Turbo charge air temperatures?

[driverswanted]

I want to measure delta Temperature across an intercooler. The sensors I want to use are small transister style packages that have a upper temperature limit before they fail. Does anyone know what the charge air temperatures reach on 1st generation engines between the turbo and intercooler?

 

[JLEONARD]

I have some cummins specs at work that I can look up tomorrow.

Jay

 

[cerberusiam]

The highest numbers I have seen are 350 to 400 pre IC and 150 to 200 post IC. Much more than that at either place and the pistons have a tendency to start melting. With the 400/200 the EGT's were getting way out of control.

 

[BushWakr - RIP]

I'll toss my hat in with 'cerb... . I have also heard that you can see 400*F or more if you are really way out beyond "the map" on a turbo... that's the IC inlet of course...



pb... .

 

[driverswanted]

Thanks for the replies. This means I'll have to go to thermocouple sensors instead of IC sensors.

Pastor Bob,

I bought the Bosch 190's from you for my 4BTA (CPL 767). They are getting installed this next week along with a 3200 rpm governor spring. I have a homemade dial indicator plunger measuring tool for my VWs. Should I use that to set the 190's? Any suggestions on where to start? If I recall correctly, you suggested to try 15-17 degrees? I also wrote a number of 1. 4 down. Was that millimeters? I have a HY35W and two Volvo intercoolers. I'd like to keep the intercooler pressures below 25 psi.

 

[JLEONARD]

Data from a 1994 Cummins spec sheet for cooing system design shows:

160 hp engine 265 F at 18 psi (2500 rpm) 220 F at 12 psi (1600 rpm)

230 hp engine 338 F at 26. 5 psi (2300 rpm) 300 F at 19. 5 psi (1600 rpm)



Those are the low and high on this sheet... and of course those are stock engines... . seems in line with what you guys have seen

Jay