04-08-2017, 09:26 AM | #1 |
Senior Member
Join Date: Mar 2015
Drives: 2015 FRS - FFR GTM
Location: Key Largo, FL
Posts: 785
Thanks: 240
Thanked 817 Times in 378 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
|
GM LFX 3.6L V6 Motor Swap
Update: Yes,, moving forward with a 2012-2015 Camaro LFX V6 swap.
I curious is anyone’s taken a look the GM Aluminum v6 LFX or derivative as a swap candidate?? HP is 325-335 TQ curve is nice and flat around 220 ish. Motor light (number I’ve seen is 345 but don’t know if it’s dressed at that weight), twin overhead cam with exhaust manifolds integrated into head. This last item is actually pretty slick. Normal exhaust would just be a down tube then out the back. If I’m not mistaken on the LF3 and LF4 (both 425+ HP) version they bolt the turbos directly to the head. Low mile LFX motors (Less than 10K) look to be around $2K and a 6 speed less than $1K. These are 2012-2015 Camaro setups. It’s drive by wire so the gas pedal is necessary as well. Might be cheaper to buy a whole wrecked car though and there are lots of them around. Oil pan might be an issue. The Camaro one is more of a rear sump but they are other that are more of a front sump,,, but might still need to be modified. I’ve spent a bit of time looking at the GTO pan straddling the cross member and rack in some of the pictures. As the V6 pan is shorter the trans would need to move forward a bit but it might fit. A custom pan is always an option but the cost would be a killer. Some of the Miata guys are putting these into their track cars and seem to like the results. I figured if it fits in a Miata should fit in a FRS. Line up of Motors,, the late model 3.6l LFX are in lots of GM cars https://en.wikipedia.org/wiki/GM_High_Feature_engine Last edited by gtpvette; 11-08-2018 at 02:32 PM. |
04-08-2017, 09:31 AM | #2 |
Senior Member
Join Date: Mar 2015
Drives: 2015 FRS - FFR GTM
Location: Key Largo, FL
Posts: 785
Thanks: 240
Thanked 817 Times in 378 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
|
in a Miata
__________________
2015 FR-S - One Day I'll Finish The Swap |
The Following User Says Thank You to gtpvette For This Useful Post: | CxG (05-22-2017) |
04-08-2017, 10:03 AM | #3 |
Senior Member
Join Date: Jun 2016
Drives: 2001 Impreza 2.5 RS
Location: Dayton, Ohio, USA
Posts: 139
Thanks: 14
Thanked 293 Times in 98 Posts
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
|
A lot of people consider this option but it always boils down to the only cost savings is on the engine and transmission. If you are going to go far enough to swap a whole drivetrain, at least do a V8
__________________
Colin Beck
|
The Following User Says Thank You to MRS-Colin For This Useful Post: | hmong337 (03-21-2019) |
04-08-2017, 10:34 AM | #4 | |
Senior Member
Join Date: Mar 2015
Drives: 2015 FRS - FFR GTM
Location: Key Largo, FL
Posts: 785
Thanks: 240
Thanked 817 Times in 378 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
|
Quote:
Certainly a valid point. I'll guess maybe a $5K difference for a similar mile motor and trans (your mileage may vary) but that should be about right. At the right price point installed I like the thought of this motor though. For a DD 325hp sounds like a like a lot of fun.
__________________
2015 FR-S - One Day I'll Finish The Swap |
|
04-08-2017, 11:12 AM | #5 | |
Member
Join Date: May 2016
Drives: 2015 Firestorm FR-S
Location: Modesto, California
Posts: 52
Thanks: 26
Thanked 18 Times in 14 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
|
Quote:
And if it was a DD maybe mpg would be something to consider? Not sure how much a real world difference would be in a light car but still, 5 mpg in a daily could be beneficial! Sent from my iPhone using Tapatalk
__________________
Not trying to make it perfect; I'm just trying to make it.
2015 Scion FR-S 6MT 2016 Subaru Crosstrek CVT 1972 Chevy C10 Shortbed 2018 Honda Civic Si Sedan |
|
04-08-2017, 04:43 PM | #6 |
Only users lose drugs.
Join Date: Nov 2014
Drives: All the time
Location: Shrewsbury upon Worcestershire
Posts: 1,818
Thanks: 874
Thanked 1,067 Times in 674 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
|
Another nice 60deg V6. Perfect match for this chassis.
|
The Following User Says Thank You to venturaII For This Useful Post: | D_Thissen (04-10-2017) |
04-08-2017, 04:48 PM | #7 |
Senior Member
Join Date: Jun 2014
Drives: frs
Location: Gunsai
Posts: 4,874
Thanks: 7,128
Thanked 2,919 Times in 1,767 Posts
Mentioned: 23 Post(s)
Tagged: 2 Thread(s)
|
As long "bolt on" in the chasis with little to no modification im sold.
|
04-08-2017, 05:36 PM | #8 | |
[insert cool phrase here]
Join Date: Aug 2015
Drives: BRZ Premium
Location: Central Coast CA
Posts: 2,369
Thanks: 709
Thanked 1,558 Times in 930 Posts
Mentioned: 30 Post(s)
Tagged: 0 Thread(s)
|
Quote:
The though did come to me, but only if it was like a bolt on and the price was way cheaper than V8 or a tad ballpark for a FI kit.
__________________
New daily driver - Subaru BRZ Premium
Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged |
|
04-09-2017, 08:20 PM | #9 |
Senior Member
Join Date: Mar 2015
Drives: 2015 FRS - FFR GTM
Location: Key Largo, FL
Posts: 785
Thanks: 240
Thanked 817 Times in 378 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
|
After looking at more oil pans then I care to mention,, I came across this. It's from a Holden but a bit older V6 than the LFX. Bolt patten looks the same though. If it works,,, it's the GTO pan for this V6 (front sump).
__________________
2015 FR-S - One Day I'll Finish The Swap |
The Following User Says Thank You to gtpvette For This Useful Post: | venturaII (04-10-2017) |
04-09-2017, 08:40 PM | #10 |
Senior Member
Join Date: Mar 2015
Drives: 2015 FRS - FFR GTM
Location: Key Largo, FL
Posts: 785
Thanks: 240
Thanked 817 Times in 378 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
|
I'll add these as well. They show the stock motor mounts. The question is,,, would they line up right above the cross member. Note the center picture shows the Camaro rear sump pan,,,, which wouldn't work. The mounts seem to be right about the middle cylinder.
__________________
2015 FR-S - One Day I'll Finish The Swap |
04-09-2017, 08:49 PM | #11 |
Senior Member
Join Date: Mar 2015
Drives: 2015 FRS - FFR GTM
Location: Key Largo, FL
Posts: 785
Thanks: 240
Thanked 817 Times in 378 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
|
As I'm thinking about it ,, at 325HP are the axles and rear end OK??? Could the cooling system handle 325HP with AC and the heat of South Florida??? Also,,, would a new driveshaft be necessary??? Could you take the Camaro drive shaft and put a FRS rear end adapter on it or visa a versa??
__________________
2015 FR-S - One Day I'll Finish The Swap |
04-09-2017, 11:37 PM | #12 |
Senior Member
Join Date: Mar 2016
Drives: Stock
Location: Arkansas
Posts: 206
Thanks: 52
Thanked 48 Times in 33 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
|
To save weight the transmission is almost identical to ours. I even wonder if a cheap adapter would save on this swap and the motor weighs almost 30lbs lighter then the fa20 at least this is what I have came up with! Yes I have been considering this for a long time and if I can swing it it's on my list!!! Lighter engine and 100 more hp! Been on the Camaro forums and I believe they have got the motor close to 300whp. Plus nice flat torque band.
|
04-10-2017, 04:07 AM | #13 |
[insert cool phrase here]
Join Date: Aug 2015
Drives: BRZ Premium
Location: Central Coast CA
Posts: 2,369
Thanks: 709
Thanked 1,558 Times in 930 Posts
Mentioned: 30 Post(s)
Tagged: 0 Thread(s)
|
In reality anything is possible with the time and money.
__________________
New daily driver - Subaru BRZ Premium
Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged |
04-10-2017, 07:30 AM | #14 |
Senior Member
Join Date: Mar 2015
Drives: 2015 FRS - FFR GTM
Location: Key Largo, FL
Posts: 785
Thanks: 240
Thanked 817 Times in 378 Posts
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
|
Too bad searching on LFX reveals nothing. Found this searching on 'Crossmember'
http://www.ft86club.com/forums/showt...smember&page=6 Mods close this thread pls. Thanks!!
__________________
2015 FR-S - One Day I'll Finish The Swap |
|
|
Thread Tools | Search this Thread |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Should I have just got a new motor? | SoundsOfTheUniverse | Issues | Warranty | Recalls / TSB | 12 | 07-31-2017 07:51 PM |
Seized motor!! What STX mods should I do while I have the motor out?? | BlaineWasHere | Tracking / Autocross / HPDE / Drifting | 27 | 12-11-2014 02:39 PM |
K2 Motor? | Ronin Sascha | Engine, Exhaust, Transmission | 8 | 08-16-2014 06:51 PM |
Does every motor say #1 | sosick | Engine, Exhaust, Transmission | 21 | 05-05-2014 09:28 AM |
MOTOR UNION | David | Southern California | 0 | 06-22-2013 01:32 PM |