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View Full Version : Taking a SET



vdrivenman
06-09-2003, 03:27 AM
need some advice. took the hondo out yesterday. cranked and ran great.
the hull is 74 tdeck, basic stock 396 w 750 running 18%w 2 blade.tach was not working ??
the boat hooked up fine out of the hole and ran out, did the usual flat/runner bobble and then acted like it wanted to take a set, but just would not do it.put a little down plate in and smooths out, but still will not break on over and set.
felt like i had run out the back side and did not have enuff power(quit pulling).
tried both ways, no peddle and with peddle, no set. this hull has a wing and i have never ran anything with one, what affect if any does this have on way hull rides.
this hull previously had a twin turbo 350 and last a 468 blown /inj alky so that was the last set up. could i possibly not have enuff power ?
the last flat we had was a big ole sanger bubble deck/true flat w 468 2 660's w 22%'s.took it a few hop's, but it would set and run.
boat felt very close to taking set, it has been about 6 years since been in a flattie, so you know where i'm coming from ! gotta get that sense of feel back !

Rexone
06-09-2003, 03:49 AM
my guess is with the stock 96 you can't pull the 18's well. more likely need 15's or even 12's. the wing does nothing necessary at the speed you're likely going and may even be slowing you down. also what prop's on the boat? sound's like it had more power before too so your engine placement could be off for the reduced power or prop location (strut) or a combo of all these. Just my guesses. also every boat is different so don't try to compare the way this boat feels to the way the last one you had was. :)
[ June 09, 2003, 04:50 AM: Message edited by: Rexone ]

vdrivenman
06-09-2003, 06:53 AM
i felt that the 396 was not enuff to pull the gears. it felt as if i ran out of power before boat hooked up.
the motor mounts and placement are same set up as with other motors. i felt i may have to move the motor forward to help break it over. how much would be recommended??
i'll have to check the prop i am unsure of the size.
the boat is not to race but ride the rivers and lake, but i owuld like for it to take a set.
thanks for your advice.

GofastRacer
06-09-2003, 07:04 AM
I wouldn't go moving anything around until you get the power combo right, it might mess things up. Sounds like all you need to do is either up the power or gear it for the power you have, I'd up the power myself!... wink

vdrivenman
06-09-2003, 07:27 AM
i had orginally planned to go with more hp from the get go, but budget restraints was the reason.
may have to just tuff it out this summer and build or purchase more HP next year.
cause it ain't gonna happen tihs year !

BGMAN203
06-09-2003, 06:31 PM
If you posted some measurements it might help us help you. from transom to back of motor, from transom to v-drive plate, and end of strut barrel to back of plate. prop size and pitch. all this info will help. :p

vdrivenman
06-09-2003, 07:13 PM
i will obtain those measurements and check back in with them tomorrow.

vdrivenman
06-10-2003, 06:20 PM
here are the measurements:
from transom to harmonic balancer 29"
from transom to block 33"
from transon to middle of casale box 91"
from end of propstrut barrel to end of plates 25"
best i could do on the prop is 11.25 across blade tip to tip,5" width of blade. unable to locate any numbers on prop.
all advice welcome !!!!!!!!!!!!!!
i realize with a stock 396 it will not be that fast, but i owuld like for it to take a set and ride HOOKed up !

GofastRacer
06-10-2003, 07:00 PM
As I said, gear it down for the power you have, the boat wants to take a set but you got to have the power to hold it on a set. If you don't the boat will fall over and then it will try to pick itself up again and it will keep repeating, that's where the porpoising comes in!. :rolleyes:

V-Drive Tom
06-10-2003, 07:06 PM
V-drivenman, Like GoFast said...
Lower gear to 1.12%
Nail Throttle
Feel Good!!
Your boat will work Moe Better!!
If you need help, Please call if you like. wink
TOM..

77charger
06-10-2003, 07:12 PM
i dont know a whole lot but maybe a gear change will help.

vdrivenman
06-10-2003, 07:19 PM
i called the original owner and spoke with him. he is pretty knowledgable (raced the flattie, has an alky bbc in a chevy II and him and his dad run 38 ft cat with bc w whipple's.
everyone seems to be of the same opinion don't have enuff juice to pull the gears. seller owes me a set( i think their 22%'s) and a couple other things so when i get them i'll try & trade them out.how low should i go???
i'd like to do more power, but gears r cheaper for now !
and thanks for the advice !!

77charger
06-10-2003, 07:29 PM
i would try a set of .09s or 12s.
We run a set of .12s in the race boat motor also makes good hp runs to 7300rpm.The old motor was a mild one and it ran 12s fine but took a little longer to set.

GofastRacer
06-10-2003, 07:40 PM
vdrivenman:
i called the original owner and spoke with him. he is pretty knowledgable (raced the flattie, has an alky bbc in a chevy II and him and his dad run 38 ft cat with bc w whipple's.
everyone seems to be of the same opinion don't have enuff juice to pull the gears. seller owes me a set( i think their 22%'s) and a couple other things so when i get them i'll try & trade them out.how low should i go???
i'd like to do more power, but gears r cheaper for now !
and thanks for the advice !! When you get the 22's, ask Superdave and see if he has some 9's or 12's, he trades gears for a super price!. :cool:

BGMAN203
06-11-2003, 06:48 PM
try the gear change first, because it makes the biggest defference and is the easiest. If that don't work you might want to start moving the motor and the v-drive forward. Am I right guys???

PGF545
06-11-2003, 07:33 PM
Vdrive, where abouts in Texas you live? I might have some 12's and maybe a smaller prop that might work alittle better. I will have to look to see what we still have in the trailer. We are going to Ft Worth this weekend to race. Let me know.
Bernie

GofastRacer
06-11-2003, 08:50 PM
BGMAN203:
try the gear change first, because it makes the biggest defference and is the easiest. If that don't work you might want to start moving the motor and the v-drive forward. Am I right guys??? Changing gears YES!, that will probably fix it!, if it don't MAYBE move the motor forward?, but how do you move the V-Drive forward?, it goes on the end of the prop shaft!. eek! eek! :)
[ June 11, 2003, 09:53 PM: Message edited by: GofastRacer ]

76biesmeyer
06-12-2003, 02:33 AM
If you get the 22,s I will trade a set of 9s for them!!!

pgf127rt
06-12-2003, 02:59 AM
vdrivenman:
need some advice. took the hondo out yesterday. cranked and ran great.
the hull is 74 tdeck, basic stock 396 w 750 running 18%w 2 blade.tach was not working ??
the boat hooked up fine out of the hole and ran out, did the usual flat/runner bobble and then acted like it wanted to take a set, but just would not do it.put a little down plate in and smooths out, but still will not break on over and set.
felt like i had run out the back side and did not have enuff power(quit pulling).
tried both ways, no peddle and with peddle, no set. this hull has a wing and i have never ran anything with one, what affect if any does this have on way hull rides.
this hull previously had a twin turbo 350 and last a 468 blown /inj alky so that was the last set up. could i possibly not have enuff power ?
the last flat we had was a big ole sanger bubble deck/true flat w 468 2 660's w 22%'s.took it a few hop's, but it would set and run.
boat felt very close to taking set, it has been about 6 years since been in a flattie, so you know where i'm coming from ! gotta get that sense of feel back ! From the looks of the wing on your boat it looks as though it is set at a rather steep angle down, if this is the case it could be pushing the tail of the boat down even though you are not going very fast, I would take the wing off and try it with the setup you have now and if it helps and you want to run the wing for show, get someone to set it at a more neutral position.
Great looking boat, and as Bernie 545 asked where are you in Texas?

beaverfab
06-12-2003, 04:08 AM
PGF127rt [jo don]and PGF545, vdriveman is the local law in Beaumont, jefferson county I think. Good to see you are you coming to Fort Worth? PGF 545 if you have spare gears for sale look me up at Fort Worth I might be a buyer. I will be in the BGF 251 pits. j.j. smile_sp

vdrivenman
06-12-2003, 07:13 AM
hey JJ u busted me in front of the guz, as if the avatar didn't give me away.
actually i worked for BPD for 18yrs. i am now at the SO in Orange,Texas. right on the TEXAS,La. border.
If JJ hadn't beat me out as soon as i get the 22%'s i'll let u know. i've always ran 18 or 22, but withmuch more hp and in hydro's to boot.
i'll pull the wing and see what happens. i like the look, but if it prevents the hull from takin a set, it is off for now.
the last boat i owned a deaver that belonged or was LICKIN & KICKIN's ride and b 4 that a sanger ski hydro that was craig caulks.
PGF when u have time check & see what you have layin around.
guess i'll pull the wing and take it to Lake Rayburn this weekend
maybe w/o the wing the possum cop's won't see me!!!! wadda u think?

superdave013
06-12-2003, 08:00 AM
all these people are offering gears but you never said if you are 10 or 12 degree. My 74 hondo had a 12 degree box in it.
Oh, I had the same wing and mine did pick up at the drags when I took it off. And I stopped bonking my head all the time too!
I agree that you need to gear down.

vdrivenman
06-12-2003, 08:49 AM
it is a 12degree lh box. how much did u pick up by loosing the wing. rpm ? mph ?
yes i constantly hit my head while working aorund the rear of the boat, but it REALLY looks good !

Lookin for Liquid
06-12-2003, 11:46 AM
Wings look cool but dont work realistically on any boat until about 130 mph that I have built or worked on in the past. Put some 1.09 gears in it so the prop see's a little more power so it can try to drive it over. Remember that the higher the gear, the less power your prop will see. Everything that we have built is 34"-36" and 96"-98". Sounds like your prop is back to far if you go to put any kind of power to it but for the 396 leave it back so it will try to lift the back sooner. Moving the V drive forward will flatten out the propshaft angle and help the porposing aspect.
Good Luck!