Jump to content
SAU Community

Recommended Posts

The JZX100 (or the later models of it) use a 1JZ single turbo same as the late model Soarers (as the early ones use a twin setup). Both the late soarers and the Chaser also have VVTI. Essentially they are the same engine.

In terms of twin setups.. I'm assuming you're talking about Japan as theres barely any JZX100's in Australia... if you are yes it has been done many times over. I disagree with the comment that people buy single turbos because they are "cheaper". A turbo conversion is not a cheap exercise either way but consider why someone may buy two singles as opposed to a large single on a GTR. They'll have different characteristics in responsiveness, power, lag etc etc.

I wonder what happens to the engine management system if, say, one wants to convert a twin turbo setup on a supra to a single turbo setup. Does aft ECU like PowerFC can be used to control a twin turbo setup and/or single turbo interchangeably?

Maybe you're right, this will be extra $$$ involved changing the ECU when you converse twin to single turbo/vice versa?

On the other hand, if Toyota decides to abandon the twin turbo setup will that be due to production cost/meeting emission requirement in Japan?

I think JapLink in NSW already start importing JZX100 to aus, but hey, I dunno, check with them. HPI said their phone no is 02-97160857. Do they have a website btw?

I'm 99% sure that the JZX100 is already a single setup.

Anyway the Chaser has already been discontinued in Japan as of this year. I think all 2JZ and 1JZ engines are being discontinued.. some already are such as the JZA80 Supra, Mark 2 I believe has also been discontinued. Yes these engines are being discontinued for emissions. No idea about production cost.

Yes if you buy an aftermarket turbo you should buy a new ECU. Its not really as simple as just changing a setting on the handset I think. With different turbos you probably need to upgrade different things. For example in a GTR if you edn up getting a single conversion it is usually a pretty big turbo. This means upgading a lot more things than just the turbo.... such as intercooler, ECU, injectors and the whole fuel system like fuel pump an regulators etc, AFM's lots of things..... in order for all these things to be tuned properly aftermarket ECU is needed.

So what r they gonna use to replace 2JZGTEs then? Is Nissan also abandoning the RB engine soon? Looks like the death of the turbo era :D **sigh** I read that R35 skyline (or V35 callit whateva) would not likely to be turbocharged.... I wouldn't mine tho if they pack all these cars with V8, V10 or V12 & 400kw inside heheheh

I can't remember the replacement. But many of the toyota turbo models such as the Mark2, Laurel and Chaser have been merged into a few models that bridge the gap between the different kinds of cars...... none of the engines are turbo... YET!

I THINK the RB's have already been discontinued... the V35 at the moment has an atmo engine.... dunno if turbos are on the horizon...

  • 5 months later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • Hi everyone, I've been wrestling with this for a while now and have been trying to find out the cause. For context, the turbos used are Garrett 2860 -5s, the BOV is a BNR32 HKS SSQV IV kit, the car is currently tuned to ~470 whp on 17.5 psi. The car drives normally, pulls well when it doesn't happen, and I can replicate it fairly easily. It does not sound like turbo shuffle or flutter. The engine has only a thousand or so miles and has had this behavior since it was completed. After my engine was built for my R32 GTR, I noticed that the car now sometimes makes an air discharge sound on what appears to be positive boost pressure that sounds really similar to a BOV. I had thought that it was a BOV issue but even when replacing it with a brand new unit, the sound persisted. It seems like it's coming from the passenger side but I may be mistaken. The closest scenario I could find was this post here https://www.gtr.co.uk/threads/maybe-a-boost-leak-opinions.147955/https://www.gtr.co.uk/threads/maybe-a-boost-leak-opinions.147955/ started by @yakshii and it sounds very similar. As in, at partial throttle once I reach positive boost I begin to hear the same psh psh psh psh psh sound like air is leaking somewhere when I keep the throttle in the same position. It most commonly happens in 4th gear at around 3-3.5k RPM and 5th gear around 2.5-3k RPM, which seems to coincide with normal positive boost thresholds. It might be similar to what @Austrian GTR mentioned about his own HKS SSQV. Notable difference would be that when he applies more throttle when it happens, it stops. In my scenario if I apply more throttle during this repeated psh psh psh sound, the cadence of the sound gets faster and louder rather than stopping. If I lift off slightly and apply throttle again, it will normally stop and pull without issue. I've checked all rubber couplers to ensure that they are tight, but have not gotten the opportunity to properly do a pressurized boost leak test. If anyone has had similar experiences or thoughts on what might be the cause, I'd be very keen to hear them. I also have a video of it happening from inside the cabin, if that would make it easier to understand: https://youtu.be/2zqZXcx8jbA
    • I'd want at least $40K for mine, but thats easy to say cos I'm not selling anyway.
    • That's incorrect. We have 4 seasons, consisting of pre winter, winter, post winter and a small glimpse of hope! 
×
×
  • Create New...