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Met a fellow BCF'r yesterday

ChrisS

Jedi Knight
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When I was up in Mont Tremblant earlier last week the car was missing intermittently from 6-7K. When I got back to the paddock there my catch tank was full of fuel and there were signs that the rear carb was dripping on the header. It was obvious hat the floats weren't closing the needle valve but I didn't have time to fix it before the last session, although I tried of course. So I rebuild the carbs this week thinking it would fix the miss as well. The Boston area MG club had a dyno day yesterday so I went and met two Paul's from here, Brosky with his beautiful TR6 and Phantomracer with his rolling restoration BGT (he has a restored MGB as well).

When I got on the dyno my ignition system caused so much RF interference that it first shut down the O2 meter (went lean) and then the entire communication stack for the dyno. We shielded enough stuff to stop the dyno from tripping but the O2 meter wouldn't work. The problem was that I had just rebuilt the carbs and was a little hesitant to take it up to redline with an O2 meter that showed lean so we unhooked it from the dyno and I wired up my wide band O2 meter while some other cars went. When everyone else was done I went back on the dyno and dialed in the carbs in but there was still a miss. On a hunch I pulled my rev limiter and the skip went away. Funny, no Lucas problems just that modern crap that I added. All in all a good day and a lot less frustrating than trying to diagnose it at the track.

Brosky on the left.

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Car's looking good, Chris. Funny how it's the modern stuff that causes trouble...

Neat to get to meet folks in person. Proof that the world is a small place these days.
 
Chris,

Glad you worked out the problems. I really thought about driving my B over and fine tuning it on the dyno, but it just wasn't in the cards. With all the work I've done on my engine, I feel I've yet to really unlock it's potential and could use help like that.

So how many ponies did you pull?
 
What made me think your car was Black Chris?
Let me know when you're done with them tires /bcforum/images/%%GRAEMLIN_URL%%/grin.gif
 
I don't know Baz, the track car was blue last year and my street car is green, the only thing black is my truck. I'm waiting on the run files so I can filter the curves but it started at 68 and ended at 75. There was one at 80 but that was noise I suspect. The absolutes don't mean much since dynos vary so much, it is the change that is important. Since it was a group day it is tough to get the dyno operator to change data settings. I am more interested in the torque curve anyways. This is essentially a stock engine bumped to 10.5:1 compression with some casting marks cleaned off the intake runners. Class rules don't allow me to go too crazy.
 
Is that a BCF shirt Brosky has on?! /bcforum/images/%%GRAEMLIN_URL%%/thumbsup.gif
 
An me as well of course. No wise cracks about the forced induction.

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Chris, hope you don't mind, but I uploaded the image as an attachment because it was 1200 pixels wide and was causing the text in all the posts to roll off the right side of my screen.

Basil

PS: If posting an image directly to a post, try to keep the width down to 600 or less wide.
 
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