General speed increase with 5 lbs of boost
02-26-2003, 04:53 PM
#1
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General speed increase with 5 lbs of boost
I realize this is a broad question with many variables but I just would like to hear some real world speed increases via supercharging.
If you care to share your gains it would be interesting.
If you wouldn’t mind, list your before and after speeds and also the boat size along with the boost level.
Just curious
Thanks,
Dave
If you care to share your gains it would be interesting.
If you wouldn’t mind, list your before and after speeds and also the boat size along with the boost level.
Just curious
Thanks,
Dave
02-26-2003, 05:01 PM
#2
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12 mph
Engine was a crate 502. Blower was a twin-carb 250 running 3-4lbs.
Boat was a 1989 Formula 242.
Going from single-carb 174s to double carb-250s on my current boat (1990 Cafe Racer) I picked up 9 mph.
Engine was a crate 502. Blower was a twin-carb 250 running 3-4lbs.
Boat was a 1989 Formula 242.
Going from single-carb 174s to double carb-250s on my current boat (1990 Cafe Racer) I picked up 9 mph.
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Steve Gresham
'03 Donzi 33ZX
Steve Gresham
'03 Donzi 33ZX
02-26-2003, 06:49 PM
#4
Ginger or Mary Ann?
Charter Member
27' Fever. HP465 pre blower
24" 69-70mph 5200rpm.
With blower at 5#,
27" hydro, 83mph@5500
24" " 79mph @ 5700
24" 69-70mph 5200rpm.
With blower at 5#,
27" hydro, 83mph@5500
24" " 79mph @ 5700
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Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
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03-01-2003, 09:03 AM
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Go for it Capo, you'll love it. Put mine on myself working slowly over about 6 days while I was waiting to get reprogramed ECU back from Whipple. Fired right up on the hose with no problems - took it to the lake and ran great right out of the box - no dialing in other than getting the right prop size. Has run great for 2 seasons - sounds like an F-16 when you get into boost and it throws you back into the bolsters. Yet gets better mileage when out of boost than before - you gotta love that.
