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Engine Front mount intercooler

#26
Well I managed to make it all work. I'll see if I can make a detailed write-up on it later, but I've driven about 1k KMs on it so far without issues. No noticeable increase in turbo lag/transient response, but a huge difference in IATs.

I thought I had left a sensor unplugged when I was watching the IATs stay around 5-10*C above ambient after consecutive 3-4 gear pulls because with the stock intercooler the IATs would skyrocket.

I did have to make a couple of small notches in the back of the stock crash bar, but nothing to be concerned about. Also had to trim the top radiator shroud a little bit, but it's also still mainly intact. All in all, a successful experiment in my opinion, all for $420 CAD. And it still looks OEM from the front with the bumper on :D

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#30
Well I managed to make it all work. I'll see if I can make a detailed write-up on it later, but I've driven about 1k KMs on it so far without issues. No noticeable increase in turbo lag/transient response, but a huge difference in IATs.

I thought I had left a sensor unplugged when I was watching the IATs stay around 5-10*C above ambient after consecutive 3-4 gear pulls because with the stock intercooler the IATs would skyrocket.

I did have to make a couple of small notches in the back of the stock crash bar, but nothing to be concerned about. Also had to trim the top radiator shroud a little bit, but it's also still mainly intact. All in all, a successful experiment in my opinion, all for $420 CAD. And it still looks OEM from the front with the bumper on :D

View attachment 10428 View attachment 10429
What’s the green thing above the crash bar ?
 
#31
Well I managed to make it all work. I'll see if I can make a detailed write-up on it later, but I've driven about 1k KMs on it so far without issues. No noticeable increase in turbo lag/transient response, but a huge difference in IATs.

I thought I had left a sensor unplugged when I was watching the IATs stay around 5-10*C above ambient after consecutive 3-4 gear pulls because with the stock intercooler the IATs would skyrocket.

I did have to make a couple of small notches in the back of the stock crash bar, but nothing to be concerned about. Also had to trim the top radiator shroud a little bit, but it's also still mainly intact. All in all, a successful experiment in my opinion, all for $420 CAD. And it still looks OEM from the front with the bumper on :D

View attachment 10428 View attachment 10429
What brand is intercooler is that and what other parts did you need to make it fit? Where did you purchase everything?
 
#33
What’s the green thing above the crash bar ?
I had put a bit of masking tape across the rad support to measure centre so I could centre the intercooler on the front end. I removed it afterwards of course.

What brand is intercooler is that and what other parts did you need to make it fit? Where did you purchase everything?
Ebay Racing™ intercooler kit for an FC3S RX-7: https://www.ebay.ca/itm/Blue-FMIC-Front-Mount-Intercooler-Kit-for-RX7-FC-FC3S-13B-Single-Turbo-86-91/272300618439?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m1438.l2649

The only extra things I needed to buy were 3 couplers/reducers. 2x 2.25"-2.75" 90* elbow reducers, and 1x 2"-2.25" straight reducer. I managed to use the piping, t-bolt clamps and one of the couplers that came with the kit to adapt the intercooler to the stock intercooler piping.

I had to cut the 2 bottom tabs of the intercooler core about 1cm to fit on the bottom of the radsupport properly, but no welding or anything required. I did bend one upards a bit to fit better though since it was originally angled downwards.

It was a bit of work, but worth saving $800+ for sure. Plus the satisfaction of putting something together/making something work yourself :). Oh and FYI, the intercooler core is good for over 700hp, it's almost double the volume of the stock intercooler, and has over double the surface area (better cooling).
 

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