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Crotchety Old Bastard
 
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Which Oil Cooler will fit the PF on a 930S?

I wish to install an oil cooler in the passenger's side front fender on the '85 slant. There is one in the front valance which is not adaquate for track use in the summertime in AL. I have a Carrera setup which I would love to use but do not think it will fit with the pop-up headlights.
What are you fellow slope-nose guys using in that location?


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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 12-21-2014, 12:51 PM
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I thought the oil cooler was in the rear passenger side for the slant.
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Old 12-21-2014, 08:17 PM
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Crotchety Old Bastard
 
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Some were located in the rear wheel well, some in the front valance. I'm glad mine was in the front as the wheel well location limits the tire sizes. There is also 2 A/C condensers, one in the tail and another under the front pan.
Anyone using an extra cooler in the front passenger's well?
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 12-22-2014, 03:48 AM
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I don't know how big your existing center front center oil cooler is or how much room in there is for one in your car but a larger Setrab or B&B center oil cooler is usually enough for street car 930's during track day events.

I imagine there's enough room in the right front fender area behind the headlight for an additional oil cooler and fan. You'll probably have to make mounting brackets for one. The lower oil cooler bracket from a Carrera might bolt in.
Old 12-22-2014, 06:54 AM
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Tinkering Pays!!
 
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I don't see how I'd get one in there with the headlight buckets... I added the "ducting" for the front cooler and my car runs 150F [at the oil sender] on the interstate, now. And, never sees above 195F in traffic/summer [with the added x2 T-stat controlled fans in the front].
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Old 12-22-2014, 09:11 AM
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Brian, I already know that you know these cars inside and out. But that big KS cooler in the front seems to work pretty darn well. Are you sure everything else is in working order? I have had mine on the track, in hot Florida traffic and all over the place and I never had oil temp issues.
In case you already checked everything else, why not just change to a higher density cooler in the center front stock location? Less fab work and probably less money than adding a third oil cooler!
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Old 12-22-2014, 04:17 PM
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Brian,
Shortly after rebuilding my engine, I experienced higher than normal oil temps. Thought it may have been due to the engine breaking in....it wasn't. I had to replace the external oil thermostat when I was rebuilding the engine due to the threads stripping when trying replace the oil lines going to and from the thermostat. I took the "new" thermostat out (what a PIA on a slantnose, btw), put in a large pan of boiling water to see if the oil port opened. It did, but only half way. Problem found. Took the paraffin piston out of the old 'stat and put it in the new. Problem solved.

What cooler do you have in the front?

Also, I know you have blocked off the right side of the tea tray to insure that air is pulled through the IC in the past. Are you sure you're pulling enough air to cool the cylinders/heads in that configuration when you're on the track?
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'85 930 Factory Special Wishes Flachbau
Werk I Zuffenhausen 3.3l/330BHP Engine with Sonderwunsch Cams, FabSpeed Headers, Kokeln IC, Twin Plugged Electromotive Crankfire, Tial Wastegate(0.8 Bar), K27 Hybrid Turbo, Ruf Twin-tip Muffler, Fikse FM-5's 8&10x17, 8:41 R&P
Old 12-22-2014, 05:23 PM
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Crotchety Old Bastard
 
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The problem with the OEM front oil cooler is the air has nowhere to go. It sits against the bulkhead like a brick. I have no heat issues now but we are deep into the planning stages for 500WHP and I don't want a cooling issue.
I'll get some cardboard out this weekend and see how much room a mock-up will fill. I'd like to have a fan too but don't think the Carrera unit I have will work due to the headlight bucket. A client had his 930 in some time ago and had a really slick small cooler in that spot. I wrote down the info on it then misplaced it. I was hoping some of you might have gone down that same road.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds
'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8
Old 12-22-2014, 06:48 PM
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aka 'vageen'
 
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Jim 2 modified 2 rx7 coolers and ran them in the front. His car saw track duty and was probably 450hp. His temps were always low.

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Old 12-22-2014, 07:07 PM
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