Gas Tanks, Do I Really Need Two???
11-23-2008, 01:56 AM
#1
Registered
Thread Starter
Join Date: Oct 2008
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
Gas Tanks, Do I Really Need Two???
I'm still at the research end of my project and I see that my front tank is 55 gals, I'm sure the other tank must be about the same. My questions are 1, if I decide to only use one tank which of the two should I use. I'm concerned about the fact that I'll being using slightly modified 89 200 Johnsons with about 12" of setback and I don't know how it will plane-off and also which tank would give me the best results factoring in such varibles as lift, speed, planning off, and basic handling?
2nd, Is worring about this overkill and not worth the trouble? Being I'm moving the bench seat back anyway it doesn't look like removing the back tank is too hard of a job. I think the front tank would be a lot harder to take out as it looks like the front bulkhead is in the way and the floor is over it?
3rd, I will keep in mind that a lot of people, if I ever sell the boat, may see having only a 55 gal tank as a negative.
PS, I'm pretty sure I willn't remove the second tank but as I always say the only dumb question is the one you never ask!
2nd, Is worring about this overkill and not worth the trouble? Being I'm moving the bench seat back anyway it doesn't look like removing the back tank is too hard of a job. I think the front tank would be a lot harder to take out as it looks like the front bulkhead is in the way and the floor is over it?
3rd, I will keep in mind that a lot of people, if I ever sell the boat, may see having only a 55 gal tank as a negative.
PS, I'm pretty sure I willn't remove the second tank but as I always say the only dumb question is the one you never ask!
11-23-2008, 08:50 AM
#2
coolrunning racing
VIP Member
question? Is there a tank hatch in the cockpit floor? I think the tank that will fit in there is 70 gallons. Food for thought, the power will eat an estimated 10% rated horsepower in fuel at WOT. So twin 200's = 40 GPH @ WOT.
11-23-2008, 11:02 AM
#4
Registered
Thread Starter
Join Date: Oct 2008
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
Yes on the front one, looks hard to remove, the back will be wide open once I tear up the bench seat.
11-23-2008, 01:39 PM
#5
Registered
Gas tank location
I had a 1980 BANANA, had a 55 gal. tank under the cockpit floor, unfortunly the hatch was app. 3" narrower than the tank. When I raced I installed another 55 gal. tank forward of it just inside the cabin door, had a single 280TRS for power. On my present boat, 27' MAGNUM there are 2-50 gal. tanks under floor, being an O/B , I installed 2- 36 gal. tanks aft of these where the motors were ! Balance is very good. Sometimes you need the weight forward in big seas. Works for me. HIGH LIFE
11-23-2008, 03:37 PM
#6
Registered
Thread Starter
Join Date: Oct 2008
Posts: 67
Likes: 0
Received 0 Likes
on
0 Posts
I had a 1980 BANANA, had a 55 gal. tank under the cockpit floor, unfortunly the hatch was app. 3" narrower than the tank. When I raced I installed another 55 gal. tank forward of it just inside the cabin door, had a single 280TRS for power. On my present boat, 27' MAGNUM there are 2-50 gal. tanks under floor, being an O/B , I installed 2- 36 gal. tanks aft of these where the motors were ! Balance is very good. Sometimes you need the weight forward in big seas. Works for me. HIGH LIFE
Thanks!
11-24-2008, 05:46 AM
#7
Registered
My old race boat had two tanks, one forward on the center line and one aft under the cockpit floor. We burned off the front tank first to get more weight shifted to the rear of the boat.
Our races back then would be more than 100 miles and I was using two 400HP small blocks on TRS drives, so we needed the range.
Our races back then would be more than 100 miles and I was using two 400HP small blocks on TRS drives, so we needed the range.
