Best Drives for Fountain 35 Lightning
08-31-2019, 12:53 PM
#11
According to the Bam Speed Calculator, you should run in the low to mid 90’s if you have 600 at the prop and get your x dimension and prop dialed in. I would call some prop gurus and start trying different props. Your x may be too low and you may need a shorty lower.
08-31-2019, 02:00 PM
#12
Talk to George at All American Drive Service @ 877-283-5465. He's now offering a two year warranty on his Ultra Series Bravo drive for up to 700HP and one year for up to 850HP.
GF?
GF?
08-31-2019, 03:15 PM
#13
Registered
According to the Bam Speed Calculator, you should run in the low to mid 90’s if you have 600 at the prop and get your x dimension and prop dialed in. I would call some prop gurus and start trying different props. Your x may be too low and you may need a shorty lower.
08-31-2019, 03:33 PM
#14
Registered
iTrader: (1)
Hello all, seeking advice for cost effective drives upgrade for a 99' 35 lightning single step with fresh twin 625 hp Atteco engines. Currently Bravo 1 drives 32p props. Currently only 84.5 mph Boat needs another 200 rpms, gets to 5100 rpms, thinking Bravo 1 30p props or swapping out lower units with speedmasters or imco shorties? Then down the road replace the uppers? Or should I just find a pair of SSM IIIs or similar? Trying to get a real top speed.. thank you!
Sounds like a nice little set up with what you have but if you must throw money at it for more speed then I"d say go with a set of -2 Imco shorties and call Bret at B-blades and get in their prop testing program. He'll probably steer you in the direction of P5X's. If you do go with a set of IMCO drives you'll need to also install a set of relief valves or the increased water pressure will blow your hoses off. You'd probably run close to 90 with the right set up.
Last edited by Marginmn; 08-31-2019 at 03:38 PM.
09-02-2019, 04:24 PM
#15
Registered
I ran right at 80 with my 99 35 EX with HP 500's and bravos running hydromotive (27s I think) 4 blades. The 35's like Hydromotive props, 4 blades and P-5X's. If the boat has a stock X dimension from 1999 the drives are buried compared to the X they ran in the mid-2000's. Running 5 bladed props allowed them to get on plane with the higher X.
Sounds like a nice little set up with what you have but if you must throw money at it for more speed then I"d say go with a set of -2 Imco shorties and call Bret at B-blades and get in their prop testing program. He'll probably steer you in the direction of P5X's. If you do go with a set of IMCO drives you'll need to also install a set of relief valves or the increased water pressure will blow your hoses off. You'd probably run close to 90 with the right set up.
Sounds like a nice little set up with what you have but if you must throw money at it for more speed then I"d say go with a set of -2 Imco shorties and call Bret at B-blades and get in their prop testing program. He'll probably steer you in the direction of P5X's. If you do go with a set of IMCO drives you'll need to also install a set of relief valves or the increased water pressure will blow your hoses off. You'd probably run close to 90 with the right set up.
