Thanks for the info Andy, a friend recommended that wing to me but I wasnt sure but now I will add it to my upgrade list. Happy holidays to you and yours. 81 Deaver "Hystrung"
Do you have outboard steering (meaning rudder is offset on the back of the boat to the right if you are looking at the transom from behind the boat?) or is it a center steer set up. (Rudder directly behind the prop?(
The deeper the prop, the longer it's in the water the more efficient the propeller, from 1976 to 1983 I was Engine Builder and Crew Chief for the "Ofixco" Blown Alcohol Hydro, #172your statement that the back of the boat should be way up off the water is not what I found to be the quicker or faster way across the water You'll never see an unlimited Hydro with the tail up, because props are more efficient the deeper and longer the remain in the water when I retired in 83 our boat was running hi 170s to low 180s we were always one of the fastest Hydros in the class, when I began racing with Bill Hartman I had never been to a drag boat race and had to start from scratch, since I had no history of boats I had to simply move stuff around to see what worked and what didn't, the focal point of a Hydro is the position of the V Drive which we ended up as far forward and as low on the inside as we could get, the shaft angle was as flat as we could get and we found that if we were going to run a two speed lenco I felt we should run a wide split, which was a 45split letting the engine rpm rise as fast as possible which allowed us to run a higher V Drive gear "84" while the competition was running a 73 gear with a 31% two speed, Wes Cerny, who was Keith Blacks Shop Foreman and good friend and Engine builder for Cecil Florance Coors Lite" Hydro said Hat? I dont get it, my reply was what dont you get Wes, he said in all the years we've raced we have Never out qualified you guys, to which I replied well Wes its certainly not your engines, its the way the hull is set up, like you and Gary Kehrer Budwiesers boat the first thing that happens when you hit the gas is the boat reminds me of the old mopar super stockers, the first thing you boats do is jump up, while we are faster off the line because of our low gear which was the equivalent of a 61% V drive and in second since the engine rpm is much higher at the 2nd gear shift we just drive away from you guys, if we were having a slow day it was because of the blower, Hartman didn't understand the blower isn't as big an issue with the low gear but once in high if the blower isn't making air you won't go fast...had we had several blowers we would have won a lot more races, In the early days I stumbled on to something that puzzled me, we ran Memphis a lot, they were very good to us and that's where we tested a lot, what puzzled me was before we began moving things around, at Memphis if I leaned on the engine it made more noise but didn't hardly make a difference in mph, so I suggested Hartman run half track and see what it does, most of our runs were mid 160s during that time and Hartmans pass was 161 from halftrack, Hartman couldn't believe it and asked what do you think is going on? I said we're sticking the front end, all props will surface but if they surface to fast and the boat raises to high it wets the sponsons to much and is putting on the brakes, that's when we shallowed the prop shaft and moved the V Drive as far forward and as low as we could get it, I'm not a genius on Hydros, but this is how I came up with the setup to make us as fast as those with better blowers and more static compression and other engine changes..."Hat"
That’s a great solution to many issues you have there. Well done.
Stability equals safety. I like the way you are thinking.
Absolutely!
They run hydros at Creve couer park lake?! Never knew!
Yes, we used to run there for years, they stopped about 2010
Thanks for sharing this information Andy
Thanks for the info Andy, a friend recommended that wing to me but I wasnt sure but now I will add it to my upgrade list. Happy holidays to you and yours. 81 Deaver "Hystrung"
Let me know what results you see, Next week I will share a few more tips that helped our "79 Cole pick up MPH!
I'm building a Sanger Hydro now. I think I'll add these
Do you have outboard steering (meaning rudder is offset on the back of the boat to the right if you are looking at the transom from behind the boat?) or is it a center steer set up. (Rudder directly behind the prop?(
Good to know. Thanks for sharing.👍
The deeper the prop, the longer it's in the water the more efficient the propeller, from 1976 to 1983 I was Engine Builder and Crew Chief for the "Ofixco" Blown Alcohol Hydro, #172your statement that the back of the boat should be way up off the water is not what I found to be the quicker or faster way across the water
You'll never see an unlimited Hydro with the tail up, because props are more efficient the deeper and longer the remain in the water when I retired in 83 our boat was running hi 170s to low 180s we were always one of the fastest Hydros in the class, when I began racing with Bill Hartman I had never been to a drag boat race and had to start from scratch, since I had no history of boats I had to simply move stuff around to see what worked and what didn't, the focal point of a Hydro is the position of the V Drive which we ended up as far forward and as low on the inside as we could get, the shaft angle was as flat as we could get and we found that if we were going to run a two speed lenco I felt we should run a wide split, which was a 45split letting the engine rpm rise as fast as possible which allowed us to run a higher V Drive gear "84" while the competition was running a 73 gear with a 31% two speed, Wes Cerny, who was Keith Blacks Shop Foreman and good friend and Engine builder for Cecil Florance Coors Lite" Hydro said Hat? I dont get it, my reply was what dont you get Wes, he said in all the years we've raced we have Never out qualified you guys, to which I replied well Wes its certainly not your engines, its the way the hull is set up, like you and Gary Kehrer Budwiesers boat the first thing that happens when you hit the gas is the boat reminds me of the old mopar super stockers, the first thing you boats do is jump up, while we are faster off the line because of our low gear which was the equivalent of a 61% V drive and in second since the engine rpm is much higher at the 2nd gear shift we just drive away from you guys, if we were having a slow day it was because of the blower, Hartman didn't understand the blower isn't as big an issue with the low gear but once in high if the blower isn't making air you won't go fast...had we had several blowers we would have won a lot more races,
In the early days I stumbled on to something that puzzled me, we ran Memphis a lot, they were very good to us and that's where we tested a lot, what puzzled me was before we began moving things around, at Memphis if I leaned on the engine it made more noise but didn't hardly make a difference in mph, so I suggested Hartman run half track and see what it does, most of our runs were mid 160s during that time and Hartmans pass was 161 from halftrack, Hartman couldn't believe it and asked what do you think is going on? I said we're sticking the front end, all props will surface but if they surface to fast and the boat raises to high it wets the sponsons to much and is putting on the brakes, that's when we shallowed the prop shaft and moved the V Drive as far forward and as low as we could get it, I'm not a genius on Hydros, but this is how I came up with the setup to make us as fast as those with better blowers and more static compression and other engine changes..."Hat"
Cross it over with a v bottom for less blow overs /flips and better handling . Kind of like a high performance dingy!🤔😏😁
❤❤
👏👏👏
Andy what make is that blade
This one is a Menkens Racing Propeller by Dallas out of Phoenix, Az.