2jz swap

[chrisl]

Sure, but do you really need more than 500+hp (LS7) in a BRZ?

[gymratter]

Originally Posted by chrisl

Sure, but do you really need more than 500+hp (LS7) in a BRZ?

Me? No, but if thats what the OP is looking to do. idk.

[SomeoneWhoIsntMe]

Originally Posted by Draco-REX

In general terms:

Custom "2JZ" engine -wrong
Custom oil pan - wrong
Custom engine mounts - available off the shelf
Custom intake manifold - wrong
Custom exhaust manifold - wrong
Custom exhaust system - I suppose correct if you count custom as having an exhaust shop make a foot or two of pipe
Custom ECU - wrong
Custom cooling solution
Custom transmission - wrong
Custom transmission tunnel
Custom firewall
Custom dashboard
Custom center console - wrong
Custom drive shaft - most aftermarket driveshafts are built to order anyway, this is no big deal
Custom rear subframe - absolutely wrong
Custom rear diff - the stock rear diff is the same as a lexus IS300, you couldn't be more wrong
Custom rear axles - wrong
Custom fuel system

And then there's all the other stuff you'll have to fabricate that you'll discover along the way.

smh. some of the fucking naysayers on this forum.

edit: the FT86 bay is also not "bigger than a supra" and you're high if you think a 4A-GE is a good swap in anything modern.

[Synack]

Originally Posted by SomeoneWhoIsntMe

smh. some of the fucking naysayers on this forum.

Better to be realistic or pessimistic when building a car because you will constantly be let down if you're trying to be optimistic. Swapping motors HARDLY ever goes right without issues. Especially if you're one of the first to do it.

[SomeoneWhoIsntMe]

I'm not saying the OP is going to finish a JZ swap because he obviously has no idea, I'm just saying it's CRAZY that people that know literally nothing about the work involved just make shit up and post it on the internet. Then someone reads that post, takes it as gospel because they read it on ft86club, regurgitates it again, and so on and so forth and we've got new "forum knowledge".

Being realistic would be having any fucking idea what you're talking about and saying something more along the lines of "you'll need to purchase mounts from xcessive manufacturing to make the engine it's self fit, but you're on your own with swapping in an R154. you'll need to clearance the tunnel including possibly cutting and welding areas of it, you may need to purchase an extended shifter housing to get the shifter location right. you'll to order a custom driveshaft, and make your own fuel lines and replace the pump with a walbro or something. make sure you get a front sump JZ, because that's what fits our chassis. you'll need standalone, and you may need to pay to have a shop wire it for you, or you could ask mark panic at panic-wire.com to make a harness. if you're using a 1jz vvti you'll probably be straight on the stock single turbo, but if you've got something with factory twins you'll probably want to switch to a big single setup to make fitment easier"

[slicktop]

Originally Posted by SomeoneWhoIsntMe

smh. some of the fucking naysayers on this forum.

edit: the FT86 bay is also not "bigger than a supra" and you're high if you think a 4A-GE is a good swap in anything modern.

I guess my measuring is off then? I used TSM dimensions for the Supra and measured the same way in the FRS. The major difference I found was the radiator is under the support whereas the Supra has the radiator behind it. That was the difference. The width of the engine bay on the FRS was larger by a few inches IIRC.

In any case, I agree with your post. The largest headache in this entire swap for me has been deciding on the EMS. I don't want to run dual ECU and Hydra is the only "affordable" EMS on the market that I've come across to have complete standalone (next to Motec, but damn $$$).

[SomeoneWhoIsntMe]

Why not AEM series II EMS? Mark Panic at panic-wire can set you up with one.

And there's space in a JZA80 supra engine bay for the rad to sit behind the core support, have a big fan shroud, and a clutch fan. In the FRS, the crank pulley sits in line with the core support. Length is the critical dimension here, not width.

[slicktop]

Originally Posted by SomeoneWhoIsntMe

Why not AEM series II EMS? Mark Panic at panic-wire can set you up with one.

And there's space in a JZA80 supra engine bay for the rad to sit behind the core support, have a big fan shroud, and a clutch fan. In the FRS, the crank pulley sits in line with the core support. Length is the critical dimension here, not width.

Because it needs to be run tandem with the stock ECU to work. I don't want to run dual ECU, and Hydra as well as Motec can do what I'd like. Just preference, both work.

[continuecrushing]

lol at this becoming a serious thread

[continuecrushing]

Originally Posted by SomeoneWhoIsntMe

Why not AEM series II EMS? Mark Panic at panic-wire can set you up with one.

And there's space in a JZA80 supra engine bay for the rad to sit behind the core support, have a big fan shroud, and a clutch fan. In the FRS, the crank pulley sits in line with the core support. Length is the critical dimension here, not width.

Pretty sure that's NOT what she said

[SomeoneWhoIsntMe]

Originally Posted by slicktop

Because it needs to be run tandem with the stock ECU to work. I don't want to run dual ECU, and Hydra as well as Motec can do what I'd like. Just preference, both work.

probably at least dozens of 2jz's have run without being hooked into stock FRS computers

what all does the FRS ECU control that actually matters? are the door locks tied into it or something? ABS, not that you'd want it? Electric P/S?

[slicktop]

Originally Posted by SomeoneWhoIsntMe

probably at least dozens of 2jz's have run without being hooked into stock FRS computers

what all does the FRS ECU control that actually matters? are the door locks tied into it or something? ABS, not that you'd want it? Electric P/S?

The EPS system. And all my accessories. My car is aimed at the ultimate daily driver. A/C, power steering, traction control. Basically as if the 2J came in the car from the factory.

[RickyB]

Originally Posted by SomeoneWhoIsntMe

probably at least dozens of 2jz's have run without being hooked into stock FRS computers

what all does the FRS ECU control that actually matters? are the door locks tied into it or something? ABS, not that you'd want it? Electric P/S?

It's a matter of how many things you want to replace, I guess.

If you take away the CAN integration, you will have to rip out the gauge cluster and find something to replace all the gauges with. You will probably need to live without ABS, stability control and electric PS, since these get their "run" signals from the ECU CAN. You will also have to rip out the stock climate control system since it communicates with the ECU via CAN to tell it when to run the A/C compressor.

Running the 2JZ is a piece of cake. There are tons of good ECUs out there that will do it. Integrating with the FRS CAN so you don't have to rip out and replace most of the dashboard is only something Motec and Hydra have figured out how to do.

If you are building a race car, go nuts, rip everything out and run the engine with anything you can get your hands on. If you want a nice sleeper street car that looks and acts like stock until you open the kimono, you will probably find an ECU that can run the 2JZ and integrate with the existing CAN to be the easiest (and probably cheapest) way to go.