Topic: AMC 2.5L not the same as Chrysler 2.5L

[omegalis]

has anyone tried running an ecu from a turbo charged dodge, like the daytona or voyager?

from what little i have found so far they seem to run the same sbec ecu, must run a 2bar map or have some other trick to handle the boost.

found a forum for them http://www.turbododge.com/forums/f21/ just started looking through it so don't know any of the details yet.

[Jeffy]

has anyone tried running an ecu from a turbo charged dodge, like the daytona or voyager?

from what little i have found so far they seem to run the same sbec ecu, must run a 2bar map or have some other trick to handle the boost.

found a forum for them http://www.turbododge.com/forums/f21/ just started looking through it so don't know any of the details yet.

It's not the same engine.

[omegalis]

I know that, but as they are of similar or same displacement, and seem to use the same basic model of ecu thought it might be swapable, or the map sensor if it is 2 or 3 bar, as a cheaper alternative to an aftermarket solution.

[Jeffy]

I know that, but as they are of similar or same displacement, and seem to use the same basic model of ecu thought it might be swapable, or the map sensor if it is 2 or 3 bar, as a cheaper alternative to an aftermarket solution.

PCM's are not in anyway universal.  The Dodge 2.5L is based off of the Dodge 2.2L and are usually DOHC.

[omegalis]

PCM's are not in anyway universal.  The Dodge 2.5L is based off of the Dodge 2.2L and are usually DOHC.

k, thought I would throw it out there, at the very least thought the sensors might be compatible.  didn't see anything in the previous turbo threads about any parts interchangeability between the older dodge turbos and our 2.5.

as a little background since i'm new here, i'm used to the GM LS based motors which have pretty extensive aftermarket support and as such are pretty easy to modify and there's a massive amount of info on the web on how to do it. so i'm still learning the ropes with this motor that has been around for over twice as long but has little aftermarket support and other than this site has little support within the jeep community on the web (other than the always massively helpful, "take it out and put something bigger in" ).

[Jeffy]

k, thought I would throw it out there, at the very least thought the sensors might be compatible.  didn't see anything in the previous turbo threads about any parts interchangeability between the older dodge turbos and our 2.5.

Our engines aren't Dodges, they're AMC.  The AMC was always a N/S engine while the Dodge is a transverse engine.  They don't share any internal parts.

The only exception is the Jeep 2.4L which is a Chrysler World Engine so it's used in many other cars, SUV's and mini-vans.

[omegalis]

Our engines aren't Dodges, they're AMC.  The AMC was always a N/S engine while the Dodge is a transverse engine.  They don't share any internal parts.

The only exception is the Jeep 2.4L which is a Chrysler World Engine so it's used in many other cars, SUV's and mini-vans.

Knew its an AMC, thought the MPFI was developed after Chrysler acquired AMC so there might be some interchangeability when it came to the ECU and its associated sensors. sorry if this had been brought up before and sorry for the hijack 

[Jeffy]

Knew its an AMC, thought the MPFI was developed after Chrysler acquired AMC so there might be some interchangeability when it came to the ECU and its associated sensors. sorry if this had been brought up before and sorry for the hijack 

AMC/Jeep had developed most of the Jeep line-up well into the early 90's.  The 4.0L was already MPFI from 1987-1990 (Although it was a Bendex system) and what they learned there went into the 2.5L/4.0L High-Output MPFI.  Jeeps have always had their own development/mfg. separate from Chrysler.  This is why in 2006 the AMC 2.5L was finally ditched for the 2.4L World Engine used in all of the other Chrysler line-up.  It's also why in 2008, the AMC 4.0L was dropped and replaced with the 3.8L.  The only other vehicle to share a AMC engine was the Dodge Dakota in which they just renamed the AMC a Magnum.  It was all Jeep.

It's a bit difficult to design a engine management system when the engines are so different.  They are just not compatible in any shape or form which is why no one has done it.  If you're adamant about it, go ahead though.  I'm sure we'd all love to see it happen.

Displacement    153 cid vs. 150.4 cid
Bore x Stroke    3.44" x 4.09" vs. 3.88” x 3.19”
Valve System    SOHC vs OHV
Construction    Cast iron block, Aluminum alloy head vs Cast Iron block, Cast Iron Head
Compression Ratio    8.9:1 vs 9.2:1

[smashcoast]

So a 97 2.5 is made by who?

[Jeffy]

So a 97 2.5 is made by who?

AMC

[smashcoast]

What's the stock HP on the 97 2.5?

[Jeffy]

What's the stock HP on the 97 2.5?

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