Jump to content
SAU Community

Recommended Posts

Like the title says, I am looking for any info anyone has on the new HKS T04Z. I searched this whole board and read every post regarding the t04z, and I've searched about 5 other boards related to my specific application (rb26). I haven't found much info. I was curious if anyone here has any experience with it or might happen to know where I could find more info. I even searched google and mostly just came up with some Japanese websites. The main thing I am concerned about is lag. However, looking at mk4 Supra dynos w/ the t04r (thanks t04r.com!), and considering the t04z is a DBB turbo w/ almost the same specs, I don't think lag will be much of a problem. I'm thinking of going with an exhaust a/r .81 out of the 3 different ones available.

After researching for quite awhile, I've narrowed down my turbo options, and this is one of them. I love HKS turbos, so I am going to go with one, even though I know there are far cheaper turbos with similar performance. I do know the to4z is dual ball bearing and good for ~700hp, which more than meets my power goals. I'd like to ultimately have ~500+rwhp at the very most. I wouldn't run at that power level very often, but I'd still like the capability of doing it whenever I want to. I had considered the T51r KAI just because it's an awesome turbo! :D However, that is too much turbo considering my power goals. I had also considered the Nismo N1 turbos, HKS gt-ss' and gt2530's but now I'm leaning towards going single to really simplify the turbo setup and cut down on plumbing, piping, etc. I've also considered the t04s and t04r however the price difference between these 2 and the t04z isn't too much, and the t04z seems to basically be a DBB t04r anyways. I want to cut down on lag as much as possible so I like the idea of the t04z. Any help anyone can give me is much appreciated. :rofl:

Link to comment
https://www.sau.com.au/forums/topic/37465-hks-t04z-info/
Share on other sites

Hi porschephile, have you considered a Garrett GT35R for 700 BHP? Since your goal is 500 rwhp (600 bhp) a GT30/40 would give that result with better response than the GT35R. You are paying a lot extra for a HKS sticker and box.

I know this is obvious, but just in case. You should also keep in mind that the 2JZ is 3 litres and the RB26 is 2.6 litres. That means 15% more rpm to achieve the same exhaust flow.

As for twins, I have yet to find a better all round turbo/s for a 2.6 litre RB26 than a pair of 2530's. I have tried lots of combo's on many standard capacity RB26's and the 2530's win every time for all round (road, drag & circuit) performance. At the current Nengun price they are a bargain.

Hope that helps

Link to comment
https://www.sau.com.au/forums/topic/37465-hks-t04z-info/#findComment-754942
Share on other sites

Well, the reason is I am obsessed with HKS! :D Seriously, I just really like HKS and their products, and decided I am going with an HKS turbo. I know there are far cheaper turbos with similar or better performance (like Garrett), but I want HKS. Call me crazy. :D

I have considered the 2530's and I do like them. They seem to provide the best all-around performance for low-end, top-end, reponse, etc. I plan on building another Rb-Z in the future, and it will most certainly have 2530's on it. However, right now I really want the single turbo "sledgehammer-in-the-chest" acceleration. :)

As for displacement, I do realize the .4l difference and how that effects everything. Though, I was just going by 2jz to4r dynos to get a general idea of what I am looking at. The to4z being DBB and rb26's higher rev band then the 2jz's will definitely help compensate.

That link didn't work for me. Any idea why? I see it's a pdf, and I would definitely like to take a look at it.

Link to comment
https://www.sau.com.au/forums/topic/37465-hks-t04z-info/#findComment-757266
Share on other sites

yes I have one. A/R 0.81. should know some results some time soon :D

i have had this turbo since November damn it just sitting in my cabnet looking pretty.

I dont know if its a good idea unless you are going to do the whole deal...but the japs seem to be making good results with the 1.00A/R.

I just didnt want too much of the lagg that came with that...

time will tell...

Link to comment
https://www.sau.com.au/forums/topic/37465-hks-t04z-info/#findComment-761424
Share on other sites

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


  • Similar Content

  • Latest Posts

    • I should note too as I have all 4 wheel speed inputs to the emtron I now have the emtron controlling the attessa solenoid for 4wd/traction and launch control strategies. 
    • It works quite well with the adjustibility within each of the programs of the turbolamik. Essentially p1 is drive and lockup comes on like a normal driver.  But in program 7 I have customised it to not request the lockup clutch to engage until something like 6500/7 when slip was the lowest. 
    • Yep, I like that. The tags are only on the first post of a thread and we don't get huge numbers of new threads. Also, I plan to add some more report types and we could have a member report type like 'review tags' then members could flag if they thought a topic wasn't tagged correctly.  No way man, I dig the input. Thanks! 
    • It's a valid thought. There's not exactly that functionality already (when creating a thread) - that's where the OP can use/create any tag they want. We'd have to come up with a way for the user to request their tags get reviewed or something. Otherwise the mods would have to review every new post's tags (for those that have them, anyway). There's kind of that functionality already exists to some extent, post facto of starting the thread, where the OP or any other user could report the post to admins, and request that tags get reviewed. We could do this already, and any user could already have made such a request. To make it a part of the forum proper, it would require an initial and an ongoing education programme, so that people know that it's a thing. OP based tagging/request for review would also require at least some (probably most) of the user base to be told that it's a thing they can do. Both of these things probably wouldn't spread too far and/or get used very much. If it was the standard approach on a lot of different sites, then it might do, because people would be used to it. Prank's approach to this differs from my original thought, by leaning into tagging. Which is fine - it's possibly better than what I originally suggested. In fact, I just went to the R32 GTR wiring diagram thread and added tags, including "Library". That's probably a good way to use tags and the idea of a library. We just have to drag together an (organised!) index of threads or posts that have that tag. I have yet to do any of my own follow up by pursuing worthy threads and posts and reporting/marking/tagging them for the library, such as the @Sydneykid stuff I was talking about, and possibly any amount of @Lithium 's and others' posts. At least if I tag them Library, we'll have a start.   Back to @Wazmond's idea as it relates to @PranK's, we might have some sort of a list of tags that are already used to scrape for this library. I'm not entirely sure how that would be presented or used, particularly if it got long. But it's yet another idea!   cheers
    • Just a thought, but instead of restricting, is it possible to do like an "up for review" kind of thing? Where say someone who's not an admin/mod tags, it would require approval for it to actually tag? User posts with a 'tag' > Admin/Mod Reviews > Approves tag > Tag now exists kinda thing? Just came across this thread so Im not too sure if Im straying off topic or not but forgive me if i am...
×
×
  • Create New...