Reading slicks
#956995
03/23/11 01:57 PM
03/23/11 01:57 PM
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Joined: Feb 2005
Posts: 2,528 Mansfield, Tx
Jacob Pitt
OP
master
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OP
master
Joined: Feb 2005
Posts: 2,528
Mansfield, Tx
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Hey guys just switched the radials off my Challenger and went back to the biasply slicks. I put ten passes on them Saturday during the bracket race but never really got them broke in. They are still smooth on 90% of the tire like it has never touched the track. They weren't hooking very good either as my 60' was off about .08 all day until the semi's where it picked up .04 in the 60'. My real question is, how can you tell if you have to much air pressure or not enough? I started off with 12psi, then 11, then 10 with no real changes in performance. The center of the tire still has the mold strip down it like it has never touched.
2013 NHRA D4 Stock Champ #4 in the World IHRA Stock 2x IHRA Div.4 Stock Champ 14x Track Champ All using a Ultimate Converter Concepts converter. Call Lenny today 704-892-6837
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Re: Reading slicks
[Re: Jacob Pitt]
#956997
03/23/11 02:18 PM
03/23/11 02:18 PM
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Joined: Dec 2009
Posts: 20,640 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
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If the outer edges of the tire are only being used than you don't have enough pressure. Conversely if the center is the only part being used than you have too much air pressure.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion. 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: Reading slicks
[Re: Jacob Pitt]
#957000
03/23/11 02:54 PM
03/23/11 02:54 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Hey guys just switched the radials off my Challenger and went back to the biasply slicks. I put ten passes on them Saturday during the bracket race but never really got them broke in. They are still smooth on 90% of the tire like it has never touched the track. They weren't hooking very good either as my 60' was off about .08 all day until the semi's where it picked up .04 in the 60'. My real question is, how can you tell if you have to much air pressure or not enough? I started off with 12psi, then 11, then 10 with no real changes in performance. The center of the tire still has the mold strip down it like it has never touched.
Being that they were new you need to do a GOOD burn out the first time(most brands) that breaks the surface and gets the resins up... also like the others said no marks in the center you need more air and the other way as said
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Re: Reading slicks
[Re: MR_P_BODY]
#957003
03/23/11 05:20 PM
03/23/11 05:20 PM
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Joined: Feb 2005
Posts: 2,528 Mansfield, Tx
Jacob Pitt
OP
master
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OP
master
Joined: Feb 2005
Posts: 2,528
Mansfield, Tx
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They are brand new. 10 passes total.
2013 NHRA D4 Stock Champ #4 in the World IHRA Stock 2x IHRA Div.4 Stock Champ 14x Track Champ All using a Ultimate Converter Concepts converter. Call Lenny today 704-892-6837
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Re: Reading slicks
[Re: Jacob Pitt]
#957006
03/23/11 10:52 PM
03/23/11 10:52 PM
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Joined: Aug 2003
Posts: 43,228 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,228
Bend,OR USA
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Quote:
They are brand new. 10 passes total.
What brand and who did you buy them from Thumperdart bought a set of drag tires several years ago from Summit, one came from the Sparks, NV wharehouse and the other one came form Ohio, one of them was 18 months old and the other one was around 13 months old There is a code on the side of the tire that shows when it was made Let us know how old they are A long time ago I bought two sets of Firestones stocker tires at the beginning of the year, I had both sets mounted and balanced and put the spare set in the back shop off the ground and covered up I ran the fisrt set for four races and part of the 5th divisional races, no bracket racing on them. I put the second set on at the fifth divisional race after making seeveral passes on the old set on the test and tune day. The new set wouldn't hook hardily at all Luckily for me the west coast dealer for Fiirestone racing tires was there and ended up replacing them for free Not all new tires are always good
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Reading slicks
[Re: Cab_Burge]
#957007
03/23/11 11:01 PM
03/23/11 11:01 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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12.5-13 lbs. when new. 1st pass. do a real good burnout.
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Re: Reading slicks
#957008
03/23/11 11:24 PM
03/23/11 11:24 PM
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Joined: Feb 2005
Posts: 2,528 Mansfield, Tx
Jacob Pitt
OP
master
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OP
master
Joined: Feb 2005
Posts: 2,528
Mansfield, Tx
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Went out tonight for T&T night. Went up to 13lbs and the center finally showed some wear. Also tightened up the extension after it spun pretty good on the second pass and the 60' went from a 1.41 to a 1.33 which is where it should be. They are a little slower than the radials but still went a 6.07.
2013 NHRA D4 Stock Champ #4 in the World IHRA Stock 2x IHRA Div.4 Stock Champ 14x Track Champ All using a Ultimate Converter Concepts converter. Call Lenny today 704-892-6837
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