Jump to content
SAU Community

Rb25de (supercharged) Project

r33_racer
 Share

Recommended Posts

  • Replies 548
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

FineLine
FineLine

Starts taking bets on how long it will take before this one is gutted and caged too.

Posted Images

r33_racer Grand Master

r33_racer

Posted
  • Author
Posted

haha I'm here! Yeah, Noel and Mike are spot on. Im stretched a little thin atm. However I have fixed the issues I had on the dyno the first time. Its just a matter of getting time to go back to finish off the tuning. Currently fabricating a whole exhaust system on my old mans HR holden w/ stroked LS1 to 383CI, then I have my uncles 56' chevy to fit new 434CI stroked small block into and fab up exhaust system and fuel system. After that is Dads 57' chevy which a 632CI BBC with a 4L80e box to go into it and then exhaust system and fuel system to suit. The two Chevy's need to be done before April for a charity event we were hoping to attend at Harry's.

So my car has gone on the burner again until further notice unfortunately! If I get some time in the next couple of weeks I will attempt to get it tuned!

  • 8 months later...
r33_racer Grand Master

r33_racer

Posted
  • Author
Posted

Sorry to say fellas that I ended up quitting on this. I did finish it and got it all going, but it was an absolute pig to drive. I couldn't get the change over from off boost to on boost with the bypass valve to work very well. I spent a fair bit of time trying different valves and setups trying to make it more drive-able. It was just taking too long to try and get it to a level where I would be happy with it.

My apologies for the disappointment peoples! If I had more free time and absolutely no social life or girlfriend then I would attempt to perfect it all, but this is just not feasible. I really hate to be a quitter...its killed me a little on the inside not being able to get it all to work how I was hoping. :(

Anyway. the car is on the back burner at the moment. The back up plan is to go to a big single and just pump out some laggy horsepower for fun.... of course when time presents itself!

Rolls Grand Master

Rolls

Posted
Posted (edited)

How does every other supercharger in the world work then, they don't seem to have any fancy things to make them idle ok, do they all just have a low speed air bypass valve or something?

Even if you just wired a recirculation line with a very small bore eg 1/2 inch from the intake to the discharge this would recirculate air at idle and at high boost would only recirculate a little bit.

Edited by Rolls

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

    • DraftySquash
      Help Understand GTT Boost Setup

      By DraftySquash · Posted

      It was roughly 3.5 hours.    car went in around 11:00 and I was done around 2:30 He did the initial runs, install the BC and then Nistune install and tune.  The best part was sitting in the lobby and hearing the skyline on full throttle at the dyno 😂😂
    • Milkmun
      Help Understand GTT Boost Setup

      By Milkmun · Posted

      Glad it all went smooth. How long did the tuning process take?
    • DraftySquash
      Help Understand GTT Boost Setup

      By DraftySquash · Posted

      Yeah that was kind of the same feedback my tuner gave me.  the boost tee is until I can sort out my plan for the electronic boost controller and what I’d get, where I’d mount the dash etc.  I’m happy with this until I can figure it out. Not a big fan of the A-pillar gauges. I’d like to get a clean install of the boost gauge - something digital like GFB.  Something like that might fit neatly where the ashtray is and look clean. I feel like replacing the OEM triple gauge is a bit extreme for a weekender like my skyline. And it’s not making crazy power to need all the additional sensors/gauges. 
    • B-Boi34
      UniClutch

      By B-Boi34 · Posted

      I'm about to swap my box to Tremec T56 Magnum F & initially thinking of re-using my DCS twin plate (can get it re centred for the bigger spline) but it's been called out the box will be noisy (rattle) as the clutch is unsprung.  So I'm doing as much research as possible. I'm not so worried about holding the power as I'll go the track version which on paper will hold the maybe 1000hp I make. It's the longevity I worry about. DCS told me they don't use a sprung centre as it's just something that can break. The uni clutch has a very complicated sprung centre. Any one had or heard about any issues with it failing? Thanks in advance.
    • Kinkstaah
      Help Understand GTT Boost Setup

      By Kinkstaah · Posted

      Auto is at least 10% (from my real, actual experience with different torque converters and manual on the same setup) ~185rwkw at 11.6psi (peak!) is entirely what one would expect without a FMIC or anything else on the intake, it does bleed off towards the higher RPM so it's what, 9psi there? Note: There is nothing that can be done about this with a manual boost tee. If you want to hold it steady and gain more top end, well - You will need electronic boost control.....
×
×
  • Create New...