[QUOTE]Originally posted by shingles
[B]

where did you find the mat?

 

Here's a picture of xviper's new thermoprobe holder:



I'm sure he'll explain in more detail, but the idea is to insure that the probe is away from the walls of the intake tube and centered in the air stream.

It looks like it should do the trick!

Ted

 

Thanks Ted for posting that pic for me.
It bugged me enough that I wanted to make sure my previous recordings were OK and believable. So I made this probe holder to make sure it didn't touch the walls of the intake tube.
This was a much cooler day than the last one I did in the sweltering heat. Additionally, I removed the tube wrap and re-installed the bug screen as the only changes. As I had said previously, if the ambient temps were reasonable, like near 20*C, I would have expected the readings to indicate that PreTB air could be at or near ambient. Had I not removed the wrapping I think this could have been achieved. As is I came within 4-5*C of ambient in a combination of city and hiway driving (except for min. 31 where I was in the middle of downtown and got some high "street heat". Because of the difference in ambient from this run compared to the last hot weather run, I am confident that the probe from all previous recordings was within acceptable limits and was NOT getting abnormal conducted heat from the rubber tube.
Time Ambient Pre-TB
0min. 21.1 C 22.3
6 23.0 23.0
9 23.3 24.9
12 23.3 26.4
19 25.9 31.3
31 30.5 37.0
49 23.7 27.5

Looking back at the data, I am convinced that the single most important mod was the rad cover. This area, with the hood closed is like a pre-heating chamber. It is this area that the airbox draws from. The second (and to a lessor extent) most important is the intake tube wrap (I guess rubber is only a moderate heat conductor). And the other engine bay insulation doesn't hurt either. I've noticed since the addition of the insulation, that when I open the hood, I don't get that feeling that I just opened the door to my oven after the roast is done.

 

After being inspired by xviper in his recent threads I went ahead and quickly made a rad mat out of Reflectix. Here's a pic.



I already notice the lack of "oven heat", my butt dyno says wow nice VTEC kick and wow no slug feeling after idling for 2 minutes, but then again I'm a very optimistic kind of guy. I will be going to Willow Springs this weekend to see how it holds up in sweltering heat and race conditions. Thanks xviper!!!!

 

SteveUCI, your very welcome. Yours looks a heckuva lot neater than mine. Now I feel really embarrassed so I'll have to go out and redo it so it looks nicer.

I also removed the intake tube so I could proper wrap it with the styro-foil. It looks a lot neater now. I also took the opportunity when I had the tube off to stick my finger through the throttle after a good drive. It is HOT! HOT! HOT! in there. I'm glad I'm giving it as cool an air charge that I can to begin with. If I can get a high temp thermometer, I'll get an intake manifold temp reading.

 

xviper,

i know this is a really old thread. but i have a question. do you remember if your car buck with this setup.

i'm trying an experiment to stop the bucking, due to heat soak.

also, i can't see the pictures anymore can you repost them.

Thanks

 

would it be possible to host a picture of the covered radiator again?

 

Regarding the bucking issue, I may not be a good person to ask about this as I'm of the opinion that this can be corrected by a slight change in driver technique. I've always been able to overcome the bucking by using my clutch and throttle more in those situations when bucking is more likely to happen. Therefore, I can't say if the heat shielding mods made it any better. I know for a fact that in the middle of winter when the temps outside is below freezing and the temp gauge has only hit 2 bars, I can purposely make the car buck at will.
As for the pics, here is my "radmat" thread:
https://www.s2ki.com/forums/index.php?showtopic=70356
In the 3rd pic, you'll see the intake tube wrapped as well as the top rad hose.

For anyone who's interested, here is a thread I did recording temps with an AEM intake (with insulation):
https://www.s2ki.com/forums/index.php?showt...mp+measurements

I had other pics but it's such a long time ago, I've lost them since these were ones I sent to Tedster to post for me before I had a photo album here.

 

XV,

Thanks for the info.

i understand what you mean by driver technique. I really hadn't notice the bucking, until i read up on it on this site. There are many people convinced that it is more than drivetrain backlash. And i do notice a sudden loss of power when in traffic. It was automatic for me to push the clutch and rev a little more. But it is more pronouced than my civic's. The ECU seems to be over reacting.

Hyper X, posted the hondata gasket makes more of an inpact than a CAI. This leads me to believe that it is not Intake Temperature alone.

by the way my experiment didn't take much effort. but like you, before doing the modification, I automatically compensate for the bucking. so i don't know if it work. It has been modified for 3 days now. It feels like there is no sudden power drop, any more. and i try to simulate bucking, but the result is slight drivetrain backlash bucking. I still need more time to make sure it's not in my mind.

Before i say what i''m doing I've asked Hyper X (in hawaii also) to try out my modification. He can make his car buck on que.

Regardless, I'll post what i did in a few days. Let everyone try it out and see if it works for them.

Thanks again for your information.

 

Another temp thread I did a couple years ago...

https://www.s2ki.com/forums/index.php?showt...0217&hl=ibutton