Snyper

iTrader: (27)

I think my radiator might be too thick. I have a 22x19x3" radiator and a single 2500cfm fan. Last year I was running a 29x20x5/8" thick radiator and one of the two shitty stock 350z fans and the temps never went over 190*. Now the car doesn't seem to wanna stay cool and I can barely feel air coming through the radiator.

With or without the 160* thermostat the temp never gets below 180* and in order for it to stay at 180* I have to be on the highway going at least 80 (The air has to travel through a 4" intercooler then throug the radiator). and it will slowly heat up as the night goes on. I was thinking about switching it out for a 24x19x2" seeing as it might be easier for the fan to push air through it...what do you guys think?

brian_rs/ss

yeah that 24x19x2" seems more logical, like you said it would be easier for the fan to pull air through. also i know it may sound really retarded but i have been guilty of this...just double check to make sure the fan is pulling air and not PUSHING air. when we installed the e-fan on my '68 rs/ss we followed the directions in the kit to the T, but the directions were wrong and we ended up with a backwards flowing fan and we were completely stumped as to why the bitch kept running hot...till one day i popped the hood with the key still on and i felt hot air rushing through the grille hitting me in the leg.

but yeah if thats not your problem then a slightly thinner and wider radiator SHOULD do the trick. in theory anyways.

memphis24

i was going to mention what brian said.

Snyper

iTrader: (27)

its funny you guys say that cuz I wired my fan up the way they told me to and I tested it out before I ever started the car and it was backwords. plus I double checked with a spray bottle of water and it was sucking air in so its the right way.

brian_rs/ss

also where is you intercooler in relation to the radiator? how close is it to the face of the radiator etc?

Snyper

iTrader: (27)

VERY close. its touching the end of the fan..

brian_rs/ss

it might be possible that your radiator and intercooler are swapping heat and consiquently driving your temp up.

Snyper

iTrader: (27)

I haven't even gotten into boost yet. Even with the car parked sitting the temps go up..no matter what I do they go up..even took the thermostat out and it actually got a little hotter. Theres absolutely no room in my car to fit anything else so I can't really move the IC. Only thing I can do is get the thinner radiator and try a bigger fan.

brian_rs/ss

got any idea what kind of shape the WP is in? my old mustang gt did the same thing(or very similar at least). although it wasn't boosted, but i found out AFTER i blew the motor and bent a couple valves that the WP was shot.

Snyper

iTrader: (27)

I didn't know these WPs could go bad..?? It seemed perfectly fine last year with the stock 350z rad and fan...

brian_rs/ss

yeah i don't have too much experience with ls WP's(at least not as far as durability goes). it was just a random thought, maybe something to research before you drop money and time into it.

Snyper

iTrader: (27)

Any other ideas?