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Oil cooled?

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AK191

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Oil cooled?
« on: July 01, 2006, 07:50:14 pm »
Would a BMW R850R be concidered "air" or "liquid" cooled? I'm sure this has been answered LOOOOONG time ago with early GSXR, but I gotta ask. Even a R1100 @90-100 HP and 500# is no threat to most of the twins on the track, so I wonder what classes they would fit into.
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PJ

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Re: Oil cooled?
« Reply #1 on: July 01, 2006, 11:24:58 pm »
Lightweight Supersport, Superbike (plus GT Lights) and Grand Prix allow air-cooled twins up to 1210cc.

BMW boxers are considered air-cooled. Check recent results and you'll see how well Nate Kern goes on his R1100S.
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AK191

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Re: Oil cooled?
« Reply #2 on: July 02, 2006, 11:01:01 am »
Thanx! :cheers:
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edgeracng

Re: Oil cooled?
« Reply #3 on: July 04, 2006, 12:24:36 am »
so then what is an 86 gsxr 1100 legal for????
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Super Dave

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Re: Oil cooled?
« Reply #4 on: July 04, 2006, 10:41:56 am »
I believe that the non-liquid cooled bikes with four valves per cylinder are allowed in heavyweight classes.  HWSS, HWSB, GTO, and also ULSB, ULSS, and ULGP.
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251am

Re: Oil cooled?
« Reply #5 on: July 04, 2006, 12:23:59 pm »
 Air cooled is the classification for R bikes. I started out on my R11GS a few years ago. I'd recommend changing gearbox and rear end to Amsoil 75-140. They're gonna get hot!!   :err:
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Eric Kelcher

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Re: Oil cooled?
« Reply #6 on: July 04, 2006, 01:06:51 pm »
Liquid cooling refers to the primary method of cooling, whatever that liquid may be.

FYI SACS is a form of liquid cooling
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Mongo

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Re: Oil cooled?
« Reply #7 on: July 04, 2006, 01:41:48 pm »
Interesting.  Most people I've talked to have always considered oil coolers to still be air cooled.
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Super Dave

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Re: Oil cooled?
« Reply #8 on: July 05, 2006, 12:37:31 pm »
Quote from: Eric Kelcher on July 04, 2006, 01:06:51 pm
Liquid cooling refers to the primary method of cooling, whatever that liquid may be.

FYI SACS is a form of liquid cooling

True, but even thunderbike allows certain SACS bikes up to 800cc+...

What's the official take on a 1986 GSXR1000 with SACS?  What class?

From heavyweight..."other configurations are allowed unlimited displacement"...
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edgeracng

Re: Oil cooled?
« Reply #9 on: July 11, 2006, 11:59:44 pm »
uh yeah, what would my old tank gsxr 1100 be legal for???
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Super Dave

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Re: Oil cooled?
« Reply #10 on: July 12, 2006, 10:27:41 am »
Eric knows more...

Worst case, Unlimted Supersport, Unlimited Grand Prix, Unlimited Superbike, and GTO.  Supersport would have some limitations for modifications.
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