Blow Through Carburetors
#1
Blow Through Carburetors
Has anyone had real world experience with a blow through carb on a pleasure boat ?
It's always been my understanding that fuel injection IS the way to go with a Procharger, as a carb can only be satifactorily tuned for WOT and is a compromise everywhere else...
But what about CSU, C&S, Pro systems, or Nickerson?
Has anyone figured out how to get good drivability out of one ?
Thanks,
Doug
It's always been my understanding that fuel injection IS the way to go with a Procharger, as a carb can only be satifactorily tuned for WOT and is a compromise everywhere else...
But what about CSU, C&S, Pro systems, or Nickerson?
Has anyone figured out how to get good drivability out of one ?
Thanks,
Doug
#2
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I have a Carb Shop blow thru and love it on my Cobra. (I know, not a boat) The only issue (which would be less noticeable) is the transition from vacuum to boost. This probably wouldn't be noticeable on a marine environment because of a higher load. Actually for idle and WOT it's perfect. I sometimes wish I could fine tune cruise mixture A/F. Very easy to tune though.
Cobra II - YouTube
Cobra II - YouTube
#3
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I have a C&S blow thru carb on a procharged 510 bbc in a customers boat. I did the final tuning on it and the thing runs great at every rpm. who ever said a carb can only be tuned for WOT does not know how to tune one. if you are looking for a precise AFR at every 100 rpm then yes EFI is better but a properly tuned carb can make as much or more power than EFI.
#4
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for marine application c&s is the way to go.i recently did some m4 procharged engines that origionally had pro systems carbs and i could not make them work right down low no matter what i did.we had roger from c&s carbs make some for these engines and they were close right out of the box.a few hours on the dyno and a few calls to roger and we had perfect afr,s at every rpm level.these carbs were not cheep,but still about half of what efi would have cost.
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Ive got a c&s carb on my 502 that has an m3 procharger. I haven't dumped the boat in the water yet but it's very crisp running on the trailer. I'm looking forward to seeing how the boat does. Personally, I'm really impressed with c&s's work so far and the carb looks very trick!
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C&S aerosol carb is the way to go period.i set the carbs up so all 4 open at once so you get the correct fuel mixture to all cylinders..they make more power on the lower rpm this way also..
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for marine application c&s is the way to go.i recently did some m4 procharged engines that origionally had pro systems carbs and i could not make them work right down low no matter what i did.we had roger from c&s carbs make some for these engines and they were close right out of the box.a few hours on the dyno and a few calls to roger and we had perfect afr,s at every rpm level.these carbs were not cheep,but still about half of what efi would have cost.
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Dou you have try this open all 4 corner at once on top of roots blower? Good or bad thing to do on roots style?