1hotlude

so i was on a road trip one day, and i noticed that in 5th gear i was only going 65 and i was at 3 and a half grand on the highway and it sounds like hell. is there anyway or something that i can buy that can give me taller gears.

Ludemandan

Lol, there is no bolt-on attachment that can give you taller gears. But you might be able to swap trannies for a higher-geared unit off another Prelude. What year/trim do you have?

sherwood

actually there is, it's called a final drive ratio... it acts as a constant multiplier... having a taller final drive will make your car signifigantly slower though....

Ludemandan

Can you just swap it in, or do you have to remove the tranny to replace it?

I have an M2L5 tranny sitting around (from an F22A1) and I'm planning to swap in 4th and 5th gears. I'm expecting it to be a major undertaking though.

h22accord

if the f22 tranny is out of a prelude than its a direct swap, just pull off your other one and replace it with that one. However if that tranny is out of a 4th gen accord it will bolt up to your engine but the mount on the transmission wont line up with the mount in the car. i already tried it in a 93 prelude si because i bought it with a blown engine(timing belt came off of the h23) i had already swapped my h22 into my accord so i had an accord engine and transmission laying around and thought that it would bolt straight up. All the mounts lined up except the transmission mount on the passenger side of the car. The end of the prelude transmission is about 5 inches wider than the tranny thats in the accord

Ludemandan

It's out of a Prelude. *phew* My question though, is can you swap in the final drive gear without taking the tranny off? Or 5th and 4th, for that matter?

1hotlude

first off thanks for the replys.


i have a 93 si h23

i am really not looking for speed now i just want a decently quick car that i can take on the HIGHway and not be redlined at 90mph

and how much does the final gear ratio cost and where can i get it?????

Ludemandan

You're better off tracking down someone's used Prelude S tranny (code M2L5) than buying the gear new, I think. I never even checked what the price of a new gear is, or if it's available, but I scored a 135k tranny for $100 (which I consider cheap), and I'll get to rebuild it on the bench before I take out my perfectly good one, so I know what I'm getting into.

mikesta21

does an si tranny really redline at 90mph?
ive only done 90 once or twice in my 93 si h23 so far but im pretty sure 90 was in the 3-4rpm range

2legit2quit

No, he was exagerating.