Greetings from Washington State

fjordbosun · 10-09-2015, 06:46 AM

Hello folks, new to this forum, came aboard to gain some knowledge about
these fascinating engines. Just bought a car that has a rotary swap. From what I know so far it's a 1984 RX-7 13b with a carburetor. A 5 speed transmission and a LSD RX-7 IRS center section. I have no experience with these engines but so far in these few days driving my 968 with this set up
I find it a bit under powered but still handles well. So I might do some searching and some lurking but I hope I can learn something from you guys and hop this set up.....up, Cheers, TB

Fendamonky · 10-09-2015, 08:47 AM

FBs (which you have) are notorious for not having balls. I wouldn't stress it too much...

Welcome to the forum!!

Pics and/or further details?

fjordbosun · 10-09-2015, 06:11 PM

According to the person who did the swap it is claimed as a street ported 4 port 13B assembled in a new GSL-SE housing and claimed to have used high end components through out the build. Need to learn what all that means, been doing searches but have to wade through a lot of irrelevant stuff. Any thoughts on if this is any good as a starting point for further mods/upgrades?

GySgtFrank · 10-09-2015, 10:00 PM

Quote:

Originally Posted by fjordbosun

According to the person who did the swap it is claimed as a street ported 4 port 13B assembled in a new GSL-SE housing and claimed to have used high end components through out the build. Need to learn what all that means, been doing searches but have to wade through a lot of irrelevant stuff. Any thoughts on if this is any good as a starting point for further mods/upgrades?

It really depends upon your power goals and expectations. It sounds like a pretty good setup for a naturally aspirated engine. It is not a high power combination by any means, but it should be a lot of fun. You have to keep in mind that you are working with a mere 80 cubic inches of displacement so it is not going to be the equivalent of a V8 without boost. If you want 200ish or more horsepower plan on a turbocharger and all that goes with it. You could get over 200hp with a full peripheral port or possibly big bridge port, but there are tradeoffs in drivability and fuel consumption with those. Not to mention the expense of a lot of custom work if you can't do it yourself. Personally I would say drive and enjoy it as is for now and if you decide you need more power, build an REW based turbo'ed/fuel injected engine and drop it in when you have everything ready to go. Be advised that all the supporting hardware and electronics to do it will not be cheap. Research, research, research.

speedjunkie · 10-10-2015, 02:27 AM

Welcome!

10-09-2015, 06:46 AM	#1
fjordbosun The Newbie Join Date: Oct 2015 Posts: 2 Rep Power: 0	Greetings from Washington State Hello folks, new to this forum, came aboard to gain some knowledge about these fascinating engines. Just bought a car that has a rotary swap. From what I know so far it's a 1984 RX-7 13b with a carburetor. A 5 speed transmission and a LSD RX-7 IRS center section. I have no experience with these engines but so far in these few days driving my 968 with this set up I find it a bit under powered but still handles well. So I might do some searching and some lurking but I hope I can learn something from you guys and hop this set up.....up, Cheers, TB

10-09-2015, 06:11 PM	#3
fjordbosun The Newbie Join Date: Oct 2015 Posts: 2 Rep Power: 0	According to the person who did the swap it is claimed as a street ported 4 port 13B assembled in a new GSL-SE housing and claimed to have used high end components through out the build. Need to learn what all that means, been doing searches but have to wade through a lot of irrelevant stuff. Any thoughts on if this is any good as a starting point for further mods/upgrades?

10-10-2015, 02:27 AM	#5
speedjunkie RCC Loves Me Not You Join Date: Mar 2008 Location: Colorado Springs, CO Posts: 2,089 Rep Power: 20	Welcome!