Pro charger and carb Info
#11
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Only problem i see with the hat, is on high boost setups, you really need to mount the hat straight on. Meaning the inlet should face the front of the boat. My buddys setup would make one bank run a bunch leaner than the other bank. Probably not an issue with lower boost, and a spacer between the hat and carb can help that out a bit. I think the hat is the way to go.
#12
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Not saying it can't be done but if it was my hard earned money on a forced air motor I would want to get the tune as close as I could on a dyno and then re-tune in the boat using afr and plug readings. Afr's are great but they don't tell you what each individual cylinder is doing. I would also want a hat as opposed to a box not just for tunning but if you had an issue down the road like stuck float or something it would make life alot easier.
#13
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The hat is not "legal" on a boat..only the box with a carb, I ran this setup for 2 seasons, had Patrick @ prosystems build me a carb, was spot on out of the box, the box is a royal pain in the a$$ to deal with as you need to remove the top to make any adjustments, also need to remove carb to remove bowls, the issue that I kept having was carb flooding when coming off plane, had to cycle the fuel pump(elec) off for a few seconds to get by with the issue...switched to our own EFI and never looked back...performance is ok with the box though...good luck
#14
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The hat is not "legal" on a boat..only the box with a carb, I ran this setup for 2 seasons, had Patrick @ prosystems build me a carb, was spot on out of the box, the box is a royal pain in the a$$ to deal with as you need to remove the top to make any adjustments, also need to remove carb to remove bowls, the issue that I kept having was carb flooding when coming off plane, had to cycle the fuel pump(elec) off for a few seconds to get by with the issue...switched to our own EFI and never looked back...performance is ok with the box though...good luck
#15
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Only problem i see with the hat, is on high boost setups, you really need to mount the hat straight on. Meaning the inlet should face the front of the boat. My buddys setup would make one bank run a bunch leaner than the other bank. Probably not an issue with lower boost, and a spacer between the hat and carb can help that out a bit. I think the hat is the way to go.
EZ. This is also correct, the hat isn't certified by the coast guard.
Said engine is a forged 355 sbc. Going to run about 10-15 lbs through it. Just trying to get a good idea.
As always thanks for the info. I am running a procharger on my vehicle, but it is EFI, not carbed, so would like to get as much info on a carbed set up as we can. Been doing a bit of reading about it aswell. Thanks
John jr
#16
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Going to run a pro charger with a carb box.Not a blow thru hat.Do the guys that are running this set up use, besides a boost gauge are you running a AFR gauge.Little confused on this matter could someone clear this up.Is there any off the shelf carb set up for use in a pro charger box.Any help would be appreciated. Thanks JOHN SR
#17
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I just pulled a pro charger blow thru 555ci engine off the dyno , used a CSU blow thru carb , they are the blow thru guys , took a lot of tuning !! , 23 pulls , jetting went from 76 to 92 in the rears , 10 air bleed changes , fuel system mods , went from 650 hp with a blow thru efi merc system , To the carb blow thru making 821 hp- 867 tq @5000, 4-5 psi of boost , 93 pump, a/f 11.9 , bsfc# 48.idle at 900. also we went away from the box system becouse of the problem jetting and if it floods over , you have a bomb . should be up on the website soon www.thunder-boats.com Bobby
#18
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I just pulled a pro charger blow thru 555ci engine off the dyno , used a CSU blow thru carb , they are the blow thru guys , took a lot of tuning !! , 23 pulls , jetting went from 76 to 92 in the rears , 10 air bleed changes , fuel system mods , went from 650 hp with a blow thru efi merc system , To the carb blow thru making 821 hp- 867 tq @5000, 4-5 psi of boost , 93 pump, a/f 11.9 , bsfc# 48.idle at 900. also we went away from the box system becouse of the problem jetting and if it floods over , you have a bomb . should be up on the website soon www.thunder-boats.com Bobby
#19
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I run a M3 only 5-6psi as of now, I talked to Patrick @ Prosystems, he did not want me to run without a box, as he felt there was not way to keep from blowing a small amount to fumes out thru the throttle shafts and in a enclosed engine compartment...not good...