Me and my mate fitted our act gauges today. Mine a 200bhp s2 with bigger ic and my mates a 175bhp van with standard ic and here are our temps.

First run the van...

Idle 22'c
around town (not using turbo) between 23'c and 28'c
Booting it down dual carrageways on 18psi 40'c - 55'c


My car...

Idle 17'c
Around town (not using turbo) between 19'c and 26'c
Booting down dual carrageways on 14psi 35'c - 50'c


Are these average temps ? I dont have a clue what good temps or bad temps are ??!!


Cheers
Sam

 

Hi Sam,

What was the ambient temperature the day you did the tests?, this is important. It’s starting to get colder now, so your air temps are going to be lower than if you'd done the same tests in the summer.

 

are you running a pace interwarmer?

 

Can't really compare two of these guages as they tend to differ a bit anyway. Only proper way of doing it is to use thermocouples.

Our FRST runs a standard cooler and the ACT's are down about the 35-40 deg but then the ambient temperature is quite low. Come summer it will be off the guage before I shift out of second gear

 

different boost pressure will also effect the temperature.

there was a good test in the performance ford rs turbo special magazine.

 

can i ask a dumb question........why do people need/use act guages ?

how do they help ??

 

Handy info to have. As is a boost guage. You don't need them but they are usefull. If my charge temps are over a certain point I don't gun it to help protect the engine.

 

I'd say they are very poor results to be honest,unless you're in Phoenix,AZ and its 45C in the shade!!!!At National Day last August ,running 18 psi of boost I never seen over 32 C,and thats after 15 minutes of balls to the wall track driving.Regards Micky

 

idle measurments are meaningless.

55 degrees is nothing to be worried about. Check in summer though

 

Those temps were from during the day on my way home last night they droped rapidly !

Normal driving not using the turbo 13'c - 15'c max and booting it 30'c max.


I would recomend anyone with a turbo to get one as would i a boost gauge, it lets you know that bit more whats going on


Cheers
Sam

 

My act gauge was reading 5 degrees this morning on way to work it was bloody freezing though lovely icy roads and trying to get to work quick dont go well normally i see gauge reading around 30 degrees in the summer but thats only running 17 psi at moment

 

In my opinion...



That is bloody terrible, especially at this time of year. As an example, running double the amount of boost as you and a bigger turbo, the most I saw at Bruntingthorpe going from 1st gear to the very top of 5th was 25c, not bad considering the ambient temperature was around 15c.

You will be seeing 70c+ in summer.

 

Used the RS for work last Thursday and on the way home (it was cold outside) @90mph in 4th full boost (25psi) 17c. Pace front mount

 

Dunno what the ACT's are on my Escort. Haven't seen it since just before TRAX Hope it's still in my mums garage where I left it

 

my erst running on a charge cooler at 15psi and i dont see the difference in the summer or winter. Temperature stay at 17c when cold and 34c when booting it