My B20V manages to get up in the 120's any ideas on how to drop it down?

 

Spray the manifold with Freon or nitrous.

 

i dont see myself being able to do that while driving, sadly.

 

Hondata gasket
Re-Route coolant
CAI


Chances are that its only getting that high while cruzing and not much air is flowing through the manifold to cool it down. At WOT it is considerably cooler. If your looking for the effect of a cooler denser air charge you can relocate the IAT to the intake tube, as in the OBD-2 Civic's. I believe that this will give you a little more timing advance and richer mixture.

 

I have the Hondata shield.

What do you mean re-route the coolant? How do I go about doing this?

I have a SRI w/a stack on it. I noticed the IAT's getting up to about 128, IIRC on the DYNO w/the hood up. I'm know on the road the IAT's hardly get above 110, but that still seems kinda high. And I'm running a BLOX IM that has the IAT sensor on runner #1.

You think moving it to the SRI will help? Hmmm. Hmmm... I'll definitely give that a try, not clear what you mean by re-routing the coolant.

 

Think about why your manifold gets hot, then you will come up with the answer.

 

Well I dont have a FITV just the IACV. Unless youre saying the manifold gets hot due to cylinder head temperatures. Either way, please elaborate.

 

i usually bypass the iacv and tb coolant lines to keep the manifold a bit cooler. ive never logged temps so i cant say if it helps but ive havent had any negative affects

 

SRI uses air from under the hood. Most times this air is heated by the exhuast manifold/headers. Just one hot spot to think about

 

Running a cold air intake on my Civic dropped IAT's on the road by > 10 degrees F. (as compared to a short ram)

 

really, cruising should bring the temperatures down the most. WOT isnt all that bad unless you make a **** ton of power and idle is bad while sitting in traffic.

relocating the IAT sensor to the intake pipe will relieve some of the heatsoak you get from having the IAT sensor on the intake manifold. The closer you get to the engine, the more heatsoak you will get.

 

Why would you relocate the sensor. Who cares what the ambient temp is, aren't you only interested in what it is by the time it goes into the cyls?

 

i try that also.. but it makes my car idle around 1500 rmp. like its always trying to still warm up. how dose your car idle?

 

it idles around 1,000 rpms. did you adjust the idle screw on the tb?

 

Yes. But having the IAT in the stock location doesn't get the actual intake temps either due to heat soaking.

 

it makes tuning a little easier.

 

with the throttle mostly closed there isnt much flow, so **** gets hot. IAT's are 90% always hotter during cruise and at idle. When you start romping on it, you get air flow moving and iat's cool off.

turbo cars are a little different, they will initially cool off, then heat up.

 

i havent had those problems. CAI ftw

 

How does one run a CAI and utilize a velocity stack?

 

mine just kind of fit, lol

 

Ok, new question.

How do I lower IAT's?

I dont think running a CAI and having the v.stack at the end is going to be very beneficial. Proof that it works please?

 

Besides the CAI, have you considered a larger radiator, or using a thermostat+fan switch that activates at a lower temperature threshold?

Perhap even an oil cooler, if your not already using these things. I'm mearly thinking of ways to lower temperatures that effect underhood temperatures effecting your IAT's.

 

CAI will drop iat ALOT.

been there, logged that.

 

Oh no Blake, I wasnt saying it wouldnt. I would first recommend the CAI, then if theirs still an issue the OP can pursue further upgrades as mentioned.

 

depends on what lengths you are looking to go to in order to just drop IAT. But really, if you are having problems maintaining a decent temp then i would look for a real problem that is keeping the inlet temps so hot.

IAT's are not too much of a worry for most people. We do not generate the kind of heat that say a roots style charger produces which dramatically increases intake temps.

Once i get the AEM unit in the car, i am planning on running two IAT sensors and maybe we can get some data on how much heatsoak really affects the reading.