DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Coolant Reroute Required?

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Old 11-25-2008, 04:25 PM
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Default Coolant Reroute Required?

Will my NB erupt in a huge ball of flame or otherwise self destruct if I don't do a reroute? I mean, is this a MUST have or a NICE to have?

Background is I am planning on 8 PSI, intercooled on a T25, stock 99 motor with a Koyo rad, DD with an autocross or two, no track time.

If it's a nice to have, I may leave it for later. I have so much to do on the car right now, I'd like to do the minimum needed to get it done.

If everyone says it's a must have, I guess I will have to add it to the list.
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Old 11-25-2008, 04:29 PM
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It's not a must. Good tuning and no detonation is a must. Do that and you'll be fine.

But, I want to do a reroute pretty bad too. I just never get around to it. I'm going to do a DIY custom setup one day using a lot of factory parts from other mazda's.... If I ever do it, I'll post a little write up.
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Old 11-25-2008, 04:31 PM
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You don't need a reroute, they're good for track cars. I autocross my car and drive it hard on the street above 12 psi with a baby intercooler. You'll see some 220* temps if you really drive the **** out of it but that won't hurt anything and it will drop quickly.

Savington tracks his car than pretty much everyone on this board I think and i'm pretty sure he doesn't have the "race reroute" to the back of the head.
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Old 11-25-2008, 06:42 PM
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Good for track cars, not at all required. I've been turbo 22,000 miles without one, including a bunch of track days. Next time my motor is out of the car I'm going to do one.
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Old 11-26-2008, 08:40 AM
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Cool. Glad it's not an issue.
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Old 11-26-2008, 08:57 AM
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+1 on what is said above. You can run 8 psi with no reroute on a stock radiator with no worries; I did this for awhile. With the Koyo you will be especially fine.

I am running 12-14 psi on a stock '99 motor (in a 99) with an oversized radiator and no reroute.
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Old 11-26-2008, 09:13 AM
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Originally Posted by ZX-Tex
I am running 12-14 psi on a stock '99 motor (in a 99) with an oversized radiator and no reroute.
I sure wish I had a PnP MS for my 99 so I could run over 8 PSI. I'm paying $727 for a PnP Zoom3 to be capped at 8PSI. After I get it running, I'm going to try some 305's to see if I can bump it up a bit. The stock ECU should still be able to handle 305's, right?
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Old 11-26-2008, 09:18 AM
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Dude, if you do not know, don't let the fact that Autotune does not make one stop you. Just install a CAS and you too can have a parallel MS. There are at least two people on this board that know how to do it.
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Old 11-26-2008, 09:25 AM
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Originally Posted by Savington
Good for track cars, not at all required. I've been turbo 22,000 miles without one, including a bunch of track days. Next time my motor is out of the car I'm going to do one.
But why?

If its a non issue for 22k miles, wouldnt it be a waste of time?
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