anyone able to tell me what the largest cylinder gunnel tank a 18' 76 rogers bonneville can take & retain the stock seats. i'm having a guy make me some aluminum tanks , but i need to tell him dimensions.
I fit 8" tanks in my 1976 super cyclone, but I had to notch the seat about 1"for the tanks to clear. I just notched the wood and stapled the cover back to the seat and you cant tell that it was notched. Make sure that the fuel fills are off set on the tanks. I bought a set of 8" tanks and moved the fuel fills towards the outside of the gunnels and they work great and line up on the original fuel fill holes.
Imco used to make the tanks for Roger. I removed the steel tanks from my '76 Bonneville and brought them to Imco. They still had the pattern. Have them knock off the rear corner top side of the tank cause they are really close to the side of the hull. They also installed 1/2" siphon tubes and made a few modifications per my request. Tanks fit perfect and were very well made.
I just had IMCO build tanks for my 18' rogers last fall. they still have the patterns.I did have them take off 3/4 of an inch off the front top and the top of rear. I cut out some cardboard patterns to his size and they seemed to be to wide and would be tight fitting to the seat and would rub on the inside of the hull he made them narrower for me and the fit just fine. I think I payed $850 to my door or maybe a little more.
Last edited by almost busted; 10-16-2012 at 03:24 PM.
thanks bigdog. great thinkin on the seats ,that kinda opens things up! how long are your tanks ? do you ever wish they were bigger?
I think that mine are 52" long if I remember correctly. Mine are 10 gallons and that seems to work good, but where I boat we launch right where we run. I suppose that if you have to go up river to boat you might want bigger tanks.