wat is this for
eff good grammar
Joined: Dec 2007
Posts: 1,578
From: Deadford OR
mine never came on but it was real quiet. i know it works because i hooked it up to an old PSU and it came on, not a whole lot of air commin out of it, mabe that was the issue.
i also wonder if you had a non webbed manifold if the heat would be less of an issue seeing as how the webbed would catching the hot air comming up and not really let it go any where as the non webbed one would let it by between the piping
i also wonder if you had a non webbed manifold if the heat would be less of an issue seeing as how the webbed would catching the hot air comming up and not really let it go any where as the non webbed one would let it by between the piping
Haterade by da gallon!
Joined: Jun 2008
Posts: 2,306
From: Valdosta GA
Originally Posted by Niku-Sama
mine never came on but it was real quiet. i know it works because i hooked it up to an old PSU and it came on, not a whole lot of air commin out of it, mabe that was the issue.
i also wonder if you had a non webbed manifold if the heat would be less of an issue seeing as how the webbed would catching the hot air comming up and not really let it go any where as the non webbed one would let it by between the piping
i also wonder if you had a non webbed manifold if the heat would be less of an issue seeing as how the webbed would catching the hot air comming up and not really let it go any where as the non webbed one would let it by between the piping
i just know that if you get aftermarket headers your going to get a hotter engine bay
Big Poppa
Joined: Jan 2005
Posts: 4,499
From: Mission, British Columbia
the aux cooling fan comes on after the car has been turned off. it is wired with a relay to the thermotime swich just like nismopick said to cool the intake after the car has been shut off. it stops vapour lock when the car is sitting when the fuel pump isnt supplying a new fresh flow of cooler fuel to the rail. engine heat actually increases when the car is sitting and not running. ive had mine off for years, as well as many others, no problems have occured, but i dont live in nevada or arizona, so i dunno. its usually the first part you rip off and never put back on. if you read the haynes, or my fsm, it tells you these things you know!!!
Ruff Ryder
Joined: Sep 2005
Posts: 6,140
From: palm desert
let me make it somewhat official, you dont need the fan, as you are not going to be doing 125mph at 6k rpm through death valley at high noon in august at 123 degree's with the AC on. but in reality, the early z's experienced vapor lock in high heat due to the exhaust being right underneath the intake manifold and just poor engine bay ventilation, but what nissan forgot in the s130 is that they added hood vents and the airflow through and out the engine bay was basically completely changed....
(or atleast thats what i always thought)
(or atleast thats what i always thought)
From NY to AZ
Joined: Aug 2005
Posts: 578
From: Tempe, AZ
I took mine off when I got the car and it has never given me a problem. The car starts right up on any 120* day here in AZ, can't say the same for how it does in the winter though, lol. Mine also has aftermarket headers and no heat shields... so yeah, you don't need it.
Registered User
Joined: Jul 2007
Posts: 110
From: Beaverton, Or
I have experienced vapor lock... however that was because my injectors leaked and it allowed the fuel pressure to lower and reduce the boiling pressure.
My fan doesn't work... it only turns on after the car has cooled off and will run until the battery is dead.
Since I put in the new injectors I have had no vapor lock problems
My fan doesn't work... it only turns on after the car has cooled off and will run until the battery is dead.
Since I put in the new injectors I have had no vapor lock problems
