LS1 Intake Air Temp Question

[1992rallysport]

What is a good average intake air temp that you would want to have? Ideally It would be ambient air temperature correct? I know it will very from car to car intake set up and what not. But the other day I was out cruising around and stopped by my shop. I hooked up my scanner and had intake temp of 110 degrees. That seams a little high, plus It doesn’t help that I think the intake tube is getting heat soaked from the upper rad hose being right under the intake tube. Any input would be great tks

[1BADAIR]

that seems about normal to me. check it while moving. would think 10-20 over ambient is pretty normal

[1992rallysport]

Good point I'll check it going down the road and see what it reads. I went up to the shop and scaned it for faults and started to look around at the data...but like you said it should go down as I go down the road. Tks

[meissen]

For what it's worth - assuming that the LT1 isn't THAT different, I just played back my DataMaster log from two nights ago. At idle, my IA Temp was 101*F, after 15 minutes of driving my IA Temp went down to 82.9, then as I idled in the driveway it krept up to 104.5.

[sman]

Mine gets up there. But with the SS hood bringing in cooler air once im up and moving it drops pretty quick to just a pinch above ambient.

I believe best power is made at like 57 degrees.

[98blackbeauty]

interesting, so the question here would be if best power is at 57* would it be worth ducting A/C air to intake an would you gain enough to offset A/C being used?.

[sman]

Good question, I might actually. IAT makes a difference, reference my first and second dyno pulls. 5hp/7ftlbs difference.

[Virtue]

my pillar guage was reading 150 during the dream cruise when it was like 90 outside. idk how correct that was tho...

[1992rallysport]

So I finally had a chance to go run around with my scanner in the car and see what intake temps are at. Idle or traffic it ranges from 110 to 120 degrees. So I thought I’ll drive it down some open roads and see if it goes down ……..ya right to about 95-100 cruising on this cool day. So I think I need to redesign my intake/ upper radiator hose design. Thanks guys for some caparisons specs.