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Previous Thread Next Thread Print Thread Rate Thread Page 2 of 2 1 2 Re: New Diesel Raider Owner: Couple of Questions [Re: plh] #1076530 02/05/15 03:40 PM Joined: Jan 2015 Posts: 9 Washington C Collinstr OP Need a Spot Sorry if that was confusing. Earlier, I posted that at 50mph my tach is reading 3K rpm. According to the chart, with 4.626 gears, I should only be at 2147 RPM. Were there lower gears made than 4.626? Another thing I just thought about, could it perhaps be the dakota digital tach unit is acting up? thanks. Re: New Diesel Raider Owner: Couple of Questions [Re: Collinstr] #1076531 02/05/15 04:23 PM Joined: Nov 2008 Posts: 1,435 Milwaukee Wisconsin plh Body Damage is Cool a couple things to create the in-accuracy. Your tires if sidewalls say 31" x something really are not 31" high. Probably closer to 29.5" or 30". Speedo in truck is not accurate, are you verifying with a GPS? Tach is not accurate. What transmission do you have? edit: I see way back its a 5 speed - so assume either a KM145 or V5MT1 which 5th gear is not too far different. I'd check the DD tach adapter. Can't get anything lower than 5.29 (~2600 rpm w/ 29" tires @ 50mph KM145) differential gears, so most likely the gages are incorrect. Last edited by plh; 02/05/15 08:16 PM. '83 Might Max: IG @83mmax '88 Raider: my OG '89 Raider: rescued '92 RS M/T: sold '93 SR: sent to crusher '05 Montero LTD: sold '18 PHEV: wife's daily '14 OL GT http://www.tuffpans.com Re: New Diesel Raider Owner: Couple of Questions [Re: plh] #1076532 02/06/15 05:10 PM Joined: Jan 2015 Posts: 9 Washington C Collinstr OP Need a Spot It's got 31" BFG A/T's. I GPS'd the speed and you are right, its about 2-3 mph off at 50mph. This still places the RPM's at ~2700 so I'm pretty sure the the DD adapter is off. I'll try to calibrate it this weekend and let you know. I bought the rig with it already set up, so I'm gonna take the easy route and blame the last guy, haha. Page 2 of 2 1 2 Moderated by  4x4Wire, Macka, Mudraider, off-roader, PHIL_, rxinhed  Hop To Mitsubishi Forums ------  Mitsubishi 4x4 and SUV Tech  Mitsubishi Diesels  Mitsubishi ArchiveToyota Forums ------  Early Toyota Trucks  Toyota 4Runner, FJ Cruiser &...  T100 & Tundra Forum  Tacoma Forum  Toyota Tech ArchiveJeep Forums ------  Jeep Talk  Jeep TechIsuzu Forums ------  Isuzu 4x4 & SUV Talk  Isuzu 4x4 & SUV Tech  Isuzu DieselsKia Forums ------  Kia Talk  Kia Sportage & Sorento TechOff Topic Chat ------  4x4 Gallery  Off-Topic Chat  Recreational Access & Land ...  Politics4xForums ------  Outdoor Gear  General 4x4 Discussion  Tools and Fabrication  General Communications  Amateur Radio  GPS and MapsParts Bin ------  Private Party - Garage Sale  Private Party - Items wanted  Vendors, Hot Deals, Group Buys4x4Wire Back Yard ------  Suzuki Forum  AZ Crawler Crew  Cal-Nev Crew  General Ford 4x4 & SUV Forum  General Dodge 4x4 & SUV Forum  General Chevy 4x4 & SUV ForumFeedback & Testing ------  Problems, Questions, Suggestions4x4Wire Staff ------  Forum Moderators  Problem Threads Print Thread Switch to Threaded Mode 5 Excellent 4 Good 3 Average 2 Bad 1 Terrible View Profile Private Message Follow User Forum Posts View Profile Private Message Homepage Follow User Forum Posts View Profile Private Message Follow User Forum Posts

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