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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.

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Old 07-01-2012, 06:06 PM   #1
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Has any FRS/BRZ fallen to LS V8 engine swap?

The similarly classed cars that came before the FRS/BRZ such as Miata, 180sx, 240sx, and RX-7 (non-turbo) were fitted with LSx engine by those who don't want to go JDM route of boosting with complicated parts and convoluted set-up associated with it. The results of cars swapped with LS were extremely favorable... with obvious increase in hp/tq and almost negligible change in weight and weight distribution.

Will the BRZ/FRS also follow the same fate a couple of years from now?
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Old 07-01-2012, 06:25 PM   #2
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Yes. I don't imagine there are many cars out there that haven't had an LSx thrown into them.
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Old 07-01-2012, 06:28 PM   #3
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Heard someone is already working on it..... sadly.
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Old 07-01-2012, 06:42 PM   #4
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When I was in college there was a kid with a Porsche 944 with a LS1 in it. Blasphemy if you ask me.
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Old 07-01-2012, 06:54 PM   #5
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When I was in college there was a kid with a Porsche 944 with a LS1 in it. Blasphemy if you ask me.
Why? I bet the LS1 is lighter than the 944 engine.

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Old 07-01-2012, 07:02 PM   #6
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Heard someone is already working on it..... sadly.
Doubling the output while not disturbing the weight distribution is simply too good to pass. With LS's favorable packaging, I bet it can also be mounted low too.
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Old 07-01-2012, 07:57 PM   #7
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Why? I bet the LS1 is lighter than the 944 engine.

-J
It's the whole fact it's a Chevy motor in a Porsche. I guess if the Porsche motor is dead, maybe it would be cheaper to put in a LS1, still, I would never do it.
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Old 07-01-2012, 07:57 PM   #8
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I wouldn't mind it. The LS is a pretty compact V8.
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Old 07-01-2012, 08:02 PM   #9
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Still in the honeymoon phase. It will happen. Just too early now. :happy0180: Also keen to seeing swaps using a toyota/Lexus V8.
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Old 07-01-2012, 08:04 PM   #10
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It's the whole fact it's a Chevy motor in a Porsche. I guess if the Porsche motor is dead, maybe it would be cheaper to put in a LS1, still, I would never do it.
You've got a Subaru motor in a Scion/Toyota.

Saturn put a Honda V6 in their Vue crossover.

Lotus shoves Toyota engines into their sports cars.

Nissan is set to share engines with Mercedes.


Even manufacturers do it too.
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Old 07-01-2012, 08:24 PM   #11
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You've got a Subaru motor in a Scion/Toyota.

Saturn put a Honda V6 in their Vue crossover.

Lotus shoves Toyota engines into their sports cars.

Nissan is set to share engines with Mercedes.


Even manufacturers do it too.
Yes, Auto Makers do share to make there cars better, why reinvent the wheel when another company has what you want. But to put a motor in a car that is from another manufacturer is Sacrilegious.

GM used Honda V6's and Toyota I-4 cause GM sucks in those areas.
Lotus doesn't make motors so they outsource.

Nothing wrong with collaboration, because it's a win-win just like Mitsubishi, Dodge, Hyundai. You get the 4B11
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Old 07-01-2012, 08:48 PM   #12
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It's the whole fact it's a Chevy motor in a Porsche. I guess if the Porsche motor is dead, maybe it would be cheaper to put in a LS1, still, I would never do it.
I'd rather call that a General Motor (GM), but if you insist calling it 'chevy'.....

That LS engine architecture has Le-Mans Proven reliability & durability... and victories behind it. It's a 'general motor' that can be fit in almost any FR cars even as small as Miata from 20 yrs ago without disturbing weight distribution.

GM's LS engine is almost inescapable & unavoidable option to any longitudinal engine-mounted rear drive cars our there... any brand and any model year since 1960.
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Old 07-01-2012, 08:52 PM   #13
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I'd rather call that a General Motor (GM), but if you insist calling it 'chevy'.....
Fine, putting that GM motor in a Porsche is blasphemy. Does that make you feel better?
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Old 07-01-2012, 08:57 PM   #14
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Fine, putting that GM motor in a Porsche is blasphemy. Does that make you feel better?
I'd have to 100% agree.
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Old 07-01-2012, 09:14 PM   #15
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Fine, putting that GM motor in a Porsche is blasphemy. Does that make you feel better?
We may call it "sacrilegious" & "blasphemy" to the guy you saw did to his 944 but...

Porsche has not made front longitudinal engine-mounted rear drive car for decades now, and I bet Porsche 944's chassis usually outlasts the life of the engine...

... so that makes LS swap the only logical choice.



The scenario above is ideally the ethical way to do the engine swap, especially if the chassis has outlasted the engine and the manufacturer no longer offers parts & support for the engine.
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Old 07-01-2012, 09:21 PM   #16
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Fine, putting that GM motor in a Porsche is blasphemy. Does that make you feel better?
You'll really hate this then.

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Old 07-01-2012, 09:25 PM   #17
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We may call it "sacrilegious" & "blasphemy" but.....

Porsche has not made front longitudinal engine-mounted rear drive car for decades now, and Porsche's chassis usually outlasts the life of the engine...

... so that makes LS swap the only logical choice.



The scenario above is ideally the ethical way to do the engine swap, especially if the chassis has outlasted the engine and the manufacturer no longer offers parts & support for the engine.
Porsche makes 4.8 V8 and has made it for quite sometime and is in the Cayenne and the Panamera.

The only reason to go outside of the Porsche line of motors it because they are much much more $$$$. When you can get a LSX motor for a couple of Thousand and want to do it on the cheap.
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Old 07-01-2012, 09:32 PM   #18
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Old 07-02-2012, 12:04 AM   #19
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God forbid the motor blows and I'm at fault, you better believe I'm going to try to cram an LSx in there.
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Old 07-02-2012, 12:10 AM   #20
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If I own my car long enough to the point where the warranty is long expired and I no longer care about resale, this is something I wouldn't hesitate to do. Although it would not be a cheap nor easy exercise, you'd have a damn serious car. I think dry sumping would be your only option given the low hood line of this car.
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Old 07-02-2012, 09:42 AM   #21
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When I was in college there was a kid with a Porsche 944 with a LS1 in it. Blasphemy if you ask me.
I can see where your coming from with this. I personally had a 944 N/A as a daily for some time. They are prone to T-Belt snapping and the power from the 2.5 is not overly impressive. The car was a blast to drive and I can just imagine what doubling the power would do.

If it were mine, I would probably do it. If the car was a 951, that would be a different story.

Have a good day
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Old 07-02-2012, 09:58 AM   #22
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I think dry sumping would be your only option given the low hood line of this car.
FR-S hoodline is a lot higher than an S2000 or FD RX-7, wet-sump oil pan LS engines have gone into those without major difficulties...

LSX FR-S/BRZ would be kick-ass, but the weight distribution isn't conducive to putting big power down. LS swapped into a 240Z, RX-7, or S2000 will still result in ~50/50 weight distribution (my FD measured exactly 50.0/50.0 with driver and 1/2 tank). FR-S is 55/45 stock, even if that is maintained it's a lot less weight on the drive wheels => less forward thrust available in the lower gears.

But it would still be a ton of fun
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