Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Cold Air Inductions
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Camaro V6 LLT Engine, Exhaust, and Bolt-Ons


Reply
 
Thread Tools
Old 04-25-2015, 10:03 AM   #1
alice
 
alice's Avatar
 
Drives: 2010 camaro limited edition turbo
Join Date: Mar 2014
Location: saint petersburg, florida
Posts: 75
LFX engine conversion into LLT

Anyone ever taken a LFX engine and installed it into a LLT? My understanding is that it can be done by installing the wiring harness from the LLT In place of the LFX, changing the Throttle body to LLT, adapting the exhaust. I understand everything else should work. Only issue is the high pressure fuel pump in the LFX will throw a code at idle and goes into limp mode unless the idle is raised to 1000 RPM.

Does anyone have any additional knowledge on a conversion such as this and how to overcome the issue discussed other than raising the RPM?
alice is offline   Reply With Quote
Old 04-25-2015, 02:10 PM   #2
crc91

 
crc91's Avatar
 
Drives: '14 1LS
Join Date: Apr 2014
Location: Mandeville
Posts: 1,832
Don't wanna be that guy but out of curiosity why do you want to swap to the LFX? I get it's a more updated/ powerful engine. It would probably be cheaper to just modify the existing LLT
__________________


Rotofab Cold Air Intake//Vitesse Motorsports Throttle Controller//MRT V1 Exhaust//Apex Catch Can//Z28 Rear Spoiler//OEM '14 SS Hood Vent Set Up//APR Carbon Splitter
https://www.facebook.com/DRIVENenthusiasts
crc91 is offline   Reply With Quote
Old 04-25-2015, 03:29 PM   #3
IBM camaro
Texas HT5
 
Drives: IBM
Join Date: Oct 2012
Location: Tx
Posts: 1,337
With full bolt ons and tune I easily would take my friend in his lightly modded LFX with no back seats, now with e85 it wouldn't be very close
IBM camaro is offline   Reply With Quote
Old 04-26-2015, 01:36 AM   #4
SV6GUY
Endlessly Wrenching
 
SV6GUY's Avatar
 
Drives: VE SV6 S2 manual
Join Date: Nov 2013
Location: Australia
Posts: 57
from a tuning perspective wouldn't it be ideal to have an LFX (E93 ECU)? if the engine needs replacing and it's relatively straightforward - why not i say.
SV6GUY is offline   Reply With Quote
Old 04-26-2015, 09:38 AM   #5
AITI
Account Suspended
 
Drives: 2015 LFX Auto
Join Date: Apr 2015
Location: US of A
Posts: 298
I think he is looking at getting rid of the Bosch ECU and going to the much easier to tune Delphi....but I may be mistaken. Not much different in the lower end, but pistons and heads are.
AITI is offline   Reply With Quote
Old 04-26-2015, 11:00 AM   #6
crc91

 
crc91's Avatar
 
Drives: '14 1LS
Join Date: Apr 2014
Location: Mandeville
Posts: 1,832
Well that's true, tuning would be much easier. As long as cost wouldn't be too bad I say why not. If it get too expensive I'd say your probably better off at getting a stands alone engine management system installed.
__________________


Rotofab Cold Air Intake//Vitesse Motorsports Throttle Controller//MRT V1 Exhaust//Apex Catch Can//Z28 Rear Spoiler//OEM '14 SS Hood Vent Set Up//APR Carbon Splitter
https://www.facebook.com/DRIVENenthusiasts
crc91 is offline   Reply With Quote
Old 04-27-2015, 08:33 AM   #7
alice
 
alice's Avatar
 
Drives: 2010 camaro limited edition turbo
Join Date: Mar 2014
Location: saint petersburg, florida
Posts: 75
I don't know anyone who makes a stand alone management system for doing something like this. Can anyone direct me?

As LLT's get older, my thinking is that it would be advantageous to install the LFX engine rather than the weaker LLT. There are many upgrades in the LFX. Only issue is that you cannot plug the Delphi system into the LLT body harness due to differences in the plugs. Of course, the LFX harness and ECU work together OK but it's the body harness that is the problem. If anyone can shed any light on this, chime in please!

So, you would use the Bosche harness and ECU in the LLT, as is, and simply plug it into the LFX engine. Only issue is the HPFP in the LFX will throw an overpressure code at idle and go into limp mode. Only way to overcome this is to raise the idle to 1000 RPM. Don't know if it can be tuned out. The exhaust adaption is easy. I have a twin turbo LLT and acquired a 2014 LFX complete engine and would love to do this but I need to understand a bit more about the feasibility of this conversion. Would love to use the Delphi ECU but the body plugs are the issue.

If anyone has any solutions and knowledge about this, please let me know. Lot's of LLT owners, sooner or later, will want to do this conversion, if for no other reasons than LFX engine availability and improvements in the engine itself.
alice is offline   Reply With Quote
Old 04-27-2015, 08:52 PM   #8
SV6GUY
Endlessly Wrenching
 
SV6GUY's Avatar
 
Drives: VE SV6 S2 manual
Join Date: Nov 2013
Location: Australia
Posts: 57
Quote:
Originally Posted by alice View Post
I don't know anyone who makes a stand alone management system for doing something like this. Can anyone direct me?

As LLT's get older, my thinking is that it would be advantageous to install the LFX engine rather than the weaker LLT. There are many upgrades in the LFX. Only issue is that you cannot plug the Delphi system into the LLT body harness due to differences in the plugs. Of course, the LFX harness and ECU work together OK but it's the body harness that is the problem. If anyone can shed any light on this, chime in please!

So, you would use the Bosche harness and ECU in the LLT, as is, and simply plug it into the LFX engine. Only issue is the HPFP in the LFX will throw an overpressure code at idle and go into limp mode. Only way to overcome this is to raise the idle to 1000 RPM. Don't know if it can be tuned out. The exhaust adaption is easy. I have a twin turbo LLT and acquired a 2014 LFX complete engine and would love to do this but I need to understand a bit more about the feasibility of this conversion. Would love to use the Delphi ECU but the body plugs are the issue.

If anyone has any solutions and knowledge about this, please let me know. Lot's of LLT owners, sooner or later, will want to do this conversion, if for no other reasons than LFX engine availability and improvements in the engine itself.
Haltech build stand alone systems; however, they are very expensive.

I've been told the same, the body harness is the problem.
SV6GUY is offline   Reply With Quote
Old 04-27-2015, 11:57 PM   #9
crc91

 
crc91's Avatar
 
Drives: '14 1LS
Join Date: Apr 2014
Location: Mandeville
Posts: 1,832
Stand alone systems are very expensive but honestly probably about the same price or less than switching to a lfx engine. Probably just easier to trade to an LFX
__________________


Rotofab Cold Air Intake//Vitesse Motorsports Throttle Controller//MRT V1 Exhaust//Apex Catch Can//Z28 Rear Spoiler//OEM '14 SS Hood Vent Set Up//APR Carbon Splitter
https://www.facebook.com/DRIVENenthusiasts
crc91 is offline   Reply With Quote
Old 04-28-2015, 09:09 AM   #10
alice
 
alice's Avatar
 
Drives: 2010 camaro limited edition turbo
Join Date: Mar 2014
Location: saint petersburg, florida
Posts: 75
There are a lot of LLTs out there. Since I have invested a ton of $ in my twin turbo LLT and I will be keeping it, I still want to pursue the conversion. Yes, a stand alone is expensive but if I transfer the LLT wiring harness to the LFX engine, the only remaining stumbling block is the idle issue with the LFX HPFP. If anyone has a suggestion on how to address this issue, please let me know. If this can be worked out, many more LLT owners who will eventually change engines, can upgrade to the LFX. Low mileage LFX engines are plentiful and very inexpensive and have all the upgraded goodies from the factory. A much better engine than the LLT. More power potential, as well. Chime in on this if someone can shed some additional light on the subject.
alice is offline   Reply With Quote
Old 11-07-2015, 06:07 PM   #11
alice
 
alice's Avatar
 
Drives: 2010 camaro limited edition turbo
Join Date: Mar 2014
Location: saint petersburg, florida
Posts: 75
LFX into LLT

This is the latest on installing a LFX engine into a LLT after months of research. We are 98% sure that this can be done. So sure, that I am in the process of preparing a new 2014 LFX engine with auto transmission for a transplant sometime early 2016. Lots of work still to be done but making progress. Attached are pics of the twin turbo Camaro LLT, along with the new LFX engine, still in preparation. Note that we took the oil filter casting and threw it and machined an adapter plate for a remote, chassis mounted oil filter. Also, added is the fuel filter GM forgot. A "must have" item for clean fuel for DI. We also have added many other features in preparation for the transplant. Once we have everything in place, we will schedule the swap and try it to see if it will work. Nervous, to say the least. The worst thing that can happen is that we will have to reinstall the LLT engine but all indications are it should and the only way we will ever know is to try it.
Pictures of the car in this post. Pictures of the new LFX engine in the next post.
Attached Images
          

Last edited by alice; 11-07-2015 at 06:21 PM. Reason: resize pics
alice is offline   Reply With Quote
Old 11-07-2015, 06:27 PM   #12
alice
 
alice's Avatar
 
Drives: 2010 camaro limited edition turbo
Join Date: Mar 2014
Location: saint petersburg, florida
Posts: 75
Pictures of the new 2014 LFX engine.
Attached Images
       
alice is offline   Reply With Quote
Old 11-07-2015, 07:22 PM   #13
IneedAZ

 
IneedAZ's Avatar
 
Drives: 2012 2LT RS
Join Date: Mar 2009
Location: Tampa
Posts: 2,237
Good Luck with the swap!
__________________
2012: Vmax TBody, CAI w/scoop, Solo HFC, ZL1 FP, Magnaflow TruX, Dynomax VT, Elite catch can, HP Tune, Throttle Contoller, BMR; Springs, Sways, Trailing Arms, Toe Ends, & Safety Loop, Koni str.t, Pioneer Z150bh, Phoenix Gold Sub, Hertz speakers & 5ch Amp, SS rear with 3.91 gears w/Eaton TrueTrac, and BMR bushings, Baer Decela Rotors, Goodridge brake lines, Brembo(GM) 4 piston calipers, Hawk Ceramic pads, and Michelin PSS tires, N.O. Nitrous, JacFab 3/4" intake spacer, and ported intake, Circle D 5c. 12.3@112
IneedAZ is offline   Reply With Quote
Old 11-07-2015, 11:15 PM   #14
RubyCamaro
Jan
 
RubyCamaro's Avatar
 
Drives: 2010 Camaro 1LT Red Jewel tintcoat
Join Date: May 2010
Location: Springfield, TN
Posts: 15,240
That is looking pretty bad azz! Good luck & keep us posted.
__________________
RubyCamaro is offline   Reply With Quote
Old 11-08-2015, 07:48 AM   #15
Sal329
 
Drives: 2008 Cadillac CTS
Join Date: Dec 2012
Location: Shelby, NC
Posts: 63
Can not wait to see it all done
__________________
Crystal Red 2008 Cadillac CTS 3.6 direct injection, Magnaflow X pipe, Borla Pro XS mufflers, LFX intake manifold, Airaid CAI, ported throttle body, W-1 oil catch can, LED daytime running lights and fog lights, FE2 suspension, 20" Camaro SS wheels
Sal329 is offline   Reply With Quote
Old 11-08-2015, 07:56 AM   #16
etmx183

 
etmx183's Avatar
 
Drives: 2012 Camaro 2LT RS, 04 Turbo Busa
Join Date: Mar 2012
Location: Baltimore, Maryland
Posts: 1,430
I love seeing "outside the box" thinking being done. Good Luck.
__________________
CAI intake, RX catch can, Nitrous Outlet Plate system, RX Ported Throttle body, APEX air scoop, SOLO HFCs, JacFab ported manifold and upper intake isolator, Solo cat back Mach X system, 3.91 gears, Weld RT-S, 1 piece DSS driveshaft Stall convertor by:CIRCLE D

TUNING BY:MagnumForce / HP Tuners
13.407@101.72 N/A 11/21/2015
HP Tuners /MATT@FSP
12.03@115.69 nitrous
etmx183 is offline   Reply With Quote
Old 11-08-2015, 10:36 AM   #17
JantzenOKC


 
JantzenOKC's Avatar
 
Drives: '13 2LT/RS Twin Turbo
Join Date: Aug 2012
Location: Edmond, Oklahoma
Posts: 2,438
Looks good!
__________________
3.6L Twin Turbo V6
Fabberge turbo kit w/ Garrett GT28's -- 3" downpipes -- Jacfab forged H-beam rods -- Diamond forged pistons(10.5:1) -- AEM boost controller -- Tial Q BOV -- CircleD 2E triple disc converter -- Tru-Cool 40k tranny cooler -- BMR suspension -- Pegasus aluminum rear cradle bushings -- Pfadt 1.25" springs -- ZL1 sway bars -- SS posi diff swap(3.27) w/ SS axles & hubs -- Brembo brakes -- full 2.5" exhaust with resonated X-pipe and Corsa mufflers -- Elite Engineering E2-X Ultra evac system
12.123 @ 119.88

******Under Construction******
JantzenOKC is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 12:04 PM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.