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View Poll Results: Which is more effective for getting the POWER to the GROUND
LARGER REAR TIRES
29
58.00%
LIMITED SLIP DIFFERENTIAL
21
42.00%
Voters: 50. You may not vote on this poll

Getting the POWER to the GROUND

 
Old 05-15-2005, 11:17 PM
  #31  
jebdog
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With a limited slip in a corner you can create massive throttle induced oversteer if you jump on it too hard instead of just smoking the inside wheel you can smoke BOTH wheels and learn how to quickly counter steer or not ! ...... I just saw my rear end pass my front end ! but the limited slip is FASTER all the time. Drag racing lesson 101 two tires have more traction than one.
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Old 05-16-2005, 03:13 PM
  #32  
Dennis K
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Hi Derek -

Interesting topic. I've run in all configurations from open diff with 275/35/18 street tires all the way to an 80% locked diff with 315/30/18 R-compounds.

Biggest gain depends on what you want to do. If you want to launch in a straight line, then in my opinion, stickier tires first, then wider, then LSD. If you want to get out of corners without spinning the inside tire, get an LSD first, then stickier tires, then wider.

I just came back from the track after having my LSD rebuilt. Devek were aiming for 60% lock but ended up getting 80%. It's pretty annoying to drive on the street because the tires are always skipping and shuddering around even normal right hand turns. If you have any mechanical sympathy, driving in parking lots feels abusive to the whole drivetrain. On the track though, it's pretty dramatic how much earlier you can get on the power. I had to alter my lines to take advantage of all the newly available traction. In no way would I recommend so much lock on a street car, but for a track car it works.
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Old 05-16-2005, 03:39 PM
  #33  
mark kibort
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actually, racing with both i can say , the lsd is better for getting out of corners, especially power on corners where its off camber. also great for entering corners as the lsd tends to keep the rear planted and helps steer around the corner, where open diff just lets loose.

bottom line, in my old car with both lsd or open, i would take the tires over the LSD in a race any day of the week.

Dennis can appreciate this fact. i ran a 2:10 at thunderhill with an open diff 1979 928 , but my usual set of used hoosiers and they are the 315 and 275 fronts and probably 200-220 at the rear wheels.

an LSD with the skinny 245ish tires wouldnt have had a chance!!!!

Mk
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Old 05-17-2005, 01:06 PM
  #34  
Th Dude
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Thanks again for all the great input. Those who have first hand experiences trying the various configurations seem to mostly be in consensus on the different applications of power to ground under certain conditions.

For me, for now...I am adding some bigger meat.

Once I get used to launching my car and playing with my g-tech some more. I will post my best runs with each set of wheels.

D
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