Thinking about making a jump in tire size |
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Thinking about making a jump in tire size |
Woody |
Nov 6 2012, 06:06 PM
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#1
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Sandbox Rabblerouser and head toilet scrubber Group: Members Posts: 3,858 Joined: 28-December 10 From: San Antonio Texas Member No.: 12,530 Region Association: Southwest Region |
Im currently running the 205s and 225s Hankook Z214 AX tires. Even in the middle of the Texas summers they never overheated if I kept the pressures under 24 psi hot. Im wondering if running 225/45/15 front and 275/35/15 rear Hoosier A6s would be more of a detriment because the car is so light or should I just stick with the current size. I do have room for them under the fenders. The car is still an angry 2056 but will hopefully get a bump to 2270 or 2316 this winter. Thoughts?
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Woody |
Jan 30 2013, 10:00 PM
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#2
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Sandbox Rabblerouser and head toilet scrubber Group: Members Posts: 3,858 Joined: 28-December 10 From: San Antonio Texas Member No.: 12,530 Region Association: Southwest Region |
I think you may have misunderstood me. I currently am running a 19mm weltmeister swaybar on its stiffest setting. My torsion bars are 21mm. I am contemplating going up in torsion bar size to 22 mm so I can loosen the swaybar off the full stiff setting. The car drives great as it is but I don't like being maxed out on the swaybar. A smart bar would be nice but I thought they closed up shop.
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J P Stein |
Jan 31 2013, 10:19 AM
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#3
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
I think you may have misunderstood me. I currently am running a 19mm weltmeister swaybar on its stiffest setting. My torsion bars are 21mm. I am contemplating going up in torsion bar size to 22 mm so I can loosen the swaybar off the full stiff setting. The car drives great as it is but I don't like being maxed out on the swaybar. A smart bar would be nice but I thought they closed up shop. Your vid shows a lack of "tight stuff".....not that there's any thing wrong with that. (IMG:style_emoticons/default/biggrin.gif) Suspension: I'm of the "as soft as possible" school of thought. Spring rate for T bars is not adjustable. Any rate increase in front has to be balanced by an up-rate in the rear for balance..... also you run the risk of over powering your shocks. An up grade in sway bar makes a lot more sense. Mine was a hollow Tarret with an effective rate of 22mm.....half hard setting. Either way, you need to make sure your shocks are effectively dampening your suspension movement....with soft rebound to keep the tires in contact with the ground....you don't want to "pump down". That said, your venue looks pretty smooth.....and open. There is nothing wrong with setting up for your "home". Mine was *really* rough but my soft set up *worked* everywhere....but was less than ideal on a smooth surface. Good enuff to do in the Marina bunch if a bit floppy. Attached image(s) |
Woody |
Jan 31 2013, 11:17 AM
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#4
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Sandbox Rabblerouser and head toilet scrubber Group: Members Posts: 3,858 Joined: 28-December 10 From: San Antonio Texas Member No.: 12,530 Region Association: Southwest Region |
I think you may have misunderstood me. I currently am running a 19mm weltmeister swaybar on its stiffest setting. My torsion bars are 21mm. I am contemplating going up in torsion bar size to 22 mm so I can loosen the swaybar off the full stiff setting. The car drives great as it is but I don't like being maxed out on the swaybar. A smart bar would be nice but I thought they closed up shop. Your vid shows a lack of "tight stuff".....not that there's any thing wrong with that. (IMG:style_emoticons/default/biggrin.gif) Suspension: I'm of the "as soft as possible" school of thought. Spring rate for T bars is not adjustable. Any rate increase in front has to be balanced by an up-rate in the rear for balance..... also you run the risk of over powering your shocks. An up grade in sway bar makes a lot more sense. Mine was a hollow Tarret with an effective rate of 22mm.....half hard setting. Either way, you need to make sure your shocks are effectively dampening your suspension movement....with soft rebound to keep the tires in contact with the ground....you don't want to "pump down". That said, your venue looks pretty smooth.....and open. There is nothing wrong with setting up for your "home". Mine was *really* rough but my soft set up *worked* everywhere....but was less than ideal on a smooth surface. Good enuff to do in the Marina bunch if a bit floppy. This course only had one real tight spot and that was the right hand half Chicago box type thing. I've always had problems with Chicago boxes up until now. Usually the car would understeer but I didn't see that on this particular course. The venue we use is very smooth, just dusty. So you think 22mm torsion bars would be too much? |
J P Stein |
Jan 31 2013, 01:58 PM
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#5
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
So you think 22mm torsion bars would be too much? Dunno, never BTDT. IF I ran full time at your venue I would *guess* not, but those alone will cause all sorts of difficulties........*BALANCE* means all parts of the suspension working in concert to make he car do do what you want under all circumstances.....easy to say but nearly impossible to attain....but you want to come as close as you can. The beating the car takes with stiff suspenders is another facet to take into consideration........and since the chassis is a flexi flier more strengthening there is needed. The chassis is not strong enough to force the suspension to do its job now and you want to stiffen suspension ? Ya don't want to get the cart in front of the horse...... When I stiffened the chassis ( tubes to the towers), it was a revelation....probably the single best move I made.....that was 6-7 years into the build and I kicked my own ass for not doing it sooner. (IMG:style_emoticons/default/biggrin.gif) |
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