Hey guys I just installed the newer polished AEM short ram intake on my Z and have noticed the tube itself and the aluminum heat-shield get rather hot under the hood. The other day I saw some wrap at Autozone that supposedly inhibits heat transfer like exhaust wrap and was thinking of wrapping the intake tube in a couple of layers and then applying a layer to the heat-shield as well. Does anyone have experience in this material and do you think that it would decrease temperatures enough to make any difference? Also a popular thing to do with all my Honda-owning friends is to space the hood up slightly and remove the weather stripping near the windshield to vent heat from under the hood. On my friend's Prelude you can just watch heat waves pour out when you're sitting at a redlight... would this work on the Z? Thanks and peace.

 

For IAT -Either heat shield it, and/or get water/meth injection. Really your only two options.

To remove heat from engine bay, there's lots of options. Venting, fans, header wrap, external coolers, etc...

 

+1 CF hood with HUGE vents. Ummm heat wrap the **** out of it

 

CF hoods are a poor recommendation for cooling as they are not airflow tested. No one is to know if it actually helps with cooling, or if it just disrupts the airflow that Nissan built in stock.

Sure, they have holes in them, and they might even look like they will help with cooling...but without track or air tunnel testing....we don't know.

 

i know. However imo Big As$ holes in a hood makes me think it would. U know hot air rises so it comes out of the hood

 

I've tracked with guys who had the vented hoods and made an observation.

This isn't scientific at all but when they drove back in from the track you could see large volumes of heat waves boiling out of the vents like a smoke stack.

I also tried the hood spacing method mentioned above and it reduced under the hood temps a lot. I posted temperature measurements and details on it a while back.
It works.

 

^ True, when the car sits still of course the heat will vent out the hood, but in motion - look at funnel tests and you'll see the airflow skipping the hood altogether.

 

true, but you can't change physics - hot air rises, and air moves from areas of high concentration, to low concentration - the vented hoods aid in this process, some better than others. Air flow is not the consideration here, you are just giving that hot air somewhere to vent to.

 

Do you by chance have a link handy? Or what the thread was called and I'll go find it... I'd maybe like to try spacing the hood a lil' at the windshield...

 

Unfortunatly no.

You could try a search on "Hydrazine" and "hood". That should narrow it down a lot.

 

Hmmm. I couldn't find it either. Maybe someone with betta search skillz can help us out for teh infoz...

 

i tried

 

i have a seibon ts hood, i can see waves of heat when i'm sitting in traffic

i also heat wrapped my upper cai tube. feels alot cooler after running it hard, not sure what actual temps are though

 

OK, I see why you guys couldn't find it. Aparently many of the old threads are gone. It may have something to do with the new forum software.

Maybe some of the old threads were deleted to save space?...

This is where the hood spacer thread used to be...

https://my350z.com/forum/questionable-posts/118670-motordyne-plenum-spacer-group-buy.html
https://my350z.com/forum/showpost.ph...7&postcount=10
https://my350z.com/forum/showpost.ph...0&postcount=13
https://my350z.com/forum/showpost.ph...7&postcount=42

Of course they don't work any more.

 

even if you vent the hood, its still pulling the hot air from the headers directly over the intakes so i cant see it being much help on out cars.. i think our best be would me to wrap the headers personally

 

i did a simple test on my car. recorded temps with my vented CF hood installed and then my stock hood installed all done on the same day, same ambient temps. sitting in traffic with the the vented CF hood installed i ran 20 deg C cooler. at highway speeds i was running around 10 deg C cooler with the vented hood. vented hoods do make a difference. i hate the way they look " I like the way my car looks with the stock hood installed " but due to my findings i am keeping the vented hood installed for this very reason. BTW my vented hood is the mastergrade venom hood.

 

 

nice lookin' Z Jet Mech. I am going to get the air duct for my Z soon, I think it will help with air temps and aid in air flow to the intake.

 

also if you look closely you can see my CAI which i fabricated and repositioned on top of my intercooler. the cutouts i also installed in my front bumper cover provide a substantial amount of additional cooling air to the rad and my CAI. i also noted on my freeway cruise that my air intake temps were registering at 20 deg C or ( 68 deg F ) at a ambient temp of 69 deg F. these readings were from my blitz r-vit display unit, these values are being taken from the MAF then displayed on the blitz unit. remember i am running a high strung vortech s/c so these IAT are pretty dam cool considering. most stock vortech IAT readings are known to be reading in the 100 deg F to 120 deg F range.

 

Jet is the man, good write up dude !