Jump to content
SAU Community

HKSGT** head to head with GCG H-flow

SLY33

By SLY33,
in Engines & Forced Induction

 Share

Recommended Posts

jazza08 Mentor

jazza08

Posted
Posted
Don't think i'm invited, rb20 with stage 2 gcg highflow. It brings new meaning to the term laggy :D

boost curve is something like:  

2000rpm    0psi

2500rpm    0psi

3000rpm    1psi

3500rpm    3psi

4000rpm    6psi

4200rpm    12psi :)  

i only run 12psi atm until the new injectors go in next month and the car gets a tune

makes 173rwkw atm

Is this the 450hp r33 GCG turbo rebuild on an rb20??

As im looking at doin this myself, but thats abit friggen laggy...

Do you have 3' or 2.5' intercooler piping? 3' Dump? Is it split? Just a few things that have some say on lag...

BHDave Grand Master

BHDave

Posted
Posted
Is this the 450hp r33 GCG turbo rebuild on an rb20??

As im looking at doin this myself, but thats abit friggen laggy...

Do you have 3' or 2.5' intercooler piping? 3' Dump? Is it split? Just a few things that have some say on lag...

It's the old style stage 2 highflow (rated around 480hp when they were still sold)

It will be a bit laggier than the current highflows that are sold by GCG which are pretty much the original stage 1 highflows (450 hp)

It wasn't as bad as it looks, in the end i just got used to driving above 4k when i wanted to go fast and it used to come on boost hard and spin up the wheels from 4500 to redline easily in second. Trouble was on the 1st-2nd change it would drop back below the boost threshold so you couldn't keep it going through 1st and second.

Injectors went in and shortly after that the car developed a mystery missfire and the engine started to get a bit tired (probably form being driven over 4k all the time). I wound up the boost to 15psi at the end as i didn't really care if i popped the engine and it went even quicker, regularly breaking traction in third. Seat of the pants it was making a fair bit more than the 173.

In the end i chucked an rb25 in the car. Running the same turbo and a manifold with a piss weak home tune it made a very easy 200rwkw on 14psi. A/f in the 11s. Still a bit slow to come on boost though.

ECR033 Mentor

ECR033

Posted
Posted

I'd also love to see some sort of decent comparison between the hi-flow and the GT-RS. Having heard many differing opinions on both turbos (mostly from partially biased owners trying to justify the $$$ spent), it would be nice to have a more concrete set of performance results to compare from both turbos on the same set up.

This info would be particularly helpful as I'm also in the process of deciding whether spending the extra dollars on the GT-RS is worth it for me...

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

    • r32-25t
      Why am I hitting a power wall with my stroked RB25?

      By r32-25t · Posted

      When you say your cams are 272/262 is that 272in and 262ex?
    • Kinkstaah
      Nismo GT Pro LSD configurations

      By Kinkstaah · Posted

      We're arguing semantics. I am saying 45 accel and a 55 deccel ramp are "2 ways". Even a 45 degree ramp and an 89 degree ramp is "2 ways", because it is literally... two ways. The cusco 55/30 ramp is a 2 way. It's two ways. I get it though - in normal nomenclature a "2 way" would be 45/45 or 55/55 or 60/60 i.e the same locking in both directions. And something like 45/65 would be considered "1.5 way". I would then say if we're getting into the nitty gritty then every locking diff is a "2 way" diff and we should not speak in 1.5, or 2 ways but ramp angles instead. Which ofc if one of those ramp angles is 90deg, that side is not doing any locking. :p So Nismo don't obviously sell 3 things. The fact of the matter that they only sell two items really goes to show that there's a 2 way and a "1,5 way" which is really a 1 way. I believe the actual lockup for the 'adjustability' of the GT pro is really just setting preload for when the ramps actually start locking up. It's not changing how much 'wayness' there is. It is (somehow) horribly explained. People just buy whatever diff and go "locks up good bruh" and that's what ends up on socials forever.  
    • PranK
      New Skyline will be RWD and manual

      By PranK · Posted

    • GTSBoy
      Nismo GT Pro LSD configurations

      By GTSBoy · Posted

      No, you're wrong, and you've always been wrong about this. The Nismo has 2 sets of openings. One is a real 2-way, and the other is a 1-way. There is no 1.5-way possible with the ramps that they offer. A real 1.5-way does exist. That Cusco stuff I posted is a prime example. If the forward drive ramps are, say 55°, and the overrun ramps are, say, 30°, then you will get about half as much LSD effect on overrun than you do on drive. It is real, it realy works. OK, you're slightly right. The Nismo has 55° and 45° ramps on the 2-way, so it does offer less LSD effect on overrun. But, I think that just means that they've (probably) sensibly established that you do not want actually equal LSD effect on overrun. You just want "quite a lot, but not quite as much as the drive LSD effect".
    • DraftySquash
      Newbie from VIC

      By DraftySquash · Posted

      Just wanted to unearth this and post my baby with the new front ❤️😝 Took her to my wedding rehearsal today. Next up is getting wide skirts (after wedding)
×
×
  • Create New...