Bluem

Im looking to see what options on different gear boxes
for fd's and i came across dog-boxes(sequential trans.)
i found hks makes a sequential 6-speed for the FD
but its kinda to much $$$... are there any other
companies that makes dogboxes for the FD????????



POST LINKS PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


THANX

peejay

Dog boxes don't have to be sequential... most aren't.

JONSKI

I thought dog boxes were manual transmissions except without synchros or helical forward gears.

Dyre

Yeah Jon, they are just striaght cut gears thats use dog rings to line up the gears, instead of syncromeshs...

peejay

Dog boxes use "dogs" or "lugs" instead of splines and synchronizers. Clack, you're in gear.

Has nothing to do with the cut of the gears... dogboxes typically use straight-cut gears, but that's only because it's a race tranny and straight cut gears are a bit stronger. It doesn't matter if the transmission whines like an electric drill. The cut of the gears is independent - in fact, some cars have come with straight cut gears from the factory, and they were still synchro trannies. Likewise, you can guy dogbox gearsets with helical gears (because they are simply modified stock gears and not all-new pieces).

Bluem

can anyone post some info on the hks 6-speed sequential gear-box dos anybody have it on their fd

links ,price ,and coments .........pics

RotaryExperimental

how streetable are dogbox's?

Elegant Black Monster

Loud as all hell, if I believe. Theres a guy around here that goes to the meets with a sequential racing tranny... I think the tranny is louder than the motor and the fuel pump is almost as loud!

RotaryExperimental

im talking about destroing parts, because of them not being syncronized would wear and tear be to much for the street

skunks

if you can manage to drive with it, it will probally have to be rebuild every year or so...

RotaryExperimental

Skunks what do you mean by manage to drive with it?

David Beale

They are hard to drive. You pretty much have to shift when the car is moving. It's really difficult when it's stopped. You also have to be really "aggressive" or deliberate when shifting - no messing around. Takes lots of practise.

RotaryExperimental

well thanks for the info guys, i think i got a good idea of what goin on.

Actually one more thing do any of you guys know of a good link or book that has alot of info on working and so forth on the dogbox's?

7mania

Well to your interest here is what the HKS "dog box" transmission sounds like while shifting. Well you basically have to bang into each gear and match the rev and that is very critical or else you will hear the nasty grinding and you don't want that.

http://www.mirageautosports.com/GTR/HKSmission.mpg

doncojones

You know how most cars make that funky whining noise when they're driven in reverse? That's because generally reverse is a straight-cut gear which is the same as what is used in most dog boxes. So if you don't mind the car sounding like it's in reverse ALL THE TIME then I guess you might go for it. I can't see much of a reason that you'd want to put a dog box in a street car though.