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Old 06-25-2019, 10:52 AM   #31
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You should get around 18 mpg. Here is a picture shows mine, had it up to 21 mpg, depends on my foot. This is every day driving.

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1995 YJ. That's it...from Jeep. 5.3L Chevy LM7, 4L60e, NV233C Transfer Case with electronic Shift, 2.5" RC Lift. 8.8 Ford Rear with Yucon Posi Grip, 4.10 Gears, 33x12.5x15 KM2's. Marshall Instruments Gauges, Sick Speed Racing Seats.
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Old 06-26-2019, 06:51 PM   #32
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Very nice build I wanted to do a 5.3 in mine but I don’t have the budget. It’s already taken me 3 years to get to where I am at. Still probably a year away from driving it. Nice to see that it can be done. Looks awesome !

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Old 06-28-2019, 09:34 PM
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Great build! I had my mechanic do the same with my '91. I'm getting to old to do all that work myself. I also use a Aeroforce Scangauge but mine reads a volt low from a reading at the alternator or battery. Have you experience this? My drive train is the same as yours and it was a 2.5L originally. Also what MPG are you getting? I was getting 11mpg then we found a bad coil and replaced it so now get 15.5mpg. Everyone I talk to thinks I should get 18mpg. By the way I also have a OBDLink MX that reads the correct voltage when I plug it in.
Thanks!! My scangauge and Autometer coolant gauge are about 10 degrees off from each other. That's the only thing that I've really noticed that is off. The scangauge reads 10 degrees hotter than the Autometer gauge. As for MPG, I'm sitting at just under 18 MPG on average right now. I still need to do a full MAF & WOT tune on the Jeep. I figured with the NBSS intake and CAI the stock tune is probably a little off now. I've got the tuning software and hardware, just haven't had the time to retune it yet.
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Old 06-28-2019, 09:35 PM
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You should get around 18 mpg. Here is a picture shows mine, had it up to 21 mpg, depends on my foot. This is every day driving.
That's a great looking dash setup!!
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Old 06-28-2019, 09:36 PM
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Very nice build I wanted to do a 5.3 in mine but I don’t have the budget. It’s already taken me 3 years to get to where I am at. Still probably a year away from driving it. Nice to see that it can be done. Looks awesome !
Thanks!! This has been a ton of fun so far. Just keep at it, your build will be well worth it once it's done the way you want it.
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Old 07-01-2019, 10:03 AM   #36
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What Tuning software and hardware are you using? I have been looking around trying to find the best affordable tuning SF and HW myself.
Thanks Gene
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'91 YJ Sport, 4" shackle lift. Cromoly solid front axle, Dana 30 w/ Detroit TrueTrac, 4.10 gears, SYE Kit, LM7 5.3L, Ford 8.8 LSD, 4L60 tranny, 33x12.5x15 Cooper STT Muds, Dual exhaust, custom rear bumper w/tire carrier, button starter on dash, crappy hard top!
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Old 07-01-2019, 11:13 PM
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What Tuning software and hardware are you using? I have been looking around trying to find the best affordable tuning SF and HW myself.
Thanks Gene
I'm using HPTuners. I've also got The Tuning School's beginners GM book/manual that I bought to help learn how to tune for a few projects ago. It's a great way to get started if you haven't tuned before.
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Old 07-03-2019, 09:33 AM   #38
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Thanks for that!
My mechanic installed a radiator with a builtin trans cooler. Yesterday in the heat of the day (100 degrees) my scangauge showed 206 for trans fluid and the shifter was very hot to the touch. What trans cooler are you using. I'm thinking I need to install an external trans cooler.
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'91 YJ Sport, 4" shackle lift. Cromoly solid front axle, Dana 30 w/ Detroit TrueTrac, 4.10 gears, SYE Kit, LM7 5.3L, Ford 8.8 LSD, 4L60 tranny, 33x12.5x15 Cooper STT Muds, Dual exhaust, custom rear bumper w/tire carrier, button starter on dash, crappy hard top!
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Old 07-03-2019, 12:35 PM   #39
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don't get your hopes up to much. I have n external trans cooler and the temps at about 110 outside, my temp. climbed to 220 on the trans. and 210 to 220 on the engine. At that temps outside, looks like normal operating conditions.
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1995 YJ. That's it...from Jeep. 5.3L Chevy LM7, 4L60e, NV233C Transfer Case with electronic Shift, 2.5" RC Lift. 8.8 Ford Rear with Yucon Posi Grip, 4.10 Gears, 33x12.5x15 KM2's. Marshall Instruments Gauges, Sick Speed Racing Seats.
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Old 07-03-2019, 09:56 PM
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Thanks for that!
My mechanic installed a radiator with a builtin trans cooler. Yesterday in the heat of the day (100 degrees) my scangauge showed 206 for trans fluid and the shifter was very hot to the touch. What trans cooler are you using. I'm thinking I need to install an external trans cooler.
I'm currently running an 8"X11" external B&M cooler that is mounted right in front of the radiator on the passenger side. It's been just under 100 degrees here lately and I haven't seen the trans get above 180 during stop and go city driving or highway driving. I am also not getting on it all that hard either, so I'm not sure how much that plays into the equation.
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Old 07-09-2019, 07:36 AM   #41
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Sweet build! I’ll be reading through this when I get more time.
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Old 07-09-2019, 07:40 AM   #42
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Awesome build! Love the LS swap you did!!!!
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Old 07-09-2019, 10:04 PM
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Sweet build! Ill be reading through this when I get more time.
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Awesome build! Love the LS swap you did!!!!
Thanks!! If you guys have in questions just let me know. I'll help however I can.
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- 95 YJ
--5.3L LS w/NBSS intake, DIY CAI, & factory manifolds; DIY LS standalone conversion harness; Novak conversion mounts; SYE kit; Tom woods driveshaft; 8.8 rear w/factory disk brakes, LSD, & 4.10 gears; 4L65E trans; M.O.R.E traction bar; Autometer gauges w/Aeroforce scan gauge; 2.5" OME lift; BFG KO2s in 33X12.5X15
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Old 07-10-2019, 08:36 AM   #44
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I really like the gauges. That really makes the interior in my opinion!!! What's the last gauge on the right?
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Old 07-11-2019, 05:40 AM
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I really like the gauges. That really makes the interior in my opinion!!! What's the last gauge on the right?
Thanks!! That's the Aeroforce Scanguage that plugs into the OBD2 port and pulls different sensor readings straight from the ECU.

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- 95 YJ
--5.3L LS w/NBSS intake, DIY CAI, & factory manifolds; DIY LS standalone conversion harness; Novak conversion mounts; SYE kit; Tom woods driveshaft; 8.8 rear w/factory disk brakes, LSD, & 4.10 gears; 4L65E trans; M.O.R.E traction bar; Autometer gauges w/Aeroforce scan gauge; 2.5" OME lift; BFG KO2s in 33X12.5X15
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