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Motorsports, Racing & Track
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  #1  
Old 05-30-2004, 06:42 PM
PeteinMD PeteinMD is offline
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Location: Maryland
 
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Mein Auto: M Coupe
Tire pressure for E30 at the track?

I'll be at BeaveRun next weekend with my new to me 325i. What pressures are people using for track work? The car has new Toyo ?T1-S? (not sure of the order of numbers/letters, but they are new...

Car has SA koni's, RD sways, HR springs,+ other items that won't be adjusted at the track.

TIA,

PeteinMD
'00 M coupe
'90 325i
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  #2  
Old 05-31-2004, 04:23 AM
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Pinecone Pinecone is offline
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Mein Auto: M Roadster/M3
At least 40 all around to start. I am moving to even higher pressures for street tires and track/autcorss events.
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  #3  
Old 05-31-2004, 07:06 AM
PeteinMD PeteinMD is offline
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Location: Maryland
 
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Mein Auto: M Coupe
Hm. When I track the coupe, I use 38 in the front, 36 in the rear, cold. They expand by 4 lbs uniformly after a track session, so I'm at 44/40.

Do you believe that an E30 would require more pressure, cold? I'm thinking that it's lighter than the coupe & may not need even the same pressures.

Again, I don't know, just thinking out loud. Thanx for your input.

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PeteinMD
'00 M coupe
'90 325i
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Old 05-31-2004, 03:43 PM
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Pinecone Pinecone is offline
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Mein Auto: M Roadster/M3
But probably smaller tires also? The pressure is a combo of tire air volume, tire construction, and weight of vehicle.

And like I said, most people seem to be running tire pressures lower than optimal.
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