Right now my 89 SI 4WS is running:

- JDM B20A motor
- USDM Intake Manifold (ITM)
- USDM Exhaust manifold (EM) [with all o2 sensors, which connect to the (EM)]
- USDM Transmission D2J3

The transmission is beginning to slip and go bad however.

I have a D2J4 transmission that came with my B20A when I bought it, but I was never able to put it in since the speedometer that goes along with it is electric. and the car is set up for mechanical.

How would I go about putting in the D2J4 transmission and having a speedometer?

408

 

Correction: let me explain what is going on a little more.

When I drive the car, it is EXTREMELY hard to shift into 2nd gear. It will engage into 2nd at low RPM's, but at higher RPM's it won't catch until the RPM's have dropped.

Also there seems to be something slightly wrong with 3rd gear. It engages into 3rd fine, at any RPM, but as you drive, sometimes around 3500 RPM it feels like it "grabs better" and pulls harder, but only sometimes, other times it is OK.

The clutch feel fine to.

here are some pictures of the Transmission stampss, and the D2J4 speedometer.









408

 

I would try contacting Hasport and see if the mechanical speedo will drop into the tranny that came with the B20A. I'm pretty sure they did something similar with their H22 powered CRX that was featured in Sport Compact Car a while back. It may be something as simple as that. Good luck with your build man!

 

In the D and other B transmissions, you can alternate mechanical and electronic speed sensors, so I would not be surprised to find that yours is the same way. And I doubt HASport would know, considering they've probably never touched a B20A

 

the mechanical speed sensor will work in the JDM transmission

 

Well there you go.

 

Just take your old speed sensor from your old tranny and swap it right over. They are the same.