View Full Version : chev 4.3 and American Turbine
fstone
11-01-2005, 04:32 PM
Does anyone have any first hand experience in a 18-20 foot aluminum boat powered by a 4.3 Liter v-6 Chev and American Turbine pump? I expect average out of the hole and top speed of 43-44 mph? With average to good fuel economy.
Use will be lakes and puget sound, so I "think" I do not need a v-8.
Thanks in advance for your 2 cents, which may save me thousands down the road.
I had that combo in my 18' Weldcraft Renegade. Great for the 18" boat and 200 pounds lighter than the v8. easy on fuel, if if did not need a bigger boat I would still have it. Now I have 22' and a 350 with a hamilton 212
Jet~~~
fstone
11-01-2005, 05:58 PM
Thanks Jet for the info. One of the mechanics was not too supportive of AT, but the sales guy pitch was that AT was good for the smaller boats. The bigger, heavy boats Hamilton was the best option.
Thanks again, I appreciate it.
WaterDog
11-01-2005, 06:14 PM
As long as you not loading the boat down you'll be fine. Something to concider is that a modern V-8 that's fuel injected with the proper pump and impellor(s) gets pretty decent economy.
Good luck in your search. :cheers:
Rich, remember that was the boat that you and BOE and I fished the derby in not bad for 2 big boys, one small boy and a days worth of junk.
Jet~~~
WaterDog
11-02-2005, 06:15 AM
Yup, not bad at all. I'm not as big as I used to be, maybe that's why I'm carrying more stuff with me. :wink:
troutdaddy
11-02-2005, 05:04 PM
Got a CW 18 ft, 11 degree, 6 ft bottom, high deck in rear. Luv it. usually 2-3 guys, 30 ish gals of fuel and gear, 4.3 injected with AT pump and SDR bucket. GPS flat water top speed @ about 4200 RPMS= 42.9, cruises 3250-3300 RPMs @ 29-30 ish, on plane quick tame noise at cruise, not sure about gas use? Runs fine on lake and in 4-5 inches pegged.
http:://i4.photobucket.com/albums/y142/troutdaddy/116-1613_IMG.jpg http://i4.photobucket.com/albums/y142/troutdaddy/116-1614_IMG.jpg :cheers:
fstone
11-06-2005, 01:25 PM
Nice... she will getter done.
Gundog
11-06-2005, 01:35 PM
troutdaddy,
That is a sweat ride.
Mike
troutdaddy
11-06-2005, 06:08 PM
Thanks GDog :wink: I looked long and hard before going with CW, the boat works as good as it looks.
troutdaddy
11-06-2005, 06:26 PM
GDog, a little more eye candy :bigshock:
http://i4.photobucket.com/albums/y142/troutdaddy/114-1461_IMG.jpg
SR1 5
11-07-2005, 08:41 PM
I have that combination in an 18 foot boat that works great for me. Like Waterdog said, as long as you don't need to carry big loads it will work fine. Your speed estimation is correct for wide open throttle and I burn 8.5 gph of fuel at 3400rpm cruise according to my fuel flow meter. The carburated models have an inherent problem of dieseling when they are shut off but by setting the idle as low as possible,making sure the timing is set right(2 degrees as apposed to 8 degrees for fuel injected models) and using plus or premium gas has solved that problem for me
Tacklebuster
11-08-2005, 09:04 AM
Great motors... I had one in my Renegade. It had plenty of power and was "easy" on fuel for powering a pump. I had the AT pump and the only problem I had with the pump is the lower steering pin fell out one day while on the water :redface: The only down size to the carbed motor is the dieseling. Run premium fuel from a quality station and set the idle as low as possible. You still need to have your hand on the key every time you shut her down though.
fstone
11-08-2005, 02:56 PM
So, maybe the non-carb option should be considered; more horse and better efficiency. Does anyone have a history with that option?
Again, thanks for all your help.
Troutdaddy – how do you like your electric motor? Details please.
Do you run a kicker also?
Thanks.
troutdaddy
11-08-2005, 07:14 PM
fstone,
I liked the efficiency, sure start and engine mgt. on the fuel injected motor (also-plug in diagnostics)-extra hp doesn't hurt either. I also understand that carb deiseling can be minimized/eliminated by having higher risers, exhaust turn-downs etc.-If thats your thing (not for me). The electric is a MinnKota 12V 55 lb. thrust powerdrive w/co-pilot. I use it to control my drift while floating downstream on the river, chasing schooling Stripers on the lake, etc. Works well, but not enough to go upstream in heavy current. I just turn on the main (not worth an extra fifty pounds of batteries)I also added a Kippawa prop-luv it! I don't really have the need for a kicker to justify the extra weight, cost, and performance issues. private email me if you want to have a phone conversation :cheers: http://i4.photobucket.com/albums/y142/troutdaddy/114-1458_IMG.jpg