Engine bay cooling improvements? DIY?

RCZ · 07-14-2011, 02:34 PM

Good thread

I've been looking into this for a while now too. Looking for someone locally to mod my hood...

98intrigue · 07-14-2011, 02:45 PM

Quote:

Originally Posted by XwChriswX

98, are they doing any modding to your hood or engine bay to help with cooling since your turbo is up higher and in front? Not to mention the exhaust pipes coming back into the engine bay instead of out the rear?

Nothing has been done other than what I listed above. I'm contemplating modding the OEM hood or getting the VIS AMS hood, although I don't prefer the CF look and I don't want to take my chances of screwing up the OEM hood. I'm also contemplating buying a spare bumper to mod. I already have my design drawn up, it's just a matter or finding a body shop willing to work with urethane.

ChipsWithDips · 07-14-2011, 03:11 PM

If you're going turbo, get some turbo blankets for the turbine housings. Wrap the downpipes. Manifolds are so small that I don't think you could practically wrap them, though you could possibly cover them a bit with a custom sheet metal heat shield.

If you use wrap on anything, I recommend the "DEI Titanium" wrap over fiberglass since it holds up to heat better, easier to work with, doesn't get brittle like fiberglass. I've seen old fiberglass wrap just crack and flake like potato chips after being on a car a while.

98intrigue · 07-14-2011, 03:27 PM

Quote:

Originally Posted by ChipsWithDips

If you're going turbo, get some turbo blankets for the turbine housings. Wrap the downpipes. Manifolds are so small that I don't think you could practically wrap them, though you could possibly cover them a bit with a custom sheet metal heat shield.

If you use wrap on anything, I recommend the "DEI Titanium" wrap over fiberglass since it holds up to heat better, easier to work with, doesn't get brittle like fiberglass. I've seen old fiberglass wrap just crack and flake like potato chips after being on a car a while.

Downpipe and uppipes are fully wrapped and I have a turbo blanket. Check and check.

theDreamer · 07-14-2011, 03:30 PM

I want to see a good vented hood, something that is not just vented to look good but has true functional value.

ChipsWithDips · 07-14-2011, 03:39 PM

Quote:

Originally Posted by 98intrigue

Downpipe and uppipes are fully wrapped and I have a turbo blanket. Check and check.

I was talking to the OP

Quote:

Originally Posted by DIGItonium

This is for a daily driven street car with Stage II TT on the way.

DIGItonium · 07-14-2011, 05:20 PM

No problem... I appreciate the advice. So far it's just the kit installation without any mention of wrapping anything, but it's definitely something to consider.

KaienZ34 · 07-15-2011, 11:07 AM

You could go hoodless.

KusoSama · 07-16-2011, 02:21 AM

Quote:

Originally Posted by KaienZ34

You could go hoodless.

I see it all the time at the track

I even see them go front bumperless...? Is that a word?

Liquid_G · 07-19-2011, 10:51 PM

Quote:

Originally Posted by DIGItonium

Today I decided to enlarge the fang duct. I used a Dremel to cut out the remaining parts of the opening. It doesn't look too bad.

I'm going to research vents for the fender well cover. My fat tires already shredded a tiny portion of the cover. It'll be nice to get an after market one that's a bit stiffer with vents. Do you guys remember the preproduction 370Z? It had vented wheel well liners. That's something I'd like to get my hands on:

I've been thinking of busting out the dremel and making some vents of my own back there.. Wonder if it would do any good?

RCZ · 07-19-2011, 11:16 PM

I talked to someone who would be happy to vent my hood with a pair of naca ducts. They would go near the front the hood on either side. To help you imagine where they would go...it would sit right over a Stillen SC.

Anyone interested in having their stock hood vented like that? If you pop your hood and look under it, you will know exactly what I'm talking about.

Oh and they sell those fender vents for audi's, I'm sure we can retrofit something.

1slow370 · 07-21-2011, 03:42 AM

what is in that corner of the bumper to cool?on the preproduction cars that was where the oil cooler sat, so it makes sense but for most people venting that spot will just reduce the pressure in front of the radiator. vents in the bumper for intake and brake cooling, vented hood, and vented fenders connected to the back of the engine bay to let the air out is probably going to be it for engine bay cooling without making a full under tray to suck the air out under the car.

DIGItonium · 07-24-2011, 12:17 PM

With temps hitting 100F+ all week, are you guys hitting 220F oil temps? Last year, I hit 220F numerous times and the car would lag often. I don't know what it is, but I've not seen anything higher than 210F the past several weeks of driving even with the A/C blasting.

Opening up the fang vents can't possibly make much difference right?

It's difficult to tell what happened since the accident repairs late in March, but something's different.

98intrigue · 07-24-2011, 03:33 PM

Quote:

Originally Posted by DIGItonium

With temps hitting 100F+ all week, are you guys hitting 220F oil temps? Last year, I hit 220F numerous times and the car would lag often. I don't know what it is, but I've not seen anything higher than 210F the past several weeks of driving even with the A/C blasting.

Opening up the fang vents can't possibly make much difference right?

It's difficult to tell what happened since the accident repairs late in March, but something's different.

With the AC off and the temperature turned all the way to hot, driving for 30 mins never saw oil temps over 225 and the coolant light never budged. Only if I could live without AC....my overheating issues wouldn't be an issue.

CSF Inc. · 07-24-2011, 05:21 PM

You could get a CSF High Performance Radiator/condenser module. There should be some more revews/ data coming up on the forum soon

07-14-2011, 03:11 PM	#18 (permalink)
ChipsWithDips Enthusiast Member Join Date: Mar 2011 Location: Austin, TX Posts: 279 Drives: '11 Gunmetal 370Z MT Rep Power: 14	If you're going turbo, get some turbo blankets for the turbine housings. Wrap the downpipes. Manifolds are so small that I don't think you could practically wrap them, though you could possibly cover them a bit with a custom sheet metal heat shield. If you use wrap on anything, I recommend the "DEI Titanium" wrap over fiberglass since it holds up to heat better, easier to work with, doesn't get brittle like fiberglass. I've seen old fiberglass wrap just crack and flake like potato chips after being on a car a while. Last edited by ChipsWithDips; 07-14-2011 at 03:13 PM.

07-14-2011, 03:30 PM	#20 (permalink)
theDreamer A True Z Fanatic Join Date: Feb 2009 Location: Texas Posts: 30,879 Drives: 370z Rep Power: 4210	I want to see a good vented hood, something that is not just vented to look good but has true functional value. __________________ theDreamer's Z // Fast Intentions // Uprev // GTM // HKS // TEIN theDreamer's Silvia // URAS // GREDDY Houston Zs // Facebook // Twitter // Instagram

07-14-2011, 05:20 PM	#22 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	No problem... I appreciate the advice. So far it's just the kit installation without any mention of wrapping anything, but it's definitely something to consider. __________________

07-15-2011, 11:07 AM	#23 (permalink)
KaienZ34 A True Z Fanatic Join Date: Oct 2009 Location: LA. not L.a. Posts: 21,652 Drives: Z34 Tour/Sport Rep Power: 178	You could go hoodless. __________________ *"These Violent Delights Have Violent Ends"* http://www.the370z.com/members/kaienz34-albums-z34.html

07-19-2011, 11:16 PM	#26 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	I talked to someone who would be happy to vent my hood with a pair of naca ducts. They would go near the front the hood on either side. To help you imagine where they would go...it would sit right over a Stillen SC. Anyone interested in having their stock hood vented like that? If you pop your hood and look under it, you will know exactly what I'm talking about. Oh and they sell those fender vents for audi's, I'm sure we can retrofit something. Last edited by RCZ; 07-21-2011 at 10:11 AM.

07-14-2011, 02:34 PM	#16 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Good thread I've been looking into this for a while now too. Looking for someone locally to mod my hood...

07-21-2011, 03:42 AM	#27 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	what is in that corner of the bumper to cool?on the preproduction cars that was where the oil cooler sat, so it makes sense but for most people venting that spot will just reduce the pressure in front of the radiator. vents in the bumper for intake and brake cooling, vented hood, and vented fenders connected to the back of the engine bay to let the air out is probably going to be it for engine bay cooling without making a full under tray to suck the air out under the car. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

07-24-2011, 12:17 PM	#28 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	With temps hitting 100F+ all week, are you guys hitting 220F oil temps? Last year, I hit 220F numerous times and the car would lag often. I don't know what it is, but I've not seen anything higher than 210F the past several weeks of driving even with the A/C blasting. Opening up the fang vents can't possibly make much difference right? It's difficult to tell what happened since the accident repairs late in March, but something's different. __________________

07-24-2011, 05:21 PM	#30 (permalink)
CSF Inc. Base Member Join Date: Jun 2010 Location: Newport Beach Posts: 50 Drives: 02 MB S500 Rep Power: 15	You could get a CSF High Performance Radiator/condenser module. There should be some more revews/ data coming up on the forum soon __________________ Ravi Dolwani CSF Racing & High Performance - Manager

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