Carb: Pros, Cons?

Rx-7fetish · 08-29-2011, 06:06 PM

No, no. I have two running 7's. One is a tenth Ann. So I have a turbo, fuel injected car to play with, then I have the sport coupe which I'm debating to carb, I want more info before I do to make an educated decision as to actually doing or what parts to use.

j9fd3s · 08-31-2011, 11:51 AM

the biggest con to the carb is that you have to buy it, and spend time tuning it.

there are also a bunch of other things you need to buy to get it to work.

you need a low PSI fuel pump, a regulator, intake manifold, the carb, jets, air filter, etc etc. basically take the price of the carb NEW and double it.

there are basically two styles of intake, and two styles of carb.

the street setup, is the RB upper intake and side draft carb. http://www.racingbeat.com/RX7-1986-1...ake/18101.html this keeps the stock lower intake and 6 ports. since the intake is long like stock you can expect a nice broad power band.

you can also go IDA, which is a downdraft. intake is shorter and straighter, so top end should be better. http://www.mazdatrix.com/r-idamanifolds.htm

08-29-2011, 06:06 PM	#1
Rx-7fetish Blue Blur Join Date: Jan 2009 Location: Windsor Posts: 211 Rep Power: 0	No, no. I have two running 7's. One is a tenth Ann. So I have a turbo, fuel injected car to play with, then I have the sport coupe which I'm debating to carb, I want more info before I do to make an educated decision as to actually doing or what parts to use. Last edited by Rx-7fetish; 08-29-2011 at 06:21 PM.

08-31-2011, 11:51 AM	#2
j9fd3s Rotary Fanatic Join Date: Mar 2008 Posts: 123 Rep Power: 18	the biggest con to the carb is that you have to buy it, and spend time tuning it. there are also a bunch of other things you need to buy to get it to work. you need a low PSI fuel pump, a regulator, intake manifold, the carb, jets, air filter, etc etc. basically take the price of the carb NEW and double it. there are basically two styles of intake, and two styles of carb. the street setup, is the RB upper intake and side draft carb. http://www.racingbeat.com/RX7-1986-1...ake/18101.html this keeps the stock lower intake and 6 ports. since the intake is long like stock you can expect a nice broad power band. you can also go IDA, which is a downdraft. intake is shorter and straighter, so top end should be better. http://www.mazdatrix.com/r-idamanifolds.htm