Hey LVJETBOY. You seem to have taken issue with my comparrison between the Bahner jet and the Cole V-drive. I guess the only proper way to compare the two types of drives is to have them in somewhat similar hulls
Id agree somewhat. Only issue I had was the accuracy of your comparison. You mayve noticed and Ive posted many times before? I think a prop is more efficient than a jet.
That said I believe hull weight and drag in your Real Difference comparison apples to oranges. If so, that alone tempers your reported wow factor and drive choice worship. Nobodys stepped up and acknowledged yet, but is your Cole tr2 really that much shorter than your Bahner? To some maybe length doesnt matter. But length and weight can make a huge difference at high speed in a small high-performance hull, even with the same hull design. 140 lbs in my jet means 6-7 mph off top speed. Im sorry, havent run the 1/4 mile, but Im sure an extra 140 lbs would also affect my et (for those who choose to focus on et. and the 1/4 mile.)
Hondo even made a Jet flat bottom. Didn't work to well. The V-drive Hondo was way faster.
That may be an example of poor drive-hull application, not proof of value one drive over the other. Maybe Hondos flat bottom design unloaded the jet? My point: you posted The Real Difference. Yet the true difference may be less than you think (ord admit in this v-drive forum) For similar weight hulls and a hull design matched to the propulsion choice. Is a Tr-2 really only 1710 long?
I think the true difference is less than 10 mph. At least in the power range you run. That for equal weight boats with hulls matched to their respective propulsion and equally tweaked setups. You said jets run 65-70 but vs run 80-90? I think thats an exaggeration. If not exaggeration then a conclusion based on limited data and apples to oranges. Ive tracked numbers from both jets and v-drives and if you filter out hp, hull and other BS, difference in performance not that much between the two. Yet there is some.
Oh,and you might want to check out the Bnderlog board. Seems they can't find anyone to bring the Patato Salad for the next outing.
??? I rarely read or post to Banderlog. You should know that because Im not social by nature.
jer
Jer, a basic problem here is the inability to compare hulls accurately. We are compairing flats and hydros to v-bottoms and tunnels. Add in that, flats vary just like tunnels come in different designs. Is it possible to make an exact comparo given these variables?
Still looks like the 650 horse 121 mph "true flat" SS boat has the field covered. IMO
http://www.v-drivevideo.com/jerrysga...Kilo%20001.jpg
http://www.v-drivevideo.com/jerrysga...-70%20Kilo.jpg