Torqstorm.. let's see how it does
I've been fighting an odd stumble at higher rpm. Not as bad in first and 2nd gear (still noticeable).
Best run at 5000ft was 10.78@127 wot high gear .79/.80 lambda. then it just got worse and worse.
I've thrown jet at it, made it worse. Took a bunch of jet away, smoothed out a little but then still stumbled higher rpm. Put the jets where it seemed happiest until the lean out. I can see/feel an obvious lean out as soon as I hit high gear at wot. Enough that I just let off. .90 lambda when it laid over and I let off. It is not an instant lean out, it will stay at .75 lambda for a second and then just acts like it ran out of fuel.
I fear I've reached the limit of my fuel pump and e85.
Needle and seats are ss .120 single needle bowls
83/95 jets (Eric at hpi sent it with 81/95)
Quickstar 300 pump -8 pushlok from tank to regulator at carb, -6 pushlok to each bowl.
I figured this would happen doing my bench racing in my head.
So I'm thinking about a prostar 500 pump, -10 to pump, and the same -8 after. Maybe going g from a .120NS to a .130 or .150. But I have heard the .150ns does some funky things with pressure.
I've been fighting an odd stumble at higher rpm. Not as bad in first and 2nd gear (still noticeable).
Best run at 5000ft was 10.78@127 wot high gear .79/.80 lambda. then it just got worse and worse.
I've thrown jet at it, made it worse. Took a bunch of jet away, smoothed out a little but then still stumbled higher rpm. Put the jets where it seemed happiest until the lean out. I can see/feel an obvious lean out as soon as I hit high gear at wot. Enough that I just let off. .90 lambda when it laid over and I let off. It is not an instant lean out, it will stay at .75 lambda for a second and then just acts like it ran out of fuel.
I fear I've reached the limit of my fuel pump and e85.
Needle and seats are ss .120 single needle bowls
83/95 jets (Eric at hpi sent it with 81/95)
Quickstar 300 pump -8 pushlok from tank to regulator at carb, -6 pushlok to each bowl.
I figured this would happen doing my bench racing in my head.
So I'm thinking about a prostar 500 pump, -10 to pump, and the same -8 after. Maybe going g from a .120NS to a .130 or .150. But I have heard the .150ns does some funky things with pressure.
