Hello again!
Most of you will probably know/ remember about my chronic cooling problems. I Have for the most part corrected all of them except for one. When i am sitting in traffic the car gets eventually up to an unbearable temperature. I have selected my resolution for this, and thus here are my questions.

I am going to purchase a crank driven fan and get rid of my puny electric fans. I have a 92, which obviously did not come with a crank driven fan, thus i need a fan shroud from an earlier model. Does anyone happen to know where i can get these from? and perhaps a part number???

secondly, does anyone know how big of a fan came on the camaros origionally (crank driven that is)

I have a serpentine setup, and luckily Flex a lite makes a revers rotation style fan for these, i just need to know size and where i can get the shroud from so that I will be pulling enoguh air through the BeCool radiator.

Thanks in advance.

 

well this is speculation on my part but i belive that my 79 uses a 16" fan, as far as schrouds go, i would also try one off of an older f-body, on my 79, i believe the schroud is about 4 or 5 inches deep. if so, i think it can be shaved to fit.
good luck.

 

cool, i thought about going back to second and first gens for the shrouds.. but i was hoping hat the 82-86 or so had a crank driven fan. that way making the conversion all the more easier.

Does anyone know if their 82-?? had a crank driven fan and shroud???

thanks

 

Yes, they did.

http://www.deadbird.org/pncam/c08.htm

*edit* the above link has been changed. The link in the following post no longer valid.

 

Dude you da man!! I greatly appreciate it.. anyone know how big of an opening that the shrouds create???? thanks in advance.
-steve

 

Not a prob bud, that's the whole reason I scanned that stuff and put it on my site, for everyone.

Don't quote me on this since it's been a loong time since my camaro had a shroud/direct fan (and I never really measured it..) but, I think the stock fan was around 16" & the shroud opening was 18"ish (1" clearance around the fan).

(Maybe another lg4 owner out there w/a tape measure could confirm/correct this)

 

I have an 86 Camaro with a crank driven fan (no shroud), i'll check how big it is tonight when i get home.

Im having an overheating problem as well so im either going to have to get electric fans, a shroud, or a scoop :rockon:

 

killer dude.. i think summit offers reverse style fans from 16" to 19"...
Im narrowing down my hunt!!

-steve

 

greatly appreciate it!!! what are the symptoms of your cooling problems???


-steve

 

After driving around for an hour or so the coolant reservoir starts filling up and boiling over. I have been leaving the heat on (even though its over 90 degrees here right now ) but it dosnt make much of a difference.
I have changed the thermostat twice(160 and 190 degree ones), checked the water pump, replaces all hoses, flushed the rad, checked sensors, air dam is fine...
The only things left are a shroud, electric fans, or a scoop.
unless you have any other ideas?

 

well.. the one thing i didnt see that you had listed is a new radiator cap.. have you replaced it recently??? Thats usually one of the cheaper, not so noticed things that people forget about.

-steve

 

what is the stock cap pressure for the lb9?
thanks

 

oops, ya I forgot about that one , but yes, its been changed.

By the way, my fan is 17"

 

Mr. Mackey says 'That's a bad thing Mmm-kay ?'

 

ya I know...I really should start looking for one. Will it really make a huge difference?
I already know the answer but its nice to hear from someone else.
My fan is WAY too far from the rad.

 

You'd be amazed at the difference. W/o the shroud, the fan is pretty much just cooling the block only.

It's kind of like the difference between pointing a fan at the window or sealing the fan to the window to vent a room.

I put an electric fan on my camaro because the previous owner took the fan clutch off to solve the cooling problem instead of cleaning 3 seasons of tree leaves & other garbage from between the radiator & a/c condenser. The elec fan cost the same as a fan clutch at the junkyard so I felt the $5 would be more well spent on an elec fan & it gives the ol' LG4 mad power now too :sillylol:

 

so would it be beneficial to get an electric fan (or 2) instead of the shroud? or both maybe?

I guess it couldnt hurt eh...

 

an electric fan will cool better because it always spins at the same speed. a belt driven fan varies depending on your rpm's. also, check the cfm rating of the electric fan before you purchase it, the higher the number, the more air it will move through your radiator.

 

Oh, and my camaro came with an 18" fan.

 

But, an OEM elec fan doesn't run at all times.... only intermittent. It only cools as needed at high risk temps. Crank driven fans spin at a speed regulated buy the fan clutch. Regardless, they are always working unlike an electric (unless you've got it wired to runs constantly)

 

Thanx for the tip, but how hard would it be to wire it to run constantly? Not too tough I imagine, would just need constant power, right?

 

the easiest way to do it is to run the power wire that currently supplies the voltage to a toggle switch so that you still have some amount of control over the fan. This is really helpful when the temp is staying down by itself, you can leave the fan off and save some battery drain.

I put my switch below my cig. lighter.

 

Sounds like a great idea...thing is I'm not very good with wiring.

 

IMO, get a switch that can handle the amp draw of the the fan and wire the switch to the ground side of the circuit(old diesel mechanic thing)

 

that works if you know what circuit your fan is running off off...otherwise just cut the positive wire and run a new wire to it from your switch(switched on position side). Then, run another wire from your switch(constant power supply side) to your voltage supply which is always on(such as your cig lighter, the stereos constant power, or quite a few other sources). Then, you are ready to go.

 

it dosnt hurt anything to splice wires together like that? Dont you lose any voltage?

 

IMO, if you want to run an electric fan, use a relay, obviously GM decided it was a needed item, go with the flow.

Buy whatever rating switch you want and a 30A (or roughly similar.. get an OEM one from the junkyard.. doesn't matter) relay and wire it in a similar fashion to the OEM fan setup. The switch only powers the relay, nothing more, the relay becomes the 'switch' to the fan. It's really no more trouble to wire in a relay than a switch. With a relay too, you can get something more subtle (and easier hidden) than some big gaudy, high current toggle switch from autozone. But, that's just my opinion, I could be wrong.

 

you said something about not having a toggle switch there, yet in the schematic you posted, there is still a switch.

Also, the only advantage of running a relay is if you are pulling your positive voltage supply from a source that has an amp rating on the fuse block that will not supply both the fan and the current circuit. A relay is a good idea if you are unsure what the amperage draw of the fan is or if you are not sure what circuit you are pulling the voltage from. It is easier and a lot less complicated to simply run a direct switch to the fan.

Be sure to use a fuse somewhere if you hook it directly to the battery though. If you run a wire directly from a source that is before the fuse block, install a fuse so that there is a safety net so that the fuse will blow before you can damage anything else.

 

You guys are awesome. :hail: Thanx a lot. I will hopefulyl be able to do it this weekend. If not, i'll give it a try next week. I'll keep ya posted though.
Thanx again.

 

I didn't say you don't need a switch at all.

 

I think I have found the problem with my cooling system.
Get this, I just took an even more thourough look and I found that the guy who i bnought the car from had a second COMPLETELY USELESS rad in front of the original one. The second one was all bent to sheeeat and was blocking the air comming up from the airdam. Secondly, the rad that is still in there is for a 305...aint gonna work. THe guy that had the car before me was apparently a dumba$$. We'll see if this helps enough I guess.

 

I have a 17" hayden flex fan, but it rubbed the shroud for a little while until it finally rubbed off enough plastic to stop rubbing at all. It just barely fits inside the shroud. BTW, I have a solid fan mount, don't use a fan clutch, they are pieces of crap. And my 83 Came factory with a belt driven fan.

 

please see this post I made on cooling. https://www.thirdgen.org/techbb2/sho...hreadid=117842

 

SCORE !!!!!!!!

nice page there!

now i know what i need to get the 82 trans am correct !

only one problem though, part numbers qare wayyyyyy wrong on there!


thanks
!

 

they are pieces of crap after alot of mileage but not when are remanufactured or new, theres a huge difference, temperature controlled clutch fans were the best thing GM came up with for cooling, besides the air dam,

 

deadbird site pages dead

what is wrong ?

help ?

thanks