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Which Jeep Gladiator Supercharger?
- Thread starter Gcunha8841
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Flyin6
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Unless you know something beyond what they advertise on the website...
I just checked the Livernois website. They show that they do not support the newer GPEC5 ECM. They are now offering a mailable GEPC2 unlocking service (Before this you had to send your ECM to them to unlock.)
Flyin6
Well-Known Member
Procharger will sell you a "tuner" kit that places the burden on you to unlock your GEPC5 computer, which is still impossible (I think)
kevman65
Well-Known Member
Dig a little deeper.
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StevieY1
Well-Known Member
Lookin good Kevman - I just emailed Procharger from their website for a detailed description of the tuning process - on their website they say tuning included completely turnkey on the 24 Gladdy
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Zachanadandy
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Regearing for power is a myth. It does nothing that a downshift won't aside from 1st gear. With our 4.7-1 1st gear in the 8 speed none of us are lacking there. We have the same 1st gear ratio with factory 4.10s as a late model JK auto with 5.13s or an early JK or TJ or XJ auto with 6.73s. Yet thousands of us wheeled and drove those rigs through the same trails with maybe 4.56s or 4.88s on 35s-37s. Wanna know how your Jeep will drive with 5.13s? Downshift. 5.13s in 8th is the same final drive ratio as 4.10s in 7th. No it doesn't feel at all like it's got an extra 100hp no matter how many times you downshift. If that worked we'd all just drive around in low range.
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Flyin6
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Zachanadandy
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Tuning is tuning. Cracking the encryption was the hard part. Now that they've done that there's no "guinea pig". The tuning isn't different between gpec2 or gpec5.
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Zachanadandy
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Dig a little deeper still...
Under required options is says you must verify via picture that you have the GPEC2A. It seems retarded that they don't know that nobody with a 2023 and up has the 2A and they are getting our hopes up for nothing.
Flyin6
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What I thought when reading it. It clearly shows a picture of the GPEC2A on the unlocking page, no -5 noted. Personally, with the rolling key thing, I am wondering how anyone could unlock the GPEC5 units.Dig a little deeper still...
Under required options is says you must verify via picture that you have the GPEC2A. It seems retarded that they don't know that nobody with a 2023 and up has the 2A and they are getting our hopes up for nothing.
I will call Livernois Monday just to be sure, but I am strongly suspicious of anyone having unlocked the newer spec ECM's
Zachanadandy
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I know HP tuners allegedly has from people who spoke to them at Sema but I've yet to see anything come to market from anyone.
Zachanadandy
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I heard the pin outs are different between the GPEC2A and the 5, but it seems like the easy fix would be an adapter harness so we could just run an unlocked/tuned 2A in our late model rigs. I can't imagine they actually changed any sensors or wiring that would prevent it but who knows?
Flyin6
Well-Known Member
I just searched on the internet
Indeed, HP tuners is now available for the GPEC5 ECM. You begin by shipping your ECM to HP tuners or one of many other companies providing the service. They return it unlocked with the same tune.
I used to tune my own supercharged Suburban with HP tuners, and I can say engine tuning is not for the novice. I'd stick with the best tuner I could afford.
In any event, it appears as though the door is finally open!
Indeed, HP tuners is now available for the GPEC5 ECM. You begin by shipping your ECM to HP tuners or one of many other companies providing the service. They return it unlocked with the same tune.
I used to tune my own supercharged Suburban with HP tuners, and I can say engine tuning is not for the novice. I'd stick with the best tuner I could afford.
In any event, it appears as though the door is finally open!
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