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81 ford fairmont # 4 (4.8, ls1cam, on3-76,60e, stock driveshaft and 7.5 rear)

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Old 02-03-2014, 10:36 PM
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Just for clarity, what gear do you start your burnouts in with your 4l80es? I hear you can ****. The OD roller clutch up if you do it "incorrectly". Is there a right or wrong way?
Old 02-03-2014, 10:47 PM
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well any gear... lol

other than that i pull up to the box in third, do a burnout for 1 sec wich is 1-2-3 and then launch still in third...

other than that i brake boost the car loose in every gear.
Old 02-04-2014, 04:17 AM
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Lol ok. Do you shift into 4th at all?
Old 02-04-2014, 10:16 AM
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not white doing burnouts or highway runs into the 160 range, not sure if the OD clutch can hold it.
Old 02-04-2014, 12:29 PM
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Originally Posted by denmah
not white doing burnouts or highway runs into the 160 range, not sure if the OD clutch can hold it.
Pvssy...I mean...

I just threw my 80e together last week. Stocker with a Transgo HD2 and 5.3L/S400SX4-75 ahead of it. I am planning on running that pig out the back end in OD at the track with 3.73s and a 27inch tire. Should be able to get thru the traps without hitting OD, but if I don't, I'll report back from the hospital!
Old 02-04-2014, 08:43 PM
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well the car is running 13psi of boost and doing great, speedometer is GPS accurate and i am setting up shift points and dialing in fuel as we go.

also wired in the camaro dash fuel level today! working good

since my stock sending unit was bad, i installed a universal 0-90 ohm sending unit in the stock tank, and ran that to the PCM today and setup the stock gauge in the software, unbelievable how easy that was, i couldnt believe it. so just oil pressure left to do now.

81 ford fairmont # 4 (4.8, ls1cam, on3-76,60e, stock driveshaft and 7.5 rear)-j7pu412.jpg
81 ford fairmont # 4 (4.8, ls1cam, on3-76,60e, stock driveshaft and 7.5 rear)-kk96xhb.jpg
Old 02-04-2014, 09:09 PM
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Originally Posted by BanditDave
Pvssy...I mean...

I just threw my 80e together last week. Stocker with a Transgo HD2 and 5.3L/S400SX4-75 ahead of it. I am planning on running that pig out the back end in OD at the track with 3.73s and a 27inch tire. Should be able to get thru the traps without hitting OD, but if I don't, I'll report back from the hospital!
Its not recommended putting down any power in overdrive. Even some of the 4L80 builders don't recommend pushing more than 500 HP through the overdrive clutch.

With a 27" tire and 3.73s you'll be running through the traps at exactly 140 MPH at 6500 RPM in third gear. If you've got the power to push it faster than that and you shift into overdrive, the trans will probably let go. You'll also be at ~70 mph at just shy of 2500 RPM in overdrive.

You'll pick up 5 MPH with a 28" tire, or 7 MPH by swapping those out to 3.55s.


With a 28" slick and 3.23s, I'll be able to run out to 160 mph at 6200 RPM in third, leaving me tons of room for upgrades. I'll also be at 70 MPH on the highway in overdrive at ~2050 RPM.
Old 02-04-2014, 11:12 PM
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do tell more on that fuel gauge setup, what did you have to do in hp tuners?
Old 02-05-2014, 08:31 AM
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Originally Posted by merim123
do tell more on that fuel gauge setup, what did you have to do in hp tuners?
81 ford fairmont # 4 (4.8, ls1cam, on3-76,60e, stock driveshaft and 7.5 rear)-r7frrqe.png
Old 02-06-2014, 06:56 PM
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Drove the car 75miles probably or more

another 50 miles just today (25 yesterday and day before)
its almost perfect, just some more cruising and whatnot to confirm and i wanna drive it everyday and make sure it keeps doing alright, no leaks, no problems, just want to finish up some interior wiring for power accessories and maybe swap the head unit, very very happy with this car.

tinkered today for a while got my shift points where i want, also 80mph is 2000rpm and 95mph is 2350 or so haha OD ftw

81 ford fairmont # 4 (4.8, ls1cam, on3-76,60e, stock driveshaft and 7.5 rear)-wmmw4gu.jpg
81 ford fairmont # 4 (4.8, ls1cam, on3-76,60e, stock driveshaft and 7.5 rear)-ai6ngjo.jpg

sooooo happy with how the car runs and drives, its amazing really
Old 02-06-2014, 07:07 PM
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this is still the on3 turbo right and the 4.8?
Old 02-06-2014, 08:21 PM
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Correct
Old 02-06-2014, 08:22 PM
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Old 02-07-2014, 12:47 AM
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Originally Posted by denmah
not white doing burnouts or highway runs into the 160 range, not sure if the OD clutch can hold it.
Ok so pretty much, u never go above 3rd when making a hard pull? Sorry man I'm just trying to get a grasp on this. Lol I don't want to **** up anything
Old 02-07-2014, 01:02 AM
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check your relay for the fan for the heat. when they fail, typically fan only operates on high (on my dodge anyway). Also- fbody has a longer oil pressure sender the truck has the shorty (and a different pig tail)
Old 02-07-2014, 05:59 AM
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Originally Posted by Ron_Stoppable
Ok so pretty much, u never go above 3rd when making a hard pull? Sorry man I'm just trying to get a grasp on this. Lol I don't want to **** up anything
No. No overdrive gear should ever be used to put down serious power unless the transmission was built specifically for it.
Old 02-07-2014, 02:01 PM
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lets start a betting pool on how long that 7.5 is gonna last,ha
Old 02-07-2014, 02:43 PM
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It may last longer than the 60e. Not sure which is the weak link, won't take long to find out.
Old 02-07-2014, 03:35 PM
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Did you put a transgo kit in the 60e? I had one with similar mileage hold up to 430hp/390tq in a 3650lb camaro a few years back cutting 1.6 60's all day at the track. Keep it cool and it'll live ok.
Old 02-08-2014, 02:09 AM
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Originally Posted by Photochop
Did you put a transgo kit in the 60e? I had one with similar mileage hold up to 430hp/390tq in a 3650lb camaro a few years back cutting 1.6 60's all day at the track. Keep it cool and it'll live ok.
it is out of the truck stock i have done no modifications

i have only modded the ECU settings for the trans wich yielded amazing results, the bitch really hits gears hard. so i think itll be happy for a while


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