 Wider rear tires/wheels then front, Why?? |
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| Jetsetsurfshop |
 Jan 17 2020, 02:19 PM
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Senior Member  Group: Members Posts: 814 Joined: 7-April 11 From: Marco Island Florida Member No.: 12,907 Region Association: South East States  |
Ive been running a "square" set up for years. 15x7 with 205/50/15 Hoosiers.
I'm now contemplating running wider rears then fronts and started to ask myself why? At the HSR races all the 914 guys are staggered. It looks like the PCA guys stagger too. Whats the performance advantage here? Is it handling? Something to do with getting hard on the brakes? Putting the power down? Fitment on the front suspension? Teach me something.... (IMG:style_emoticons/default/beerchug.gif) |
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| GregAmy |
Jan 17 2020, 04:24 PM
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Advanced Member Group: Members Posts: 2,311 Joined: 22-February 13 From: Middletown CT Member No.: 15,565 Region Association: North East States 
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QUOTE(Jetsetsurfshop @ Jan 17 2020, 03:19 PM)  Teach me something.... (IMG:style_emoticons/default/beerchug.gif) Balance and max grip. How's your balance now? Oversteer? Understeer? What are your hot tires temperaturs and pressures; are you reaching the compound's max capability? Just making rear tires bigger won't make you faster unless you've already maxxed out your rear grip through compound and setup and you have a steady-state oversteer situation that you can't tune out. And if you currently have steady-state understeer then making front tires smaller and/or rear tires bigger will make it worse. "Why" are they doing it? Probably because other people did it. Don't blindly follow the crowd. "Never follow anyone. Be your own hero." - Neil Peart |
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| Jetsetsurfshop |
Jan 17 2020, 06:04 PM
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#3
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Senior Member Group: Members Posts: 814 Joined: 7-April 11 From: Marco Island Florida Member No.: 12,907 Region Association: South East States |
QUOTE(GregAmy @ Jan 17 2020, 02:24 PM) QUOTE(Jetsetsurfshop @ Jan 17 2020, 03:19 PM) Teach me something.... (IMG:style_emoticons/default/beerchug.gif) Balance and max grip. How's your balance now? Oversteer? Understeer? What are your hot tires temperaturs and pressures; are you reaching the compound's max capability? Just making rear tires bigger won't make you faster unless you've already maxxed out your rear grip through compound and setup and you have a steady-state oversteer situation that you can't tune out. And if you currently have steady-state understeer then making front tires smaller and/or rear tires bigger will make it worse. "Why" are they doing it? Probably because other people did it. Don't blindly follow the crowd. "Never follow anyone. Be your own hero." - Neil Peart Car has a slight push now with the 15x7 205/50. I have never had a chance to take tire temps. I'm a one man show. None of my friends get the race car thing. I guess i'll have to pay some kid to help. Theres always some track rats hanging around. If I remember correctly I start with my cold temps 26.5 front/28.5 in the rears. I think I'm trying to get the rears harder to help with the understeer. Again, need to get some trackside help. If the front tire is narrower then the rear wouldn't it steer better? It has more weight per square inch. I did notice that cars with 7s in the front and 8s in the rear almost always have a spacer for the fronts. 1" to 1 1/4". IS there something to this? Like the quote (IMG:style_emoticons/default/aktion035.gif) |
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Posts in this topic
Jetsetsurfshop Wider rear tires/wheels then front Jan 17 2020, 02:19 PM
wes :popcorn: Jan 17 2020, 02:39 PM bretth I am no expert but I always thought it was for mor... Jan 17 2020, 02:48 PM wndsrfr Such a great question....love it. I have 15 inch X... Jan 17 2020, 08:51 PM
Jetsetsurfshop
Such a great question....love it. I have 15 inch ... Jan 18 2020, 02:14 PM GregAmy Smaller tires up front are counterintuitive to imp... Jan 19 2020, 03:56 PM stownsen914 My car is set up a bit different, but I've run... Jan 19 2020, 07:12 PM Jetsetsurfshop Tire temps will be priority one at the track. The ... Jan 20 2020, 06:46 PM stownsen914 The chart is generally in line with my understandi... Jan 22 2020, 07:42 AM Jetsetsurfshop
The chart is generally in line with my understand... Jan 22 2020, 07:50 AM ThePaintedMan Shane,
This is a really cool site which explains w... Jan 22 2020, 09:03 AM Jetsetsurfshop
Shane,
This is a really cool site which explains ... Jan 27 2020, 06:14 PM Justinp71 When my car was a 4 cyl running on 4 205's it ... Jan 29 2020, 04:33 PM |
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