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I haven't used the rot idle in quite a while but from what I remember you have to make sure the IAC is cranked up and you could always try raising the cut rpm. Also the ignition cut is a much faster cadence.

@@chrisfoster5044 gotcha. The platinum pro only has fuel based I believe. I’ll try and mess with it a little bit more later on.

@904Saleen oh I totally missed you had a platinum pro. That has a mixed ignition/fuel cut algorithm. I have another video on this channel with the platinum pro on this car.

@@chrisfoster5044 can you link it? I’d like to see that one.

​@@904Saleenth-cam.com/video/ZVEXzMx6tLg/w-d-xo.htmlsi=jNAZVY5_kM7xl2T1

They all run the same software so I can't see why they wouldn't be able to. It's really just opening up the IAC and cutting fuel/spark events. Not rocket surgery.

It really starts building boost around 3500 and full (17 psi) is around 4200. You could probably get 700 wheel from it if you really stretch it out on the biggest rear housing but 650whp is a more realistic figure.

It's honestly a different tone altogether. The Tomei is louder for sure but it has that high pitch sound to it.

​@@chrisfoster5044Thanks for the response! At the end i went with a reinhard exhaust. 3.5 was going to be too loud hahha.

At the time...stock.

Stock ? Even with stock cams there’s no way it should sound like that , unless GTR have different cams to rb25 , could you possibly share your rotational idle settings so I can test it on my 25 cams?

@jimmyletalu7715 I don't remember the rot idle settings I had at the time as this vid is over 6 yrs old, but I do remember it was still on a Haltech Platinum Pro which used a combination of fuel and spark cut​. I think the rpm was set around 1100.

​@jimmyletalu7715 and yes the GTR (rb26) has different cams compared to the rb25 as well as a better flowing head and different valve components.

I love free stuff lol!

It spools faster than my old BW S360; full boost (17psi) near 4200ish. The transient response is much better, though, as it spools near instantly after 4500. Honestly, I would stay with the TS 1.06 on a 2.6 if you're running any kind of rpm and already have the manifold for it. I feel like the 0.83 would choke with this size turbine.

@@chrisfoster5044 rb25 head have litle bit smaller valves and rb26 head flows alot better. On 0.83 what i think it is close to choke limit but i only need push it to that 650 -700bhp mark. Its not neo head sadly. You running only 17psi on that g30🤔?

@hannonen9740 yeah im on a stock bottom end so I'm not pushing anywhere near what this turbo can produce. I was future proofing a little when i bought it but it still turned out to be more responsive than the smaller turbo i had before. You could always try the 0.83 and let us know how it goes. There are not a lot of builds with the g30-900.

The starter is stock. What you're hearing is the lightweight aluminum flywheel as the starter turns it over.

Nope. The regular g-series compressor housing is plenty loud.

It is a g30-900 so a bit bigger than a gt30. On pump 93 it was at 430 awhp on 17psi but that was when I had the old Borg s360. Should make closer to 500 now that it's on e85 and a bigger turbo but that's just me speculating.

What power are you after? I would be more tempted to go with a g35-900 on anything larger than 2.6l especially given the rev happy nature of the RB. If you're only looking for 650-700rw and a rev limit of 8K the g30 would be ok.

@@chrisfoster5044 honestly, my goal is response, and max 550whp. yeah others have suggested the 35-900 as well, bare in mind this would be on 98 as well

@@xxxclusv should do very nicely then. I would definitely use the 1.06TS housing though.

I have a R33 GTR with a stock 2.6l bottom end and G35-900 1.01 rear housing. I considered the G30 but I'm so glad I went G35!

@@sicwitit1981 good to hear man! I do think it would sacrifice a bit of spool for more top end but it's all in what your after.

You may notice better transient response one stock sized turbos. The big benefit comes when you go up in turbo size. You can keep more of your boost response down low and have better transient response. It's not a magic bullet though.

Truest of words

I can have 5 psi pretty much from 2k but it's still doesn't make good power there. 10psi around 3.5k. It starts really picking up around there.

@@chrisfoster5044 5psi is kinda my benchmark for "Is it actually doing anything?" It's been said that 5psi is enough to eliminate pumping losses and add to economy, so if you're getting 5psi at roughly cruising RPM, then you're pretty good ig. Something else I noticed in the vid is wheel hop. Have you considered poly bushings? 90A or 95A on the suspension and differentials and 75A or 80A on the engine and trans should do you pretty well without being too harsh as far as vibration goes.

@Drunken Hamster I definitely need to go through the subframe and redo all the bushings. I'm usually gentler on the car. Lots of 30-40 mph rolls.

@@chrisfoster5044 Hey man, sometimes neglect piles up. Just means you enjoy driving too much, lol. Sick car, dude, hope it treats you well for a long time.

Not for sale.....yet

@@chrisfoster5044 yyyyyyyyy

Eventually. Just need to find the time and energy. What's your build looking like?

@@chrisfoster5044 fully built motor, 9.0 compression, dogbox trans, ems, 2200cc injectors and g30-900 .83ar

@mike reed rb26? Honestly you may find the 0.83 housing small. Definitely going to have to get some vids of yours up!

@@chrisfoster5044 I sure will on my channel

@@chrisfoster5044 Are you sure? Guys with 1JZs are having to use the largest AR housings with G25s just so it doesn't choke the motor. G25-660 twin scroll on a 1JZ is like instant boost, 550whp, and carries to, I believe, 8k rpm. I think Adam LZ said it was one of his favorite f**kboi setups.

Thanks she is pretty for sure!

When this video was done it was about 430rwhp. Haven't had it dynoed on the new setup but it should be somewhere around 480rwhp.

1.06 T4 split. It's good. Better than the smaller s360sx I had before. Full boost at around 4000 with transient being instant anything after 4500. Boost response feels much more connected to where throttle input is if that makes any sense.

@@chrisfoster5044 thanks for reply. Just finishing build with exact same turbo. Chose the smaller g30-900 over g35 for quick spool and larger 1.06 for control with space for top end. She had a T04Z turbo and 640hp before, which saw full boost at 4500rpm. So this new setup sounds like it should see faster spool. Great to hear.

@Mark Collins nice! Get some vids up of the setup as there are not too many g30-900s on TH-cam especially with the 1.06. I think 700whp would be possible out of this turbo but it will be stretching it on an RB with a modest rev limit. Good luck and reply back when you get some seat time, let me know how it feels compared to the t04z.

The spinny boy? Yeah it's pretty nice.

That’s not stock idle lol

Yeah brodi Ikkkk

17psi

Eventually. It's a little harder to do than these in-car vids but ill make it happen someday.

@@chrisfoster5044 at what rpm do you hit full boost?

@bm717252 around 4200rpm in 3rd gear if starting below 3000rpm on a flat surface. Depends on a lot of variables actually but usually around there.

I will if you do.

@@chrisfoster5044 I just did. haha.

This is spicy

Don't know haven't dynod. Some day I'll get the time to throw it on the dyno and find out.

It determines what is cut per engine cycle; fuel or ignition.

I have the Tomei 262 cams. I can't see how bigger cams would change the ability to use rot idle but I don't know why you would want to use it unless rallying the car. The big cams would probably sound better than the rot idle.

Huh I would have thought rally would use ignition based because it cuts ignition events allowing unburn fuel to both cool the engine and provide extra exhaust energy when the ignition comes back. Much harder on engines but very effective. I love the haltech elite! It has way more features than I need and the ability to upgrade is incredible. The nexus software is intuitive, easy to learn, and expansive. Not to mention all the great support you get from the team at Haltech. It would easily be one of the first mods I do to any older efi vehicle. I haven't heard anything bad about the G4 but I would never change based on how well this ECU has worked for me.

I can't tell if that's a good thing. If so, thank you. If not, I have two trunk lids so I can run with/without whenever I choose.

@@chrisfoster5044 no problem just joking it was weird seeing a r32 gtr without a spoiler

It's ecu tuning; rotational idle.

@@chrisfoster5044 ahh i see, thanks!😺

Thanks! Yeah those were some good times for sure. I had to bring the cams back to 0/0 to pass emissions in the states and I haven't switched back yet. I will someday and make another vid.

@@chrisfoster5044 Did you do your mapping/tuning yourself? I'm currently in the re-shimming process as I have just dropped in Tomei JP poncam Type Bs. Trying to understand how I have to accomodate on the ignition timing table and how much I can advance/retard the ADJ cam gears safely

@@threadscrossedmechanic1622 I did do my own mapping and I'm continually messing with it to find the best settings. Luckily type Bs aren't too far from stock so timing doesn't really have to be changed but I run conservative timing anyway. I had my cams installed by Speed Factory in Oki so I never had the pleasure of messing with shims. Best of luck and get another vid up when done!

@@chrisfoster5044 Do you have instagram? Hoping to pick your brain there regarding ignition timing (ecu) and adj gear timing

@@threadscrossedmechanic1622 sorry for the delay. No IG but you can email me @runnerup89@yahoo.com

Yes you can do it with the platinum pro but it didn't have the two different types like the elite series. I have a short video from about 4 years ago on my channel with it on the platinum. Can't really remember the settings exactly from the platinum but I do remember it being extremely easy to set up. Good luck!

Yeah it does seem difficult to get ahold of them now. Could always try reaching out through their Facebook page. I would upgrade the wiring in the kit from the battery to the relay to at least a 10gauge if your running a big pump but overall a great kit.

The ignition based rot idle cuts an ignition event for one cylinder per cycle and the fuel based does the same but cuts a fuel event.

Just the ECU had to be swapped. I went with a Haltech Elite 2500 and it has been great but I'm sure other ECUs could enable this function.

@@chrisfoster5044 nice.

Platinum pro can only do fuel based. I could be wrong but I believe the Platinum pro "fuel cut" is a mixture of both fuel and ign as it sounds entirely different than the fuel cut on the Elite series.

@@chrisfoster5044 ahh thought so man! thanks for the reply i will try play around with it more

1992. Thanks!

Cool. An R32 is one of my dream cars to own

@@tioescobar1746 they really are something special. Good luck and hopefully someday you can own one.

It's supposed to be used for rally type racing to help increasing cooling and I think to help keep the turbo spooled. The rotational idle is typically set at a higher RPM than what I have mine set to.

@@chrisfoster5044 Ah, I see, I'm not at all familiar with rally stuff. So there isn't much point in installing it on your car for example, other than for personal preference?

@@Lada333 pretty much. It was an option in my Haltech so I decided to try it out. If you do a LOT of anti-lag it could be helpful to cool the car.