Jump to content
SAU Community

New Rb26 Vcam In-Let Setup $3000

fatz

By fatz,
in Group Buys

 Share

Recommended Posts

  • Replies 74
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

GTRsean
GTRsean

I just bought the stage 1 otomoto kit for my 2.8 'baby' stroker with -5's. I staying with 98 octane pump fuel so I'll need all the help I can get out of my 'street' setup. I have a couple of neo vct

GTRsean
GTRsean

So this is the latest. Got sick of waiting for months for my replacement head to come back from a business I tasked with machining for bigger intake valves and port clean up, so I'll be leaving the ol

chalon
chalon

I bit the bullet and went ahead with it: http://www.sau.com.au/forums/topic/251820-got-over-400kw-atw/page-164#entry7633312 Have to sort out my clutch before I can wind the boost up again

Posted Images

  • 2 months later...
GTRsean Grand Master

GTRsean

Posted
Posted

I just bought the stage 1 otomoto kit for my 2.8 'baby' stroker with -5's. I staying with 98 octane pump fuel so I'll need all the help I can get out of my 'street' setup.

I have a couple of neo vct units and a neo solenoid laying around from my 'poor mans' v cam idea, so they will be perfect for this kit.

I'll try to get some results/comparisons once I've fitted it. I'm running a PFC so I'll most likely go a jaycar style rpm switch controller to control the solenoid.

  • Like 3
Link to comment
Share on other sites
  • 1 month later...
  • 2 months later...
GTRsean Grand Master

GTRsean

Posted
Posted

So this is the latest. Got sick of waiting for months for my replacement head to come back from a business I tasked with machining for bigger intake valves and port clean up, so I'll be leaving the old one on. It's already lightly ported and has aftermarket springs/retainers.

After 11 years of running GTR's and twin turbo's I'm going single heheh.

Also got a haltec plat ecu so that will control the vct solenoid.

post-12712-0-13048300-1448962005_thumb.jpgpost-12712-0-56213000-1448962015_thumb.jpgpost-12712-0-05462400-1448962030_thumb.jpgpost-12712-0-33919400-1448962043_thumb.jpg

  • Like 2
Link to comment
Share on other sites
  • 2 weeks later...
  • 1 month later...
  • 3 months later...
GTRsean Grand Master

GTRsean

Posted
Posted

So got it tuned with a t51R first= lag monster but was sorta driveable. Sounded awesome revving to 9k rpm...plus screamer heheh, 550WHP @20psi.

Then went back to -5's and got it tuned again. Wow midrange is great and pulls well from down low! (stroker helps there)

What I've found and Yavus at Unigroup already knew is that the 260deg intake cam supplied by otomoto is too big in duration.

I ended up switching off vct at 7000 rpm as that is where it starts to drop off. So (in theory) you could leave a 260 deg cam for example at 20 or so degress advanced on you adjustable cam gear and only nose over after 7000rpm lol!

Max I rev my setup to is 8-8500 rpm so you get 1000-1500 rpm of extra power for $3000...

They need to (otomoto) sell an intake cam that has a shorter duration of say 242-248 degrees to bring down the switch over point and move the whole graph to the left a bit more :)

More development necessary before I'm 100% happy with setup, but in the mean time, in short it's a beast heheh.

I'll post a graph up soon. Don't worry about HP as dyno is a tuning tool heheh. I'll have to take it down the strip to see what MPH it pulls :)

  • Like 1
Link to comment
Share on other sites
  • 2 years later...
  • 4 months later...

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

    • MBS206
      MLR's Bogan cruise ship

      By MBS206 · Posted

      Ha ha ha, I read that he had it based on brownie points so knew it wasn't going to be sold   I also am only shit stirring on buying, while they'd all be great cars, I don't need more, I actually sold one a few weeks ago. And immediately bought more tools...
    • The Bogan
      MLR's Bogan cruise ship

      By The Bogan · Posted

      I thought you might have asked about the Honda, but as the boy just wrote off his Patrol, and was trying to find a cheap daily to get by with, I decided to give the Honda to him
    • The Bogan
      MLR's Bogan cruise ship

      By The Bogan · Posted

      Axle back, new thermostat and coolant bottle arrived from MX5 Mania, I'm still waiting for Super Cheap to get back to me with my order, once I get everything in my hands I'll take some leave and "play", starting with serving and fitting parts, then detail I honestly think this is the most fun part about getting a new old car
    • MBS206
      MLR's Bogan cruise ship

      By MBS206 · Posted

      In roughly 6 to 9 months time, what mods will you have done, and how much can I buy the car for?
    • joshuaho96
      Yet another clutch question

      By joshuaho96 · Posted

      I haven't been able to try a coppermix twin but I tried a 997.2 Turbo 6MT the other day with a single plate organic clutch that had all the springs removed so it's "for race use" and a stronger pressure plate. Absolutely miserable to drive. I couldn't feel the pressure plate weight because the pedal has hydraulic assist from the power steering pump but the slip point felt like I had to flex my big toe to control it because it was so sensitive. The clutch also shuddered horribly at the slip point. My best guess looking at the previous owner documentation is they tried to resurface the dual mass flywheel due to supply chain issues + used a stupid clutch with no marcel springs or any of the usual tricks that trade burst strength for driveability. I ordered the coppermix twin. Once it gets here I'll try to figure out whether to shop this job out to a local mechanic I can trust or try to DIY it.
×
×
  • Create New...