Summary: Koyo Rad Fitment problems
#1
Derwin
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Summary: Koyo Rad Fitment problems
Ok guys,
Done many searches just wanted to make a summary of all the problems people have had trying to install the Koyo rad into their FD's to try and summerize if it is worth the extra dough to go for the Fluidyne which seems to have less fitment issues but maybe a little less quality from what I gather.
Ohh also little not please write whether you have the N-Flow or Regular Radiator and any other relevant information.
Many thanks, much appreciation and much love,
Alex
P.s Pics are always a plus. I have a 93 Touring FD.
Done many searches just wanted to make a summary of all the problems people have had trying to install the Koyo rad into their FD's to try and summerize if it is worth the extra dough to go for the Fluidyne which seems to have less fitment issues but maybe a little less quality from what I gather.
Ohh also little not please write whether you have the N-Flow or Regular Radiator and any other relevant information.
Many thanks, much appreciation and much love,
Alex
P.s Pics are always a plus. I have a 93 Touring FD.
#4
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Mine bolted in too. I had to fiddle with the battery a little because things did sit a little higher but it was more or less a simple install. I have the regular Koyo and I can't say enough about the quality of that radiator.
#5
Full Member
IIRC, the only thing I had to adjust was the mounting brackets and getting the rubber bumpers to sit properly. Oh wait, I lied. I had to adjust my Greddy SMIC to allow my hood to close. Just as "silverTRD" said. It is well worth it at the end.
#7
In order to get the ASP large IC duct to fit correctly I modified the upper hangers to hang 1/4" lower and replaced the upper rubber mounts with a bolt and a thinner rubber grommet. No problems other than that, but I also removed my AC condensor at the same time...
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#10
Eats, Sleeps, Dreams Rotary
I had the koyo..got so frustrated with the fitment that I sold it for a fluidyne.
Not only could I not close my hood with the stock airbox, but I the radiator also pushed up on my ASP medium intercooler causing rubbing and making it impossible to clamp my hood latch down.
I also read all of the "it's not difficult to install threads" and thought I was ok but what was the biggest worry for me was seeing the thick Koyo resting against the AC cooler. I guess I could have done more fabbing to keep it from resting there but I was tired of fiddling with something that was supposedly a simple "drop in". The last thing I wanted was the contact rubbing a hole in my AC or coolant line.
Ask some people with the koyo in stock config to take some pictures and you will see what I mean.
For me, the piece of mind was easily worth the fluidyne. If you don't mind some DIY then get the Koyo....If you want a "plug and play" I prefer the fluidyne.
Not only could I not close my hood with the stock airbox, but I the radiator also pushed up on my ASP medium intercooler causing rubbing and making it impossible to clamp my hood latch down.
I also read all of the "it's not difficult to install threads" and thought I was ok but what was the biggest worry for me was seeing the thick Koyo resting against the AC cooler. I guess I could have done more fabbing to keep it from resting there but I was tired of fiddling with something that was supposedly a simple "drop in". The last thing I wanted was the contact rubbing a hole in my AC or coolant line.
Ask some people with the koyo in stock config to take some pictures and you will see what I mean.
For me, the piece of mind was easily worth the fluidyne. If you don't mind some DIY then get the Koyo....If you want a "plug and play" I prefer the fluidyne.
#11
Eats, Sleeps, Dreams Rotary
Finally, you have to take some of the posts with a grain of salt. Some people who advocated a simple install had singles or aftermarket IC that made the install simpler.
#12
Senior Member
Here is Thread I started on all my problems with fitment. https://www.rx7club.com/3rd-generation-specific-1993-2002-16/my-new-koyo-dont-fit-crap-469207/
I would have gladly paid extra for a mazdaspeed for perfect fitment.
I would have gladly paid extra for a mazdaspeed for perfect fitment.
#18
radiator alternative?
I have had the same fitment issues. You may want to consider a new airbox. Rick at Ricks Rotary in Pleasanton CA makes a box that is a half an inch shorter which takes care of the clearance isuue. His work is impeccable.
Frankadelic
Frankadelic
#19
Eats, Sleeps, Dreams Rotary
does Rick make the RX7fashion airbox??
I LOVE that box! Sits low well built. HOWEVER, the radiator inlet for the koyo sits so high that it rubs against the bottom of the box. I had to bang a dent in the bottom to get the freaking koyo to clear.
This was an issue as I also smelled a little coolant but could never find the source. After I lost my last engine, on the tear down, we saw that the airbox rubbed against the top radiator hose causing a small pinpoint leak.
I LOVE that box! Sits low well built. HOWEVER, the radiator inlet for the koyo sits so high that it rubs against the bottom of the box. I had to bang a dent in the bottom to get the freaking koyo to clear.
This was an issue as I also smelled a little coolant but could never find the source. After I lost my last engine, on the tear down, we saw that the airbox rubbed against the top radiator hose causing a small pinpoint leak.
#20
Living the dream...
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Originally Posted by FuturePerfect
I've not seen the Mazdaspeed radiators for sale on the common vendor websites. Where can you purchase that radiator from?
#23
Originally Posted by dradon03
Ok that pretty much sums it up for me thanks. Fluidyne it is.
Thanks to everyone for their positive input.
Alex
Thanks to everyone for their positive input.
Alex
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msilvia
3rd Generation Specific (1993-2002)
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09-11-15 12:13 PM