Long or short gear tranny?

[chaseamundo]

So i have been in debate with a buddy of mine over whether or not a long gear tranny is better for boost vs short gear and it has me thinking. I always thought short gear is better for NA and long gear for boost. Can someone WITH EXPERIENCE point me in the right direction here.

I dont know if it matters but the motor we are debating over is a 2.2 which is more Trq (in honda scene) and looking at big 16G size turbo.

Thank you,
Chase

[blown_ss]

longer gearing is better for boost any day. just think about how much you would be shifting with a short geared tranny with boost. turbo cars build pressure over a rpm band and you dont get your max boost just because you floor a car it comes at a certain rpm. max boost=max hp. with that said with a long gear tranny you will be at max boost/hp for a longer time.

[chaseamundo]

Thank you. thats what i was thinking but i had to make sure i was right before i continued to argue haha. thanks man.

[RBS]

longer gearing is better for boost any day. just think about how much you would be shifting with a short geared tranny with boost. turbo cars build pressure over a rpm band and you dont get your max boost just because you floor a car it comes at a certain rpm. max boost=max hp. with that said with a long gear tranny you will be at max boost/hp for a longer time.

depends on how much power your going to make. if your not making a big amount of power, you might want to consider a kinda short transmission thats geared for acceleration ... although if you have ALOT of power to pull then a long tranny will do great

[blown_ss]

depends on how much power your going to make. if your not making a big amount of power, you might want to consider a kinda short transmission thats geared for acceleration ... although if you have ALOT of power to pull then a long tranny will do great

this is true too. i was just talking in general. i would rather have a short geared tranny any day for boost.

[chaseamundo]

whats your idea of big power? like 300?

[RBS]

whats your idea of big power? like 300?

hell no LOL, 500+ would justify a uber long tranny in my eyes

[chaseamundo]

ok, so im better off with short gear haha bc im shooting for 300

[RBS]

ok, so im better off with short gear haha bc im shooting for 300


you will love it, as long as you get a turbo that supports your power goals (300ish) and spools uber quick WITH a close tranny, it will feel like a nasty dope all motor car

[chaseamundo]

I like.....Love that idea haha

[Drummerboy]

longer gearing is better for boost any day.


i would rather have a short geared tranny any day for boost.

...huh?



I personally love my F22 tranny (long gears) with boost. I made 347whp, 313 trq and never felt like my tranny was holding me back. I've considered an H22 tranny, but I drive too much on the highway to have gears that short.

[chaseamundo]

drummerboy, you need to clear your inbox haha

this is off topic but when you made 347hp, what was done to your motor?



Bc im thinking ima do a factory oem rebuild on the head, arp headstuds, cometic headgasket, and oem rods and pistons.

Looking to make 300hp.(possibly going to get bisimoto forged rods and pistons)

[JKOBD]

A shorter geared trans will out accelerate a longer geared trans anyday on paper. The issues come into play as to when you can not get the power to the ground effectively or you are out of rpm/mph and need to go to a longer geared tranny. My car made 800+whp and went 15Xmph in the 1/4 and I am using an ITR trans. If you can get the power to the ground and have the rpm/mph that you need, go with the shorter geared trans.

[Berta]

A shorter geared trans will out accelerate a longer geared trans anyday on paper. The issues come into play as to when you can not get the power to the ground effectively or you are out of rpm/mph and need to go to a longer geared tranny. My car made 800+whp and went 15Xmph in the 1/4 and I am using an ITR trans. If you can get the power to the ground and have the rpm/mph that you need, go with the shorter geared trans.

Well said!!!