 901 transmission temperture |
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| rascobo |
 Feb 1 2009, 01:55 PM
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Member  Group: Members Posts: 203 Joined: 26-July 07 From: Portland,OR. Member No.: 7,948 Region Association: Pacific Northwest  |
Does anyone know the optimum operating temperature range of the 901, and/or the the temp. at which accelerated wear becomes an issue?
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| ArtechnikA |
Feb 1 2009, 04:49 PM
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
QUOTE(rascobo @ Feb 1 2009, 02:55 PM)  Does anyone know the optimum operating temperature range of the 901, and/or the the temp. at which accelerated wear becomes an issue? Porsche added a pump and cooler to the circuit of the 915 when the 3,0 911RSR passed about 300HP. Later Euro street cars (e.g. 3,2 Carrera) got coolers for about the same power level. Euro cars can see higher speeds for longer durations than typical US applications. In Any Case, US 3,2's never got transmission coolers like the Euro cars did... It's more a factor of lubrication than anything. Unlike engines, transmissions don't make heat except through friction losses. Use a good gear oil like Swepco and you should be good to at least 250ºF or so. If you have over 300HP and you use it a lot (i.e. track work) you may benefit from some kind of cooler. Street car maybe not. |
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| SirAndy |
Feb 1 2009, 06:14 PM
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Resident German Group: Admin Posts: 41,675 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(ArtechnikA @ Feb 1 2009, 02:49 PM) If you have over 300HP and you use it a lot (i.e. track work) you may benefit from some kind of cooler. Street car maybe not. (IMG:style_emoticons/default/agree.gif) The only time i could feel the shifting getting harder during street driving was on a hot summer day after some 600 miles through the desert. However, on a track car with HP, a transmission cooler is a must. (IMG:style_emoticons/default/stirthepot.gif) Andy |
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Posts in this topic
rascobo 901 transmission temperture Feb 1 2009, 01:55 PM
McMark Has anyone run an oil temp gauge on their 901 tran... Feb 1 2009, 06:38 PM
BKLA
Has anyone run an oil temp gauge on their 901 tra... Sep 17 2013, 03:47 PM rascobo Thanks Guys,
I'm always amazed with the amou... Feb 3 2009, 01:05 PM ArtechnikA
I'm always amazed with the amount of knowledg... Feb 3 2009, 01:17 PM SirAndy
For radiated heat, I think it'd be lighter, s... Feb 3 2009, 01:54 PM iamchappy i have a cooler and pump on my transmission plus a... Feb 3 2009, 01:48 PM rascobo Having the exhaust coated is definitely on the to-... Feb 3 2009, 03:06 PM ArtechnikA
Which brings up another question that perhaps sho... Feb 3 2009, 03:24 PM dlestep ...back in 2000 or 2001, I had talked with an engi... Feb 3 2009, 08:16 PM Mr.242 So I've had my car running now for about a yea... Sep 15 2013, 10:24 AM pcar916 150 to 210 is the range that my box shifts smoothe... Sep 16 2013, 04:50 AM Mr.242 Thanks you have lots of perspective and it make se... Sep 16 2013, 10:38 AM brant 200 is fine
street cars won't have a problem w... Sep 16 2013, 01:50 PM Matt Romanowski I don't think the speedo drive is a particular... Sep 16 2013, 06:24 PM brant forgot to add that my 250 is with a cooler on the ... Sep 17 2013, 09:03 AM Downunderman I see about 105C (about 220F) on the track, 2.7 wi... Sep 17 2013, 01:29 PM |
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