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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

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Old 05-09-2008, 12:51 AM   #1
TehMonkay
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Quote:
Originally Posted by RETed View Post
I dunno...
It depends.
Some people claim the FD water pump isn't that great.
I know the FC water pumps are cheaper.
There's a seller on eBay (usellit2me?) that sells brand new NOS water pump + housing for under $100.
That's a deal.
We've never had any problems with the FC water pump set-up, and we've converting it to a Meziere electric set-up on the 20B now.


Don't have any experience with the Griffin rads, as we only use AFCO racing rads ourselves.
The size sounds just about the same as the AFCO Racing 80125N.
The 80125N is a dual-pass design with the inlet / outlet on the same size as stock.


-Ted
Well i went ahead and bookmarked the afco radiator then, i will use the S5 pump as well, do you know of any inexpensive places for a metal neck, or will it be simple enough to just make one? Also, with this type of radiator, and the S5 pump, will I need an AST? Where should I plumb it in to?

Will i be able to swap the RE pulley on the S5 W/P and continue to use a serpertine belt, or will i swap FC pullies onto the alternator/crank?

I read the faq on your site but i still have some questions on this.
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Old 05-10-2008, 04:44 AM   #2
RETed
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Quote:
Originally Posted by TehMonkay View Post
do you know of any inexpensive places for a metal neck, or will it be simple enough to just make one?
Either make one or buy the cast aluminum one from Mazdatrix?

Quote:
Also, with this type of radiator, and the S5 pump, will I need an AST? Where should I plumb it in to?
Good question...
We've always used S4 thermostat covers with the cap, so we never ran into problems with air getting trapped...

Quote:
Will i be able to swap the RE pulley on the S5 W/P and continue to use a serpertine belt, or will i swap FC pullies onto the alternator/crank?
Yep, you can keep the Cosmo serpentine belts if you want.
Do you have the Cosmo alternator (pulley)?
I can't comment if the Cosmo alternator pulley swaps over to an FC alternator.
Sorry, I don't know the length of that belt, so you'd need to go to the auto parts store to source the right belt.
We normally use the v-belts that the stock FC uses.

Quote:
I read the faq on your site but i still have some questions on this.
Yeah, it's not 100% complete.
I haven't edited that thing in AGES. :P


-Ted
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because you're only as good as your backup
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Old 05-11-2008, 05:59 PM   #3
TehMonkay
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So i'm thinking using an S4 neck and just making a new flange for it to fit on the S5 water pump housing would be my best option then.

I'm planning on just using the RE alternator if possible, i'll have to take a look at it once the engine comes in.
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