replacing gsl-se motor
#1
replacing gsl-se motor
it's looking like my motor is finally on it's way out and i'm looking around for a replacement 13b.
how much of a pain is it to swap an S4 NA motor into an -SE? if i found a deal on one, i would consider it if it wasn't a huge problem.
or would it be better for me to hold out for an SE motor?
how much of a pain is it to swap an S4 NA motor into an -SE? if i found a deal on one, i would consider it if it wasn't a huge problem.
or would it be better for me to hold out for an SE motor?
#3
Rotary Freak
S4 motor goes right in I belive, and has lighter rotors
Making a 4 port with 12A side housings would be prety bad *** with a big street port (thats what I'm doing next time)
Making a 4 port with 12A side housings would be prety bad *** with a big street port (thats what I'm doing next time)
#4
but to save a lil dough, getting the motor rebuilt along w/ streetport will save you some money, rather than getting another motor and start from there
and 12a plates not that expensive either
rotors --- if you have some spare dough, might as well go s5 rotating assembly
and 12a plates not that expensive either
rotors --- if you have some spare dough, might as well go s5 rotating assembly
#7
Lapping = Fapping
iTrader: (13)
An S4's fuel infection is a bit different, so I don't know if you're going to want to go through the trouble of upgrading. Will you keep the dizzy? Or go with a CAS? Aftermarket ECU? Gonna do a carb? A Weber DCOE on a Racing Beat upper manifold will bolt to the stock GSL-SE or S4 lower manifold. You could get a Mazdatrix header with the backpressure sensing bung (instead of the Racing Beat presilencer with the bung way back there). Don't bother with the S4 air pump. Does it need to pass emissions? Gonna do a supercharger some day?
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#9
That's what I did with my Engine
GSL-SE 13B with 12a Plates and turned it into a 4port and Ported the Living Crap out of it.
www.swimhurricanes.com/rxpage.htm
GSL-SE 13B with 12a Plates and turned it into a 4port and Ported the Living Crap out of it.
www.swimhurricanes.com/rxpage.htm
#12
i'm very happy with how the car performs stock, so i want to make this as easy and inexpensive as possible. will the SE goodies (intake manifold, fuel injection, etc) bolt on and work with an S4 motor? i assume they won't. i want to keep the car fuel injected which most likely means using an aftermarket ecu if i go FC style, which adds to the cost.
it'd be cool to make a 4-port out of the 12a plates, but a. i don't think that using my old housings would be a good idea considering they have a shitload of miles and b. i want to keep the fuel-injection intact.
it'd be cool to make a 4-port out of the 12a plates, but a. i don't think that using my old housings would be a good idea considering they have a shitload of miles and b. i want to keep the fuel-injection intact.
#13
Have RX-7, will restore
iTrader: (91)
the S4 is a noble idea, but remember the 2 piece apex seals. not great in my opinion. i would just stick with the 6 port. a downside to that is not really being able to port the engine much. you could swap in the S4 and its injection components with little trouble. your call.
#15
ok. is it possible to run an S4 motor, use the SE front cover, upper and lower intake manifolds, throttle body, and the rest of the SE fuel injection system?
if it bolts right up with just the front cover mod, i can see this as being an option, esp. since the S4 motor has slightly larger ports...
what say you?
if it bolts right up with just the front cover mod, i can see this as being an option, esp. since the S4 motor has slightly larger ports...
what say you?
#18
Heres a picture of a GSL-SE gasket against an S4 lower intake manifold. The primary intake ports do not line up and the S4 engine does not have the rectagular split air port in the center housing, they are on the sides so if emissions testing is a requirement youre outta luck.
If you really want to use an S4 engine then go with the S4 intake manifolds as well.
#22
RX for fun
iTrader: (13)
Originally posted by Jeff20B
How will a T2 manifold bolt up to 12A plates?
How will a T2 manifold bolt up to 12A plates?
#23
could i mount a SE throttle body onto a S4 intake manifold, then?
https://www.rx7club.com/forum/showth...d&pagenumber=1
#24
I think there's some S4 conversion info in here:
http://www.mazspeed.com/forum/thread...w3fb7a9u9qgsei
http://www.mazspeed.com/forum/thread...w3fb7a9u9qgsei
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