Jump to content
SAU Community

Choosing Cold And Hot Side Housing For Gt3071R

roberts

By roberts,
in Engines & Forced Induction

 Share

Recommended Posts

The Mafia Grand Master

The Mafia

Posted
Posted

sounds like the RB25 VCT.

Advances the Inlet cam something like 15-20degrees and sets it back to normal at 4500rpm.

The complete opposite of VTEC.

Can you get a controller to modify it, so you can specify when it comes on and off? Would be worth the experimentation.

Rolls Grand Master

Rolls

Posted
Posted

Nah it is completely different, it changes the complete exhaust cam profile over at high revs, eg it is inactive below 4500 rpm and activates from there to redline, where as the VCT just advances the intake cam.

wolverine Grand Master

wolverine

Posted
Posted

HKS GT-RS sounds like it is made for your application.

I personally would start from scratch and write off the cost (try to get a return credit) and get a T3 turbo with known turbine/compressor housing combos. The cost of buying and machining turbine and compressor housings from here will prove an expensive exercise with no real guarantee of a good result.

It seems it's really better to sell my new chra to someone else and look for gt2871r as it will give me better powerband with same top end.

:thumbsup:

Are you going externally gated? If so there are some nice Tial turbine housings as an option for a GT2871/GT-RS sized turbos.

I think you are going the best way by re-thinking using the CHRA you have.

  • 2 weeks later...
roberts Rookie

roberts

Posted
  • Author
Posted

Thanks everyone who posted to share thoughts and knowledge!

As for vtec, it changes to different (more aggressive) cam lobes when engaged. ;) Timing and vtec engagement can be adjusted with some great tuning softs through oem Honda ecu.

Wolverine, I was already externaly gated so I will be the same on new turbo.

Disco, what do you think of 2871r's 56 trim version instead of 52trim? I might get good offer for 56trim so I am looking compressor maps to compare ->

472560-15comp_e.jpg743347-1&2comp_e.jpg

But as compressor maps can not show all I would want to hear people experience. Also do you think .63 or .82 exhaust housing would be better choice?

P.S. Hope you and all and Skylines are fine there in Australia because of massive flood.

hypergear Grand Master

hypergear

Posted
Posted

And if we talk more about anti surge ported housings, why you don't suggest it "hypergear"??

Sorry missed your post earlier. Would you (or any one) know any advantages that should be mentioned in having those anti surge slots in this specific setup?

badhairdave Proficient

badhairdave

Posted
Posted

Hey mate

I've tuned a couple of SR20s that have them, and no, didn't do that good of a job at all. For some reason, I felt a 2871 or a 3076 with small housings would have been better.

Proper ones or the horrible t2 int gated things? With the right cams a proper 3071 will make boost earlier than a 2871 and destroy it up top.

Mine, just a regular -5023 3071 with a .63 rear on a china manifold with short duration big lift cams and springs. engine is stock otherwise.

12092009096.jpg

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Dose Pipe Sutututu
      Dose's Sometimes DIY and Pay Someone Home & Boat Improvement Thread

      By Dose Pipe Sutututu · Posted

      Wife wanted basket things in the wardrobe in our temporary house. Thought about ripping our the wardrobe and fitting the entire IKEA set, but it's a temporary house and we want to move in a few years. So IKEA advertises this as a 50cm unit, however the actually basket and rails measure 46cm wide. Only issue was depth, IKEA stuff is quite deep, where as the builder special junk is super shallow at less than 40cm. Send it, chopped the rails, then offset the mounting holes, job done, happy wife, less shit scattered all over the bedroom. Did the same to the other side too. Also drove the Skyline shit box today, dropped off oil at Supercheap Auto. I didn't realise they only now take max 2x bottles per visit. I visited 2x Supercheap Autos.  
    • Kinkstaah
      Strange issue RB25DET wont start

      By Kinkstaah · Posted

      I've seen similar actually in my situation. You never know what tables are attempted to be used when the car thinks it's -99C or +200C. The fail state is not usually that extreme but you know what I mean - it was in my case though! This is where being able to read all the sensors is useful cause you see this stuff really quickly.
    • Kinkstaah
      First time Skyline owner

      By Kinkstaah · Posted

      The above is very important. However as long as you keep timing relatively low, it's plausible to make your own knock ears and plausible to learn to tune with a modern ECU that can do wideband O2 correction like a boost controller. I mean if you only have one viable road to even drive the car on, learning to tinker to this level may be worth doing given you can't do much else with the car...?
    • Kinkstaah
      Chris' Toyota Mark ii JZX110

      By Kinkstaah · Posted

      I find the fact that the rear plate has to be bent inwards at the rear not so bad: but the front is just awful: It's like come on. (these are my very old, now retired/turned in plates) TBH it is a lot of money to fix a minor issue, the fact I said "I'll never really spend the money on doing this" is why people ended up buying them as a gift for a 'car guy' who can be hard to shop for.. for car guy things.
    • GTSBoy
      Chris' Toyota Mark ii JZX110

      By GTSBoy · Posted

      I just bent the ends of my premo plates. It even went through Regency like that after the engine conversion and the inspector (a great bloke!) just squinted his eyes and said "I didn't see that". Plates, and how they look, are just something that have zero importance to me.
×
×
  • Create New...