Brake Ducting on a 1989 Honda CRX

[Tom Blaney]

I'll have to get a look at the differences in the front hub carrier etc, but if it is similiar it should not be hard

If they are a lot different than the 88 than I would need to get a hold of some junker front end pieces for a few days (we can work that out).

[GBugg]

I've always heard you need to cool both sides of the rotor to prevent warping. Is that just a myth?

[Tom Blaney]

The best you can do is try and vent as much air to the center of the rotor (if it's a vented rotor) since it is trying to force the air out the veins. What my unit does is push air to the center and on the caliper side of the rotor to try and get some additional cooling to the caliper (minimal but anything is helpful). The only two things I've experienced that have warped a rotor is water on a hot rotor, and stopping the car with very hot brakes, and sitting there with your foot on the brake thereby heat soaking the one spot with what is coming from the pad.

I have not heard of cooling both sided equally making a difference.

[ozal92]

Anybody have any pictures of the brake duct inlet especially on the 88-89 cars? Can you open holes in the front of the bumper for the ducts?

[Tom Blaney]

I have attached a link to the fitting that I used on the CRX-Si. http://raceshop.sbmsinc.com/photos/Hose_adapter_0.JPG

I also started to make Brake Ducts again, so if you need them let me know.

[ozal92]

Yeah, I've seen people do that. But can you cut a hole and rivit in a http://www.pegasusautoracing.com/pro...p?Product=3623 to the lower part of the 88-89 bumper? I know yo could do it to an air dam. I think theres something that says no changes to the body can be made or something?

BTW, Tom, you have the Unorthodox Racing race crank pulley in stock?

[Tom Blaney]

Well actually if you look at the design of the pocket (where I have the fitting installed) it is actually a more effective air source, since it is longer and has more frontal area so it will collect more air and should have a better ram effect. Plus the fitting goes in with a simple pop rivet and then the hose attaches to it. If I'm not mistaken the 88 didn't have the driving light pockets, but you can get that bumper cover really cheap from the web and replace the old one (it's also a great place to put my trade stickers .. shameless plug)

I don't stock the pulley (since the 88 and 89-91 crank snout is different), but can get them pretty quickly.