Engine mods / pump & injector timing etc

[Anorak_ian]

I've been wondering how to give my engine (rug rd211 twin) a bit more power, looking at the workshop manual I noticed something about the injector settings, distance in the head (from piston), and injector pump settings being shimmed up or down.
This would be for ignition timing right? How can we use this to our advantage?

http://www.dieselbiker.co.uk/non-diesel ... r-pump.jpg

[BertTrack]

Interesting.

What they do is they move the fuel pump closer to or away from the cam moving it. So you change the moment of fuel pressure build up, forwards and backwards.

Since you can't change it on the fly you have to set it right. Because putting it too early can cause serious damage when running in hot temperatures. And putting it too late will cause loss of power.

If the r.p.m you're running the engine with mostly is close to the original design speed then I'd have to say leave it as is.

[Stuart]

An ex employee of an engine development company on the South coast once advised me to turn up the fuelling screw on the RE Hatz 350. A bit more black smoke but it did improve things noticeably.
This might be an easier option?

[Anorak_ian]

Interesting.

What they do is they move the fuel pump closer to or away from the cam moving it. So you change the moment of fuel pressure build up, forwards and backwards.

Like a zit waiting to explode.

Since you can't change it on the fly you have to set it right. Because putting it too early can cause serious damage when running in hot temperatures. And putting it too late will cause loss of power.

If the r.p.m you're running the engine with mostly is close to the original design speed then I'd have to say leave it as is.

It's 150rpm over normal running at the moment.
I'm just thinking about getting a little more out of her without fitting a turbo. Or before fitting a turbo,
With a turbo she could run 600 or maybe 750 over normal revs.

[Sphere]

Why go through the hassle of tuning it twice, I would urge you to get right down to business and fit the turbo

[Anorak_ian]

An ex employee of an engine development company on the South coast once advised me to turn up the fuelling screw on the RE Hatz 350. A bit more black smoke but it did improve things noticeably.
This might be an easier option?

I've been meaning to do this for a while now, but as usual there's more pressing things to do to the bike.

[Anorak_ian]

Why go through the hassle of tuning it twice, I would urge you to get right down to business and fit the turbo

Yea your probably right.
I have another one of these engines for my next bike, and I was thinking of doing the biz to it before it goes in to the frame. Wasting my time even thinking about it probably.