|
Re: ACCURATE SPEEDOMETER?
c wrote:
> Tracie wrote: >> On Sep 18, 6:10 am, Old Crow <wallisc...@yahoo.com> wrote: >>> On Mon, 17 Sep 2007 14:53:07 -0400, SnoMan <ad...@snoman.com> wrote: >>>> On Mon, 17 Sep 2007 12:52:55 -0500, c <c...@me.org> wrote: >>>>> Um, your statement is quite wrong. For instance, overdrive on my truck >>>>> reduces the RPM by 30% so yeah I am pretty sure my engine will wear >>>>> out >>>>> sooner if I choose to never use it. I will agree with you on the >>>>> lugging >>>>> part, especially if it causes pinging, but no, I will not sit here and >>>>> agree with you that my engine will last just as long turning 3000 >>>>> RPM as >>>>> it does turning 2100 RPM. That's insane. >>>> Gee how did I put close to 200K and a few 4x4's 20 to 30 years ago >>>> with 4.10 and 4.56 gears and no OD???? RPM as long as it is not >>>> excessive (like 4000 to 5000 RPM cruises ) will not shorten life at >>>> all. 2500 RPM or cruise for a V8 is childs play. How about a Toyota >>>> that when 220K with a 3000 to 3500 RPM cruise and more and was using >>>> a quart maybe every 3500 miles then. Also true RPM drop is determined >>>> by OD ratio and to get a 30% drop you need a .7 (like on a 700R4 or >>>> 4L60 or .69 on a Ally 5 speed) >>>> ----------------- >>>> TheSnoMan.com >>> Hey Snow, look out! There's another dead horse. Better get your >>> baseball bat. >>> -- >>> Old Crow "Yol Bolson!" '82 FLTC-P "Miss Pearl" >>> '95 YJ Rio Grande BS#133, SENS, TOMKAT, MAMBM >>> -- >>> Posted via a free Usenet account fromhttp://www.teranews.com- Hide >>> quoted text - >>> >>> - Show quoted text - >> >> Thanks Chris. That was helpful. :) >> I will just have to remember to fill my tank with 89 octane instead of >> 87. Is there much of a difference in effectiveness between the 89 and >> 93 as far as pinging is concerned? >> > > Well, the higher the octane, the more resistant to ping your Jeep will > be, but the question remains whether or not you need 93 octane to do the > job. If the 89 octane eliminates it, then you're good to go. If not, you > can try a 50/50 mix of 89 and 93 or try all 93. The goal in the end is > to get the most distance traveled with the least amount of money, and no > engine damage. Right now where I live, 87 and 89 are the same price for > whatever reason, so I just use the 89 octane. > > Chris Hi Chris, I live just south of Green Bay, and the Kwik Trip stores around here had 87 and 89 at the same price, but the 89 was blended with up to 10% of that ethanol crap (imo). I don't really look at the prices anymore; if I need gas, I buy gas. It's like milk. I have no clue how much a gallon of milk is. I just know that when one jug runs out, I need to buy another. I do look at ethanol content though. -- Pete (AKA Peter Stolz) '84 CJ-7 with a bunch of engine mods, looks very stock from outside '07 Commander '94 Land Rover Defender 90 POE #1500 '04 Audi S4 |
Re: ACCURATE SPEEDOMETER?
c wrote:
> Tracie wrote: >> On Sep 18, 6:10 am, Old Crow <wallisc...@yahoo.com> wrote: >>> On Mon, 17 Sep 2007 14:53:07 -0400, SnoMan <ad...@snoman.com> wrote: >>>> On Mon, 17 Sep 2007 12:52:55 -0500, c <c...@me.org> wrote: >>>>> Um, your statement is quite wrong. For instance, overdrive on my truck >>>>> reduces the RPM by 30% so yeah I am pretty sure my engine will wear >>>>> out >>>>> sooner if I choose to never use it. I will agree with you on the >>>>> lugging >>>>> part, especially if it causes pinging, but no, I will not sit here and >>>>> agree with you that my engine will last just as long turning 3000 >>>>> RPM as >>>>> it does turning 2100 RPM. That's insane. >>>> Gee how did I put close to 200K and a few 4x4's 20 to 30 years ago >>>> with 4.10 and 4.56 gears and no OD???? RPM as long as it is not >>>> excessive (like 4000 to 5000 RPM cruises ) will not shorten life at >>>> all. 2500 RPM or cruise for a V8 is childs play. How about a Toyota >>>> that when 220K with a 3000 to 3500 RPM cruise and more and was using >>>> a quart maybe every 3500 miles then. Also true RPM drop is determined >>>> by OD ratio and to get a 30% drop you need a .7 (like on a 700R4 or >>>> 4L60 or .69 on a Ally 5 speed) >>>> ----------------- >>>> TheSnoMan.com >>> Hey Snow, look out! There's another dead horse. Better get your >>> baseball bat. >>> -- >>> Old Crow "Yol Bolson!" '82 FLTC-P "Miss Pearl" >>> '95 YJ Rio Grande BS#133, SENS, TOMKAT, MAMBM >>> -- >>> Posted via a free Usenet account fromhttp://www.teranews.com- Hide >>> quoted text - >>> >>> - Show quoted text - >> >> Thanks Chris. That was helpful. :) >> I will just have to remember to fill my tank with 89 octane instead of >> 87. Is there much of a difference in effectiveness between the 89 and >> 93 as far as pinging is concerned? >> > > Well, the higher the octane, the more resistant to ping your Jeep will > be, but the question remains whether or not you need 93 octane to do the > job. If the 89 octane eliminates it, then you're good to go. If not, you > can try a 50/50 mix of 89 and 93 or try all 93. The goal in the end is > to get the most distance traveled with the least amount of money, and no > engine damage. Right now where I live, 87 and 89 are the same price for > whatever reason, so I just use the 89 octane. > > Chris Hi Chris, I live just south of Green Bay, and the Kwik Trip stores around here had 87 and 89 at the same price, but the 89 was blended with up to 10% of that ethanol crap (imo). I don't really look at the prices anymore; if I need gas, I buy gas. It's like milk. I have no clue how much a gallon of milk is. I just know that when one jug runs out, I need to buy another. I do look at ethanol content though. -- Pete (AKA Peter Stolz) '84 CJ-7 with a bunch of engine mods, looks very stock from outside '07 Commander '94 Land Rover Defender 90 POE #1500 '04 Audi S4 |
Re: ACCURATE SPEEDOMETER?
c wrote:
> Tracie wrote: >> On Sep 18, 6:10 am, Old Crow <wallisc...@yahoo.com> wrote: >>> On Mon, 17 Sep 2007 14:53:07 -0400, SnoMan <ad...@snoman.com> wrote: >>>> On Mon, 17 Sep 2007 12:52:55 -0500, c <c...@me.org> wrote: >>>>> Um, your statement is quite wrong. For instance, overdrive on my truck >>>>> reduces the RPM by 30% so yeah I am pretty sure my engine will wear >>>>> out >>>>> sooner if I choose to never use it. I will agree with you on the >>>>> lugging >>>>> part, especially if it causes pinging, but no, I will not sit here and >>>>> agree with you that my engine will last just as long turning 3000 >>>>> RPM as >>>>> it does turning 2100 RPM. That's insane. >>>> Gee how did I put close to 200K and a few 4x4's 20 to 30 years ago >>>> with 4.10 and 4.56 gears and no OD???? RPM as long as it is not >>>> excessive (like 4000 to 5000 RPM cruises ) will not shorten life at >>>> all. 2500 RPM or cruise for a V8 is childs play. How about a Toyota >>>> that when 220K with a 3000 to 3500 RPM cruise and more and was using >>>> a quart maybe every 3500 miles then. Also true RPM drop is determined >>>> by OD ratio and to get a 30% drop you need a .7 (like on a 700R4 or >>>> 4L60 or .69 on a Ally 5 speed) >>>> ----------------- >>>> TheSnoMan.com >>> Hey Snow, look out! There's another dead horse. Better get your >>> baseball bat. >>> -- >>> Old Crow "Yol Bolson!" '82 FLTC-P "Miss Pearl" >>> '95 YJ Rio Grande BS#133, SENS, TOMKAT, MAMBM >>> -- >>> Posted via a free Usenet account fromhttp://www.teranews.com- Hide >>> quoted text - >>> >>> - Show quoted text - >> >> Thanks Chris. That was helpful. :) >> I will just have to remember to fill my tank with 89 octane instead of >> 87. Is there much of a difference in effectiveness between the 89 and >> 93 as far as pinging is concerned? >> > > Well, the higher the octane, the more resistant to ping your Jeep will > be, but the question remains whether or not you need 93 octane to do the > job. If the 89 octane eliminates it, then you're good to go. If not, you > can try a 50/50 mix of 89 and 93 or try all 93. The goal in the end is > to get the most distance traveled with the least amount of money, and no > engine damage. Right now where I live, 87 and 89 are the same price for > whatever reason, so I just use the 89 octane. > > Chris Hi Chris, I live just south of Green Bay, and the Kwik Trip stores around here had 87 and 89 at the same price, but the 89 was blended with up to 10% of that ethanol crap (imo). I don't really look at the prices anymore; if I need gas, I buy gas. It's like milk. I have no clue how much a gallon of milk is. I just know that when one jug runs out, I need to buy another. I do look at ethanol content though. -- Pete (AKA Peter Stolz) '84 CJ-7 with a bunch of engine mods, looks very stock from outside '07 Commander '94 Land Rover Defender 90 POE #1500 '04 Audi S4 |
Re: ACCURATE SPEEDOMETER?
peachyracer > wrote:
> c wrote: >> Tracie wrote: >>> On Sep 18, 6:10 am, Old Crow <wallisc...@yahoo.com> wrote: >>>> On Mon, 17 Sep 2007 14:53:07 -0400, SnoMan <ad...@snoman.com> wrote: >>>>> On Mon, 17 Sep 2007 12:52:55 -0500, c <c...@me.org> wrote: >>>>>> Um, your statement is quite wrong. For instance, overdrive on my >>>>>> truck >>>>>> reduces the RPM by 30% so yeah I am pretty sure my engine will >>>>>> wear out >>>>>> sooner if I choose to never use it. I will agree with you on the >>>>>> lugging >>>>>> part, especially if it causes pinging, but no, I will not sit here >>>>>> and >>>>>> agree with you that my engine will last just as long turning 3000 >>>>>> RPM as >>>>>> it does turning 2100 RPM. That's insane. >>>>> Gee how did I put close to 200K and a few 4x4's 20 to 30 years ago >>>>> with 4.10 and 4.56 gears and no OD???? RPM as long as it is not >>>>> excessive (like 4000 to 5000 RPM cruises ) will not shorten life at >>>>> all. 2500 RPM or cruise for a V8 is childs play. How about a Toyota >>>>> that when 220K with a 3000 to 3500 RPM cruise and more and was using >>>>> a quart maybe every 3500 miles then. Also true RPM drop is determined >>>>> by OD ratio and to get a 30% drop you need a .7 (like on a 700R4 or >>>>> 4L60 or .69 on a Ally 5 speed) >>>>> ----------------- >>>>> TheSnoMan.com >>>> Hey Snow, look out! There's another dead horse. Better get your >>>> baseball bat. >>>> -- >>>> Old Crow "Yol Bolson!" '82 FLTC-P "Miss Pearl" >>>> '95 YJ Rio Grande BS#133, SENS, TOMKAT, MAMBM -- >>>> Posted via a free Usenet account fromhttp://www.teranews.com- Hide >>>> quoted text - >>>> >>>> - Show quoted text - >>> >>> Thanks Chris. That was helpful. :) >>> I will just have to remember to fill my tank with 89 octane instead of >>> 87. Is there much of a difference in effectiveness between the 89 and >>> 93 as far as pinging is concerned? >>> >> >> Well, the higher the octane, the more resistant to ping your Jeep will >> be, but the question remains whether or not you need 93 octane to do >> the job. If the 89 octane eliminates it, then you're good to go. If >> not, you can try a 50/50 mix of 89 and 93 or try all 93. The goal in >> the end is to get the most distance traveled with the least amount of >> money, and no engine damage. Right now where I live, 87 and 89 are the >> same price for whatever reason, so I just use the 89 octane. >> >> Chris > > Hi Chris, > I live just south of Green Bay, and the Kwik Trip stores around here had > 87 and 89 at the same price, but the 89 was blended with up to 10% of > that ethanol crap (imo). I don't really look at the prices anymore; if > I need gas, I buy gas. It's like milk. I have no clue how much a > gallon of milk is. I just know that when one jug runs out, I need to > buy another. I do look at ethanol content though. > Well, we are almost neighbors! Actually I'm an hour north of GB. My truck doesn't mind the ethanol mixed fuel like some vehicles do, so when I can get 89 octane for the same price as 87 I do. I have to pay more attention to which stations I buy my gas from. Some of it just runs like crap in my truck. Chris |
Re: ACCURATE SPEEDOMETER?
peachyracer > wrote:
> c wrote: >> Tracie wrote: >>> On Sep 18, 6:10 am, Old Crow <wallisc...@yahoo.com> wrote: >>>> On Mon, 17 Sep 2007 14:53:07 -0400, SnoMan <ad...@snoman.com> wrote: >>>>> On Mon, 17 Sep 2007 12:52:55 -0500, c <c...@me.org> wrote: >>>>>> Um, your statement is quite wrong. For instance, overdrive on my >>>>>> truck >>>>>> reduces the RPM by 30% so yeah I am pretty sure my engine will >>>>>> wear out >>>>>> sooner if I choose to never use it. I will agree with you on the >>>>>> lugging >>>>>> part, especially if it causes pinging, but no, I will not sit here >>>>>> and >>>>>> agree with you that my engine will last just as long turning 3000 >>>>>> RPM as >>>>>> it does turning 2100 RPM. That's insane. >>>>> Gee how did I put close to 200K and a few 4x4's 20 to 30 years ago >>>>> with 4.10 and 4.56 gears and no OD???? RPM as long as it is not >>>>> excessive (like 4000 to 5000 RPM cruises ) will not shorten life at >>>>> all. 2500 RPM or cruise for a V8 is childs play. How about a Toyota >>>>> that when 220K with a 3000 to 3500 RPM cruise and more and was using >>>>> a quart maybe every 3500 miles then. Also true RPM drop is determined >>>>> by OD ratio and to get a 30% drop you need a .7 (like on a 700R4 or >>>>> 4L60 or .69 on a Ally 5 speed) >>>>> ----------------- >>>>> TheSnoMan.com >>>> Hey Snow, look out! There's another dead horse. Better get your >>>> baseball bat. >>>> -- >>>> Old Crow "Yol Bolson!" '82 FLTC-P "Miss Pearl" >>>> '95 YJ Rio Grande BS#133, SENS, TOMKAT, MAMBM -- >>>> Posted via a free Usenet account fromhttp://www.teranews.com- Hide >>>> quoted text - >>>> >>>> - Show quoted text - >>> >>> Thanks Chris. That was helpful. :) >>> I will just have to remember to fill my tank with 89 octane instead of >>> 87. Is there much of a difference in effectiveness between the 89 and >>> 93 as far as pinging is concerned? >>> >> >> Well, the higher the octane, the more resistant to ping your Jeep will >> be, but the question remains whether or not you need 93 octane to do >> the job. If the 89 octane eliminates it, then you're good to go. If >> not, you can try a 50/50 mix of 89 and 93 or try all 93. The goal in >> the end is to get the most distance traveled with the least amount of >> money, and no engine damage. Right now where I live, 87 and 89 are the >> same price for whatever reason, so I just use the 89 octane. >> >> Chris > > Hi Chris, > I live just south of Green Bay, and the Kwik Trip stores around here had > 87 and 89 at the same price, but the 89 was blended with up to 10% of > that ethanol crap (imo). I don't really look at the prices anymore; if > I need gas, I buy gas. It's like milk. I have no clue how much a > gallon of milk is. I just know that when one jug runs out, I need to > buy another. I do look at ethanol content though. > Well, we are almost neighbors! Actually I'm an hour north of GB. My truck doesn't mind the ethanol mixed fuel like some vehicles do, so when I can get 89 octane for the same price as 87 I do. I have to pay more attention to which stations I buy my gas from. Some of it just runs like crap in my truck. Chris |
Re: ACCURATE SPEEDOMETER?
peachyracer > wrote:
> c wrote: >> Tracie wrote: >>> On Sep 18, 6:10 am, Old Crow <wallisc...@yahoo.com> wrote: >>>> On Mon, 17 Sep 2007 14:53:07 -0400, SnoMan <ad...@snoman.com> wrote: >>>>> On Mon, 17 Sep 2007 12:52:55 -0500, c <c...@me.org> wrote: >>>>>> Um, your statement is quite wrong. For instance, overdrive on my >>>>>> truck >>>>>> reduces the RPM by 30% so yeah I am pretty sure my engine will >>>>>> wear out >>>>>> sooner if I choose to never use it. I will agree with you on the >>>>>> lugging >>>>>> part, especially if it causes pinging, but no, I will not sit here >>>>>> and >>>>>> agree with you that my engine will last just as long turning 3000 >>>>>> RPM as >>>>>> it does turning 2100 RPM. That's insane. >>>>> Gee how did I put close to 200K and a few 4x4's 20 to 30 years ago >>>>> with 4.10 and 4.56 gears and no OD???? RPM as long as it is not >>>>> excessive (like 4000 to 5000 RPM cruises ) will not shorten life at >>>>> all. 2500 RPM or cruise for a V8 is childs play. How about a Toyota >>>>> that when 220K with a 3000 to 3500 RPM cruise and more and was using >>>>> a quart maybe every 3500 miles then. Also true RPM drop is determined >>>>> by OD ratio and to get a 30% drop you need a .7 (like on a 700R4 or >>>>> 4L60 or .69 on a Ally 5 speed) >>>>> ----------------- >>>>> TheSnoMan.com >>>> Hey Snow, look out! There's another dead horse. Better get your >>>> baseball bat. >>>> -- >>>> Old Crow "Yol Bolson!" '82 FLTC-P "Miss Pearl" >>>> '95 YJ Rio Grande BS#133, SENS, TOMKAT, MAMBM -- >>>> Posted via a free Usenet account fromhttp://www.teranews.com- Hide >>>> quoted text - >>>> >>>> - Show quoted text - >>> >>> Thanks Chris. That was helpful. :) >>> I will just have to remember to fill my tank with 89 octane instead of >>> 87. Is there much of a difference in effectiveness between the 89 and >>> 93 as far as pinging is concerned? >>> >> >> Well, the higher the octane, the more resistant to ping your Jeep will >> be, but the question remains whether or not you need 93 octane to do >> the job. If the 89 octane eliminates it, then you're good to go. If >> not, you can try a 50/50 mix of 89 and 93 or try all 93. The goal in >> the end is to get the most distance traveled with the least amount of >> money, and no engine damage. Right now where I live, 87 and 89 are the >> same price for whatever reason, so I just use the 89 octane. >> >> Chris > > Hi Chris, > I live just south of Green Bay, and the Kwik Trip stores around here had > 87 and 89 at the same price, but the 89 was blended with up to 10% of > that ethanol crap (imo). I don't really look at the prices anymore; if > I need gas, I buy gas. It's like milk. I have no clue how much a > gallon of milk is. I just know that when one jug runs out, I need to > buy another. I do look at ethanol content though. > Well, we are almost neighbors! Actually I'm an hour north of GB. My truck doesn't mind the ethanol mixed fuel like some vehicles do, so when I can get 89 octane for the same price as 87 I do. I have to pay more attention to which stations I buy my gas from. Some of it just runs like crap in my truck. Chris |
Re: ACCURATE SPEEDOMETER?
peachyracer > wrote:
> c wrote: >> Tracie wrote: >>> On Sep 18, 6:10 am, Old Crow <wallisc...@yahoo.com> wrote: >>>> On Mon, 17 Sep 2007 14:53:07 -0400, SnoMan <ad...@snoman.com> wrote: >>>>> On Mon, 17 Sep 2007 12:52:55 -0500, c <c...@me.org> wrote: >>>>>> Um, your statement is quite wrong. For instance, overdrive on my >>>>>> truck >>>>>> reduces the RPM by 30% so yeah I am pretty sure my engine will >>>>>> wear out >>>>>> sooner if I choose to never use it. I will agree with you on the >>>>>> lugging >>>>>> part, especially if it causes pinging, but no, I will not sit here >>>>>> and >>>>>> agree with you that my engine will last just as long turning 3000 >>>>>> RPM as >>>>>> it does turning 2100 RPM. That's insane. >>>>> Gee how did I put close to 200K and a few 4x4's 20 to 30 years ago >>>>> with 4.10 and 4.56 gears and no OD???? RPM as long as it is not >>>>> excessive (like 4000 to 5000 RPM cruises ) will not shorten life at >>>>> all. 2500 RPM or cruise for a V8 is childs play. How about a Toyota >>>>> that when 220K with a 3000 to 3500 RPM cruise and more and was using >>>>> a quart maybe every 3500 miles then. Also true RPM drop is determined >>>>> by OD ratio and to get a 30% drop you need a .7 (like on a 700R4 or >>>>> 4L60 or .69 on a Ally 5 speed) >>>>> ----------------- >>>>> TheSnoMan.com >>>> Hey Snow, look out! There's another dead horse. Better get your >>>> baseball bat. >>>> -- >>>> Old Crow "Yol Bolson!" '82 FLTC-P "Miss Pearl" >>>> '95 YJ Rio Grande BS#133, SENS, TOMKAT, MAMBM -- >>>> Posted via a free Usenet account fromhttp://www.teranews.com- Hide >>>> quoted text - >>>> >>>> - Show quoted text - >>> >>> Thanks Chris. That was helpful. :) >>> I will just have to remember to fill my tank with 89 octane instead of >>> 87. Is there much of a difference in effectiveness between the 89 and >>> 93 as far as pinging is concerned? >>> >> >> Well, the higher the octane, the more resistant to ping your Jeep will >> be, but the question remains whether or not you need 93 octane to do >> the job. If the 89 octane eliminates it, then you're good to go. If >> not, you can try a 50/50 mix of 89 and 93 or try all 93. The goal in >> the end is to get the most distance traveled with the least amount of >> money, and no engine damage. Right now where I live, 87 and 89 are the >> same price for whatever reason, so I just use the 89 octane. >> >> Chris > > Hi Chris, > I live just south of Green Bay, and the Kwik Trip stores around here had > 87 and 89 at the same price, but the 89 was blended with up to 10% of > that ethanol crap (imo). I don't really look at the prices anymore; if > I need gas, I buy gas. It's like milk. I have no clue how much a > gallon of milk is. I just know that when one jug runs out, I need to > buy another. I do look at ethanol content though. > Well, we are almost neighbors! Actually I'm an hour north of GB. My truck doesn't mind the ethanol mixed fuel like some vehicles do, so when I can get 89 octane for the same price as 87 I do. I have to pay more attention to which stations I buy my gas from. Some of it just runs like crap in my truck. Chris |
Re: ACCURATE SPEEDOMETER?
take it to a shop that has a good scantool and have them program the tire size
into the pinion setting to obtain corect mph Jeff Strickland wrote: > Your watch is a bit clunky, but the method is correct. > > A stop watch works better. Ignore the odometer, and measure your miles with > the mile markers along the shoulder of all federal and most state highways. > Divide the time in seconds that it takes to travel a measured mile into > 3600, the result will be your speed. > > Set the Cruise Control at 60. Measure the time it takes to go a mile. Divide > 3600 by the time. 3600 / 60 =- 60. 3600 / 52 = 70. 3600 / 45 = 80. > > "Tracie" <brainart@upstate.edu> wrote in message > news:1190034987.028338.291940@19g2000hsx.googlegro ups.com... > > Hello all. I have a 2006 Wrangler X with 6 speed manual tranny, 3.07 > > gearing, and D30 front/35 rear. I recently upgraded my tires from the > > stock 215/75/15 to 31/10.5/15 BFG All Terrain T/A KO. I am looking > > for a reliable way to tell if my speedometer is off at all with the > > tire upgrade. I do not have access to a GPS system. What I HAVE done > > is to use the tripometer (with tenths), and hold steady at 60 mph (my > > speedometer said 60) for one mile while watching my clock. I am > > EXTREMELY close to going 1 mile in 1 minute by using this method. Is > > this reliable to tell whether or not my speedometer is dead on? I > > have NOT changed the speedometer gear yet, or had the computer changed > > to reflect the larger sized tires. Also, I am not using my OD (6th) > > much on the highway, but when I get up to 65 (the speedometer says > > 65), I am running at about 2500 rpms in 5th. Is this bad, or should I > > be shifting into the OD (6th)? I do fine with 1st through 5th. Just > > not sure what speed or what rpms I should be using 6th. Any help is > > really appreciated. > > |
Re: ACCURATE SPEEDOMETER?
take it to a shop that has a good scantool and have them program the tire size
into the pinion setting to obtain corect mph Jeff Strickland wrote: > Your watch is a bit clunky, but the method is correct. > > A stop watch works better. Ignore the odometer, and measure your miles with > the mile markers along the shoulder of all federal and most state highways. > Divide the time in seconds that it takes to travel a measured mile into > 3600, the result will be your speed. > > Set the Cruise Control at 60. Measure the time it takes to go a mile. Divide > 3600 by the time. 3600 / 60 =- 60. 3600 / 52 = 70. 3600 / 45 = 80. > > "Tracie" <brainart@upstate.edu> wrote in message > news:1190034987.028338.291940@19g2000hsx.googlegro ups.com... > > Hello all. I have a 2006 Wrangler X with 6 speed manual tranny, 3.07 > > gearing, and D30 front/35 rear. I recently upgraded my tires from the > > stock 215/75/15 to 31/10.5/15 BFG All Terrain T/A KO. I am looking > > for a reliable way to tell if my speedometer is off at all with the > > tire upgrade. I do not have access to a GPS system. What I HAVE done > > is to use the tripometer (with tenths), and hold steady at 60 mph (my > > speedometer said 60) for one mile while watching my clock. I am > > EXTREMELY close to going 1 mile in 1 minute by using this method. Is > > this reliable to tell whether or not my speedometer is dead on? I > > have NOT changed the speedometer gear yet, or had the computer changed > > to reflect the larger sized tires. Also, I am not using my OD (6th) > > much on the highway, but when I get up to 65 (the speedometer says > > 65), I am running at about 2500 rpms in 5th. Is this bad, or should I > > be shifting into the OD (6th)? I do fine with 1st through 5th. Just > > not sure what speed or what rpms I should be using 6th. Any help is > > really appreciated. > > |
Re: ACCURATE SPEEDOMETER?
take it to a shop that has a good scantool and have them program the tire size
into the pinion setting to obtain corect mph Jeff Strickland wrote: > Your watch is a bit clunky, but the method is correct. > > A stop watch works better. Ignore the odometer, and measure your miles with > the mile markers along the shoulder of all federal and most state highways. > Divide the time in seconds that it takes to travel a measured mile into > 3600, the result will be your speed. > > Set the Cruise Control at 60. Measure the time it takes to go a mile. Divide > 3600 by the time. 3600 / 60 =- 60. 3600 / 52 = 70. 3600 / 45 = 80. > > "Tracie" <brainart@upstate.edu> wrote in message > news:1190034987.028338.291940@19g2000hsx.googlegro ups.com... > > Hello all. I have a 2006 Wrangler X with 6 speed manual tranny, 3.07 > > gearing, and D30 front/35 rear. I recently upgraded my tires from the > > stock 215/75/15 to 31/10.5/15 BFG All Terrain T/A KO. I am looking > > for a reliable way to tell if my speedometer is off at all with the > > tire upgrade. I do not have access to a GPS system. What I HAVE done > > is to use the tripometer (with tenths), and hold steady at 60 mph (my > > speedometer said 60) for one mile while watching my clock. I am > > EXTREMELY close to going 1 mile in 1 minute by using this method. Is > > this reliable to tell whether or not my speedometer is dead on? I > > have NOT changed the speedometer gear yet, or had the computer changed > > to reflect the larger sized tires. Also, I am not using my OD (6th) > > much on the highway, but when I get up to 65 (the speedometer says > > 65), I am running at about 2500 rpms in 5th. Is this bad, or should I > > be shifting into the OD (6th)? I do fine with 1st through 5th. Just > > not sure what speed or what rpms I should be using 6th. Any help is > > really appreciated. > > |
| All times are GMT -4. The time now is 08:02 PM. |
© 2024 MH Sub I, LLC dba Internet Brands