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porsher
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BFG G-Force R1 application notes
I am about to install 205 and 225 R1s on my track car.
(23/31, lowered, polybronze) Any suggestions on starting camber settings and hot pressures? Cheers
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86 911 Race Car, with a few 993 bits in the boiler room 79 928 Race Car 88 928 Becoming a Race Car Last edited by aston@ultrasw.c; 01-21-2010 at 10:04 AM.. Reason: brane fade |
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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We've run these only a short while on a friend's car- 87 Carrera 23/30 springs, adj. rear bar, 225 front, 245 rear.
We run max camber that the rear springplates will allow (with the use of the Elephant Cambermax widgets) and started pressures in the low 30's. They climbed pretty high so we settled them back at mid 30's and they seemed to do okay with wear and grip. However i'll admit said friend is one of those set it and forget it kinda guys. Half the time he doesn't know what's a good tire pressure and adjusts his driving style (balls-out sloppy lines, but still drives the crap out of the car) accordingly instead of playing with the pressures. The fronts have the camber (-2)and caster maxed out for the stock camber plates. Shoulder wear is prominent, as is heat (shoulders turn blue when in storage). Same tire pressures. Mid 30's work well. However raised spindles and more camber are in the works to get better results up front.
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Kevin L '86 Carrera "Larry" |
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Large Registered Member
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subscribed...
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'85 Carrera Coupe, Marble Grey #118 JP/R6 '93 Lexus SC400, '00 Ford F-150 '70 911T- 2.7 (SOLD) |
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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Forgot to mention i'll likely use these this coming season, so i'll post my personal experiences on my own car.
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Kevin L '86 Carrera "Larry" |
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Registered
Join Date: Jan 2006
Location: Santa Barbara, CA
Posts: 2,307
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Mid 30's like they tell you, as much negative camber as possible. Great tires.
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jhtaylor santa barbara 74 911 coupe. 2.7 motor by Schneider Auto Santa Barbara. Case blueprinted, shuffle-pinned, boat-tailed by Competition Engineering. Elgin mod-S cams. J&E 9.5's. PMO's. 73 Targa (gone but not forgotten) |
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porsher
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To answer my own question
![]() 32 F, 34 R hot -3 neg F and R
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86 911 Race Car, with a few 993 bits in the boiler room 79 928 Race Car 88 928 Becoming a Race Car |
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Registered
Join Date: Mar 2002
Location: longbeach
Posts: 925
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Yeah ,I remember with my old r1s the pressure would go raelly high after the first run group. Nitrogen is supposed to help the stability of pressure though a lot of tire shops and off road chassis shops( shocks) have this.
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