shouldnt run cooler if your thermostat is working properly... should just be a more even temp across all 4 cylinders... not really noticeable on the gauge normally

there was a new thermostat already on the car before i did the reroute and it still ran cooler. its not much cooler but anything in this area should help.

How does running cooler help?

... wow i guess there really are stupid questions out there...

Please school me on how running bellow optimum engine temperature is better.

https://www.miataturbo.net/attachmen...1&d=1369683037

Look Brony, please take this in the spirit of helpfulness with which it's offered.. You're not really setting a good example of how to Make Friends And Influence People here.

First off, you've come to a forum called MiataTURBO, but seem to be disinterested in both the Miata motor and turbocharging.

You've posted pics of not only a really ratty car, but also one which has been subjected to some really awful hack-job "mods" which have only served to detract from both the performance and the appearance of said car. The *only* thing you've done to the car which might make any sense, specifically the coolant re-route is actually unnecessary on your specific engine, as Mazda addressed the cooling issues which necessitated coolant re-routes on earlier engines. Furthermore, you cite having observed "it running cooler" as a result of this mod, which only serves to reinforce the impression that you genuinely Don't Get It. The coolant re-route mod is intended to address a problem that occurred when Mazda repurposed the Miata motors from their original Front Wheel Drive applications to the RWD Miata platform, which resulted in less than optimal cooling in the rearmost cylinders. If your thermostat worked before, the coolant temps being indicated on your incredibly vague stock dash gauge would not have changed an iota.

Beyond that, you've boasted of your ability to handle the "simple" fabrication required to swap a Rotary engine into your Miata, while displaying a serious lack of such skills on the butcher-job "mods" you've performed. Your dismissal of the complexity of the modifications required for the swap you've planned not only shows how woefully clueless and ill-equipped you are to perform such fabrication, but is also a bit of an insult to the folks here who ARE capable of such work. Do you really think you're ready to weld an aluminum oil pan? Have you *ever* TIG welded, or even seen a TIG welder before? On the odd chance you are qualified to do so, where were those skills and knowledge when you hacked up your cam cover, or plumbed your oiling system with 3/8ths fuel line and worm clamps?

Finally, there's the Preposterousness Thing. You appear to financially have neither a pot to piss in, nor a window to throw it out of, as evidenced by the neglect to repair the body-work and ragged top (BTW, "the rag top is too heavy, so you're going with a hard top instead"?? Serious?) and yet you're here spouting off about your plans to pull off a complicated and expensive Rotary swap?

All of these things combined really don't do much to enhance your credibility, which here on MiataTurbo is not only valued, but frankly, required, and that's sort of why you've had a chilly reception. Add to that your generally douchey demeanor, and I don't see your future here being a bright one.

If you're genuinely committed to the Rotary swap you've been talking about, there are probably other forums which will prove to be more helpful to you. On the other hand, if you'd prefer to turn that turd of a car into a stupidly fast and efficient car by following the Forced Induction model which has already been sorted out by perhaps the most knowledgeable and experienced people in the field, then knock off the stupid talk and asshole attitude, acknowledge that you have a lot to learn and then START LEARNING.

Credibility and respect are not things you can just claim, especially when your actions all point squarely in the opposite direction, and definitely not in a crowd full of people who DO know what they're talking about. So knock it off, take a deep breath, consider the possibility that you might not know what you're talking about. Ok? Just consider it.

+1 to everything except the "01 doesn't need a re-route since mazda addressed it" part. They didn't fix the problem or address it, they simply made it less drastic or bad. Ideally all miatas should run the 94-00 head gasket and a proper coolant re-route out the back of the head for even flow and cooling across all 4 cylinders.

Now coming to a garage near you with a rotary engine.


https://www.miataturbo.net/attachmen...ine=1367250982

One last thing-

Note that *I* am technically a "stupid noob" myself, both to this forum and to turbocharging a Miata, and yet I've been treated really kindly here on MT. Why? I'd like to think its because I acknowledge that I DON'T know everything, don't try to front like I do, and try to answer my own questions before asking dumb shit that's been covered before. That's all it takes, a little baseline knowledge, a little research, a little humility, and a sense of humor. The folks who show up here with those same qualities are almost always warmly welcomed, while those without them have a much less positive experience.

I stand corrected. Thanks.

Its pretty funny when u think about it, instead of fixing the problem mazda simply blocked the flow to the first 2 cylinders to increase the flow to the last 2. And then 2 years later they came up with the MSM :fawk:.


Thats because of the pony. :)

im not trying to piss on the bee hive. look you fellas are the ones that came at me. i my be a noob to forums but not to mechanics and fabrication. now i am not claiming to be a professional in either, i just have alot experience in both. i am not claiming to know it all and if i did i sure as hell wouldn't be here talking to you guys. i am just planning on making my "TURD" it into a DD track car and i stand by my decision for the swap. frankly i can care less about all the opinions on this or any other forum. i am here because i respect the builds and tech on this forum more then others and i am not going to let a few hatters change that.

So Mr. not noob to mechanics and fabrics, tell me how running bellow optimum temp is good for performance?

If you did a reroute on a vvt engine without switching out the head gasket for a 94-97 one then you made the problem worse on your engine. Mazda changed the design of the head gasket on 01-05' miatas in order to change the flow of the coolant to improve them cooling issue. It was not a total fix like the reroute but it was better. The problem is that if you do the reroute with the new head gasket it does not perform normally because the coolant path is totally different.

I'm reminded of a famous quote by Alexander Woollcott; "(s)he was like a sinking ship firing on the rescuers."

I suppose you could just disregard what I've said, and just write me off as a "hatter". (I do wear a lot of hats, when you have a shaved head and drive with the top down in Florida it's kind of a must..)

Clearly I've underestimated your mechanics and fabrics skills, and for that I apologize. You know what they say about presuming such things; "when you presume you make a pres of u and me." Or y'know, something like that.

So tell us more about you and your project. Where are you from? What's your native language? What do you do when not improving on the dumb stuff that the factory engineers do, like installing hood latches, not mounting the air filter next to a poorly shielded exhaust manifold, mounting the oil filter down under the car where they also put the oil drain, or specifying ridiculous operating temps on an aluminum-headed motor?

What's the plan for your daily driver/racecar, aside from the simple rotary with ITBs swap? I know that a lot of folks have tried to make a combination daily driver/racecar before, and have found that the resulting car doesn't really excel at either, but you do seem like a different sort of guy, and I think you can pull it off. I mean, you *do* have a slick set of aero-catches already; you're half way there before even starting!

Like I said in my earlier post, I most assuredly don't know everything, especially when it comes to operating temps and stuff. What's the benefit of making the motor run cooler? I genuinely am unclear on this.

Welcome to the forum. Sorry for making a bunch of dumb assumptions based only on a few pics.

Not a fan of rotary but good luck and welcome to the forum

dannng pink. 1 post in and you jumped on the horse. I also thought you got on him a little prematurely but you smoked him out of his hole pretty quickly.

Welcome to mt! stick around and show us the mad tyyyyyyyyyyyyyyte rotery swap. you're all over the place kid. think before you "speak". "STUPID V8" and then flip flopping to saying they are alright is evidence of you letting your asshole speak too much. chilllllll bro.