1st gen 2nd gen crossover question.
06-11-02, 05:58 PM
#1
Senior Member
Thread Starter
Join Date: Sep 2001
Location: Winnipeg, Manitoba
Posts: 675
Likes: 0
Received 0 Likes
on
0 Posts
1st gen 2nd gen crossover question.
has anyone here set up a gen1 12A with 5/6 ports at all?
theres a guy int he city that has one. anyone here done it and what kind of difference did you notice?
theres a guy int he city that has one. anyone here done it and what kind of difference did you notice?
06-11-02, 06:15 PM
#4
Old [Sch|F]ool
There was a 12A 6-port (carbureted) sold starting in '81 in Japan.
There was a US-only model RX-7 sold in '84 and '85 called the GSL-SE, it has a fuel injected 13B 6-port in it.
Making a 6-port 12A block would be easy with readily available parts - just put GSL-SE endplates on a 12A. Voila, 12A 6-port. The hard part is getting an intake manifold for it that has the 6-port actuators, my guess is the only place you can get a manifold for a 12A 6P is from one of the Japanese engines that came that way. Any other way would render the 6-ports useless and you might as well just go with a big street port.
FCs are kinda big and heavy, I don't know why you'd want to put a 12A in one other than, say, having a dead FC and a live 12A and nothing better to do with your time.
(Hey, I was considering it for a short while...)
There was a US-only model RX-7 sold in '84 and '85 called the GSL-SE, it has a fuel injected 13B 6-port in it.
Making a 6-port 12A block would be easy with readily available parts - just put GSL-SE endplates on a 12A. Voila, 12A 6-port. The hard part is getting an intake manifold for it that has the 6-port actuators, my guess is the only place you can get a manifold for a 12A 6P is from one of the Japanese engines that came that way. Any other way would render the 6-ports useless and you might as well just go with a big street port.
FCs are kinda big and heavy, I don't know why you'd want to put a 12A in one other than, say, having a dead FC and a live 12A and nothing better to do with your time.
(Hey, I was considering it for a short while...)
06-12-02, 06:54 AM
#6
Senior Member
Thread Starter
Join Date: Sep 2001
Location: Winnipeg, Manitoba
Posts: 675
Likes: 0
Received 0 Likes
on
0 Posts
misunderstanding. the 6 ports were going into a gen1(non gsl-se) not a gen2.
i believe he used gen2 parts to accomplish this. that what i hear anyway.
so it was a 12a in gen1 w/6 ports.
i believe he used gen2 parts to accomplish this. that what i hear anyway.
so it was a 12a in gen1 w/6 ports.
06-12-02, 07:30 AM
#7
It can be done if you use the irons from an '84-'85 GSL-SE. I don't think the FC water jackets match up properly. However, I don't understand why you would want to go through all that work when you could make much more HP by streetporting your 12A.
Trending Topics
06-12-02, 07:33 AM
#8
Old [Sch|F]ool
Right, the hard part would be locating or making an intake manifold for the 6-ports... it'd end up that for less hassle you can make a street port 4-port that makes more power.
06-12-02, 12:04 PM
#9
Super Newbie
Originally posted by HuggyBear
misunderstanding. the 6 ports were going into a gen1(non gsl-se) not a gen2.
i believe he used gen2 parts to accomplish this. that what i hear anyway.
so it was a 12a in gen1 w/6 ports.
misunderstanding. the 6 ports were going into a gen1(non gsl-se) not a gen2.
i believe he used gen2 parts to accomplish this. that what i hear anyway.
so it was a 12a in gen1 w/6 ports.
Thread
Thread Starter
Forum
Replies
Last Post