Originally posted by slicks
Mine was 160 while driving Whatever works for whoever I guess, I could feel the difference with mine though. Picked up about 2 mph at the track too.
I mean the difference of the inlet temperature and what it is after it passes the turbo will not be very different no matter what you inlet change is, unless you can some up with a 50* os so difference
So your only going to see a very small temp drop at the actual throttle body
No need to apologize no one died. What kind of temps do compressor housings see? At high boost is the compressor housing hotter or cooler than the compressed air?I am sorry to inform you of this, but heat form the turbo housing and impeeler brought on by the heat transfer from the exhaust and under hood temperatures will add to this temperature rise.
Thats why I have alot of money(to me) in a custom liquid intercooler set up. I can hold 10 gallons of ice water in insulated tanks. I run dual: pumps, 1/2" supplies, and 1/2" return lines. On my old set up of running a stretch w/o a scoop, my up pipe to the throttle body would be too hot to touch after a ran. I ran 11.30@118.6 with that set up. On my new set up my up pipe is cool to the touch after a run. Infact its cooler than my CAI pipe. Right now I'm fighting fuel system problems but have already beat my old 1/8th mile times(even though the car is running like crap). I hope to get this fixed soon so I can start trying to tune the new set up.We found tha tinlet temp had very little effect on temperatures seen at the Throttle body, but the Temperature diffenece at the Intercooler mad a husge diffenence. So, the the Air Temperatures are much more sensitive to the intercooler temps that inlet temp.
Thgis is pretty much where I disagree. I agree with most of everythign else you said, especially on concentrating on the intercooler.Originally posted by postal
10 degrees hotter into the turbo will be 10 degrees hotter coming out. ect ect.
I say take as much heat out of the air going into the motor as practical. You got to decide what you consider practical .
Now since our cars are intercooled you should only see a fraction of the temp drop going into the throttle body. Lets say your cold air kit lowers turbo inlet temps 20 degrees. Your intercooler was going to take care of about lets say 14 to 16 degrees of that anyway. So your only going to see a very small temp drop at the actual throttle body. I'll bet what razor is saying about it not working at the track is correct and its because of this.
HTH: Jason
Originally posted by Kyle F
Now, say we can super cool the air pre turbo. With a kit similar to yours to cool the inlet pipe to sub 40*F, then the air would probably cool the impeller down and the housing. You woul dprobably see temps around only 150* pre intercooler at full boost. Say the interccoler is gettign good air on an 80* day, it would be concievable for the intake air to be aroun 90*F at the Throttle body
With a kit similar to yours to cool the inlet pipe to sub 40*F, then the air would probably cool the impeller down and the housing
Originally posted by postal
I'm going to upgrade my fuel system( I was dropping to 40psi fuel pressure @ 25 psi of boost). Hopefully this will fix the stumble and I can then start trying to tune the car out.