Crown wheel & pinion for my racecar

Red 2f MX5 · Postby **Red 2f MX5** » Fri May 09, 2008 9:53 am

Has anybody got a 4.3 crown wheel and pinion they want to get rid of.

My race car (NA) has a 4.1 in it and i think a 4.3 would be a better ratio for most of the tracks we drive on. The 4.1 just bogs down a little bit in certain tracks in certain spots.
Took the car out to Oran Park GP on Wednesday for some testing and wasn't even using 5th gear at the end of the straight. About 7800rpm in 4th. It was sort of stuck between gears on a few corners. Did make some good gains with the suspension but. Got down to a 1.21. I think a 4.3 ratio will get it into the 1.20's.

cheers
Brett

Cal · Postby **Cal** » Fri May 09, 2008 10:27 am

1.21

Fatty · Postby **Fatty** » Fri May 09, 2008 10:58 am

you would be better off posting a topic in the \"used car (or parts)\" section.

more people will see it there.

Fatty · Postby **Fatty** » Fri May 09, 2008 3:01 pm

also there is actually already one for sale in that forum. *edit i just read it again and he doesn't want to seperate it so you'd have to buy the whole assembly .

try looking around here a bit rather than just sticking in this motorsport sub forum. there is plenty of good info scattered all over the place here.

Matty · Postby **Matty** » Fri May 09, 2008 6:03 pm

4.44 is commonly available (Econovan) - should be adequate.

Red 2f MX5 · Postby **Red 2f MX5** » Fri May 09, 2008 6:16 pm

I was thinking about a 4.4
Might just buy a 4.3 new from Mazda. Not cheap. About $750 i think.

cheers
Brett

Matty · Postby **Matty** » Fri May 09, 2008 8:47 pm

ouch! cost me $250 to get an open 4.44 econovan diff

MxJadeMonkey · Postby **MxJadeMonkey** » Sat May 10, 2008 1:16 pm

I just had a set, but they are gone now, bummer.

try mania, they sold me my last two sets of those.

I also have two sets of f***kd 4.3's in my shed, but of no use.

mania I should think might have one or two!