ECOTEC 2.0 LTG SWAP

Automotive powered airboat discussion.
br,lc,LA
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Re: ECOTEC 2.0 LTG SWAP

Postby br,lc,LA » Sun Jul 28, 2019 8:53 pm

Just make sure the external pump can feed 50-60psi and it will work fine. Youll have to plumb the FP sensor into your system downstream of the regulator as the engine requires a fuel pressure input upstream of the HP pump. Make sure the regulator is located as close to the HP pump as possible so you don't have a significant amount of deadheaded fuel upstream of the HP pump.
12x7'6" American Airboat
1.4L GM Ecotec - Stock Turbo
2:1 Century Ecotec Drive
80" 2-bld WW Stump Puller
"Nothin' as Fine as Hearing a Turbo Whine"

FISHSTICKER
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Re: ECOTEC 2.0 LTG SWAP

Postby FISHSTICKER » Mon Jul 29, 2019 9:02 am

Forgot about the fuel pressure sensor. I’ll have to see what that requires for compatibility.

br,lc,LA
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Re: ECOTEC 2.0 LTG SWAP

Postby br,lc,LA » Mon Jul 29, 2019 10:24 am

Easily done with a tee, -6AN lines will be large enough for stock HP up to slightly molded. The LP FP sensor is a female thread. Part # 13579380
12x7'6" American Airboat
1.4L GM Ecotec - Stock Turbo
2:1 Century Ecotec Drive
80" 2-bld WW Stump Puller
"Nothin' as Fine as Hearing a Turbo Whine"

FISHSTICKER
Southern Airboat Member
Posts: 110
Joined: Wed Aug 31, 2016 11:22 am
Location: French Settlement Louisiana

Re: ECOTEC 2.0 LTG SWAP

Postby FISHSTICKER » Mon Jul 29, 2019 1:16 pm

I don’t remember a wire for the fuel pressure sensor in the harness. I wonder if Swaptime tuned that out? I would think the computer will be looking for that signal.

Thanks for the part number.

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OneBFC
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Re: ECOTEC 2.0 LTG SWAP

Postby OneBFC » Mon Jul 29, 2019 5:17 pm

Don't think the PCM actually cares about low pressure side. It's basically a lift pump for the high pressure pump on these engines.

Here's a few pics with a cracker in the back seat. :cheers:

20190629_153312.jpg


20190705_163612-EFFECTS.jpg
-Russ
-----------------------------------
The only thing stopping you is FEAR
400+hp Ecotec, 12x7.6 DBDO, 80" 3B Maximus, 2.3 OX,85+mph, water = purely optional
Life begins at 2 BAR, Just a good ole boy

br,lc,LA
Southern Airboat Member
Posts: 680
Joined: Wed Feb 16, 2005 10:29 pm
Location: Louisiana

Re: ECOTEC 2.0 LTG SWAP

Postby br,lc,LA » Mon Jul 29, 2019 6:36 pm

OneBFC wrote:Don't think the PCM actually cares about low pressure side. It's basically a lift pump for the high pressure pump on these engines.

Here's a few pics with a cracker in the back seat. :cheers:

20190629_153312.jpg

20190705_163612-EFFECTS.jpg



Russ,

Depends on the tune. Ill have to look back at the LTG vs LHU wiring. I know the LTG LP Fuel Pressure Signal is fed directly to the ECM vs in previous years the LP signal only fed the FPCM.
12x7'6" American Airboat
1.4L GM Ecotec - Stock Turbo
2:1 Century Ecotec Drive
80" 2-bld WW Stump Puller
"Nothin' as Fine as Hearing a Turbo Whine"

FISHSTICKER
Southern Airboat Member
Posts: 110
Joined: Wed Aug 31, 2016 11:22 am
Location: French Settlement Louisiana

Re: ECOTEC 2.0 LTG SWAP

Postby FISHSTICKER » Wed Jul 31, 2019 6:25 pm

Boat looks great Russ. Looks like there is a fuel pressure sensor intergral to the in-tank low pressure fuel pump. I still don't know if the PCM will require that signal as the LTG Crate Motor instructions suggest you can use other fuel pumps as long as they supply fuel at the necessary pressure and rate.

br,lc,LA
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Posts: 680
Joined: Wed Feb 16, 2005 10:29 pm
Location: Louisiana

Re: ECOTEC 2.0 LTG SWAP

Postby br,lc,LA » Wed Jul 31, 2019 7:04 pm

In-tank pressure sensor is for vapor recovery system which you wont have installed. If you read the LTG Crate Motor instructions the inline sensor is included in the harness kit.
12x7'6" American Airboat
1.4L GM Ecotec - Stock Turbo
2:1 Century Ecotec Drive
80" 2-bld WW Stump Puller
"Nothin' as Fine as Hearing a Turbo Whine"

FISHSTICKER
Southern Airboat Member
Posts: 110
Joined: Wed Aug 31, 2016 11:22 am
Location: French Settlement Louisiana

Re: ECOTEC 2.0 LTG SWAP

Postby FISHSTICKER » Thu Aug 01, 2019 7:50 am

Yea I saw that as I kept reading. GM actually has the pin out of the PCM plugs in those instructions. I have the location and wire color and know I am looking for a 3 wire connector for that sensor. I'll see if its in the harness. Hopefully its one of the plugs I assumed was for the transmmission.

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airduds
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Re: ECOTEC 2.0 LTG SWAP

Postby airduds » Fri Aug 02, 2019 3:26 am

Wife and I rented a Camaro convertible with a LTG awhile back and drove up the west coast from LA to Astoria. What a jewel of an engine.
Hard times create strong men. Strong men create good times. Good times create weak men. Weak men create hard times.


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