Tested and Ready 70° and 75° Thermostat

[SVT_Blake]

Anri I would like to buy a 70* option. PM sent, just need to know the next step and where to send the $$$. Thank you

[bigjae46]

So we are thinking keep the engine operating above 175F/80C is optimal?

I would say yes.

[ac427]

I got one in the interests of head gasket longevity.

[CrookedCommie]

So we are thinking keep the engine operating above 175F/80C is optimal?

[karter16]

I thought it only did that on open loop start up.

Yep I'm pretty sure you're right.

A search of the code suggests that it might have some very minor effects on things like accel enrichment, but the only other side effect I can see is you'll slightly more easily trigger a "cold start" when restarting the engine when it's warm, which is neither here nor there.

Can't see anything in the mixture path that is affected by TMOT once in closed-loop operation (at that point it's all ambient pressure and intake air temp (plus exhaust temp for the CSL)).

[ac427]

Not sure, does DME maintain mixture based on coolant temps? Need to check data on how fast the oil temps came up. I'd like to avoid the hassle of having to block the grill during cooler events.

I thought it only did that on open loop start up.

[bigjae46]

Not sure, does DME maintain mixture based on coolant temps? Need to check data on how fast the oil temps came up. I'd like to avoid the hassle of having to block the grill during cooler events.

Not sure. I'd guess that it factors into the tune at least for emissions purposes which is why the engine with throw a code for a t-stat. I have an epic tune...I'd have to guess that it would not affect anything. I'm the wrong person to give a definitive answer.

[CrookedCommie]

Won't the car run rich? I don't see any benefit from running the coolant lower than 170f. If anything, it makes it THAT much more difficult to get the oil temps up. Sometimes takes me 3 laps to get to 210f oil temps and I'm using the stock thermostat.

Not sure, does DME maintain mixture based on coolant temps? Need to check data on how fast the oil temps came up. I'd like to avoid the hassle of having to block the grill during cooler events.

[bigjae46]

Is there any power benefit to running the S54 cooler than 175F/80C? At what temperature is too cold?

This is in regards to a race car, 55C motorsport thermostat has the car running at 165F/74C in the mornings and I suspect in colder weather will go even colder. At warm-up idle it will only get up to 140F. Thinking about swapping back to 80C so the S54 doesn't drop below 175F/80C at full tilt.

Won't the car run rich? I don't see any benefit from running the coolant lower than 170f. If anything, it makes it THAT much more difficult to get the oil temps up. Sometimes takes me 3 laps to get to 210f oil temps and I'm using the stock thermostat.

I've been thinking about going with a smaller radiator and much bigger oil cooler or a non-M radiator and a full face oil cooler on the back. I think the OEM M3 radiator is too big for track use with the OE ducting and fans deleted. The most efficient setup is to stack the oil cooler behind the radiator, the colder t-stat would likely provide a significant benefit in that setup.

[CrookedCommie]

Is there any power benefit to running the S54 cooler than 175F/80C? At what temperature is too cold?

This is in regards to a race car, 55C motorsport thermostat has the car running at 165F/74C in the mornings and I suspect in colder weather will go even colder. At warm-up idle it will only get up to 140F. Thinking about swapping back to 80C so the S54 doesn't drop below 175F/80C at full tilt.

[Anri]

Would you recommend heat wrap or ceramic heat powder coating for the headers to keep the radiation heat lower?

I always say "Every little helps" it will help to keep the radiant heat away from the block for sure.

I have done/tested every header coating on the market including Swain-Tech which I use only for look to be honest. Nothing
can beat heat shield or header wrap...I mean no coating in existence can get near to that efficiency.

If coating is a must, Swain-Tech is my choice over the rest. Also the silver header shield work very well as well with very clean look.

Regards
Anri

[Anri]

Anri is a super busy dude, took a while for mine, but I got it.

Fair enough point made though, just don't want anyone thinking he doesn't do what he promises. Anri is legit.

Thanks for your kind words. I have way too much on my plate with my current custom project, usually I wait till I get bulk
of parts to ship at ones, otherwise I will be at the post office every day....

I think you asked if I still have those for offer, yes still do.


Regards,
Anri.

[oceansize]

I have been waiting for mine to ship since May 9th. I have been following up once a week.. beware for anyone ordering. Usually don't like to put people on blast but this is getting ridiculous.

Anri is a super busy dude, took a while for mine, but I got it.

Fair enough point made though, just don't want anyone thinking he doesn't do what he promises. Anri is legit.

[samthejam]

I have been waiting for mine to ship since May 9th. I have been following up once a week.. beware for anyone ordering. Usually don't like to put people on blast but this is getting ridiculous.

Edit: Just got tracking #

[Cronenberged]

Thanks but what how does the AC Condenser affect engine temperature?

Sits forward of your radiator so if it’s dirty or clogged it will restrict air flow and your car won’t cool as efficiently.