rumble_rabbi

Hi, i have a high compression b18 with a jdm 98 spec s80 4.7 final drive . would a long first gear be any better for me and my set-up thanks?

vteczone

The only tall first gear ( i can think of that's off the shelf) and direct swap to your stock 1st gear is 3.07 which offered by companies like Mfactory, ATS or Gear X... kazz made 2.667 1st gear which comes with main shaft but they are discontinued a long time ago. I think toda has 2.929 tall 1st gear but is way expensive. Im not a gear expert but others will chime in asking what power is your motor making, tyres size, weight of your car etc etc..

onefstek

Gearspeed has a long 1st gear for the B trans.

Stefan

0parts@synchrotech

If you have a true 98 Spec 4.7 Type R trans you will need the specific longer gear for your setup. There is a difference between US Spec Type R/96 Spec JDM Type R and the 98 Spec JDM Type R 1st Gear. I can get you the specific 3.0 1st gear for your setup. Feel free to PM me for pricing.

rumble_rabbi

i have a jdm 98 spec itr trans .. n3e on the box . im just wondering would i benifit from it ? my car weight about 900kgs .. using rays 5.114 with drag tyres .. 1.8 fully forged bottom end .. and 70 mil exuast ??

turboedc2

I was wondering the same thing on a turbo gsr if its worth getting one looking at the mfactory

Turbo-LS

iTrader: (4)

If your drag racing a longer 1st gear will help drop your 60's which will equal better et's

turboedc2

That's what I was told thanks

rumble_rabbi

hopefully it will .. i paid 225 posted to the door .. last time i raced i got 14.2 with road tyres and a 4.9 s4c box .. hopefully i will get around 13.3 or 4 ..

MoiMotorsports

i have a quaife gear set it works good in the video im shifting at 9300 need to move it up to 10,500 so i don't end up in 5th at run a 26ich tire i was using a 24.5 the long first is real nice
gear input output ratio rev drop @ 8000 rpm shift
1 13teeth 32 teeth 2.462 -
2 16 29 1.813 2109 rpm
3 18 27 1.500 1381 rpm
4 20 25 1.250 1333 rpm
5 22 23 1.045 1312 rpm

rumble_rabbi

nice video lad .. any other advice for me ? how to get my time's down as low as i can .. while keeping d engine the way it is ?weight ? exaust ? tyre's ? thanks

bauergold

Take as much weight out of the car as possible and work on your short track.

rumble_rabbi

what about a long first gear and a short 3rd 4th and 5th ?