Best transmission for a D15b7?

**TheSaint** · 07-07-2010 08:05 PM

hey all - dont know if this is the right place to post this but here goes...

i have a D15b7 with 300k kms on the clock, it has a USDM D16a6 cam and basic bolt ons ... always looked after, serviced well, fussed over etc

after having a bumpy ride for a while, i checked my shocks and they were dead, so i replaced them ... but the bumpy ride was still there ggrrr

after driving normally for 5mins (didnt even get to put my foot down) i was pulling out onto a highway in 1st gear and the car just started free revving ...
the transmission feels fine, the clutch still has spring, and the engine still runs ... but when i release the clutch while in gear it just revs with no drive to the wheels

i got towed back to my mechanics house and he pulled it apart again to have a look at it ... he said that the input shaft could be dead but he will have to investigate further, this could account for the bumpy ride i was getting

either way he told me to start pricing up transmissions from the local wreckers

whats the best transmission i can get for this engine? what will fit?
i tried a quick search but my search-fu is weak

if someone could point me in the right direction i would be greatful =)

my build thread for more info ...

http://www.ozhonda.com/forum/showthr...-s-Civic-Ferio

**xclusive_eg8** · 07-07-2010 09:54 PM

The Si is the best > Vti > GLi. I shall have a D15B7 tranny in a few weeks for your takings, needs new clutch but runs so so smooth doesn't slip or nothing

**TheSaint** · 07-07-2010 11:06 PM

whats the name of the engine from the australian SI?

are there any better gearbox's from the EK d-series?

**HondaPie** · 08-07-2010 07:52 AM

u can take from d16y7/8 engine then put 1st and 3th gear from CRX great setup ;P

**markismaximus** · 08-07-2010 08:01 AM

Originally Posted by xclusive_eg8

The Si is the best > Vti > GLi. I shall have a D15B7 tranny in a few weeks for your takings, needs new clutch but runs so so smooth doesn't slip or nothing

whats your reasoning behind that?

The gli and Vti box are almost the same, 1st, 2nd, 3rd, reverse, and final drive are identical. So unless you plan on hitting insane speeds in 4th and 5th gear theres little variation

**TheSaint** · 08-07-2010 10:43 AM

im looking for a stronger box with more performance in 1st, 2nd, 3rd, ... i only cruise on the highway in higher gears ... so thats no concern - and i never go over 110km/h lol

i will be needing a new box .. so i just thought if there was a slightly better one i would get that instead of the D15b7

so is the D16y8 box the best?

**HondaPie** · 08-07-2010 10:47 AM

d16y7 thats what i think, with 1st,3rd from crx they are more agressive, so u will gain some extra torque
2nd is ok u no need to change, 4th and 5th are long so good for motoway

**markismaximus** · 08-07-2010 11:17 AM

Originally Posted by HondaPie

d16y7 thats what i think, with 1st,3rd from crx they are more agressive, so u will gain some extra torque
2nd is ok u no need to change, 4th and 5th are long so good for motoway

what are the ratios of the crx 1st and 3rd?

**TheSaint** · 08-07-2010 11:31 AM

i wont be changing gears out ... i just want something i can bolt on

**jdm_b16a** · 08-07-2010 12:28 PM

The D16Y1 VTi box is a very good box. You can flog it around the track and it will hold up to constant VTEC engagement even with a free flowing exhaust. Get yourself an EXEDY clutch setup to match it. I'm talking about the 21 spline job not the 20 spline.

Peter