRE's website, they give a chart that shows approx. mph. Topps out at 181 I think.
I just need a longer 4th and 5th and I'm set. Those gears will do everything I need them to do.
Dec 2, 2008, 12:09 PM
#22
Because this is the way Mitsubishi had the VIII's. When they brought out the Evo 9's with the revised 4th gear they also revised the 5th gear why? Because its too short. They shortened 4th gear so they had to shorten 5th gear too. You can't have gears that far apart. These cars aren't exactly torque monsters like most V8's.
Evo 8 4th gear with an Evo 9 5th gear = not good. Its just too short for my likings and obviously Mitsubishis.
Evo 8 4th gear with an Evo 9 5th gear = not good. Its just too short for my likings and obviously Mitsubishis.
Dec 2, 2008, 01:02 PM
#23
Because this is the way Mitsubishi had the VIII's. When they brought out the Evo 9's with the revised 4th gear they also revised the 5th gear why? Because its too short. They shortened 4th gear so they had to shorten 5th gear too. You can't have gears that far apart. These cars aren't exactly torque monsters like most V8's.
Evo 8 4th gear with an Evo 9 5th gear = not good. Its just too short for my likings and obviously Mitsubishis.
Evo 8 4th gear with an Evo 9 5th gear = not good. Its just too short for my likings and obviously Mitsubishis.
Dec 2, 2008, 05:42 PM
#24
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235/40/18s will only allow me to trap 126 with a 8k limiter. I usually hit the limiter about 100 feet or so before the traps. The car is a stock geared 04.
Last edited by whitey4d; Dec 2, 2008 at 05:52 PM.
Dec 2, 2008, 09:45 PM
#26
I would leave 5th gear alone.... you would have much better accelleration using the EVO 8 4th gear going into the EVO 9 5th gear as it would already be in its sweet spot.
The EVO 9 3rd gear is also a little too short and you could benefit from going with the EVO 8 3rd gear.
The ultimate tranny is EVO 9 ---- 1,2&5 with EVO 8 ---- 3&4.
I would not even consider the taller 5th gear or double sycros as there is no reason to bang 5th gear.
The EVO 9 3rd gear is also a little too short and you could benefit from going with the EVO 8 3rd gear.
The ultimate tranny is EVO 9 ---- 1,2&5 with EVO 8 ---- 3&4.
I would not even consider the taller 5th gear or double sycros as there is no reason to bang 5th gear.
Dec 3, 2008, 10:01 AM
#27
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so for better top end and a street/highway car, the best would be Evo 9 transmission 1st and 2nd with Evo 8 3rd, 4th, and 5th gears?
would that give good acceleration with nice top end, right?
would that give good acceleration with nice top end, right?
Dec 3, 2008, 11:09 AM
#28
This would of course all be fixed if I had a built engine/head and could rev out to 8500.
What I'm thinking is since the Evo 8 4th gear is longer it would put me higher up in the revs when going into my Evo 9 5th which would mean I would probably drop back to around 6500 rpms instead of 6k.
On the flipside though when I get past a certain point in 5th it seems like I just get to 160 too fast.
I'm still unsure of what I'm going to do. Going to talk to shep when he gets the trans tell him what I plan on doing and what he thinks would benefit me best.
I found some gear ratios with mph of the Evo 8 and 9.
Speed with stock final drive, 7500 RPM:
---------------------- 4th ------- 5th
VIII 5 Speed ------ 121.7 ---- 174.3
IX GSR 5 speed----114.5 --- 164.9
Last edited by damstr; Dec 3, 2008 at 11:12 AM.
Dec 3, 2008, 03:26 PM
#29
Yes you will definitely be at a higher rpm shifting into the Evo 9 5th gear with an Evo 8 4th gear but I highly doubt you would need to shift to 5th with the added rpms the Evo 8 4th gear will give you.
What does your car currently trap in the 1/4 mile?
What does your car currently trap in the 1/4 mile?
Last edited by RyuEvoIX; Dec 3, 2008 at 03:31 PM.
Dec 3, 2008, 04:05 PM
#30
So with a good launch I should be around mid 120's or more.