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#1 |
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
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What psi are you guys running your tires at?
On my 255/55 17's, I'm currently running them at 25psi (cold) all around...should I raise it to 30psi? 35psi? The entire weight of my truck with a FULL tank of gas is 3620 and the load rating for each TIRE is 1875lbs...so..
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#2 |
LED King
Join Date: Jan 2003
Location: Sacramento, CA
Posts: 2,088
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32-34 is standard. Running it at 25 can cause loss of fuel economy and can cause the tire to overheat.
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Tyler 1985 C10 305 w/ Bowtie OD TH700R4 3.42 LSD 202,000 miles 2006 Ford Focus ZX3 5-speed Stick 2016 Chevy Spark EV Gone: 2002.5 VW GTI 24v VR6 Gone: 2008 VW R32 |
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#3 |
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
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I shall raise them up to 32psi then...see if I can't score 12mpg...of course, at that higher tire pressure it's gonna be HARD to get traction AT ALL!
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#4 |
Right turn Clyde
Join Date: Nov 2002
Location: Cincinnati, Ohio
Posts: 2,911
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Its called "feathering" Tim
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1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73 1992 Camaro RS 305 TBI |
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#5 | |
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
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Quote:
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#6 | |
yeller
Join Date: Oct 2001
Location: Twin Cities
Posts: 13,826
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Quote:
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Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale |
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#7 |
Registered User
Join Date: Jan 2002
Location: Houston, TX
Posts: 2,144
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the pressure inprinted on the side wall is the maximum pressure for the tire. i wouldn't use this pressure unless you are at the maximum load rating of the tire also
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'51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works '05 1500 Crew Cab RIP '84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker '80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's |
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#8 |
STILL PLAYS WITH TRUX
Join Date: Nov 2002
Location: Melbourne, Fla.
Posts: 2,764
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I have allways run mine @ 35 psi.
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#9 |
Robert Olson Transport
![]() Join Date: Oct 2002
Location: recent transplant to NC USA
Posts: 20,287
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i run regular 15 inch tires on my truck and i keep em at 35lbs as per the sidewall guidelines
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Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!! |
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#10 |
Under construction!
Join Date: Aug 2002
Location: NorCal
Posts: 1,065
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33-psi here.
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2001 Silverado bagged on 22's. *Sold* |
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#11 | |
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
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#12 |
The full convertible guy
![]() Join Date: Jul 2001
Location: Paris Texas
Posts: 728
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Right around 32-35 for me most of the time. I know what you mean about traction........my 94 Z28 has pretty much every bolt on that can be done to it, 6 speed trans, radial tires and 4.10 gears......my best 60' was a 2.2 lol. My 87 GN I had had a best 60' of 1.79 on ET Streets and about 5-7 lbs of boost at launch.
Brad
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2012 Kawasaki Vaquero (Lime Green) 2000 BMW 740iL 1995 Chevy ECSB riding on air 1975 GMC Jimmy 2WD lowered 4/6 1972 Chevy Trazer soon to be roadster 1965 Mustang 289/3 speed (friends dad bought it new) 1964 Chevy C10 (dad bought it new) |
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#13 |
Stylin
Join Date: Sep 2001
Location: Tuttle, OK
Posts: 620
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is that 35psi hot or cold?
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Ive been traveling for some time, with my fishin pole and my bottle of shyne. Most Girls like finished products and just dont understand what a good addiction does for you http://www.paulwall.us/ |
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#14 | |
Account Suspended
Join Date: Oct 2002
Location: Elkhart, IN
Posts: 6,400
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#15 |
The full convertible guy
![]() Join Date: Jul 2001
Location: Paris Texas
Posts: 728
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I would kinda doubt it with radials and that much power and 4.10 gears. I thought about putting some et streets on it but the weak link (rear end) would show up then I am sure and I do not have the money for a good 12 bolt right now lol. The car ran a 13.2 witha 60' of 2.2 but the MPH was 107 so it was coming on strong once it did hook. This was also on a 100+ degree day. It should be a solid mid 12 car with some decent tires. If I ever get the money for the 12 bolt it will definitely get a little giggle gas.
![]() Brad
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2012 Kawasaki Vaquero (Lime Green) 2000 BMW 740iL 1995 Chevy ECSB riding on air 1975 GMC Jimmy 2WD lowered 4/6 1972 Chevy Trazer soon to be roadster 1965 Mustang 289/3 speed (friends dad bought it new) 1964 Chevy C10 (dad bought it new) |
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#16 |
BeWarE tHe eViL CrAnkTOe!
Join Date: Oct 2002
Location: Yukon, OK
Posts: 3,605
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Non Driver!!
![]() lol.. I used to cut high 1.8's and constant 1.9's and 2.0's on stock rubber on my 95 Formula(M6) and all the other guys cars in the club hehe. 5-7 lbs of boost only?? you scared??? hahahaha I used to leave the line in our GN at 25 lbs of boost LOL. cut 1.5's hehehe
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~Dave~ You can call me Mike, Mike Oxlong - 1986 Chevy SWB - Stock for now - 1986 Chevy Custom SWB *Stolen 6/26/05* - 1985 Chevy SWB SOLD - 1999 T/A Some mods ![]() www.cardomain.com/id/ramairdave AIM Screenname - Jester84 |
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#17 |
BeWarE tHe eViL CrAnkTOe!
Join Date: Oct 2002
Location: Yukon, OK
Posts: 3,605
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Oh yeah.... I run right at the tire max pressure
not the seating pressure...but max running pressure..to protect the wheels in case of holes in the road! ![]()
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~Dave~ You can call me Mike, Mike Oxlong - 1986 Chevy SWB - Stock for now - 1986 Chevy Custom SWB *Stolen 6/26/05* - 1985 Chevy SWB SOLD - 1999 T/A Some mods ![]() www.cardomain.com/id/ramairdave AIM Screenname - Jester84 |
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#18 |
Ultimate Diesel Dude
Join Date: Oct 2002
Location: Southwest Missouri
Posts: 328
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I run 65 psi in the front and rear when unloaded, 75 psi in front and 80 psi in the rear when hauling my trailer.
Oh yeah, I'm running 16" 10 ply TRUCK ![]() ![]()
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Project truck: '81 C/20 converted to 6.2L TURBO DIESEL bored .040", gear drive, 6.5L injectors/pump, custom pistons, custom 4" exhaust, 700R4, 4.10's Daily Driver: '95 K1500 Tahoe, 6.5L TURBO DIESEL, NP241, 4L80E, 3.42's Last edited by arveetek; 12-03-2003 at 12:50 PM. |
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#19 |
Registered User
Join Date: May 2003
Location: Shreveport LA
Posts: 3,170
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79 Sub, 255/70-15 TA's @ 36# all around.
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#20 |
The full convertible guy
![]() Join Date: Jul 2001
Location: Paris Texas
Posts: 728
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Actually Dave I have only had the Z28 to the track once so far. I went to SLP customer appreciation day back in March (I think it was) held at Texas Motorplex. Lets just say track conditions were not optimum that day. Pretty chilly and windy........I think with some practice launching it I could get some 1.9's anyway on radials. The GN would not hold any more than 5-6 lbs of boost off the line. Previous owner of it had went a 7.7 in the 1/8th......my best with a leaky header was a 8.5ish......plus I outweighed previous owner by 100 lbs probably so theres a .10 loss right there.
![]() ![]() Brad
__________________
2012 Kawasaki Vaquero (Lime Green) 2000 BMW 740iL 1995 Chevy ECSB riding on air 1975 GMC Jimmy 2WD lowered 4/6 1972 Chevy Trazer soon to be roadster 1965 Mustang 289/3 speed (friends dad bought it new) 1964 Chevy C10 (dad bought it new) |
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#21 | |
BeWarE tHe eViL CrAnkTOe!
Join Date: Oct 2002
Location: Yukon, OK
Posts: 3,605
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Quote:
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~Dave~ You can call me Mike, Mike Oxlong - 1986 Chevy SWB - Stock for now - 1986 Chevy Custom SWB *Stolen 6/26/05* - 1985 Chevy SWB SOLD - 1999 T/A Some mods ![]() www.cardomain.com/id/ramairdave AIM Screenname - Jester84 |
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