Mishimoto Radiator user feedback

i installed my radiator in june and its leaking already.started 2 or 3 weeks ago.
i cut the rubber on the brackets but i guess it didnt help.
it looks to be leaking from both end tanks.
i need to see if my stock radiator can be fixxed,than i'll have the mishimoto replaced.

with the rubber cut,i can move the rad forward and back alittle,but up and down is still alittle tight.

just earlier today i noticed that my replacement mishimoto is leaking...i put about 600 miles on this one and the previous one i had for about 1500 miles

i dont think i'll be taking them upon their warranty again...i want my $$$ back

I've had mine for 14 months and 8000 miles with no problems so far (knock on wood).

I really want an aluminum radiator but there are lots of threads like this that make me nervous... More expensive ones also seem to leak...

...any suggestions on a GOOD & RELIABLE radiator for our cars?

cooling is really not something i wanna mess with and keep re-installing faulty parts, i wanna know that everything is up to par and functioning properly

im debating going back to a stock replacement rad. Any feedback on those?

making room for movement is a good idea since the aftermarket ones are going to be a tad larger.

To those that have leaks...anyone have full length sub frame connectors? I wonder if that helps with the flex? Looking at the mod list it looks like most of you dont have subs...might help the issue.

vladasap said:

...any suggestions on a GOOD & RELIABLE radiator for our cars?

cooling is really not something i wanna mess with and keep re-installing faulty parts, i wanna know that everything is up to par and functioning properly

im debating going back to a stock replacement rad. Any feedback on those?

Click to expand...

You can spend $200 on a Mishimoto and have it leak or spend $400 on a fluidyne and that is just as likely to leak.

I agree that the tight fit and the body flex of our cars has a lot to do w/ it. I took mine to the track quite a bit after it was installed and I figured if anything that would cause it to leak b/c of the load and twisting the car is subjected to.

One thing that has not been documented is what kind of chassis stiffening is done for the ones that leak and the ones that dont. I have a good Strut Tower brace, full length sub frames and a 4 pt cage, needless to say the car does not flex much.

well i do have a ST Brace but no subs.

I'll weld in a set and then call Mishimoto AGAIN and pop the new one in and see what happens......

I think I'm going to build subs and then I'll look into the radiator...

My carquest radiator works great!

I had a Mishimoto... It failed (always leaked at the water neck a bit).... Finally bought a lifetime radiator from autozone... works perfect.

My factory stocker works just fine and I see no reason to replace it with an all aluminum piece. My plan, coated lt headers, stock replacement rad *when needed*, high flow Stewart Component water pump, balanced t-stat.

While we're discussing radiators, I thought i'd show ya'll somethin
http://cgi.ebay.com/ebaymotors/_Car...6.c0.m245&_trkparms=72:64|65:12|39:1|240:1309

Anyone here of this?

I've had my Mishi in for about 10 months now, and it has worked perfectly. I DO have full length subframe connectors- I believe they are necessary to prevent cracking. Full lengths from MM are only about 120, and help out all round not just for the radiator.

I led up the group buy and have not installed mine yet!! Its been about a year so I have to get it in this spring. Too many other projects!!

The car I'm putting it in has from Saleen a 3 row high flow copper brass. There is no way a stock replacement skinny radiator would keep this car cool in hot weather.

For those with stock engines I'm sure that a stocker will work for you. On a side note my son's 95 GT has gone though a stock radiator and the stock replacement lasted 8 months before it started to leak on the plastic tanks. So it's not just aftermarket radiators that have problem's.

I am currently on Mishimoto number 3. I was a part of the original group buy, and i think mine started to leak in less than 4 mos. They replaced it and i threw it on. Everything was cool, until June of this year, about 16 mos. after second one. Again the radiator started leaking.

I called KTeller and told him about them about the issues. He said that Mishimoto was no longer working with them, and to email Mishimoto directly. When i emailed them, i received an email fairly quickly explaining that they had redesigned the old radiator, and made it a 3 row radiator. Even though my warranty was up, they sent me a knew one, and just asked for a picture of my old leaky one. So far, so good. I am going to try to stiffen up the chassis of my car, hopefully that will help as well.