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rfuerst911sc |
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#1
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,158 Joined: 4-May 06 From: Dahlonega , Georgia Member No.: 5,980 Region Association: South East States ![]() |
As I'm nearing the point of turning the key after 3 years of work I thought I would share what I did for a front oil cooler. First off it's a 75 chassis that has a 911 3.0 installed. Living in Florida I knew a oil cooler was a must. After looking at what was done in the past by others I decided to go a different route. My criteria was I wanted to be able to use the front trunk as a trunk. This will be a street,AX and DE machine. So based on that I went about laying this out in my head. Once I had a basic plan I started buying parts. First off was a MB oil cooler from a diesel. It's made by Behr and well built. I then came up with my mount which basically is two 1/4-20 by 6 inch long bolts welded to the tub facing forward. The cooler has two hoops that slide over the bolts. I made some stand offs to keep the cooler spaced away from the tub for good air flow. I used -12AN hose to go from the cooler to the rear mounted Mocal thermostat. I wanted to keep the length of the hoses to a minimum so I ran them straight back. Under the tub just off center are two channels in the tub. I glued tie down plates to the tub and zip tied the lines tight to the floor. In the rear is the normal routing to engine,thermostat and oil tank. Yes I know my setup is more vunerable to a front end crash or doing something stupid but 911's have had front mounted coolers for a long time mounted up front and low so it can be done. I will be making some stand off blocks in the trunk just high enough to have a front mounted full size spare and then the carpeted cover. Will barely be noticeable to the common eye. I know this isn't for everyone but I'd thought I'd share now that I have everything installed. I am now fabricating a stock valance to have a cutout/snout around the cooler similiar to a early 911 RS valance. Hopefully the pics will show it off. (IMG:style_emoticons/default/biggrin.gif)
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john rogers |
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#2
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,525 Joined: 4-March 03 From: Chula Vista CA Member No.: 391 ![]() |
I would guess the first tech inspector that sees the zip ties will fail the car for the reasons mentioned. I realize you were worried about the fluid head losses but most racers run the oil lines up the outside of the longitudinals behind the covers or through the boxes for protection. If the car bottoms out then all will be ripped away very quickly and in all probability you would never be able to save the engine and anyone behind you will be really pissed off!
I had the race car bottom several times and once was when going over a curb at PIR and another time was on a track which was flat but you can't argue with gravity! In those cases the bolts that held my race seat down and were only a washer and nut thickness off the bottom were wiped nearly clean off the car. |
rfuerst911sc |
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#3
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,158 Joined: 4-May 06 From: Dahlonega , Georgia Member No.: 5,980 Region Association: South East States ![]() |
I would guess the first tech inspector that sees the zip ties will fail the car for the reasons mentioned. I realize you were worried about the fluid head losses but most racers run the oil lines up the outside of the longitudinals behind the covers or through the boxes for protection. If the car bottoms out then all will be ripped away very quickly and in all probability you would never be able to save the engine and anyone behind you will be really pissed off! I had the race car bottom several times and once was when going over a curb at PIR and another time was on a track which was flat but you can't argue with gravity! In those cases the bolts that held my race seat down and were only a washer and nut thickness off the bottom were wiped nearly clean off the car. Interesting. I run my 911SC with a huge belly mounted AC condensor and all the associated lines under the car. It is lowered to Euro height ( much lower than the 914 ) and have never scraped anything. I have done 3 years of PCA AX and one DE and no one ever said a thing nor did I bottom out. Maybe I'm not pushing hard enough . (IMG:style_emoticons/default/biggrin.gif) Your feedback is appreciated, I'm thinking outside the box and minor tweeking may be needed. However I'm not changing the placement of the lines. |
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