Turbo intake temp
Turbo Mini Forums

Just got round to fitting my air intake temp gauge. The sensor is tapped into the plenum (obviously reading the temp of the cooled air after the cooler) however I need to set the warning light on the gauge for maximum temp, so I can avoid melting 1. Expensive engine parts 2. My wifes patience...again!
Can anyone give me some thoughts on this, or if anyone runs a gauge, what operating temps to do see?

Thanks

That should be 'do you see'.......too much alcohol, not enough sleep.

I am about to fit one...

what sort of figures are you seeing?

alex

AlexF

Only been out in the evening..
Ranged from 11C climbed to 16/17C on a blast and went up to 21C full throttle, full boost.....

It will be a different story in the daytime.
It will be a REALLY different story on a hot summers day!

That's quite impressive ! What intercooler ? and what kind of boost you running ?

Phil.

WWW.TURBO-MINI.COM

bear in mind at nite its bloody freezing just now, i was out last nite, and my humble std radiator was over-cooling... tho i may be running slightly rich.

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

yeah what intercooler is that and how much boost?

AlexF

I'm running a bespoke charge cooler from PACE. I'm also running 16psi.

I did say that it was at night and that it would be a totally different story 1 - in the daytime 2- in summer. Thats why I need some kind of comparison/ reference so I can set the temp warning.


Please, can anyone suggest a maximum safe temp?

Many thanks

If you check out this link you can see the charge cooler, you will notice that it uses quite a large pre-rad (the smaller rad is an auxillary in line off the main rad)

http://www.hpphoto.com/servlet/com.hp.HPGu...ssword=80776462

Edited by AlexF2003 on 21st Mar, 2004.

well the lower the better

over 30-40 u start to loose power and risk det.

But then again there is no intercooler as std, and temps must be AWFUL!

alex

AlexF

alex i think you'll find it even higher than that, just depends on the engine spec.
standard temps with out a cooler are around 160 degress i believe.

Edited by Miniwilliams on 21st Mar, 2004.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

I didnt specualte what the std setup makes... but I calculate it on apaper to be well over 100 degrees C!!!!

Alex

AlexF

Alex, my folt what i meant was you'll find the 30-40 degress is not a bad intake temp, it will probably be hotter than that before things met.

I've see high temps on the rolling road before now.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

I put a temp probe before and after my intercooler and I think I got about 95 before the cooler and 30 after it.

That was a Modified R5 GT cooler and I was running about 15psi.

I'm running nearer 20psi of boost now with a Isuzu Trooper cooler So I might get the probes in again to see what it's like.

I can bring measurement gear to the rolling road day if anyone is interested.

Wil

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Thanks guys...I think I'll set it at 40C...that should give me ample warning before things go boom.

In all fairness its not really a guage which is going to help u detect if somthing has gone wrong with your engine...

Exguast gas temp would be better for that...

It gives a good idea about ur intercooler efficiency thou.

alex

AlexF

At Avonpark last year, I saw inlet temps of 75 degrees

Team Racing

Jim and how was your engine after that?? fine i bet!

Edited by Miniwilliams on 23rd Mar, 2004.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

yes fine mate, and that was with a std bk450 head gaskget and std 10 year old head studs

got a bigger intercooler now, as that was with the series 2 rs turbo intercooler.

Team Racing

it does go to show that even if you see high temps it doesn't mean no more engine, nice bit of info Jim.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

What kind of intake temp gauge, are you using?

http://www.ktv.no/~pjb-ktv/

Jim's got data logging on his ECU the flash git

High temps mean less power... that all... if you run in to Det thats another issue altogether, but properly setup you should be getting det anyway!

Alex

AlexF

I'm running a SPA dual digital - intake temp and boost pressure.
Has anyone experimented with the C02, Nos spray bars onto the intercooler to reduce temp/ improve bhp figures?

I have seen these forsale, but thought them to be a very bad idea. If you spray C02 on your intercooler, yes it will cool it down, but where will the c02 go? if it goes into the air intake, the engine will loose loads of power

Team Racing

why will the engine lose loads of power if co2 gets into it? might well be being thick, but surely since co2 cotains oxygen, then it cant be that bad, its not like its starving the car of air or anything?

anybody smarter than me care to explain???

Pete

And on the 7th day........... God created turbochargers!