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Re: My draw through turbo

Posted: Thu Feb 21, 2019 3:55 am
by 66brm
An a/f meter only responds to the level of oxygen in the gases and converts it to a ratio of air to fuel

Re: My draw through turbo

Posted: Thu Feb 21, 2019 4:03 am
by advinnie
OK so how am I richer in the cruise, how can I swap thi gs around?

Re: My draw through turbo

Posted: Thu Feb 21, 2019 4:05 am
by madmike
Don't know about fuel over their but here we have "winter grade fuel they shove down our throats cuz the new cars 'start better' that 'maybe it'?

Re: My draw through turbo

Posted: Thu Feb 21, 2019 4:13 am
by advinnie
Really winter fuel we don't have that at all.

Re: My draw through turbo

Posted: Thu Feb 21, 2019 5:41 am
by madmike
no clue ? maybe the fuel pressure went up, that happened to me once.

Re: My draw through turbo

Posted: Fri Feb 22, 2019 6:08 am
by advinnie
Well that bargain MSD 6a box buy I got of eBay wasn't su h a bargain in the engine it has all ready stopped working 😭😭😭

Re: My draw through turbo

Posted: Fri Feb 22, 2019 6:30 am
by buguy

Re: My draw through turbo

Posted: Fri Feb 22, 2019 6:49 am
by advinnie
😂 😂 Cheers mate

Re: My draw through turbo

Posted: Fri Feb 22, 2019 11:54 am
by andy198712
sounds like your main circuit is too lean and your pilot circuit is too rich, does it have a AC pump squirting in fuel when you mash the throttle ? that lean spike is too little squirt.

i don't know about your exact carb though but that's the general stuff.... if it helps

Re: My draw through turbo

Posted: Sat Feb 23, 2019 4:20 am
by advinnie
Yes mate that helps.
I've now increased the pump jet size and lean spike has gone 👍
The main jets have been increased one size and that's now good 👍
But and it's a big But I can nit decrease the idle jets any more if I do the engine will not run at all, even with the mixture screws all the way out she runs so lean she just stalls,

Re: My draw through turbo

Posted: Mon Feb 25, 2019 4:07 am
by madmike
I know I replied to this ? my reply is nowhere to be seen :roll:
bummer on the MSD box , I send them to back to MSD in Texas , most of the time it's only $45 to fix them :wink:

Re: My draw through turbo

Posted: Mon Feb 25, 2019 5:29 am
by advinnie
Hi madmike, I'm in the UK so I'm guessing pay the time I've paid postage and packing each way it would be cheaper to buy a new one 😞

Re: My draw through turbo

Posted: Tue Feb 26, 2019 5:21 am
by madmike
In that case , Maybe a local radio/TV repairman ? can't be that hard to fix? :lol:

Re: My draw through turbo

Posted: Tue Feb 26, 2019 6:36 am
by advinnie
😂 😂 😂 My bug (Blue Thunder) has just won a place in the volksworld show stand at one of the UK'S biggest shows

Re: My draw through turbo

Posted: Tue Feb 26, 2019 6:37 am
by advinnie
Can't believe it