WOT IAT@ TEMPS.



Post yours at what time of the day and what was the temps




WOT IAT2 at 115*, coollent at 190*. on a 85* day. MY MODS ARE DUAL PASS HE, DUAL PASS ENDPLATE, OPTION B


Post Edited. Whats your MODS.

 

so many factors involved. gonna be hard to get straight comparisons.
but generally ill see my IAT2 raise about 30* over the course of a 1/4 mile run.
2.8 60lb i/dp/e hptuned

 

afternoon drive home from work...

tend to see between 100-150 on current atlanta temps

 

The only Reason im asking is i want to see what people are seeing. from stock to different levels of mods.

 

starting 115 degree's
ending 131

2.8, water injection.

 

Whats your outside Temps?

 

starting from 1st through 4th til about 120 mph, i see from 115 to 140

with current mods in my signature minus new aftercooler pump running at ambient temp of 80 or so. IAT2 Temps should be lower now though, since i also put the laminovas in the wrong orientation when i did that IAT2 test. I've been doing some small 3rd gear WOT and i haven't seen over 130 yet, but i have yet to do a full out run.

 

when i looked at that run, it was 87-90 degree's on the dyno

 

I have been watching mine very closely the last two weeks. I see AIT2@120-130 cruising. 140-170 WOT. If the engine has been running a short time, I will see it drop back to 130 after it raises to 170 on a run. If it has had over 30-40 minutes to heat up I will see consistant 140 temps. Also, I notice around 160 if it is left to idle. I never have seen it remain below 120 without cruising and airflow after the coolant has had time to heat up. Reguardless of outside temp those numbers have been fairly consistant. between 60-80 AIT1 temps on my observations.

 

Do you have any cooling mods other then Water Injection.

 

holy crap thats hot.
if you have seen the IAT2 timing reduction chart youd be crying right now.
thats killing your power.

that must be in some pretty warm weather no?

 

80 degrees about

2nd gear (40 mph) to end of 3rd pull
Start: 110-115
End: 150-160

Cooling mods...none
2.5 pulley

 

gawd. im starting to like living up here in the freezer a little more hehe

 

IAT2* 141 or something like that.... :enterArea47:

It was 95* on the dyno!

2.85 no cooling mods!

 

distilled water in the aftercooler instead of the mix of crap gm puts in there.

other than that. nope.

mdub, you're right.

 

I thought that is what you said!

 

Im thinking about going DI Water for myself also. I have access to Medical Grade DI water. So that would be great. All i can get free.

 

if the temps drop below freezing point, you have to change it out with a mix of anti freeze, or else it will crack the intake manifold, and the pump.

 

True. Good thing i dont have that problem in Los Angeles.

 

At the beginning of a 1/4 mile run my IAT2 would be 80-90 depending on ambient temp, at the end of the run it would be 120-130. I had 2.6" pulley, ported blower, cobra HE, and the dual pass intercooler mod running 19.75 psi boost. However now, I'm going to remove the stock intercooler pump, and replace it with a trunk mounted water pump, along with a 2-3 gallon water tank. With the much higher capacity pump, and a couple gallons of ice cold distilled water in the trunk, IAT2 should no longer be an enemy

 

Did you have the option B Setup?

 

The weather isn't that warm. That is why the HE isn't on yet. I installed the dual pass and should have got a better idea before it was on of what numbers I was seeing. I have been trying to figure out the issue. I have actually seen it hit 190 when I really pushed it. It was actually sitting closer to 155 cruising this afternoon. I think there is a problem somewhere that I want to sort out before adding the other element into the mix. Unless there is some way this is normal, I think my pump is dead or something is blocked. It is a lot of work I need to do figuring it out. I just can see how 190 is possible without a major error somewhere in the system.

When I put on the CA header I left off the heat shield. That wouldn't play a factor right? I'm not even sure the stock shield would fit, but I do get a lot of heat coming into the bay from the exhaust.

 

Did you put the laminovas in the right order on the dual pass endplate. the two smaller ones need to go into the middle while the two larger ones one the outsides of the intake.

 

i have found small things that effect the temps, but nothing that makes it that high other than a non-working fuel pump or blockage in the system. 190 is the same temp as the coolant in the engine, and it should never get that hot.

I've replaced 3 dented laminova tubes and only saw 5-10 degree improvement, then re-oriented the angle of the fins on the laminova tubes (large gap towards air inlets) and saw about a 5 degree improvement due that change.

Blown-4-banger, were those numbers achieved with the EXTREMELY ported blower from your how to? What quarter mile times were you pulling?

 

Yeah, the two little openings are in the middle and two open ends are on the outside. So, it goes from the pump to the middle small openings, out the outsides and up to a T... From the T to the option B tank and to the after cooler, then back to the pump. It should be set up right. I don't know how to tell if there is a blockage or the pump isn't working without a lot of effort. I mean unhooking a hose is going to leak a lot and make a mess before I can realize if it is forcing fluid out. The car is too noisy to listen for the pump. I can't isolate a block very easy.

I did mess up what I believe was the AC when installing it, I accidentally loosened the bleeder. I don't think that could hurt anything though. It is the metal tubes below the alternator. I am stupid yes, but I didn’t realize it was a bleeder nut because I was half asleep and I thought it was just holding the tubes in place. I loosen it and it woke me up quick. Suddenly steam and green fluid everywhere, that is the AC though right? I wish I had the stupid Haynes manual. I ordered it 7 weeks ago and it apparently doesn’t exist. Otherwise, I wouldn’t be guessing on stuff. This is just a hobby for me. I like to learn, but I f-up a lot.