Injection timing?

[sdturbo]

I put a gauge on it this morning and fuel pressure is high... ~70psi at 750rpm and goes to 100psi quickly. The 1.6 info I can find looks like 44psi at 1000 rpm. Guess I will play with it but it sure is a pain to adjust.

[ngoma]

Originally Posted by sdturbo

Base timing jumped to 17 and it it only goes up a couple degrees when I rev it.

How do those numbers compare to your other IP you measured?

[sdturbo]

I set the pump to .090. With the pressure under 70 at idle it at about 12 degrees. Over that pressure it gets into dynamic advance at idle.

I just did a bunch of pump tuning and it has picked up a good deal of power. I am not happy with the higher than stock fuel pressure and while it does advance a few degrees it seems to stop at 15 degrees of total timing. I think the dynamic advance might have another issue that the increased pressure is compensating for.

I really have gained a lot of understanding of these pumps since owing this thing. I really need to get my hands on one to go through. Its just too hard for me to mess with this one due to its location on the land rover.

[sdturbo]

Results after the weekend desert trip. When I left the shop it was running the best it ever has. Lots of power and no smoke. I got the best mileage I ever have out of it but on the way back it really took a dive. The timing seems to be all over the place, it goes from fine to a good diesel knock sound and white smoke under power. Something is just not right with this pump. Not that I have had a taste of what it could become I really need to get my hands on a 2nd pump.