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Post by mdmicon on Jan 17, 2009 2:25:57 GMT -5
I'm going to be a new driver this year and have a couple questions about setups I'd like to have answered before I buy a couple things.
First I'll be driving at Moler 1/4 dirt track
My question is about tires and wheels. On the driver side I will be running 205/60/13 and I'm going to purchase some beadlocks for the right side.
First what off set is recommended? I know the wider the wheel base the better but the further the tire sticks out from the wheel well the more susceptible it is to getting hit and damaged.
Then what tire size is recommended for the right side? A taller tire on that side should help it turn but then again it will rotate slower which could contradict what was trying to be accomplished.
Am I way off base here or what? its late and I was just pondering some things as this is my first venture in making turns all my racing has been on the strip so its all new to me. Any info advice suggestions anything is greatly appreciated.
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Post by DOCTOR FIELDS on Jan 17, 2009 8:58:32 GMT -5
The most common setup is 2" backspacing on the passenger side, 3 or 4" backspacing on the drivers side. Notice i said "backspacing" which is measured from the back side of the wheel to the center mounting section.
If you're running an unlocked rearend you wont need as much stagger. Generally a tire with a 3/4" - 1" larger circumference than the LR should be placed on the RR. It's recommended that you adjust stagger with the rear tires, rather than the front. The front suspension is independent, which greatly reduces the effectiveness of stagger. The rearend, being a solid beam, stagger effect is noticed a great deal more. With a locked rearend, you may need upwards of 1 1/2" - 2" depending on your style of driving. A set of tires with the same "P" number (IE: P185/60/13) could all measure different. I've seen 1 1/4" difference in a set with the same P number. When you measure, use either a stagger gauge "stick" or a thin measuring tape. Inflate the tires to normal racing pressures and then measure. If measuring with a tape measure, make sure it around the center of the tread and equal all the way around the tread. You can gain even more stagger out of a tire by inflating it to approx 40 psi and let it sit out in direct sunlight for several hours. This will stretch the tire slightly. Reduce the psi to normal racing pressure and remeasure.
If you need a 4.11 gear for Moler, ive got one for sale.
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Post by mdmicon on Jan 17, 2009 10:29:13 GMT -5
how does that relate to offset i know more positive off set tucks the wheel under the car. I guess I need to know what the normal offset would be for these cars. When ordering a set of wheels they are listed by offset from what I can find so I can't measure backspace without having them yet....Also i would be locking the rear end if its not already which brings up another set of questions
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Post by mdmicon on Jan 17, 2009 10:32:04 GMT -5
I have know ideal yet as to what gear works best at moler. I'll be getting the car tuesday and testing isn't for awhile. So without knowing the motor yet and what rpm range its in I can't tell about gear selection yet. I don't know anybody that has experience at moler in these cars so I haven't a clue as to what the majority is running
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Post by DOCTOR FIELDS on Jan 17, 2009 12:57:44 GMT -5
I think alot of guys are running a 4.11 gear at Moler. That motor was built to run in the 5500 - 7500 rpm range.
Most any place you get racing wheels from will have them listed as backspacing. 2" backspacing will set the wheel out farther. 4" backspacing will tuck it under the car more. It is measured on the backside of the wheel to the center mounting section.
Just picture the center mount 2" from the backside of the wheel, if you're running an 8" wheel, that means you have approx 6" of wheel sticking out past the lug nuts. If you have one that measures 4", then you've got approx 4" of wheel out past the lug nuts.
It would be best to start thinking and doing your measurements in terms of backspacing. You could order the wrong wheels if you're not careful. Always ask the wheel dealer what their measurements are in (offset of backspacing)
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Post by troyk3 on Jan 17, 2009 16:49:00 GMT -5
I was running a 336 at Moler, I know some was trying a 362. I am pretty sure most are running a 336.
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Post by mdmicon on Jan 17, 2009 19:50:17 GMT -5
Thanks Troyk3. I've heard that Tarvin runs a 4.11 but that is simply hear say. What size tires did you run at Moler if you don't mind me asking
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Post by mdmicon on Jan 17, 2009 19:51:22 GMT -5
Thanks a lot also fields very helpful......I was just looking at a site that was recomended to me and they listed by off set i didn't call them yet was just hunting and thinking for now
Thanks alot
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Post by troyk3 on Jan 18, 2009 7:53:55 GMT -5
I just ran the Hooiser 215 all around, I am not the best setup person to ask. If I knew how to set my car up I could probably do a lot better my self. I doubt Tarvin is running a 411 the track isnt big enough for it.
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Post by troyk3 on Jan 18, 2009 20:10:01 GMT -5
Everybody is running 215's Hoosiers, that is the smallest size they make. You can probably stay in the gas more on asphalt than dirt. There is no way they can run 2nd gear with a 411 and hold these engines together.
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Post by colemanracing931 on Jan 29, 2009 11:56:22 GMT -5
they make a 205 hoosier too i got one
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Post by troyk3 on Jan 29, 2009 22:55:18 GMT -5
I believe as of last year they quit making the 205, dont now why it was a popular choice
to help with the setups
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Post by jeffries on Feb 2, 2009 15:27:04 GMT -5
you can still get the 205 from the dealer just got a couple
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Post by colemanracing931 on Feb 3, 2009 7:50:40 GMT -5
wut u runnin this year anthony? is yer g/f drivin yer 08 car?
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Post by jeffries on Feb 19, 2009 23:23:58 GMT -5
Ill be drivin the 08 car for at least this season and she will be driving a diff car. I have a late model but due to the economy its on hold for now
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