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Rb25de (supercharged) Project

r33_racer
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FineLine
FineLine

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

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r33_racer Grand Master

r33_racer

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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

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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

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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

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