B18C power differences

**EK Civic R** · 11-10-2005 10:11 AM

Hey
Does anyone know the power differences between
B18C - JDM 96 ITR
B18C - JDM 98 ITR
B18C7 - AUDM ITR

I've sort of gotten the diffeences between 98 ITR and AUDM ITR
But hard to get info on the 96 ITR

Is the 96 faster than the 98 model??

**T-onedc2** · 12-10-2005 07:34 AM

The '96 spec (JDM) had the port and polish in the engine done by hand, by the time '98 spec (JDM) came around they did it by machine which did and even better, more accurate job. In 1/4 mile they're virtually identical, but once in 4th gear the '96 spec catches up due to having a lower final drive. The slightly taller ratio of the '98 spec (JDM) was found to be better on the track by being able to hold a given gear for a little longer through some corners. The main changes otherwise for '98 were minor cosmetic, front HID's (JDM), bigger brakes and wheels, different lower rear control arms (which gave easier handling). I think that's most of it.

**chinkdood** · 12-10-2005 09:41 AM

wats the diff sizes in brakes?

**civicboy** · 12-10-2005 10:29 AM

search

**aaronng** · 12-10-2005 12:06 PM

Originally Posted by T-onedc2

The '96 spec (JDM) had the port and polish in the engine done by hand, by the time '98 spec (JDM) came around they did it by machine which did and even better, more accurate job. In 1/4 mile they're virtually identical, but once in 4th gear the '96 spec catches up due to having a lower final drive. The slightly taller ratio of the '98 spec (JDM) was found to be better on the track by being able to hold a given gear for a little longer through some corners. The main changes otherwise for '98 were minor cosmetic, front HID's (JDM), bigger brakes and wheels, different lower rear control arms (which gave easier handling). I think that's most of it.

If the 96 and 98 are identical in the 1st 3 gears with the 96' spec having a lower final drive, that means the 98' spec should output slightly more power.

**vteccoupe** · 12-10-2005 07:37 PM

Originally Posted by aaronng

If the 96 and 98 are identical in the 1st 3 gears with the 96' spec having a lower final drive, that means the 98' spec should output slightly more power.

i tot the final drive/gearbox doesnt affects the power?it just affects hw the power is delivered?

**tinkerbell** · 12-10-2005 07:46 PM

Originally Posted by EK Civic R

Is the 96 faster than the 98 model??

ummm, no.

it has smaller cams and smaller exhaust manifold.

**aaronng** · 12-10-2005 08:19 PM

Originally Posted by vteccoupe

i tot the final drive/gearbox doesnt affects the power?it just affects hw the power is delivered?

Lower final drive gives better acceleration, but your top speed in the gear is lowered and you have to shift earlier. So in the end it evens out, no change in power. But when comparing in a particular gear without shifting, the one with lower final ratio will accelerate harder.

**barefootbonzai** · 13-10-2005 09:43 AM

Originally Posted by aaronng

Lower final drive gives better acceleration, but your top speed in the gear is lowered and you have to shift earlier. So in the end it evens out, no change in power. But when comparing in a particular gear without shifting, the one with lower final ratio will accelerate harder.

Don't you mean higher final drive? The 98 spec ITR has a higher final drive and will accelarate faster than the 96 spec.