Alright, A couple monthes ago, I bought a 85 GSL-SE, and now that winters come in WI, I want to start upgrading it, since I can't drive it until march anyway.

My car is 100% stock right now and I've heard the exhaust is the best place to start. Not wanting it too loud, I've been looking at the racing beat systems. Because there a little expensive, I decieded to look around for a used system and save a few bucks.

I found one in the classifyed second of this site, but I don't know for sure if it will fit by just bolting it on, or if it will need some modification.

It is installed in a 81 right now, but with a 74-78 13B streetported engine in it. The racing beat site has a different system for the GSL-SE and the other 13Bs, so I don't know if this system would bolt right on. I know almost nothing about cars, and I would like to try to put it on myself.

https://www.rx7club.com/showthread.p...hreadid=261878

There it is, again, I have a 85 GSL-SE. So, do you think it would be worth it?

Thanks.

 

The GSL-SE models from Racing Beat all include the model-specific attachments that allow the following features;

1) '6'-port actuating tube which runs from the presilencer back up to the ACV, and which provides the backpressure signal to power the '6'-port actuators (which operate at 1.6-2.4psi ~ 3800 rpm),

2) mounting points for the GSL-SE undercarriage, including rubber donut hanger points and tailpipe lengths, and

3) mounting point in the header assembly for your O2 sensor, require to run closed-loop fuel injection patterns using the sensor to adapt the fuel flow to maintain best Air/Fuel mixture (14.7 parts air to 1 part fuel) - this is important to an EFI system.

These 2 considerations mean that if it's currently mounted on an 81 13b conversion, it will NOT work on your GSL-SE without some other modifications to actuate the '6'-ports via airpump, electric solenoid, or some other pressure source. This does not come without it's own hassles.

For the money, I went with the Mazdatrix sold RB header and presilencer which has all the correct mounting points, O2 sensor location, and everything needed to bolt up to a GSL-SE. You could make this other system work, but you'd need to do a lot more than spin a few wrenches to get it running correctly.

Do a quick search on '6'-port induction (specific only to the GSL-SE in 1st Gen's) and take a look at some of that information. Good luck,

 

Look here and there........Parts trader........E-bay.....
or here in the classified........I picked up all of mine used......Saved big bucks.........

My Se thanks me.......and it will thank you too when it can breathe correct..........also help your intake......filter.........or go to a cone setup........

Later

 

PartsTrader.com is still down.............

Anybody know what happen?


John

 

This would bolt up to the standard mounts and flange.

https://www.rx7club.com/forum/showth...hreadid=262985

 

Thanks for the responses.

Hmm, I could go with a RB header/presilencer and use the catback that bruceman is selling.

Does that sound like a good idea?

Thanks.