PDA

View Full Version : Coolant reroute kit?


FormerDatsun510Man
04-03-2007, 07:26 AM
Tom, just wondering if you have thought about offering a coolant reroute kit for both Hotside and Coldside owners. I am thinking about doing this for the engine I am putting in next since the current engine seemed to be sensitive to overheating. Do you think the coolant reroute is useful as a preventative measure against engine overheating, particularly higher power setups?

Bill

Tom @ Fast Forward
04-03-2007, 07:49 AM
I think anything you can do to take heat out of the engine is a good thing. Mike was going to let me know about the parts he used to do the re-route on Jim's hotside. Looked good and works fine, I'm sure. Just not sure if there would be room on a coldside.

I am still debating with myself how and where I want to branch out for things other than the SC kits and parts. Radiators, clutches, suspension, etc. My conclusion is that I would rather have other people like TDR, Goodwin, Moss, etc sell that stuff. The re-route might get my attention later on down the road. If you want to put a re-route kit together and sell it here on my forum, I would have no problem with that.

As soon as I get the dimension for the hotside intake manifold pipe, I will make those, test it on Chuck's car and sell them. I would rather do that than the re-route kit.

Banshee
04-03-2007, 08:01 AM
Tom, I think a reroute kit would be nice and marketable.

However, I think your that reputation for fast, prompt, courteous service is what made FFS successful. I don't see how you can branch to radiators, suspension, etc, and still keep up the same level of service and attention.

Unless you got more help.

Kyp J
04-03-2007, 10:50 AM
There are a lot of pros and cons to reroute methods and I think it is one of those things that inspires "opinion wars" on Mnet. Not that many people have actually done it, but there are a lot of opinions on what is good enough.

If you do like I did and route the main return and thermostat from the back of the engine, you make it very difficult to get to the thermostat to fix leaks or replace it.

Tom @ Fast Forward
04-03-2007, 06:51 PM
Tom, I think a reroute kit would be nice and marketable.

However, I think your that reputation for fast, prompt, courteous service is what made FFS successful. I don't see how you can branch to radiators, suspension, etc, and still keep up the same level of service and attention.

Unless you got more help.

That would be my fear. I would rather stick with those things I can loose the most money on; err, make the most money on. ;) Right now I am only working 23 hours a day 7 days a week. Not sure I have time left for more projects. I really want to finish the hotside before I start testing the NC coldside.

Tom @ Fast Forward
04-04-2007, 06:15 AM
"opinion wars" on Mnet.

Opinion wars? On mnet? Never!!!:nopity: At least I never get involved in them. :angel:

Wayne-n-Fla
04-04-2007, 07:41 AM
http://users.telenet.be/miata/
Hope this opens , the last par. says restricting the flow out of the heater is BAD, then turns right around and says it's "a good thing" equals to small oil cooler ??
From the diagram in the last Par. it looks like just rerouting the heater water into the return system instead of adding it to the cooler water would be semi simple ? as to it's effect on cooling ?????

Just a thought

Kyp J
04-04-2007, 09:10 AM
BEGi, another maker of FI kits has a kit to do the heater return to the main radiator return. Also, he has some sort of kit that eliminates hoses and things that get in the way of turbo kits that he also sells. I don't know if mentioning competitors is allowed, but they can be found in the advertisers on Mnet.

http://www.bellengineering.net/Pages/products_miata_parts.html

Tom @ Fast Forward
04-04-2007, 09:17 AM
I, for one, would appreciate it if competitive websites are not posted. Bell does anough advertising on mnet on a daily basis.

Kyp J
04-04-2007, 09:20 AM
I, for one, would appreciate it if competitive websites are not posted. Bell does anough advertising on mnet on a daily basis.

Sorry, won't happen again:frown:.

raceskier
04-04-2007, 11:12 AM
I really like Frank's coolant re-route. (The one Wayne posted.) Pretty straightforward, no machine work to the head. I'm going to attempt a version of it this summer. I have the spacer from Moss. It simply needs a tapped outlet for the heater, a port for the temp sensor and a relief cut for the thermostat. One of the other re-routes I've seen (can't remember where, someplace on Mnet?) takes the coolant outlet cover and saws it in half on a plane parallel to the thermostat flange surface. You then rotate the rad hose outlet to the desired orientation (hotside or coldside fitment) and weld the cover back together. Add some formed rad hoses from your FLAPS, maybe a straight length of aluminum tube and a blocking plate for the original rad outlet and your set. When I put it together, I'll take pics and post them.

Mathrips
04-09-2007, 12:52 PM
I have a 99 and did pretty much what Frank did but with the Coldside I chose to bring the water forward from the back of the head above the exhaust. It is pretty much a straight shot. I used the 1.6l outlet on the back of the head but put the thermostat right against the head, no spacer needed. My heater comes from the existing (Frank shows where to drill one?) fitting on the head. Perhaps some grave misconception that you folks can clear me up on but it works great so far. The one big suggestion I would make is that there needs to be a bead on the ends of whatever pipes you use to connect this up, to hold the hoses on. Without the bead you will think that all hose clamps are very tight but they will slip off anyway. This can lead to overheat and another head rebuild. You can guess how I know this.

Wayne-n-Fla
04-09-2007, 01:54 PM
A Question, I'm probably not seeing something from the re route link, but would bypassint the heater core for summer Mo.s and then routeing this water into the return {going into the top of the Rad.} system help any ?? sure looks like it would easier than trying to work on the back of the engine still in the car ???