Lost 10 mph.Help
#51
AKA NoMoBoatin
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Re: Lost 10 mph.Help
Originally Posted by Panther
I lost 2 mph with the same props and gear ratios you were running. I don't understand why your setup is so different though. Prop slip must be coming into play, are the drives slightly deeper than an bravo causing your prop to bite more?
Honestly, I'd try and have Dean set the boat up for you... Ship it down there and have him get it right...
Honestly, I'd try and have Dean set the boat up for you... Ship it down there and have him get it right...
Dean seems to be not returning my calls and i got a email from him a few weeks ago that said he would like to make it right,well so far he sent me a set of lowers and thats it.
Back4More i have tried a stock set of 26 and got a few more rpms but no more speed.I have tried a set of labbed 28s and got no more speed.Throttle up says with the 26 test props i used that my slip was at 12 and trying to get any lower slip would be hard cause i would lose getting on plane I think is what see said.
#52
Geronimo36
Gold Member
Originally Posted by docmanrich37
Panther the drives are the same depth in the water other than the diff. in the weight of them from a bravo drive..
That really sucks that they didn't work for you, something must be different on your engine/drive setup then mine since I only lost 2 mph. I have a low reving engine, big cubes and low/broad tq curve, maybe it works better with a low gear ratio... Years ago I worked on tombone1993's Fountain and we switched from 1.50's to 1.36's and lost a bunch of spead. I don't think it's the "drives" as much as the gear ratio.
BTW, I had 15-16% slip with the 32's and 1.50's. My slip came down to 12% with the 1.36's spinning 26's.
#53
Re: Lost 10 mph.Help
Originally Posted by docmanrich37
Panther the drives are the same depth in the water other than the diff. in the weight of them from a bravo drive.
The B max drive is 1 inch father back than a bravo.Which would make it deeper [just a little !!]in the water,Kinda like a 1 inch set back .
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#54
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Re: Lost 10 mph.Help
I also have gone from a 1.50 Bravo to the 1.30 B-Max. I am still prop testing but went from a 32 bravo stock at 5100 rpm and 83.2 to a 30 Bravo labbed at 5350 and 84.1.
I am currently trying a little beat up 26 Bravo at 5200 and 82.2 I hope to get it all back labbing a 26. I ran 81.2 at 4400 with my labbed 30 on the B-Max during break in.
I am currently trying a little beat up 26 Bravo at 5200 and 82.2 I hope to get it all back labbing a 26. I ran 81.2 at 4400 with my labbed 30 on the B-Max during break in.
#55
Geronimo36
Gold Member
Re: Lost 10 mph.Help
Originally Posted by RBeyer
I also have gone from a 1.50 Bravo to the 1.30 B-Max. I am still prop testing but went from a 32 bravo stock at 5100 rpm and 83.2 to a 30 Bravo labbed at 5350 and 84.1.
I am currently trying a little beat up 26 Bravo at 5200 and 82.2 I hope to get it all back labbing a 26. I ran 81.2 at 4400 with my labbed 30 on the B-Max during break in.
I am currently trying a little beat up 26 Bravo at 5200 and 82.2 I hope to get it all back labbing a 26. I ran 81.2 at 4400 with my labbed 30 on the B-Max during break in.
#56
Re: Lost 10 mph.Help
Originally Posted by RBeyer
I also have gone from a 1.50 Bravo to the 1.30 B-Max. I am still prop testing but went from a 32 bravo stock at 5100 rpm and 83.2 to a 30 Bravo labbed at 5350 and 84.1.
I am currently trying a little beat up 26 Bravo at 5200 and 82.2 I hope to get it all back labbing a 26. I ran 81.2 at 4400 with my labbed 30 on the B-Max during break in.
I am currently trying a little beat up 26 Bravo at 5200 and 82.2 I hope to get it all back labbing a 26. I ran 81.2 at 4400 with my labbed 30 on the B-Max during break in.
A 1.50 gear B Max might help some people getting the TQ multiples rights with prop size.
If I ever get My new Bmax lower I will be able to give you a back to back test on the stock lower foot compared to the B Max crescent lower. I think now with the stock style lower foot I am having prop blow out probs at 100mph ????
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The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
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#57
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Re: Lost 10 mph.Help
Originally Posted by Panther
I'm gonna try and get my hands on a set of labbed 28's next year and see if they work.
I have a set of labbed 28 bravo ones if you would like to try them.I'm in northern NJ.I may have them for sale soon.
Nordic95
#58
Geronimo36
Gold Member
Re: Lost 10 mph.Help
Originally Posted by nordic95
Panther
I have a set of labbed 28 bravo ones if you would like to try them.I'm in northern NJ.I may have them for sale soon.
Nordic95
I have a set of labbed 28 bravo ones if you would like to try them.I'm in northern NJ.I may have them for sale soon.
Nordic95
PS, I saw your motors up in LI when they were freshly painted.
#59
Registered
Re: Lost 10 mph.Help
Originally Posted by Strip Poker 388
What hp is your motor?
A 1.50 gear B Max might help some people getting the TQ multiples rights with prop size.
If I ever get My new Bmax lower I will be able to give you a back to back test on the stock lower foot compared to the B Max crescent lower. I think now with the stock style lower foot I am having prop blow out probs at 100mph ????
A 1.50 gear B Max might help some people getting the TQ multiples rights with prop size.
If I ever get My new Bmax lower I will be able to give you a back to back test on the stock lower foot compared to the B Max crescent lower. I think now with the stock style lower foot I am having prop blow out probs at 100mph ????
#60
AKA NoMoBoatin
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Re: Lost 10 mph.Help
Originally Posted by Strip Poker 388
The B max drive is 1 inch father back than a bravo.Which would make it deeper [just a little !!]in the water,Kinda like a 1 inch set back .