Has any FRS/BRZ fallen to LS V8 engine swap?

[SLICVIC]

[ame="http://www.youtube.com/watch?v=oLP-HCcX9as"]The 450 HP Crawford Performance Turbo BRZ - TUNED - YouTube[/ame]

high faith in these fa20s, but a LS swap is pretty cool

[PowderfaceTr.]

DOHC on the left, LS1 on the right. Which one is really bigger?
The 4.0 is out of a Lexus, the LS1 is in 29 different GM vehicles worldwide.
Both engines were part of the " top 10 best engines " in 1998&1999

[Siberian Husky]

Originally Posted by jamesm

With FA20s making more power on boost than is really useable on the street, what's the point? Beyond impressing people in the parking lot, you're pretty much left with a car that handles worse, sounds (and revs) like a pickup truck and gauged that don't work.

Maybe I just don't get it, but there's just no real good reason to swap out a perfectly good, modern, fairly amazing engine (FA20) for a 50 year old truck engine. Yes yes I know, it's the aluminum corvette version, but have you ever driven a corvette? They're awful cars, in large part due lazy-feeling pushrod dinosaur under the hood . That's just now what these cars are all about...

I'm not sure if you're trolling, or if you truly are that much of a weeaboo fanboy.

The Corvette has been and will always be one of the best performance bang for your buck. The pushrod technology may be old in design, but it is a tried and true method for delivering high displacement power in a relatively small unit. LSX series are no slouch engines, and if you've ever truly driven an LSX car you'd know that. I will also go out on a limb and guess that the LSX power train weighs in very closely to our beloved fa20's.

Shitty posts like this make me really hate this forum. I love my FRS, but there is so much pseudo-tuning science and japanese **** riding here.

[jamesm]

Originally Posted by Siberian Husky

I'm not sure if you're trolling, or if you truly are that much of a weeaboo fanboy.

The Corvette has been and will always be one of the best performance bang for your buck. The pushrod technology may be old in design, but it is a tried and true method for delivering high displacement power in a relatively small unit. LSX series are no slouch engines, and if you've ever truly driven an LSX car you'd know that. I will also go out on a limb and guess that the LSX power train weighs in very closely to our beloved fa20's.

Shitty posts like this make me really hate this forum. I love my FRS, but there is so much pseudo-tuning science and japanese **** riding here.

Lol ok. I bought a corvette (c5) a few years back with the intention of building a kit car out of it (never did actually build it) and it was a piece of crap. Basically a $45k cavalier with an aluminum truck engine. They rev slow, feel lethargic and are a 'great performance bargain' because they're cheap. Not inexpensive, but cheap. The switchgear is the same as in every other mid-90s GM econobox. It's a parts bin car.

My turbo fr-s on 6psi barely tuned is more entertaining than the corvette with it's 350ci of inefficient suck. 350ci to lay down a whopping 290whp. Yeah, pushrods are awesome, go team a'murika. No wonder Ferrari, Lamborghini, f1 teams all still use pushrods... Oh wait, they don't.

Let me guess, the mustang has a solid rear axle because its awesome too, right?

[Shoebox]

Originally Posted by jamesm

Lol ok. I bought a corvette (c5) a few years back with the intention of building a kit car out of it (never did actually build it) and it was a piece of crap. Basically a $45k cavalier with an aluminum truck engine. They rev slow, feel lethargic and are a 'great performance bargain' because they're cheap. Not inexpensive, but cheap. The switchgear is the same as in every other mid-90s GM econobox. It's a parts bin car.

My turbo fr-s on 6psi barely tuned is more entertaining than the corvette with it's 350ci of inefficient suck. 350ci to lay down a whopping 290whp. Yeah, pushrods are awesome, go team a'murika. No wonder Ferrari, Lamborghini, f1 teams all still use pushrods... Oh wait, they don't.

Let me guess, the mustang has a solid rear axle because its awesome too, right?

Lol I can't tell if your taking trolling to another level either. If you were half educated about any ls motor, you would know that it isn't a 350ci lol. That actually is an old truck motor. If you had one of those in there then you got raped with no lube when you got your c5

[Nezz]

Originally Posted by PowderfaceTr.

DOHC on the left, LS1 on the right. Which one is really bigger?
The 4.0 is out of a Lexus, the LS1 is in 29 different GM vehicles worldwide.
Both engines were part of the " top 10 best engines " in 1998&1999

Everyone shows this or similar. The DOHC in this shot is fully dressed, the LS has no accessories. Unfair.

300lb over stock isn't bad for a racecar level of power/weight, though. You could always vee/rear mount the radiator, too, as well as adding a fuel cell and rear-battery conversion, for better weight distribution.

It won't ever be the same animal (you're losing the CoG, angular moment will be higher too) but I can see a lot worse things to do.

Like a 1UZ, which has all its valvetrain weight up high, sorry to say. The FA20 wins because its valvetrain weight is lower than even Corvette's. But the LS motors excel at keeping their weight both down and down low, for a vee configuration engine, with half the valvetrain weight underneath.

EDIT; Worth noting that engine was out of the following;
LandCruiser, Lexus "Safari" (whatever the lexus landies were called in your market) Lexus SC400, Lexus LS400, Celsior (not quite an LS400), Soarer (Jap market SC400), and I'm pretty sure one or two others-- they're quite common.

[userjack6880]

Guys, I want to buy a second FR-S/BRZ/86 just to do silly stuff to it now. I got the FR-S for the boxer and the fun, balanced drive, but the appeal of a stupidly powerful variant... oh my.

[dem00n]

Originally Posted by userjack6880

Guys, I want to buy a second FR-S/BRZ/86 just to do silly stuff to it now. I got the FR-S for the boxer and the fun, balanced drive, but the appeal of a stupidly powerful variant... oh my.

The sad part is that we don't know the limit of the chassis.

I mean this as in no info is really shared, we know there are a few cars running 2JZ's that are running a bunch of horsepower, but these are basically drift cars/drag ponies.

But what about those building track monsters? Some even argue that more then 300HP will ruin the car. Perhaps the balance of a heavy LS engine tips it off too much?

That's what i'm waiting for, proof of what the limits of this car are. That will really prove how extensively engineering and well made the chassis is.

[Shoebox]

Originally Posted by dem00n

The sad part is that we don't know the limit of the chassis.

I mean this as in no info is really shared, we know there are a few cars running 2JZ's that are running a bunch of horsepower, but these are basically drift cars/drag ponies.

But what about those building track monsters? Some even argue that more then 300HP will ruin the car. Perhaps the balance of a heavy LS engine tips it off too much?

That's what i'm waiting for, proof of what the limits of this car are. That will really prove how extensively engineering and well made the chassis is.

The ls motor is actually surprisingly lite. I know that in my s14, the ls1 actually weighed marginally less than the stock ka24 that came out. That motor is out right now because I wanted moar powaa!!! And my pockets hate me for it -_-... Doing a 383 now. But I am thinking about doing just a simple ls1 with a cam and minor mods for the brz. Could make an easy 420-450whp and not be pushing the motor anywhere near its limits. I think the car should be able to handle that power on the track. It's n/a power so it's very predictable and controllable. My 240 was always easy to control. The brz has 18 years of engineering and tech on my 240. I can't see why it wouldn't be able to be fine with the power. I agree though, I want to see it proven.


Edit: also wanted to add that the 2jz is A LOT heavier than an ls

[Nezz]

Originally Posted by Shoebox

The ls motor is actually surprisingly lite. I know that in my s14, the ls1 actually weighed marginally less than the stock ka24 that came out. That motor is out right now because I wanted moar powaa!!! And my pockets hate me for it -_-... Doing a 383 now. But I am thinking about doing just a simple ls1 with a cam and minor mods for the brz. Could make an easy 420-450whp and not be pushing the motor anywhere near its limits. I think the car should be able to handle that power on the track. It's n/a power so it's very predictable and controllable. My 240 was always easy to control. The brz has 18 years of engineering and tech on my 240. I can't see why it wouldn't be able to be fine with the power. I agree though, I want to see it proven.


Edit: also wanted to add that the 2jz is A LOT heavier than an ls

2JZs are definitely heavier, but you'll definitely mung the balance with an LS to a degree as the FA20 is a very, very light motor. I'm looking forward to the FA22/FA24 that comes out when they update (it'll likely be more displacement as that's both cheap and light) to see what happens I must admit.

[jamesm]

Originally Posted by Shoebox

Lol I can't tell if your taking trolling to another level either. If you were half educated about any ls motor, you would know that it isn't a 350ci lol. That actually is an old truck motor. If you had one of those in there then you got raped with no lube when you got your c5

It had an ls1. The original, 350hp version.

[Shoebox]

Originally Posted by jamesm

It had an ls1. The original, 350hp version.

Ls1 is a 346ci. Completely different motor than the 350ci. Nothing is interchangeable. I'll give you that, I don't like base c5's. I would only get a c5z06. They are not too expensive these days. Mid 20's. the ls6 is pretty close to the ls1 though. Just different heads, cam, and intake manifold/tb are the major differences. Same bottom end

[Shoebox]

Originally Posted by Nezz

2JZs are definitely heavier, but you'll definitely mung the balance with an LS to a degree as the FA20 is a very, very light motor. I'm looking forward to the FA22/FA24 that comes out when they update (it'll likely be more displacement as that's both cheap and light) to see what happens I must admit.

Ls1 longblock with all accessories weighs in at right around 450lbs. I read somewhere that all in all the ls swap is 80lbs more when it's all said and done. I've been looking at this stuff all week. I think it's a better alternative than going FI on the stock motor. After selling the stock motor and trans, the cost is not too much more and there are way more substantial power gains. Might do this around tax time next year. Just need to get my 240 driving again so that I have a car while my brz is down haha

[fa5tco]

weapons grade performance did the swap into a BRZ and the weight difference between the fa20 and the ls motor they used was 60 lbs. Thats not going to disrupt your precious balance some of you keep whining about.