Greetings; Newbie with questions

USMCord1 · Razorback Joined: July 22, 2005 Posts: 1538 Location: Az

An oil cooler has cold air in collects heat from hot oil and comes out hotter then when it went in. If you have the oil cooler in front of the intake you are restricting the flow to some extent and also feeding hotter air in to the engine then if the cooler was located away from the fan intake.. It can and in your case is being done, it is just not the best way to do it. Also on a rail you ventilation where a Baja will not.
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scott the viking · Posted: Fri Apr 28, 2006 10:21 am Post subject:

Lets just say for the sake of argument that it will not burn up an engine. Of all the places on a rail or bug to put an oil cooler...what you are saying is, that the very best place to mount one, is a spot that makes the "cooling fan" suck in hot air from the oil cooler to blow on the engine? Hot air to cool an engine.....Sounds reasonable to me.
I get the idea...it's suppose to cool the oil better, thus cooling the engine better. But when you take the heat from the oil you just cooled and force it back over the engine. Cooling a motor with preheated air is not a good idea. Think about how ambient outside temperatures effects an aircooled VW engine. Now consider what that piping hot oil cooler is doing to the incoming air flowing over the engine, same thing.
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SHMO · Posted: Fri Apr 28, 2006 10:23 am Post subject:

vidiesel,

Scott is right on this one. You have done nothing but hamper the cooling effect on your motor. It is surprising it has lasted this long. My guess is your are running a very tame setup, otherwise it would be toast. And let me ask you this, do you know how hot it is actually getting? Basically, you have tricked the motor into thinking it is ALOT hotter outside than it really is. Preheated air is not a good thing to cool an aircooled motor with.

SHMO

vidiesel · Samba Member Joined: January 28, 2006 Posts: 21

all off the cool air on the intake is not being forced through the oil cooler.
I could see a problem if the cooler was totally blocking the intake hole and all the air had to go across the cooler, but there is so much area for fresh air with the stand offs on the cooler that there is not a increase in the temp of the intake air.

HamburgerBrad · Posted: Fri Apr 28, 2006 10:32 am Post subject:

regardless, put the cooler somewhere else with an electric fan. your engine will thank you.
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scott the viking · Posted: Fri Apr 28, 2006 10:36 am Post subject:

An oil cooler will heat up the entire cab of a beetle so you can hardly stand it (if it's inside)...They get HOT.
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SHMO · Posted: Fri Apr 28, 2006 10:39 am Post subject:

scott the viking · Posted: Fri Apr 28, 2006 10:52 am Post subject:

If there is so much "stand off" that it is not pulling in hot air...then it is not even cooling the oil with the fan (like you think it is). Either you are sucking hot air into the engine from the cooler or you're not. If not, there was no reason to put it there, if so...move it so it's not.
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vidiesel · Samba Member Joined: January 28, 2006 Posts: 21

Thats my story and I'm sticking to it

HamburgerBrad · Posted: Fri Apr 28, 2006 11:42 am Post subject:

can you back this up with gauge readings?
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OGST | CU05 | OGJHC
1970 baja|1953 oval

Wanted: two beat up, ugly, curb rashed 6" phone dial wheels

vidiesel · Samba Member Joined: January 28, 2006 Posts: 21

Heck no. thats just my story.
we do have some fancy air velocity/temp meters at work I should tske some measurements.

HamburgerBrad · Posted: Fri Apr 28, 2006 11:52 am Post subject:

Skidmark · Posted: Fri Apr 28, 2006 8:41 pm Post subject:

I think I will pipe in on this one as well...

If it is mounted on stand offs, far enough away to NOT affect the air temp, mounted on sheet metal, with the leverage of the weight of the cooler hanging way out, how strong is the mount for the rigors of off road abuse? My bet is the stand offs pull out of the sheet metal before the motor is well done (and both will happen)...
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runslikeapenguin · Posted: Fri Apr 28, 2006 10:47 pm Post subject:

was the PO confused on whether this was a baja or a drag car?
i like that wing though
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Mudb0gger · Posted: Sat Apr 29, 2006 3:20 am Post subject:

Just a thought...but how good can you see the cooler with it mounted over the air intake? Lets say it is absolutely possitively the best place to have it for cooling reasons ( which it aint) although it is pulling in all nice fresh cool air (which it aint) and doing the best job it can do, Whats to say it aint totally blocked with trash, leaves, etc, etc. I have seen several that were tucked away back there "out of sight and out of mind the motor starting knocking so he pulled the motor unsure of what went wrong and ended up scrapping the motor. He was selling off what parts he could to include a totally nasty blocked oil cooler. It may sound like a good place but whay take the chance. I have saw one mounted in the front bumper. Probably good air flow but opened to all the possibilities of getting punctured. Just my $.02 worth.

wahrsuul · Posted: Mon May 01, 2006 9:42 am Post subject:

This is what I get for only posting when I'm at work Smile

According to the ad, the PO wasn't sure what he was doing with it; it was listed as a custom and/or drag car; you chose. He said he'd started on a turbo motor for it, but other things had come up. The wing is hand made and looks great. The paint needs work tho; digging under the decal this weekend shows some nice rust holes. Nothing too bad tho.

I didn't think the placement of the cooler was good but figured I'd ask. I'll be moving that as soon as I can figure out where to put it.

On the front end; whats a "good" coil spring set up? I don't mind keeping the torsions, but it seems they're way over sprung for the light weight.

Thanks for all the advice so far.

theblueblack71 · Samba Member Joined: March 29, 2006 Posts: 144

i wouldnt take out the torsion bars, if you do.. then your going to need some MEGA strong shocks..like racing shocks, and their around 700 a pice.. no i would leave the torsion bars, and go buy some coilovers from jc whitney or your local bug store, there not that expensive, about 60 dollars a pair, and they fit perfectly right in the stock mounts.. there even ajustible, so you can leave them loose around town, and get a smothe ride, or tighten them up in about 5 min and it will not onlyraise it 2 1/2 or 3 inches, but it will make your ride stiffer so you dont bottom out on bumps

Mudb0gger · Posted: Wed May 03, 2006 3:56 am Post subject:

Is the coil overs an alternative to getting some lift in the rear? Im looking for a couple of inches the easy way. I could cut my fiberglass fenders to clear what I need but dont really want to. The fenders I have are some older style I think because I have never seen any shaped like these and it curves way down. I was just wondering if the coild overs will give you that kind of lift by them selves with nothing else done.

wahrsuul · Posted: Wed May 03, 2006 5:44 am Post subject:

The problem is; with the current setup, the torsion bars are toos strong. There's no weight up front; a spun aluminum gas tank and the one piece front. So the shocks aren't getting much use now. Getting coil overs and setting them loose probably wouldn't help. Is it possible to get lighter spring rate torsions? Or maybe I need to move some weight over the front. Maybe the battery and a spare tire?

theblueblack71 · Samba Member Joined: March 29, 2006 Posts: 144

yes! the coil overs will raise it 2-4 inches!!... (depending on wieght) and as far as the weight issue goes.. it shouldnt be that big of a problem, but if it is, them just have a passenger with you.. the'y ballance it right out.. but DO NOT put a battery in front!... the idea is good, but a friend of a friend did that to try and get the car balenced so he could jump it... and heres what happened... he was off roading out in the dessert, and going over whoops havin a ball.. but not knouing that all that gas getting splashed around made a leak in a hose drip gas infron of his car, the gas ranr around on the inside, and created a small puddle.. then while jumping his car, the battery came loose and fell on it's side, making contact with ground... BOOOOM the hole front of his car was ingulfed in flames... the car survived.. but not only was it scary, but the entire wiring loom and all the heater plumbing had to be reinstalled..not to mention the towing bill to get a off road tow vehicle to take it to his house.. so the idea is nice, but be VERY careful!


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