Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB

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-   -   FRS FA20 turbo vs FRS lsx/2jz (https://www.ft86club.com/forums/showthread.php?t=75562)

FRSBRZGT86FAN 10-09-2014 09:12 PM

Not to be off topic here, but I feel this car to be even more fun only needs 20-40 more hp. I'm surprised nobody has done an FA20F swap from the new wrx or jdm legacy gt or something...

Dipstik-sportech 10-09-2014 09:12 PM

Quote:

Originally Posted by Decay107 (Post 1978455)
Haven't really been following the drag threads, but where are the fast twins at now? I let someone with far more skill than myself do a few passes on my old $3500 bone stock 2006 CBR1000RR and the best run was a 10.13

11.11 isn't fast?

Dipstik-sportech 10-09-2014 09:14 PM

Quote:

Originally Posted by Pete156 (Post 1978618)
Couldn't agree more! Most of the ~300whp 86s on this forum will completely run away from the 500whp ones while they sit and spin. Totally unusable power in 99% of real world situations.

Wanna race?! We can put your theory to the test. :laughabove:

Pete156 10-09-2014 10:06 PM

Quote:

Originally Posted by Dipstik-sportech (Post 1978666)
Wanna race?! We can put your theory to the test. :laughabove:

Sure! Autocross?

sweetfrs 10-09-2014 10:15 PM

has anybody here even driven a frs or brz with over 240 whp? most of you will say no. till you do this you don't need to even think about 2jz or v8 swaps

Dipstik-sportech 10-09-2014 10:15 PM

Sure, I'll be sure to install my r comps. You do know the throttle isn't a light switch right? I don't have to use all 500whp from the moment I touch the throttle.

Pete156 10-09-2014 10:22 PM

Yes, I do. Have you run autocross with this setup (In the rain)?

Dipstik-sportech 10-09-2014 10:28 PM

Not in the rain but I have auto crossed it on my 560 tread wear nittos and guess what..... I beat all the stock FRS/brz's and placed 2nd in the street tire class. It's all in how you use the power and how good of a driver you are to be able to control it. Any other questions?

Pete156 10-09-2014 10:29 PM

I haven't lost to a stock 86 either, with street tires. That's not saying much. If you live in the PNW you pretty much have to run in the rain.

Dipstik-sportech 10-09-2014 10:33 PM

We lucked out and none of our events were rained out. Off boost my car makes no more than stock power so it stands to reason, on part throttle it will be as easy to drive as stock.

Reaper 10-09-2014 10:47 PM

This is why the lsx wins over the 2jz. More usable power. A lsx frs would probably be easier to drive than my 450+whp fa20.

Pete156 10-09-2014 10:47 PM

I imagine when you do come into boost on an autocross course it must take some extreme right foot control. Good on ya for getting out there and performing with that setup.

Dipstik-sportech 10-09-2014 10:49 PM

It's a crowd pleaser that's for sure on the street tires.

Reaper 10-09-2014 10:52 PM

It's all in the tune. Boost by gear, rampable boost and per gear traction control are all a click away in ecutek. But a large displacement na v8 will always be easier to drive then a fi 4 cylinder of the same hp. Trust me, my first tune made power too quick with my gtx28.

solus 10-10-2014 12:03 AM

Quote:

Originally Posted by AZFA20 (Post 1978634)
Sounds like neither of you know how to drive. Nor do you understand the use of traction control aids I guess

To say there is nothing left of the 86 is also not even remotely true. The only thing different is the engine and trans.

Oh well.......... steps out to shop to actually build cars.

Ha! The axles, differential, suspension, drive shaft, brakes, and all associated components will need work to support that much torque reliably to the ground. Essentially only the body of the twin will remain...

If you think these stock parts will hold up under that kind of stretch then you have a rude awakening coming

Poodles 10-10-2014 02:01 AM

Quote:

Originally Posted by solus (Post 1978175)
The first question you should ask... Why do you need 500 hp? Because without upgradig damn near the whole car then then the power is worthless other then to brag to the Internet that you have 500 hp. Also, after all that upgrading why not just buy a corvette?

If it's just for the challenge of hitting 500 hp yourself then have fun.



Why do you need a sports car when a Prius will do? Why do you need a car at all when a bike or your own 2 feet will do?


See how stupid that sounds?

Quote:

Originally Posted by PhoKingCool (Post 1978246)
Exactly! Keep in mind guys, 95% of the people that say they're going with a LSX, 2JZ, or whatever swap, end up dropping their projects because it goes over their heads. Kind of like those two guys working on their 1-2 year long "2JZ Project". @slicktop @Drift&Drag Is it really worth it to dump that much money and time into this chassis?? Not only that, but what about utilizing the power behind the build. Both engines are over built for what this car can handle. SMFH What a waste!! lol



Considering the size of the tires you can stuff under this chassis and how beefy the suspension really is, you're simply 100% wrong.

Quote:

Originally Posted by Jawnathin (Post 1978373)
LSx > 2JZ

Naturally aspirated high displacement engines FTW


Sure, if you like single digit gas mileage :)

Quote:

Originally Posted by Decay107 (Post 1978436)
Buy Literbike ===> go faster than ANY swapped/modded FR-S

and for pennies on the dollar too...


Depends on gearing and power levels. I've heard this line before and watched Supras absolutely destroy them...

Quote:

Originally Posted by Decay107 (Post 1978463)
:bow: I stand corrected.

Still, if you want to go fast it's hard to make a compelling argument against bikes. Unless, of course money is of absolutely no concern.



Depends, with how many trucks and SUVs with idiots behind the wheel around here, a bike is a death wish...

Quote:

Originally Posted by solus (Post 1978577)
Still not convinced that 500 hp is useable on this chassis... Most "500 hp" builds are over built and achieve nothing other that sounding cool when you read off the mods sheet. Props for having the technical fortitude to actually do the work though. Just seems as a useful as tits on a bull.

Also, basically you're swapping a Twins body onto a GM car, almost nothing except the look of the car will remain in order to put that kind of power down on a consistent basis.


You make it sound like you can't get decent sized rubber under this car, and that it's magically going to snap the chassis in two. It's been consistently proven the chassis is very overbuilt on this car.

Quote:

Originally Posted by Pete156 (Post 1978618)
Couldn't agree more! Most of the ~300whp 86s on this forum will completely run away from the 500whp ones while they sit and spin. Totally unusable power in 99% of real world situations.


Maybe on a car without any tuning that gives full boost in first gear. We've been able to get real traction control with different boost levels per gear for decades now...

Quote:

Originally Posted by FRSBRZGT86FAN (Post 1978661)
Not to be off topic here, but I feel this car to be even more fun only needs 20-40 more hp. I'm surprised nobody has done an FA20F swap from the new wrx or jdm legacy gt or something...


Won't fit, would make less power than adding FI to our FA20 because of the dual fuel system we have, etc...

Quote:

Originally Posted by solus (Post 1978816)
Ha! The axles, differential, suspension, drive shaft, brakes, and all associated components will need work to support that much torque reliably to the ground. Essentially only the body of the twin will remain...

If you think these stock parts will hold up under that kind of stretch then you have a rude awakening coming



- Axles I dunno of failures from power (lots of failures from being too low, just like the WRX/STI crowd). So what, get beefier ones.


- Differential is the same size as the old MKIII Supra IIRC, so it will take it just fine. Oil cooler will help on high speed runs though.


- Suspension is fine (unless of course you're putting in a much heavier engine, so then you need springs to match)


- Drive shaft is fine and if it needs to be stronger it's no big deal as everyone is swapping them anyway.


- Brakes, there are bolt on options for this and people with stock power are even going to BBK's so I fail to see your point.


THIS CAR WAS DESIGNED TO BE TUNED. They knew all of this stuff would happen and it's why the aftermarket support for this car is huge. Want to stay stock? Good for you, but you're in the minority...

OmarGC 10-10-2014 02:06 AM

Quote:

Originally Posted by solus (Post 1978816)
Ha! The axles, differential, suspension, drive shaft, brakes, and all associated components will need work to support that much torque reliably to the ground. Essentially only the body of the twin will remain...

If you think these stock parts will hold up under that kind of stretch then you have a rude awakening coming

You're a special type of stupid... You obviously know nothing about anyone currently doing or that has completed a swap. I'm sure 99.99% of people doing swaps are heavily modified already/in process of modifying the rest of their vehicle in other NEEDED areas. Also, you saying the differential needs to be upgraded tells me you're COMPLETELY ignorant to what will and won't work.

Suggestion: stick to your cheap turbo kit with a Taiwanese turbocharger and replica/knockoff wheels.

hmong337 10-10-2014 02:19 AM

I guess the staff at TOMS are just a bunch of morons for using a 2gr v6 to make 400hp when an FA20 w/ turbo can also do that...?

http://idlingblog.files.wordpress.co...1344.jpg?w=620

solus 10-10-2014 03:06 AM

Quote:

Originally Posted by OmarGC (Post 1978914)
You're a special type of stupid... You obviously know nothing about anyone currently doing or that has completed a swap. I'm sure 99.99% of people doing swaps are heavily modified already/in process of modifying the rest of their vehicle in other NEEDED areas. Also, you saying the differential needs to be upgraded tells me you're COMPLETELY ignorant to what will and won't work.

Suggestion: stick to your cheap turbo kit with a Taiwanese turbocharger and replica/knockoff wheels.

Somebody got butt hurt real quick, can't take negative feedback?. I'm actually going to enjoy driving my car vs having sit on blocks for years. In another never ending build for a goal that is pointless. Have fun with that...

You're right your car is amazing and you're the God of everything that is Frs...I am awed by your knowledge. I'm sorry, pfft gfys.

solus 10-10-2014 03:09 AM

Quote:

Originally Posted by Poodles (Post 1978909)
Why do you need a sports car when a Prius will do? Why do you need a car at all when a bike or your own 2 feet will do?


See how stupid that sounds?





Considering the size of the tires you can stuff under this chassis and how beefy the suspension really is, you're simply 100% wrong.




Sure, if you like single digit gas mileage :)




Depends on gearing and power levels. I've heard this line before and watched Supras absolutely destroy them...





Depends, with how many trucks and SUVs with idiots behind the wheel around here, a bike is a death wish...




You make it sound like you can't get decent sized rubber under this car, and that it's magically going to snap the chassis in two. It's been consistently proven the chassis is very overbuilt on this car.




Maybe on a car without any tuning that gives full boost in first gear. We've been able to get real traction control with different boost levels per gear for decades now...




Won't fit, would make less power than adding FI to our FA20 because of the dual fuel system we have, etc...





- Axles I dunno of failures from power (lots of failures from being too low, just like the WRX/STI crowd). So what, get beefier ones.


- Differential is the same size as the old MKIII Supra IIRC, so it will take it just fine. Oil cooler will help on high speed runs though.


- Suspension is fine (unless of course you're putting in a much heavier engine, so then you need springs to match)


- Drive shaft is fine and if it needs to be stronger it's no big deal as everyone is swapping them anyway.


- Brakes, there are bolt on options for this and people with stock power are even going to BBK's so I fail to see your point.


THIS CAR WAS DESIGNED TO BE TUNED. They knew all of this stuff would happen and it's why the aftermarket support for this car is huge. Want to stay stock? Good for you, but you're in the minority...

Not saying it can't be done (my comment was more concerning the torque of the LSX swap not necessarily boost). But at some point it will be over built for it capability. It all depends on the purpose of the car. Just because you want 500hp doesn't necessarily mean you NEED 500hp... Just depend what you want to do with it.

OmarGC 10-10-2014 05:00 AM

Quote:

Originally Posted by solus (Post 1978963)
Somebody got butt hurt real quick, can't take negative feedback?. I'm actually going to enjoy driving my car vs having sit on blocks for years. In another never ending build for a goal that is pointless. Have fun with that...

You're right your car is amazing and you're the God of everything that is Frs...I am awed by your knowledge. I'm sorry, pfft gfys.

Lol sitting on blocks for yrs? Lol you're so ignorant... Kudos to you. Also, I have other toy I can try to keep me occupied if I choose to. You're filled with so much, life must suck.

Also, my vehicles see competition level use ;)

FyeaFRS 10-10-2014 08:25 AM

booo engine swaps

Poodles 10-10-2014 12:24 PM

Quote:

Originally Posted by hmong337 (Post 1978930)
I guess the staff at TOMS are just a bunch of morons for using a 2gr v6 to make 400hp when an FA20 w/ turbo can also do that...?

http://idlingblog.files.wordpress.co...1344.jpg?w=620



Because it's what gets attention at car shows? Much like JDM companies swapping RB motors into Supras, it's to get attention and means nothing on the performance side.


It's a "look what I can do."

Quote:

Originally Posted by solus (Post 1978967)
Not saying it can't be done (my comment was more concerning the torque of the LSX swap not necessarily boost). But at some point it will be over built for it capability. It all depends on the purpose of the car. Just because you want 500hp doesn't necessarily mean you NEED 500hp... Just depend what you want to do with it.



The car is already over built and over building is a GOOD thing. Designing and engineering to withstand only what is expected is how you get catastrophic failures (I'm looking at you BMW)

Dipstik-sportech 10-10-2014 12:38 PM

Quote:

Originally Posted by hmong337 (Post 1978930)
I guess the staff at TOMS are just a bunch of morons for using a 2gr v6 to make 400hp when an FA20 w/ turbo can also do that...?

http://idlingblog.files.wordpress.co...1344.jpg?w=620

If I had the money I'd be swapping a Ferrari f12 v12 engine into my BRZ . It's all the wow factor for car shows, much like lambo doors, extravagant body kits, samurai decals and such.

AZFA20 10-10-2014 01:52 PM

Quote:

Originally Posted by solus (Post 1978816)
Ha! The axles, differential, suspension, drive shaft, brakes, and all associated components will need work to support that much torque reliably to the ground. Essentially only the body of the twin will remain...

If you think these stock parts will hold up under that kind of stretch then you have a rude awakening coming

Guess you missed the part where I am coming from a 430whp FA20 FR-S. It has already been through 2 totally different styles of forced induction. Funny that had I been talking about my FA20 at those power levels you would have had nothing to say even though I already am running a big brake system, carbon driveshaft, full coilover system, wide tires, blah blah blah. So I guess I was already driving nothing but a chassis slapped over nothing but aftermarket parts.

You keep trying to educate people on why swaps are pointless but in every argument you make it seem as though you are the one that needs to be educated. Your arguments stand to reason that you don't believe in any modifications to an OEM product and that's fine but why distribute baseless statements to those who may be interested in taking this on. Like others have said most people doing these types of mods are aware of what needs to be done and it's not their first rodeo.

We need to have a swap section so that those actually doing the swaps can help those considering it without pages upon pages of why you shouldn't do it. Although, this is exactly what this particular thread would bring to the surface haha

Reaper 10-10-2014 02:43 PM

I do swaps because I like the challenge, the fabrication, the problem solving, the creativity. Not because I want a corvette with a miata body on it. It seems what we call "car enthusiasts" are just people that like what the oem builds. I like what I build. Even if it's primared, welded together, noisy, rattly, and more expensive than something else. I built it with my own hands late at night with my wife in my driveway and it's fast and it's mean. And I like it. Everyone else can trade their car in. I'm growing mine and loving every stupid problem I have to solve.

solus 10-10-2014 05:34 PM

N
Quote:

Originally Posted by AZFA20 (Post 1979456)
Guess you missed the part where I am coming from a 430whp FA20 FR-S. It has already been through 2 totally different styles of forced induction. Funny that had I been talking about my FA20 at those power levels you would have had nothing to say even though I already am running a big brake system, carbon driveshaft, full coilover system, wide tires, blah blah blah. So I guess I was already driving nothing but a chassis slapped over nothing but aftermarket parts.

You keep trying to educate people on why swaps are pointless but in every argument you make it seem as though you are the one that needs to be educated. Your arguments stand to reason that you don't believe in any modifications to an OEM product and that's fine but why distribute baseless statements to those who may be interested in taking this on. Like others have said most people doing these types of mods are aware of what needs to be done and it's not their first rodeo.

We need to have a swap section so that those actually doing the swaps can help those considering it without pages upon pages of why you shouldn't do it. Although, this is exactly what this particular thread would bring to the surface haha

My original question was why he'd need 500 hp. I never said it was pointless I said that 500 hp swap in this car (and supporting mods) makes it essentially no longer a twin with exception of the look, which is fine. OP asked which one to do... I asked a followup question. No need to get hella defensive to justify spending so much on this car. It's your money spend it as you see fit.

People say they love the car and then proceed to change everything about a twin that makes it a twin, makes no sense to me, except for the challenge of doing the work or bragging at car shows.

As OmarGc so eloquently pointed out (with his comment about cheap Taiwanese turbo kit and cheap knock off wheels) I'm not stock either.

solus 10-10-2014 05:35 PM

Quote:

Originally Posted by Reaper (Post 1979529)
I do swaps because I like the challenge, the fabrication, the problem solving, the creativity. Not because I want a corvette with a miata body on it. It seems what we call "car enthusiasts" are just people that like what the oem builds. I like what I build. Even if it's primared, welded together, noisy, rattly, and more expensive than something else. I built it with my own hands late at night with my wife in my driveway and it's fast and it's mean. And I like it. Everyone else can trade their car in. I'm growing mine and loving every stupid problem I have to solve.

This I can support which is an answer to my original question even if not from the OP

OmarGC 10-10-2014 05:56 PM

I intended on buying this car when there were no specs for it released, i knew it would be my next major build as I left my GTR and v5 sti behind. It having a subaru engine was almost a deal breaker for me once that information was released, but I said i would give it an opportunity still because I loved the chassis. Gave it a chance, refreshed my mind with how shitty subaru engines are and got rid of it ASAP. My car hasn't been on the road for 2, almost 3 months under its own power... But my wiring harness arrives this weekend after 9 weeks, and I'll be on the road as soon as I can get to it(within 2 months or so) as long as no other out the country work trips pop up. Again, fuck subaru engines lol

Reaper 10-10-2014 06:31 PM

My requirements were be light. Rwd. A toyota. Everything else was up to me.

OmarGC 10-10-2014 06:54 PM

Quote:

Originally Posted by Reaper (Post 1979834)
My requirements were be light. Rwd. A toyota. Everything else was up to me.

This was big for me as well... I initially hoped it was have a 3s or similar engine when it was in the early concept stages. It's the major reason why I'm swapping... Because out the box these aren't Toyotas. Design yes, but when it comes down to it they're not.

It was between 2jz, choice of toyota v8, and a LS3. Being a bit of a purist LS swap was thrown out rather quickly... Missing my jzx chassis history one morning I decided 2j would be my only option.

Reaper 10-10-2014 06:57 PM

That's why I have a lexus v8 powered corolla.

w.k.s. 10-12-2014 02:56 AM

Quote:

Originally Posted by Reaper (Post 1979834)
My requirements were be light. Rwd. A toyota. Everything else was up to me.

But it's a subaru? Although I love almost every part that had a toyota hand in it.

Reaper 10-12-2014 03:37 AM

Toyota designed it. Subaru built it. Toyota gave them a rear end a transmission and an efi. Toyota actually built the prototype out of a hacked up legacy.

ZDan 10-12-2014 03:46 AM

Quote:

Originally Posted by Poodles (Post 1977473)
Perfect example is 2JZ vs LSx. 7 mains vs 5

:lol:

Vracer111 10-12-2014 04:26 AM

For a non-daily driver...LSx is the route I would want to go.

The main thing that irks me about my FRS is the Boxer motor... Subaru motors are very quirky and not even in the same league as Toyota motors.... have had experience with 2 other Subaru's (both EJ motors - 2.2 and 2.5, not my vehicles) and now this one, and yep it's Subaru 'quality' motor alright. My last time I will get a car with a Subaru motor in it... very looking forward to testing out the 'baby' FRS with a modified proven I4 Toyota motor which has been out for about a decade.

To me if you are going for 400+hp with FI on an FA20 , you might as well throw a grenade in the engine compartment and just get it over with... unless you are going to do it right and spend the $$$$$$ to do EVERYTHING REQUIRED to make it reliable enough (transmission cooling, shielding for the coil pack closest the exhaust to help extend the shortened life [only expecting 1 year of functioning is not acceptable], cooling system overhaul, getting the heat out of the sealed engine bay, oil cooling and baffling system, figure out the solution to the lowish oil pressure at high rpms.) And for that amount you might as well just go with a custom LSx build and keep it normally aspirated and much more reliable... see Vorshlag's ongoing Alpha project (this is a forum members car):

http://vorshlag.smugmug.com/Projects...8839&k=t45GCwQ

Mikem53 10-12-2014 09:00 AM

Your ignorance and toyota fanboy is showing..
Piston slap was an early LS1 issue on the C5 that was corrected with new rings. and it was just noise, not a reliablity issue..

Lol.. A straight 6 needs to have more mains.. The LSx actually have more support due to the shorter crank.. Nice try..

The fa20 does not have full variable valve timing.. There is no variable valve lift on this system.

The fa20 fuel system is a mixed bag of tech.. If you like cricket sounds and overly complex programming.. This system is for you..

The beauty of the LSx is that it makes lots of reliable power, in a compact proven lightweight package that is affordable! That's not the case with the toy straight 6





Quote:

Originally Posted by Poodles (Post 1977473)
Keep in mind even LS motors have weaknesses (piston slap for starters). HP/liter isn't a definitive measure of "stress" on an engine either. Engine layout plays in a hell of a lot.


Perfect example is 2JZ vs LSx. 7 mains vs 5, piston oil squirters, inherently perfect balance, etc


Also, don't get me started on the full variable valve timing and dual injection system of the FA20 being lightyears ahead of most LS motors.


Still say if your goal is only 500HP, the LS is a waste of money (hell, Full Blown did over that on a stock FA20 and a build FA20 should take that all day)


Sideways&Smiling 10-12-2014 04:09 PM

Quote:

Originally Posted by Reaper (Post 1981070)
Toyota designed it. Subaru built it. Toyota gave them a rear end a transmission and an efi. Toyota actually built the prototype out of a hacked up legacy.

Was it a Legacy? I thought it was an Impreza.

Reaper 10-12-2014 04:21 PM

Oops my bad.

Sideways&Smiling 10-12-2014 05:22 PM

Quote:

Originally Posted by Reaper (Post 1981373)
Oops my bad.

Yeah, I think the whole idea for this car was inspired by the drift team Team Orange converting Imprezas to RWD for competition. That's honestly the beginnings of the FRS/BRZ/GT86, I think.


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