2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

npr intercooler on a s4

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Old Aug 18, 2002 | 07:26 PM
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npr intercooler on a s4

hi i gonna get a 87 tII next sunday and i have a small npr intercooler im planning to put. how hard is to put one on it? does somebody have done it before? any pics? thanks
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Old Aug 19, 2002 | 06:13 PM
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Old Aug 19, 2002 | 06:26 PM
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my s4 with an s5 front conversion...
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Old Aug 19, 2002 | 07:07 PM
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A bunch of people have done it. There aren't any kits available, so you'll be on your own for piping and mounting. But it's pretty straightforward.

A search of this forum should turn up a bunch of pictures.
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Old Aug 19, 2002 | 09:12 PM
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Just a question...You guys with the NPR IC's...are they the small units? I gotta medium NPR in perfect shape if anyones interested....Before I bought the Spearco I eye-ball'd the NPR medium but it looked way to big without cutting **** up
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Old Aug 20, 2002 | 09:26 AM
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vmb
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hey hypntz you got any pics of the eng in your car?
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Old Aug 20, 2002 | 05:22 PM
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Originally posted by bkapold@aol.com
Just a question...You guys with the NPR IC's...are they the small units? I gotta medium NPR in perfect shape if anyones interested....Before I bought the Spearco I eye-ball'd the NPR medium but it looked way to big without cutting **** up
We had the large NPR mounted in BDC's car... it fit with only a little trimming of the plastic undertray and removal of the little sheet metal "thingy" that mounts all the relays in front of the core support. We did NOT run piping, but it was obvious what to do to make the pipes work.

The NPR intercooler doesn't flow that well really for its size. From the numbers I have seen, the hot ticket for a CHEAP intercooler appears to be a Mk III Supra unit. (that's the PREVIOUS body style, not the newest ones.) It flows pretty well, has enough surface area to give good cooling performance, and isn't as restrictive on the cooling air path as most- VERY important on an RX-7!

Brad
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Old Aug 20, 2002 | 05:22 PM
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p.s. the Supra unit looks like a stock radiator or a/c core... very stealthy!

Brad
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Old Aug 20, 2002 | 06:13 PM
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I looked everywhere for any supra intercooler and could not find one for sale anywhere.
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Old Aug 20, 2002 | 06:46 PM
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ahhhh yes, the Supra IC is one of the best. Spearco makes replacement IC for the Supra and I think at one point was there best flowing unit to date...its mainly because the fins run North and South.....

I've heard nothing but great things from the NPR's though..I have a friend from PR and he claims thats what most run there......I think Sakura (Galant), Carlos does....However, if your going to run 7's I would guess those guys are running alcohol, so no point in an IC then....

I would be interested in seeing photos of the large or medium installed, anyone????

I have photos of my motor/FMIC setup if your interested too..

bkapold@aol.com
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Old Aug 20, 2002 | 09:25 PM
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Originally posted by bkapold@aol.com
ahhhh yes, the Supra IC is one of the best. Spearco makes replacement IC for the Supra and I think at one point was there best flowing unit to date...its mainly because the fins run North and South.....

I've heard nothing but great things from the NPR's though..I have a friend from PR and he claims thats what most run there......I think Sakura (Galant), Carlos does....However, if your going to run 7's I would guess those guys are running alcohol, so no point in an IC then....

I would be interested in seeing photos of the large or medium installed, anyone????

I have photos of my motor/FMIC setup if your interested too..

bkapold@aol.com
Yes I'm interested in pics. Is it a custom intercooler setup or a kit? I would love to see some pics. Start a thread with them if you don't mind.
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Old Aug 20, 2002 | 09:38 PM
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bkapold i pmed ya
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Old Aug 22, 2002 | 09:52 AM
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Originally posted by rx7_ragtop
From the numbers I have seen, the hot ticket for a CHEAP intercooler appears to be a Mk III Supra unit. (that's the PREVIOUS body style, not the newest ones.) It flows pretty well, has enough surface area to give good cooling performance, and isn't as restrictive on the cooling air path as most- VERY important on an RX-7!
See everyone has their opinions about each intercooler. Now I've heard bad about the supra one too:

https://www.rx7club.com/forum/showth...hreadid=107726
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Old Aug 24, 2002 | 09:09 PM
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Hey, sorry I didn't respond back...Hypntyz7, do you have any photos with the hood pop'd up? I'd like to see the routing of the tubing....I'm just into putz'n around seeing what others have done

As soon as I get my new E-fan installed (old one fried out) and take this dumb clutch fan out, I'll post my FM-Spearco w/ T60-1 Turbo....My air filter is even mounted out front (via Wolf EMS) no-AFM
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