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View Full Version : Coolant reroute on a California car?



mx54life
02-14-2015, 06:21 PM
To those who live in Cali, what coolant reroute you guys use? I have been reading on this topic and so far I see that M-tuned coolant reroute is the only one that would work without deleting the EGR tube. But Begi says they can make their's work too. Can you guys post some pics of your reroute please? thanks in advance.

kung fu jesus
02-14-2015, 07:56 PM
M tuned was the kit I saw most living out there. I like BEGI, but I have concerns about their products' fit and construction.

Hyper
02-14-2015, 08:23 PM
One of these days i may design a coldside reroute for you guys.

mx54life
02-15-2015, 12:53 AM
One of these days i may design a coldside reroute for you guys.

Do it now please? I want the Begi design if possible.

Hyper
02-15-2015, 01:04 AM
Do it now please? I want the Begi design if possible.


What is the begi design?? Show me.

mx54life
02-15-2015, 01:27 AM
What is the begi design?? Show me.

The one made by Bell Engineering but the kit is not EGR compatible. The reason I like their design is that the hose is routed on the intake side. I have a JRSC M45 so there is so much clutter on the exhaust side already.

Hyper
02-15-2015, 10:32 AM
The one made by Bell Engineering but the kit is not EGR compatible. The reason I like their design is that the hose is routed on the intake side. I have a JRSC M45 so there is so much clutter on the exhaust side already.

search for a guy named skou and his coolant concept. It is awesome!!!

As for coolant reroutes. Alex (Speedworks) and I are designing a coldside reroute, you should look at his build thread

CooperD
02-17-2015, 10:17 PM
Talk to Moti at Blackbird Fabworx. He did my coolant reroute when he installed my FFS supercharger. It routes around the hot side, but clears everything in the car and works with the heater. Awesome fab job.

CooperD
02-17-2015, 10:46 PM
Moti's handiwork (via a bad cell phone pic). 13501

Hyper
02-17-2015, 11:29 PM
I also have a hot side reroute, but I am working on a new coldsite reroute concept for my new engine build. Here are pics of the hot side coolant reroute in my album page http://mazdaroadster.net/album.php?albumid=103&page=2

mx54life
02-18-2015, 01:34 AM
Why is I am seeing some pics of the M-tuned reroute kit plumb over the intake/cold side with one long single rubber tube? I am getting confused. Anyhow thanks for the pics and thoughts guys. I just emailed Gary at TDR to clear this out.

Malibu Q
02-18-2015, 07:20 AM
Check out RevLimiter's blog. He has the cold side reroute and uses a long Cadillac Escalade hose.

mx54life
02-18-2015, 12:00 PM
Check out RevLimiter's blog. He has the cold side reroute and uses a long Cadillac Escalade hose.

I did it's his car that got my attention on this thing. But he uses the BEGI set-up. I can't as it does not support the use of the EGR pipe coz' the way the pipe is located over the coolant cover thus with the extension piece that comes from BEGI the pipe needs to be re bent/extended to work. I can't eliminate the EGR either coz' I live in Cali and they already giving me hell on my JRSC which is in fact OBD compliant. I can only smog in a "Star Rated" center, they specify that on my DMV registration renewal letter lol. Then the stupid tech would take pics of my set up in different location and yes he does look at that header location carefully to see if the EGR tube is connected.

Any how TDR just confirmed with me that the M-tuned kit's tube they sell runs over the intake side. So I guess the M-tuned kit can run either side just depends on who sells them. As we all know the Miata specific parts for M-tuned kit can be purchased separately for those this who are DIY. But the price difference/saving is not great + the hassle of running around for parts.

Hyper
02-18-2015, 12:08 PM
I did it's his car that got my attention on this thing. But he uses the BEGI set-up. I can't as it does not support the use of the EGR pipe coz' the way the pipe is located over the coolant cover thus with the extension piece that comes from BEGI the pipe needs to be re bent/extended to work. I can't eliminate the EGR either coz' I live in Cali and they already giving me hell on my JRSC which is in fact OBD compliant. I can only smog in a "Star Rated" center, they specify that on my DMV registration renewal letter lol. Then the stupid tech would take pics of my set up in different location and yes he does look at that header location carefully to see if the EGR tube is connected.

Any how TDR just confirmed with me that the M-tuned kit's tube they sell runs over the intake side. So I guess the M-tuned kit can run either side just depends on who sells them. As we all know the Miata specific parts for M-tuned kit can be purchased separately for those this who are DIY. But the price difference/saving is not great + the hassle of running around for parts.

Does your car have the supercharger on the exhaust side above the exhaust header? Where is your build thread??

mx54life
02-18-2015, 01:54 PM
The SC is on the hot/exhaust side. Ha lol no build thread I am not sure what to call it. I will come up with something in a few days. Just collecting all the necessary parts to come in so I can put the carbon the wheels and have it resprayed.

mx54life
03-04-2015, 07:43 PM
So as I was just about ready to pull the trigger on this last night I came to realize that I have not address the question of which of the two coolant reroute design is the easiest to change thermostat. M-tuned or Begi? That the use of a separate thermostat body/holder or the Kia thermostat housing? Thanks guys.

Hyper
03-04-2015, 09:39 PM
For best performance You want the t-stat in the cylinder head. The problem is to remove the t-stat from the back of the head is a freaking issue plus with the Begi spacer you will have very little space to swap parts there. The m-tune reroute has a universal remote t-stat so that you don't have to go through this headache. You can also buy the remote t-stat housing from jeg's and build your own coolant reroute.

Hyper
03-04-2015, 09:44 PM
Check it out

http://www.jegs.com/webapp/wcs/stores/servlet/KeywordSearchCmd?storeId=10001&catalogId=10002&langId=-1&Ntk=all&Jnar=0&itemPerPage=60&Ne=1%2B2%2B3%2B13%2B1147708&searchTerm=Inline+thermostat+housing

mx54life
03-04-2015, 11:29 PM
For best performance You want the t-stat in the cylinder head. The problem is to remove the t-stat from the back of the head is a freaking issue plus with the Begi spacer you will have very little space to swap parts there. The m-tune reroute has a universal remote t-stat so that you don't have to go through this headache. You can also buy the remote t-stat housing from jeg's and build your own coolant reroute.


Thanks for the insight. I was really wondering about this. My engine is out so installation is not the issue but rather down the road when I have to replace the t-stat/thermostat.

Now as with regards to the t-stat being out of the cylinder head, the stock front neck also places the the it out of the head doesn't it so my question is how far should the t-stat be from the head to make it perform well?

freedomgli
03-05-2015, 12:04 PM
No need to reinvent the wheel here or boggle your mind with all the details. Unless you're seriously budget constrained just get the M-tuned reroute and be done with it. If it works good enough for Flyin' Miata and 949Racing and Trackspeed Engineering then it's good enough for you. I've never been fond of BEGI but I know they have their supporters. And I also know there are people who are determined to piece together their own kit to save a few bucks. But seriously, just get the M-tuned reroute and then you won't have to think about it anymore. Alternatively, feel free to spend hours more reading, researching, forming your own opinion, doubting, forming new opinion and maybe end up back at square one. Below is some good reading to get you started if you want to go down that route instead.

Why You NEED a Reroute (and why it should NOT be a BEGI racer reroute) (http://www.miataturbo.net/engine-performance-56/why-you-need-reroute-why-should-not-begi-racer-reroute-77744/)

Coolant mother f**king reroute (http://www.miataturbo.net/race-prep-75/coolant-mother-f%2A%2Aking-reroute-59583/)

Reroute hose; kia neck to radiator, no hard line needed (http://www.miataturbo.net/useful-saved-posts-8/reroute-hose%3B-kia-neck-radiator-no-hard-line-needed-46698/)

M-Tuned Coolant Bypass Installation Tips (http://www.miataturbo.net/engine-performance-56/m-tuned-coolant-bypass-installation-tips-74853/)

CNC Machined Coolant Reroute Spacers with Hose Barb - Now with 100% more 1.6 fitment! (http://www.miataturbo.net/miata-parts-sale-trade-5/cnc-machined-coolant-reroute-spacers-hose-barb-now-100%25-more-1-6-fitment-82451/)

AN converted coolant reroute brought to you by a 1.6L powered FC (http://www.miataturbo.net/engine-performance-56/converted-coolant-reroute-brought-you-1-6l-powered-fc-69770/)

M-Tuned Coolant Reroute service parts (http://www.miataturbo.net/engine-performance-56/m-tuned-coolant-reroute-service-parts-75584/)

Coolant reroute ? (http://www.miataturbo.net/diy-turbo-discussion-14/coolant-reroute-77996/)

M-Tuned Coolant Reroute Replacement Seal (http://www.miataturbo.net/engine-performance-56/m-tuned-coolant-reroute-replacement-seal-61808/)

diy coolant reroute questions (http://www.miataturbo.net/engine-performance-56/diy-coolant-reroute-questions-77349/)

BeGI coolant reroute - Upper radiator S-hose fitment issues (http://www.miataturbo.net/general-miata-chat-9/begi-coolant-reroute-upper-radiator-s-hose-fitment-issues-74311/page2/)

Track car reroute Q's [ again ] (http://www.miataturbo.net/engine-performance-56/track-car-reroute-qs-%5B-%5Bi%5Dagain%5B-i%5D-%5D-60939/)

Help, coolant leak on the back of the head with reroute (http://www.miataturbo.net/engine-performance-56/help-coolant-leak-back-head-reroute-70031/)

DIY Coolant Reroute Shopping List (http://forum.miata.net/vb/showthread.php?t=548423)

Coolant Reroute - with a twist? (http://forum.miata.net/vb/showthread.php?t=510083)

Hyper
03-05-2015, 12:22 PM
Why are you putting the link to the Hyper Coolant reroute from miataturbo.net? Those people there talk a lot of nonsense and lies about my coolant reroute set up simply because my design is very simple as I don't use a thermostat spacer, oil warmer and lines, and the heater.

Also, I don't want to start a debate here nor I care about coolant reroute discussions anymore so I will appreciate if you remove the link from miataturbo.net. Thanks a lot.

EDIT: OP you seen to know little about miata coolant reroutes. My best answer to you is to visit a local junkyard and look at FWD Mazda protege, Kia Sephia. If you want to do a coolant reroute look at the coolant path in those engines and try to do the same in your miata. Once you'll learn to understand how it works in a FWD car, you'll realize it very simple to design a coolant reroute for your miata.

freedomgli
03-05-2015, 01:59 PM
. Once you'll learn to understand how it works in a FWD car, you'll realize it very simple to design a coolant reroute for your miata.

There is no need to design one when M-tuned has already done it for us.

freedomgli
03-05-2015, 02:04 PM
Why are you putting the link to the Hyper Coolant reroute from miataturbo.net?

Because despite all the arguments that thread contains useful technical information for anyone contemplating doing something other than the tried and true M-tuned reroute. But to make you happy I've edited my post. I'm awesome like that [emoji473]

Hyper
03-05-2015, 03:24 PM
Thanks a lot freedomgli

I put another coolant reroute link that talks about the mixing manifold. I put it here for reference since it was not included in your previous post.

http://solomiata.com/CoolantReroute.html

mx54life
03-05-2015, 04:49 PM
Thank you so much guys for the info and patience. I am just making sure that I am not repeating somebody else mistake. It looks like M-tuned is indeed the better of the two.