It's nowhere near that bad, Karack. I was pleasantly surprised to see how tame it actually is; much more so than what we're used to with the Rx7's.

B

 

Auxiliary Injection; usually anything referring to water or alcohol injection.

B

 

I want to cautiously say that a bridge may even help with life expectancy for this engine. Time will tell. I think maybe Mazda put the sideseals too close to the combustion face and the bridge can help with cooling toward that area?
Anyone put FI on a bridged engine yet?

 

Probably not. I think I'm still the only one rolling around with one on the streets unless Brian has had some other takers. I would like to do FI on it, but money is tight right now with trying to buy a house and put a 20b in the RX7.

 

I think there is another somewhere. I almost bought one of Brian's bridge port engines but the deal fell wayside. Never kept track of where it went.

 

I think that's the one that went to Eric for testing.

 

We had a bridge port running at our nationals track event this year. He ended up having overheating issues and lost compression to one rotor.

 

what happened? The heat did the compression in or a side seal let go?
OD

 

I am pretty sure it was side seal failure. He was seeing temps of around 280F.

 

280F? Yikes.

 

I know, by the time I found out the damage was done. Unfortunately the driver was not aware of the dangers of such high temps.

 

huh? You mean he GOT to 280F. Dang thats a testimony in itself.
OD

 

It was a newly built motor. He then drove home some 150 km on one rotor.

 

Ouch, one thing that'll kill 'em quick, ours overdrives the engine fans and chucks some cooling fuel in any time it even creeps over 210F, 230F and it's starts to pull the rev limiter down too....

 

That'd be me and I will be posting updates to my build/racing blog.

 

COPYCAT!!!

lol... j/k. I'm sure it will work out just fine. Mine id doing great, I'm just having problems with other components on the car. You should bring it to deals gap next year, we'll make everyone jealous with our bridge ported... nes.

 

Definitely. However, i plan on driving the crap out of this motor. My goal is to hit at least 1 track a month (April-October) for next year.

 

Evans claims that an engine can safely get that hot with their NPG coolant as long as the oil temp is below 245F

 

Anybody use this stuff? I understand the theory behind it but Does it really work?

 

You should probably stay in the wading end of the pool

 

Lol

 

it has its place.

 

I have three gallons of the stuff sitting at home. Waiting to put it in, Ill do it when I do the engine, pump all coolant hoses and rad. Just got to blow out and flush the heater core the best I can.

 

Since I am trying to progress to the deep end I was foolishly hoping for more helpful information. This is like the cocky frat boy trying to haze the newb...LOL! I see a pattern in your posts.

 

People use it (including myself) and it works, but it is not a miracle coolant. Basically you can run your ECT hotter without all hell coming loose. Evans has a very high boiling temp which allows you to run lower pressure, or if you get a leak and loose pressure, the boiling temp doesnt drop to an unsafe temp causing boiling and engine failure like you would see with a traditional water based coolant. Consider the stuff a safety net. I would not intentionally run extra high ECT's, but if your in the middle of a race and look down to see your temp guage in the red zone, you can back off a little, let it drop and you have probably not done any serious damage. Also, if you spring a small leak and need to limp home, you can take the coolant cap loose so no pressure will build, you will loose less coolant and you should be able to make it home.