possible re-route or am I crazy? - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

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Old 10-05-2009, 01:04 PM   #21
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Originally Posted by gospeed81 View Post
lmao

so your spacer was just another "pain in the ***" for you?
dont hate on the braineack logo.
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Old 10-10-2009, 09:59 AM   #22
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Dam, an actual search really works! Anyway, Just installed my re-route kit last night - easy work! (my tranny is dropped and out of the way). My '91 is track-only. I have Chin and Audi coming up during the next 3 weeks and didn't want to rush the turbo install, but what I can do right now is plan on dealing with heat during a 30min lap session for when the turbo is on. So - where is the coolest feed location for the turbo? As mentioned, it has to be after the pump for obvious reasons. Would the original Tstat location be better than the rear heater core port? My core is out - gone - so I currently have that port plugged. I guess the real question is will it make a difference? How about adding another 25row oil/transmission cooler on the drivers side and use it as a radiator specifically for the turbo - add some ducting from the removed lamp. I'm skeptical that the reroute kit is a cure-all, esp when boosting 10-12# for 30 min. Please tell - what could it hurt? Not like the ebay coolers are expensive. I won't have a problem running NA right now. I have a Godspeed rad, 25row oil cooler in passenger well... planning on doing a V-mount - top or bottom to be decided.
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Old 10-10-2009, 10:31 AM   #23
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Originally Posted by GeneSplicer View Post
So - where is the coolest feed location for the turbo? As mentioned, it has to be after the pump for obvious reasons. Would the original Tstat location be better than the rear heater core port?
Yes. The front outlet on the head has both the highest pressure differential and the lowest temperature coolant that you can access easily. Just get some .25" thick aluminum flat stock, cut it to match the base of the old thermostat housing, and put a hole in it to take coolant from. I just made one of these for my new engine, though I don't have any pictures handy.


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I'm skeptical that the reroute kit is a cure-all, esp when boosting 10-12# for 30 min.
A reroute as described here, plus returning the bypass coolant that would normally feed the heater core to the upper radiator hose instead, is as optimal as you're gonna get.

Since you have no heater core, I just wanna make sure that you didn't totally eliminate the bypass path that normally feeds it. Without that, you have zero coolant circulation when the thermostat is closed, and that would be a Bad Thing™.
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Old 10-10-2009, 10:32 AM   #24
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You need to read lots more. The turbo is oil cooled. The water lines keep the oil from frying when you turn the key off.

LBader has the badest *** twin radiator design if you want to check one out though. But note neither cooling system is for the turbo.
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Old 10-10-2009, 11:42 AM   #25
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Originally Posted by Joe Perez View Post
Since you have no heater core, I just wanna make sure that you didn't totally eliminate the bypass path that normally feeds it. Without that, you have zero coolant circulation when the thermostat is closed, and that would be a Bad Thing™.
I did elimate it completely, however, I drilled 5 1/4" holes in the tstat 'top' for it to pass through which should be sufficient to keep the coolant flow from being plugged. The heater 1/2" dia tubing was .1963sq", while 5 1/4" holes is .2454sq". I'll be installing a 160F tstat when the turbo is installed, and may/maynot unplug the rear housing depending on where I access for turbo feed. I have access with the front block-off plate provided with the re-eroute kit (Mtuned).

So I'd be better off installing another oil cooler for the turbo, or will just the 1 25row be enough for the entire engine and I shouldn't waste the time...

Last edited by GeneSplicer; 10-12-2009 at 12:21 AM.
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Old 10-11-2009, 08:46 PM   #26
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Originally Posted by Doppelgänger View Post
Why do you ******* keep trying to overcomplicate a goddamn coolant re-route? It's simple!!! Get a spacer, let your ***** drop and don't be afriad to scrape up your knuckles working in a tight space.
My engine is out, so no scraped knuckles here.
It was just an idea that I was curious about. Nothing more.
Deal with your saggy ***** and don't hate
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