Jump to content
SAU Community

Recommended Posts

If it truly has full boost at 3k I really doubt it'll make over 250kw

garret who have far more engineering experience can't even make a turbo that does that, sorry to be negative but I just can't see it being true.

If it truly has full boost at 3k I really doubt it'll make over 250kw

garret who have far more engineering experience can't even make a turbo that does that, sorry to be negative but I just can't see it being true.

See turbochargers engineered in this project are solely for RB25det engines, Garrett would make a turbo to suit a variety of engines. There are room for improvement when designs becomes specialized.

At moment it feels like some where around the 280rwkws mark with very steady torque. Its drives very differently to any other turbos I've engineered or experienced so far. I'm expecting an out standing result.

If this turbo makes 280kw with full boost at 3k I will buy one in the near future, providing it holds the power to at least 6k on less than or equal to 20psi.

This will be a garret killer if it makes those results!

my current highflow makes full boost at ~3k but only makes 240kw on 18psi, so if I can get 40kw over that with the same response, holy shit!

What are the main engineering differences with this turbo over previous designs ?

Edited by Rolls

Always watching Stao's progress, keep up the good work mate.

full boost at 3k and 280rwkw+ may be possible as thats exactly what I have now... just with a Garrett stamp and a slightly higher price tag.

Always watching Stao's progress, keep up the good work mate.

full boost at 3k and 280rwkw+ may be possible as thats exactly what I have now... just with a Garrett stamp and a slightly higher price tag.

Dyno sheet please

Always watching Stao's progress, keep up the good work mate.

full boost at 3k and 280rwkw+ may be possible as thats exactly what I have now... just with a Garrett stamp and a slightly higher price tag.

NA + turbo does not count.

Nope - nothing special, no E85.

tuner said not much difference between what he has seen with normal turbo motor and the slightly higher compression NA with my turbo.

post-36975-0-79536600-1311255089_thumb.jpg this was with an electronic boost controller

post-36975-0-72596700-1311255208_thumb.jpg this was with a bleed valve

Decent power for the street, very useable... as soon as I touch the accelerator I get boost..

What turbo?

edit: just saw your post, how on earth do you get a GT3076 on boost by 3k? Most people are seeing 3.5 to 4k ? Was that with some ridiculous ramp rate?

Edited by Rolls

What turbo?

edit: just saw your post, how on earth do you get a GT3076 on boost by 3k? Most people are seeing 3.5 to 4k ? Was that with some ridiculous ramp rate?

The two runs are not equal... There must be some decent load and hold time on the EBC run as it starts at 9psi at about 2500rpm. A normal dyno run should start at around atmospheric pressure.

Second graph looks much more genuine with 18psi at 3500rpm which is pretty much what is expected from a GT3076R with a 0.63 :)

Edited by SimonR32

Its a good result :thumbsup: , high comp engine with adjustable cam gears would make a turbo spool earlier. Plus different dynos with different sittings would read differently. Compare to one of my earlier runs using the same dyno:

RB25DE high comp, adj cam gear, 3076 .63 ext gate, with a bleed valve

post-36975-0-72596700-1311255208_thumb.jpg

Standard RB25DET motor, stock head, ATR43G3 int gate, with Bleed valve. My run ended early due to misfire while still making 294rwkws.

post-27032-0-82969500-1311261862_thumb.jpg

They looks similar in terms of Power VS Response VS KM/H. But I know the SS-1 PU is more responsive. :yes:

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

    • Hows your intake piping? Are you still running stock? Having in the stock AFM position would mean, if the BOV was shut/venting out, it'd create the almost stalling kind of effect right // "the rich pulse behaviour" due to MAF thinking air is flowing ? But this would be better than having the bov in the stock position + MAF on/just before cross over piping right?
    • Essentially, yes. Although I wouldn't put the AFM on the crossover pipe. I'd want to put it into what amounts to the correct size tube, which is more easily done in the intercooler pipework. I bought a mount tube for card stile AFM that replaces the stock AFM - although being a cheap AliExpress knockoff, it had not flange and I had to make and weld my own. But it is the same length and diameter as the stock RB AFM, goes on my airbox, etc etc. I don't have a sick enough rig to warrant anything different, and the swap will take 5 minutes (when I finally get around to it and the injectors & the dyno tune).
    • So to summarise, the best thing to do is to move recirc to between turbo and IC, and maf on the crossover pipe. Meaning I'd need a recirc flange, drill a hole in the piping on turbo outlet area. And drill hole on crossover to fit/weld maf sensor? Either that or put the MAF on the turbo inlet right?  Is an aftermarket recirc/blowoff valve recommended? Do currently have family in Japan so could probably bring something back with maybe a cheeky lil SuperAutobacs run?
    • Yep, so far most have said that it looks like corrosion on the wall from piston not moving. Which then has probably damaged the oil rings and caused those vertical marks. The longest the engine was still after the rebuild, was the winter of 2018 - 2019, plus the boat trip to Japan. When I shipped the car, it had normal gas in the tank but before that winter pause, it had E85 in tank.  In any case, even if either one of those was the cause, it happened close to 6 years ago and the car has been driven something like 30 000kms after the fact. Again, apart from the plugs and the dip stick, there is nothing in the way the car runs that would indicate what has been going on in the engine. I am going to consult a shop and ask their opinion, what would be the best approach. I do have some access to a garage I could use to diagnose further myself, but time is very restrictive. Might end up buying another engine that could be used while this one is being remedied. Without pulling the head, it will be impossible to find out if it needs another bore, but here's to hoping a hone would suffice.  Goddamnit, I would really have preferred this not happening.  
    • Boot is going to be replaced eventually. I just wire brushed what I could and rust converted. Then painted in rust kill primer. the spoiler also got repainted and plugs replaced on the ends. The under side of the bonnet is going to be black also, currently white. But red on the top side, same colour code as the silo to begin.
×
×
  • Create New...