I thought about drilling the dimpled holes out on the black plastic hood heat exchangers to help cool off the engine bay with the headers. Anyone ever did this? Any side effects or positive results?

 

Never done it. Water in the engine compartment maybe...


Jason

 

i'd be cautious since the ECM is just behind and slightly to the left of the exchanger...

i'd be carefull, if you never drive in foul weather...sure go for it

 

I sis the exact same thing on my daily driver about a year ago. I have experienced 0 problems, but probably 0 benifit also.

 

Thanks for the info. I really don't drive it when it's raining, unless I get caught in it. I was thinking about making something to block them from the inside in case it does rain I can close them up.

 

That wouldnt be too tough to do. Make sure you do not cut out everything from behind the black facia piece. There are mounting holes that have to remain there to reinsert the drilled piece. I just cut 2 rectangular holes in the back and then drill out the dimples that opened up to the rectangular holes.

Make sense

You should be able to see what I am talking about when you pull them out.

Good luck

 

I did this a year ago.

I took off the four retainers holding the pieces in the hood. I took a Dremel and drilled out the completely opening. Home Depot had some "gutter guard", that blocks leaves from getting into gutters. $2 or something ridiculously cheap like that.

I made the backing slightly larger than the opening so that the top end would hold into the scoop, then the back end bends over the "plastic bolts" that the retailers go on. You'll know what I'm saying when you get it on there.

I acknowledge, the PCM is close to the opening where moisture could get in, so on that side, I put an inch plastic backing on the scoop cutout, so the rain doesn't get close to the PCM.

Speaking of rain, this was my primary concern. Simply, I have never noticed any more than a few drops of moisture inside the engine compartment, ever. No matter what conditions of rain are happening.

However, one must be careful when washing the car. Its not very tough to not get a lot of moisture in there.

Highways drives dramatically cool down the intake and engine compartment. I also took off all of the weather stripping on the cowl, so the air gets in and out to cool off the engine bay.

I did leave a 5 inch piece of the weather stripping on the passenger side to protect the PCM from any moisture dropping in the back side of the hood when stopped.