Fine Tuning a 360 Magnum with a Brawler "Double Pumper"
here's a few on some of the topics
small drill bits will do if you don't have a pin gage set.
https://www.forabodiesonly.com/mopa...-duster-backfire-issue.545100/post-1974388896
https://www.tapatalk.com/groups/racingfuelsystems/viewtopic.php?f=31&t=18
https://www.tapatalk.com/groups/racingfuelsystems/emulsion-tuning-t42.html
if all else fails and you have to use TSRs or shorten the slots
https://www.forabodiesonly.com/mopar/threads/lean-idle-rich-cruise.560447/post-1974694861
But don't start there unless the measurements are really wacked and low speed stuff can't be tuned with normal adjusments.
https://www.forabodiesonly.com/mopa...ccelerator-pump-nozzle.492113/post-1973469374
Make spread sheet or in a word processor listing all of the variables as found.
I also include the variables that get adjusted such as turns out on the mix screws, and idle stop.
So one sheet or one column on the spreadsheet is the factory setup or whatever baseline you want.
Then note every change and have a method to evaluate its effect.
Such as idle speed, how well it handled slipping into first, any issues when slowly opening throttles (by hand) in neutral. If there are issues or its astep backward, then make another change. If it seems OK, try a low speed test drive.
Focus on steady state conditions because they are the baseline.
Here's a blank example of the spreadsheet I use. Not all of it is important but its good to a complete list. Sometimes its handy to know what otherwise seemed unimportant like the numbers on a metering block.
here's a few on some of the topics
small drill bits will do if you don't have a pin gage set.
https://www.forabodiesonly.com/mopa...-duster-backfire-issue.545100/post-1974388896
https://www.tapatalk.com/groups/racingfuelsystems/viewtopic.php?f=31&t=18
https://www.tapatalk.com/groups/racingfuelsystems/emulsion-tuning-t42.html
if all else fails and you have to use TSRs or shorten the slots
https://www.forabodiesonly.com/mopar/threads/lean-idle-rich-cruise.560447/post-1974694861
But don't start there unless the measurements are really wacked and low speed stuff can't be tuned with normal adjusments.
https://www.forabodiesonly.com/mopa...ccelerator-pump-nozzle.492113/post-1973469374
Make spread sheet or in a word processor listing all of the variables as found.
I also include the variables that get adjusted such as turns out on the mix screws, and idle stop.
So one sheet or one column on the spreadsheet is the factory setup or whatever baseline you want.
Then note every change and have a method to evaluate its effect.
Such as idle speed, how well it handled slipping into first, any issues when slowly opening throttles (by hand) in neutral. If there are issues or its astep backward, then make another change. If it seems OK, try a low speed test drive.
Focus on steady state conditions because they are the baseline.
Here's a blank example of the spreadsheet I use. Not all of it is important but its good to a complete list. Sometimes its handy to know what otherwise seemed unimportant like the numbers on a metering block.