Sr20det T25 turbo, it is ok to run without coolant?
Ive heard that a Turbo came off the factory cars which has oil and coolant line that we can only run the oil lines but get a turbo timer. is that true?
who has sr20det t25 and only run oil lines? thanks! |
better to run both but oil is ok
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Yes, I ran the t25 on my SE-R without coolant for quite a while and there were no ill effects. I did let it idle for a minute or 2 after running it hard before shutting it down.
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There really isn't any reason not to run the coolant though.
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Originally Posted by paNX2K&SE-R
(Post 566781)
Yes, I ran the t25 on my SE-R without coolant for quite a while and there were no ill effects. I ALWAYS let it idle for a minute or 2 after running it hard before shutting it down.
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Originally Posted by 240_to_miata
(Post 566783)
There really isn't any reason not to run the coolant though.
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Originally Posted by 18psi
(Post 566789)
aside from adding another failure point to the system and cluttering up the bay with more hoses? Sure:)
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The absolute easiest way to run coolant lines.
http://cgi.ebay.com/ebaymotors/M14x1...Q5fAccessories Use standard radiator hose and run off the nipples on the stock waterneck... CAKE! Buy enough hose for a couple sets and change them every 2 years when you flush your coolant system. |
Thanks for the replies. it looked like only paNX2K&SE-R ran the t25 without coolant. also another question is
i will install sr20det t25 turbo on my 90 miata, will i be able to get enough fuel with a Begi or vortech FMU with 1.8L injectors. whats the mpg will be with 7psi and FMU? thanks!! |
Originally Posted by waltershui
(Post 566857)
Thanks for the replies. it looked like only paNX2K&SE-R ran the t25 without coolant. also another question is
i will install sr20det t25 turbo on my 90 miata, will i be able to get enough fuel with a Begi or vortech FMU with 1.8L injectors. whats the mpg will be with 7psi and FMU? thanks!! Personally, I wouldn't take an FMU that high unless you have a bunch of other things - intercooler, wideband o2, something to retard the timing... If you can't afford a megasquirt, try to pick up a used AEM f/ic. |
The only reason I ran oil only is that I broke the hard water line that went from the block to the turbo on my DET when I was bending it to line up with the t25/bluebird manifold. The location was different than the GTi-R manifold/t28 I was running before. It was supposed to be temporary but I never got around to rectifying it and then I jumped ship to the Miata platform a year later. :)
I'd go with the setup on the ebay link above, its very similar to what SE-R people have been using for a long time when turboing a DE block and is extremely reliable. As Samnavy posted its sooooo easy on a Miata to tap into the lines for the feed and those lines are cheap. |
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