R2.8 tuning

[RePowerToy]

Just finally received my R2.8 for the insulation in a 75 IH Scout
that my son owns, with the programming of the EGR delete and ,we have built a 6L80 do you have programming options for this also we have not purchased one yet?
Thank you for your time

Send me a PM or call or txt and I will give you details.
Thanks
marc
505eight50307nine

[Duck454ss]

i'm exploring putting the 2.8 into a Jeep JK unlimited. Hopes are to gut it and keep things simple. Very much K.I.S.S. method. Since i live in Canada and emissions really isnt an issue, what power options are there if i wanted to be comfortable rolling on 37/40" tires and not be a pig on fuel. Hopes are for it to be a daily driver still.

[RePowerToy]

Built plenty of rigs like this. Gearing is key and keeping weight to a minimum. 200hp 400ft lb tune likely will do what you need all day long and still get better mpg than the gas options.

[Duck454ss]

Built plenty of rigs like this. Gearing is key and keeping weight to a minimum. 200hp 400ft lb tune likely will do what you need all day long and still get better mpg than the gas options.

What would you say the ideal cruising rpm would be for that tune? peak TQ looks like it is at around 2300 with original tune peak hitting at ~1700rpm. i was thinking if i could roll 72mph (115kph here in canada) at 2100-2200 i'd be in a sweet spot.

Thoughts?

[RePowerToy]

You are on the right numbers. My tuning has a peak TQ between 2200 and 2300 rpm

[Duck454ss]

Would there be any benefit to running a compound turbo system to hold those tq numbers past 22-2300? or even have that peak shift lower in the RPM range?

[nuffsaid]

I like the idea of the 200/400 tune, I run 2200 rpms at 62 mph right now with 4.56 gears and 35's, but will this tune kill my AX15? I worry about 5th gear being able to handle the constant torque since on the street 5th gear does all the work.

[Cuda519]

How are the tune’s going it looks like it’s been a while since you have posted

[79FJ40]

Anyone doing tunes these days? I'm very interested......

[2ltrunner]

Marc/RePower Toy is still doing them AFAIK, we talked recently but I went in different direction out of convenience and wanting to work with someone local to me. HMS Diesel in Dublin, CA helped me out w an efi live tune.

[rud404]

Are you happy with the tune from HMS? Any numbers on HP/Torque?

[2ltrunner]

Yes I am happy with the tune, primarily they smoothed out the lurchiness that it had on acceleration and when hitting bumps which was my primary goal. Before when I hit bumps my foot would dip a little and then it would cause a surge of acceleration which would in turn cause my suspension to move which would then cause my foot to dip... and it was easy to get in to a lurchy cycle and I would find myself pre-emptively shying off the accelerator pedal in rough terrain. They smoothed that acceleration ramp so i dont feel like im constantly correcting with my foot as much and that's what I was looking for. They told me theres a little more power in there as well but I havent been able to notice too much of a difference there as a very rarely find occasion to floor it.

HMS gets two thumbs up from me, they helped me sort out the issue I was trying to solve and they were nice people to work with. Mine was the first r2.8 they'd worked with so there was a bit of a learning curve for everyone involved but I'm glad they were interested in my project and helping me with something a little different.