Lowering engine compartment temps

bigrob126 · 04-22-2012, 12:21 AM

I have been thinking of ways to keep the engine compartment cooler, which in turn will help keep the engine cooler. Big temps are once again on the way here in Vegas. Was wondering if anybody had some suggestions. I have no issues, but am always trying to improve if I can. I have removed the lower cover, I know this helps keep the compartment free of dirt and may provide a little more under aero dynamics, but I also know how much heat it traps in and that bugs me. I have also removed the rear rubber seal by the windshield to let heat escape. I was thinking of lifting the rear portion of the hood by placing washers in between the hood and the hindge plate, although the sides of the hood will then be higher than the fenders. I dont want to cut any holes in my hood!

Vbp6US · 04-22-2012, 02:13 AM

Would this offer any significant gains in terms of cooling? Not sure how I feel about the hood being above the fenders.

bvl · 04-22-2012, 06:03 AM

I’m puttin’ speed holes in my car...

- H. Simpson

SPOHN · 04-22-2012, 08:09 AM

This

Baer383 · 04-22-2012, 09:01 AM

Quote:

Originally Posted by SPOHN

This

:i agree:

:xmastup :

bigrob126 · 04-22-2012, 10:14 AM

Quote:

Originally Posted by SPOHN

This

Where did you get that hood and what was the cost?

sfearl1 · 04-22-2012, 10:33 AM

instead of completely removing the under shroud, i suggest getting one of these.

Z Speed Performance Aluminum Under Shroud (do a search for them under vendors)

SPOHN · 04-22-2012, 10:34 AM

Quote:

Originally Posted by bigrob126

Where did you get that hood and what was the cost?

It's custom. Bought the hood vents from a vendor Carbon Signal (here on the forum) and had them molded in. All and all about $1k

Baer383 · 04-22-2012, 10:43 AM

Quote:

Originally Posted by sfearl1

instead of completely removing the under shroud, i suggest getting one of these.

Z Speed Performance Aluminum Under Shroud (do a search for them under vendors)

Does this fit regular Z ,and Nismo?

daisuke149 · 04-22-2012, 10:47 AM

frank, tehy make one for each model, regular and nismo.

Ron · 04-22-2012, 10:47 AM

they have a version for each

Ron · 04-22-2012, 10:47 AM

you beat me to it Dai.

MacLean · 04-22-2012, 10:50 AM

The hood looks effen sweet.

PapoZalsa · 04-22-2012, 10:54 AM

Quote:

Originally Posted by Vbp6US

Would this offer any significant gains in terms of cooling? Not sure how I feel about the hood being above the fenders.

That is Old School back in the 70s & 80s people did that. Don't know if the purpose was cooling the compartment or a trend.

Alstann · 04-22-2012, 02:35 PM

Seibon sells a range of hoods with slots or vents in them. The one I like the most is:

SEIBON :: Hoods :: HD0910NS370-TS

Looks close to the one SPOHN has in that picture.

As for removing the undertray, I would imagine that would help somewhat, but heat does tend to rise. Removing the undertray might cause some nasty turbulence or something.

04-22-2012, 12:21 AM	#1 (permalink)
bigrob126 Base Member Join Date: Jan 2011 Location: Las Vegas NV Posts: 134 Drives: 2009 370Z Sport Auto Rep Power: 14	Lowering engine compartment temps I have been thinking of ways to keep the engine compartment cooler, which in turn will help keep the engine cooler. Big temps are once again on the way here in Vegas. Was wondering if anybody had some suggestions. I have no issues, but am always trying to improve if I can. I have removed the lower cover, I know this helps keep the compartment free of dirt and may provide a little more under aero dynamics, but I also know how much heat it traps in and that bugs me. I have also removed the rear rubber seal by the windshield to let heat escape. I was thinking of lifting the rear portion of the hood by placing washers in between the hood and the hindge plate, although the sides of the hood will then be higher than the fenders. I dont want to cut any holes in my hood! __________________ Rob

04-22-2012, 06:03 AM	#3 (permalink)
bvl Enthusiast Member Join Date: May 2011 Location: PA Posts: 362 Drives: MB Roadster (sold) Rep Power: 14	I’m puttin’ speed holes in my car... - H. Simpson JARblue and DEpointfive0 like this.

04-22-2012, 08:09 AM	#4 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 45 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	This wheee! and 2sl0w like this. __________________

04-22-2012, 10:33 AM	#7 (permalink)
sfearl1 A True Z Fanatic Join Date: Oct 2011 Location: St. Louis Posts: 2,300 Drives: 2013 FBO E85 GTR Rep Power: 17	instead of completely removing the under shroud, i suggest getting one of these. Z Speed Performance Aluminum Under Shroud (do a search for them under vendors) Joe@ZSpeed and 2sl0w like this. __________________ Scott

04-22-2012, 10:47 AM	#11 (permalink)
Ron A True Z Fanatic Join Date: Oct 2010 Location: Houston, TX Posts: 3,009 Drives: TT '11 PW Nismo #113 Rep Power: 21	they have a version for each __________________ 2011 Twin Turbo PW nismo #113 - My Journal - My TT Build Thread [ GTM GTX Stg2 TT \|\| HKS EVC6 \|\| Custom CarPC \|\| F.I 3'' TDX CBE \|\| SB 6puck clutch/ZSpeed CSC \|\| BC BR Coilovers \|\| SPC camber arms \|\| Work VSS-X \|\| Custom Headlights \|\| PW:JDM CF Covers \|\| Seibon CF Engine Cover ]

04-22-2012, 02:13 AM	#2 (permalink)
Vbp6US Enthusiast Member Join Date: Nov 2011 Location: SoCal Posts: 442 Drives: 2009 370z MB 6MT Rep Power: 13	Would this offer any significant gains in terms of cooling? Not sure how I feel about the hood being above the fenders.

04-22-2012, 10:47 AM	#10 (permalink)
daisuke149 My *** is famous! Join Date: Mar 2010 Location: Alpharetta, GA Posts: 4,849 Drives: 2013 Boss 302 PW Rep Power: 31	frank, tehy make one for each model, regular and nismo.

04-22-2012, 10:47 AM	#12 (permalink)
Ron A True Z Fanatic Join Date: Oct 2010 Location: Houston, TX Posts: 3,009 Drives: TT '11 PW Nismo #113 Rep Power: 21	you beat me to it Dai. __________________ 2011 Twin Turbo PW nismo #113 - My Journal - My TT Build Thread [ GTM GTX Stg2 TT \|\| HKS EVC6 \|\| Custom CarPC \|\| F.I 3'' TDX CBE \|\| SB 6puck clutch/ZSpeed CSC \|\| BC BR Coilovers \|\| SPC camber arms \|\| Work VSS-X \|\| Custom Headlights \|\| PW:JDM CF Covers \|\| Seibon CF Engine Cover ]

04-22-2012, 10:50 AM	#13 (permalink)
MacLean A True Z Fanatic Join Date: Apr 2012 Location: Houston Posts: 1,589 Drives: '12 GM Nismo # 0445 Rep Power: 16	The hood looks effen sweet.

04-22-2012, 02:35 PM	#15 (permalink)
Alstann Track Member Join Date: Oct 2011 Location: South Florida Posts: 882 Drives: 12 PW 370z 6MT Sport Rep Power: 14	Seibon sells a range of hoods with slots or vents in them. The one I like the most is: SEIBON :: Hoods :: HD0910NS370-TS Looks close to the one SPOHN has in that picture. As for removing the undertray, I would imagine that would help somewhat, but heat does tend to rise. Removing the undertray might cause some nasty turbulence or something. __________________ 2012 Pearl White 370Z GReddy Twin Turbo

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