oil cooler bits are on the way
06-28-2006, 06:42 AM
#1
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oil cooler bits are on the way
After overheating issues at limerock I want to try to get the //S6 sorted for watkins glen (much bigger, much faster track). I suspect I can take care of most of the issues by getting the heat out of the oil. I ordered up everything from summit racing today, total came to $220 including shipping for all the parts which I didn't think was too bad.
I went with:
2x18mm -> -10AN adapter fittings
4x-10AN 90 degree fittings
10' -10 hose
2x1/2" NPT -> 10 adapter fittings (for the oil cooler)
B&M bar and plate oil cooler, 8x11x1.5"
<img src="http://static.summitracing.com/global/images/prod/large/bmm-70266.jpg">
I'll post install photos once I get a chance to install it, most likely next week (I'll be in Dallas until Sunday)
I went with:
2x18mm -> -10AN adapter fittings
4x-10AN 90 degree fittings
10' -10 hose
2x1/2" NPT -> 10 adapter fittings (for the oil cooler)
B&M bar and plate oil cooler, 8x11x1.5"
<img src="http://static.summitracing.com/global/images/prod/large/bmm-70266.jpg">
I'll post install photos once I get a chance to install it, most likely next week (I'll be in Dallas until Sunday)
06-28-2006, 07:34 AM
#3
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bah
this is definitely an easy DIY mod, no real tools required other than a vice to assemble the fittings and a saw to cut the hose (abrasive cut disc works best, BTDT).
06-28-2006, 08:38 AM
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Nice, hit me up via email if you want to meet up.
I'll be at lunch with a client on Friday but just let me know what your schedule is like and we'll work something out.
06-28-2006, 10:05 AM
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My cooler is not quite as big as yours....
<center><img src="http://pictureposter.audiworld.com/56100/pict0016.jpg"></center><p>
But at MSR I did notice a dramatic drop in oil temps, and the last track day I did, outside temp was between 98-102, probably 130-140 on the blacktop. My oil stayed at nice temps.
I'll shoot you an email. My week is packed with stuff to do, but maybe we can get a chance and meet up.
But at MSR I did notice a dramatic drop in oil temps, and the last track day I did, outside temp was between 98-102, probably 130-140 on the blacktop. My oil stayed at nice temps.
I'll shoot you an email. My week is packed with stuff to do, but maybe we can get a chance and meet up.
06-28-2006, 11:03 AM
#7
BTDT - had some issues, learnt some expensive lessons (edit)
First off - sorry for not writing this up sooner, too busy playing with my B5 and UrS Suspension & Brakes ;-)
1. The B&M Cooler is very soft Aluminum. I completely destroyed one simply by trying to unscrew the NPT connector. Unfortunately I couldn't find a better OC in the right dimension, - Mocal probably has one tho.
The B&M was painted black, not annodized or BBE coated. This lowers it's efficiency considerably.
The B&M fittings are really bad: the NPT-AN adapter will not screw in all the way. I used high-temp oil-tolerant sealant, but this is not a good idea, better not to use any sealants of any type on any of these connectors ... it all ends up in the turbo :-(
I am looking for a better cooler to replace the B&M I used - bottom-line, it's garbage.
2. I also bought 90 deg AN's at first, but didn't use any - it doesn't work well in the space provided. Get the 45 deg instead for the Oil Pump fitting, and use a single 90 deg NPT-AN adapter at the OC.
I used:
1pcs B&M 8x11 with 1/2" NPT fittings
1pcs NPT-10AN right-angle adapter (OSH)
1pcs NPT-10AN adapter (OSH)
2pcs -10AN Straight Female Hose Ends (any)
2pcs -10AN 45 deg Female Hose End (Steel)
2pcs 18mmx1.5mm-10AN Male-Male Adapter
2pcs 18mm Crush washers
1pcs 10AN SS Hose 3ft (get 6ft, or 2 pcs of 3ft if you're paranoid)
3. Don't spend $25 for a Summit connectors when you can buy the same thing from OSH for $2.50. Look in the plumbing aisle, e.g. for Flange to MPT adapters. It's identical to Summit NPT-AN part.
<a href="http://www.rbisj.com/">Royal Brass</a> also had really nice adapters that I got much cheaper than Summit but not as cheap as OSH. Moral of story : check OSH before buying plumbing parts from Summit !
4. If I did it again I wouldn't use the Summit Al connectors. It's hard to torque the connectors properly when they stress and bend so easily. I later got reusable/swivel Steel Hose Ends, RUS-620511.
5. I made my brackets for a conservative position, inside from the edge of the bumper (paranoid about someone hitting me -> dumping engine oil). But it's hard to get the right air-flow angle if you move it inboard.
The passenger side position may be ok if using stock air-box. But not ideal to be in the same area as the Cold-Air Intake - so I really need to relocate mine or make some ducting to guide air over the OC.
7. I found using a Dremel + Cut-off wheel to cut my SS Hose ends works much better than anything else.
Notice only one 90 deg turn was necessary. The lower OC inlet goes directly to fitting.
<img src="http://pictureposter.audiworld.com/58573/img_3147.jpg">
Look at the stress marks in the neck of the 45 deg hose end ... <yeck!>
<img src="http://pictureposter.audiworld.com/58573/img_3148.jpg">
I also put a vent in my wheel well to help air flowing over the Oil Cooler to exit the engine bay (similar to the vents behind the IC's in the B5 S4). This is an old photo - I redid it with a bigger vent and rivets not screws, but you get the idea ...
<img src="http://pictureposter.audiworld.com/58573/img_3151.jpg">
1. The B&M Cooler is very soft Aluminum. I completely destroyed one simply by trying to unscrew the NPT connector. Unfortunately I couldn't find a better OC in the right dimension, - Mocal probably has one tho.
The B&M was painted black, not annodized or BBE coated. This lowers it's efficiency considerably.
The B&M fittings are really bad: the NPT-AN adapter will not screw in all the way. I used high-temp oil-tolerant sealant, but this is not a good idea, better not to use any sealants of any type on any of these connectors ... it all ends up in the turbo :-(
I am looking for a better cooler to replace the B&M I used - bottom-line, it's garbage.
2. I also bought 90 deg AN's at first, but didn't use any - it doesn't work well in the space provided. Get the 45 deg instead for the Oil Pump fitting, and use a single 90 deg NPT-AN adapter at the OC.
I used:
1pcs B&M 8x11 with 1/2" NPT fittings
1pcs NPT-10AN right-angle adapter (OSH)
1pcs NPT-10AN adapter (OSH)
2pcs -10AN Straight Female Hose Ends (any)
2pcs -10AN 45 deg Female Hose End (Steel)
2pcs 18mmx1.5mm-10AN Male-Male Adapter
2pcs 18mm Crush washers
1pcs 10AN SS Hose 3ft (get 6ft, or 2 pcs of 3ft if you're paranoid)
3. Don't spend $25 for a Summit connectors when you can buy the same thing from OSH for $2.50. Look in the plumbing aisle, e.g. for Flange to MPT adapters. It's identical to Summit NPT-AN part.
<a href="http://www.rbisj.com/">Royal Brass</a> also had really nice adapters that I got much cheaper than Summit but not as cheap as OSH. Moral of story : check OSH before buying plumbing parts from Summit !
4. If I did it again I wouldn't use the Summit Al connectors. It's hard to torque the connectors properly when they stress and bend so easily. I later got reusable/swivel Steel Hose Ends, RUS-620511.
5. I made my brackets for a conservative position, inside from the edge of the bumper (paranoid about someone hitting me -> dumping engine oil). But it's hard to get the right air-flow angle if you move it inboard.
The passenger side position may be ok if using stock air-box. But not ideal to be in the same area as the Cold-Air Intake - so I really need to relocate mine or make some ducting to guide air over the OC.
7. I found using a Dremel + Cut-off wheel to cut my SS Hose ends works much better than anything else.
Notice only one 90 deg turn was necessary. The lower OC inlet goes directly to fitting.
<img src="http://pictureposter.audiworld.com/58573/img_3147.jpg">
Look at the stress marks in the neck of the 45 deg hose end ... <yeck!>
<img src="http://pictureposter.audiworld.com/58573/img_3148.jpg">
I also put a vent in my wheel well to help air flowing over the Oil Cooler to exit the engine bay (similar to the vents behind the IC's in the B5 S4). This is an old photo - I redid it with a bigger vent and rivets not screws, but you get the idea ...
<img src="http://pictureposter.audiworld.com/58573/img_3151.jpg">
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06-28-2006, 12:50 PM
#8
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i agree with VR, the B&M is junk, i would cancel that from your order if you can
go eBay yourself a nice mocal or setrab unit...they're considerably better have a denser core.
06-28-2006, 12:56 PM
#9
The B&M size is nice, but efficiency is poor, it's painted black not anodized
Get the polished Alum one if you have to get a B&M
034 has Setrab ($$$)
Summit also carries <a href="http://www.fluidyne.com">Fluidyne</A>
Various dist's carry <a href="http://www.thinkauto.com">Mocal</A>
034 has Setrab ($$$)
Summit also carries <a href="http://www.fluidyne.com">Fluidyne</A>
Various dist's carry <a href="http://www.thinkauto.com">Mocal</A>
