b16b gearbox options

[vrmmmpshhh]

i had a look at different honda gearboxes and the teg vtir and ek9 gearboxes share very similar ratios, even the final drives are the same. did honda make a mistake with the 4.4fd in the ek9?

[dougie_504]

Where did you get your info and how similar were the ratios? I can't remember figured off the top of my head.

But no, afaik the ek9 box was suited well to the car.

[vrmmmpshhh]

http://www.ff-squad.com/tech/temp/Bgears.htm
theyre not exactly the same but are the changes enough that ill notice a significant difference? guys with the ITR 4.7 final drive must be changing gears like mad. whats your opinion of the b16a box with an aftermarket lsd and 4.7fd?

[dougie_504]

Saw that previously. Yes those gears are sufficiently shorter to make a difference.

I have a B16A and I'm putting in a 4.9FD and helical LSD, as well as an LS 5th gear which is I think 0.742 as opposed to the B16A's standard 0.870 (massive difference). Will report back in a few months.

As for the ITR, some of the gears are longer than the B16A's but the shorter FD acts as a multiplier and shortens most of them to below that of the B16A which comes with the 4.4 or 4.266. You might change gears a but earlier but when you hammering the car you basically stay in VTEC all the time whereas cars with the 4.266 will fall out of the powerband pretty much every shift.


AFAIK, B16A with 4.7 or 4.9 = super fun but 5th revs very high at cruising gears which is why I'm going the LS 5th to lengthen it.


http://www.teammfactory.com/gear-calculator

[chez00]

Good info Dougie.

[PAPZ]

i have a cleaned out S80 gearbox housing. TODA Transmission close 1st and 2nd gear set. OEM 3rd, 4th and 5th gear set. ATS 4.9 final drive. All the syncros are good except 2nd gear. Also need new bearings and a LSD ready for install. Let me know if your interested.

[dougie_504]

Shortened 1st and 2nd with a 4.9? Ouchies!