The NEW 1.5" "XXX" Sway Bar
05-27-2011, 06:56 AM
#152
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Autocrossing with an XXX sway bar:
Almost off the ground under heavy braking and entering the turn-in.
Turning at speed - pretty flat but I may need to up the spring rates again...
You can just see the bar under the rear of the car in this photo.
Scott
Almost off the ground under heavy braking and entering the turn-in.
Turning at speed - pretty flat but I may need to up the spring rates again...
You can just see the bar under the rear of the car in this photo.
Scott
Last edited by scottherbert; 05-27-2011 at 07:07 AM.
05-28-2011, 12:12 AM
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05-28-2011, 09:10 PM
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You asked about me newer slicks earlier -- my less old 285s are down to (or below) the wear marks and are pretty much useless -- very much heat-cycled out. I'm going to see my local sponsor (the logos on the hood and doors) this week and discuss $$$ for new tires for the Nationals, I can live with the 255s til then - makes me work harder.
I'm looking at the new Goodyear 275/35 x 18s -- I've read good reports -- seemingly better stick both cold and hot, better wear, more predictable -- anyway, they're worth a try. They're $310/tire and Hoosier 285s are $336/tire -- the Goodyears are even cheaper. I've made contact with Carrol Shelby Enterprises in Phoenix and am waiting their notice with the next batch of Goodyears arrive. The 275s state that they are 0.4" narrower than a Hoosier 285, and about 0.8" taller than the Hoosier. We'll see how they work.
I'm thinking seriously about upping the front spring rate to 800 lbs and making the rears 700 lbs.
I just picked up a 96 Dodge Dakota SLT V8 truck with the heavy trailer package (posi, heavy automatic, Class IV hitch, etc.) and a cap, and I'm looking for a tandem axle 7,000 or 10,000 lb car trailer so I can trailer the Cobalt rather than driving it long distances. I'm working on the truck these days to get it ready to haul (external trans cooler, trans cooler thermostat, larger trans pan, extended filter, bigger/stiffer diff cover that holds twice as much Mobil 1 75-90 diff lube for the posi-traction, external oil cooler, oil cooler thermostat, external high capacity oil filter, or two (it should hold about 8/9 qts of oil), all new shocks, new rear springs, new poly sway bar components, headers, throttle body spacer, various new hoses, some wiring, bulbs, head and tail lights, etc., etc. I paid $2200 for the truck with 136,000 miles on it. I figure I'll put about $1000+ into maintenance upgrade items on the truck and be good to go.
Now all I need to find is a trailer.
Did I ever mention that I used to 'do V8s? Or that I also used to 'do' VW air cooleds.
Scott
05-28-2011, 11:48 PM
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That's cool I was just wondering. No rush at all I know y'all are super busy up there with all the track cars and stuff. I think it would take away from the mystic that is PRP if you guys did a lot of reselling of bs parts that can be found on 15 other sites.
06-02-2011, 08:05 AM
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06-02-2011, 01:48 PM
#165
Odd spring. It's extremely long. Normally most springs that stiff are very short, since the travel is very small. The length of that spring requires that it's also super thick core. Just an altogether odd spring, that I can't see being used in a performance car.
06-02-2011, 02:26 PM
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Yes, it is an odd spring. 16'' overall length, 2,5'' i.d. and 5'' of stroke (4.5'' is used in service). Wire size is 0,750'' (which is huge). I designed it for an oil industry application. I don't think I can show pictures of the finished product without my customer getting mad at me. And yes the spring constant is really high for that much active coils. Btw it looks bigger in person, a question of perspective + the fact that the hand holding it belongs to a 6'6'' dude. (myself, lol)
06-02-2011, 06:05 PM
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Yes, it is an odd spring. 16'' overall length, 2,5'' i.d. and 5'' of stroke (4.5'' is used in service). Wire size is 0,750'' (which is huge). I designed it for an oil industry application. I don't think I can show pictures of the finished product without my customer getting mad at me. And yes the spring constant is really high for that much active coils. Btw it looks bigger in person, a question of perspective + the fact that the hand holding it belongs to a 6'6'' dude. (myself, lol)
So I was gonna say: if you have it in 6" length, then maybe...
Various of my fellow SP and Mod SCCA folks run 1000+ lb springs. I'm just a fan of 'some' chassis movement....
Nice photo.
Scott
06-03-2011, 06:15 PM
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and most here will take issue with what I have said. They're entitled to their opinion...but I KNOW first hand what the street bar is capable of. I would NOT..I repeat NOT....get the XXX bar. Plain over kill and most likely over your head as far being able to use it properly.
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