ASD-7 on a 37 Pros & Cons
 

Any thoughts on ASD-7's on a 37 A/T ?

Good question Laszlo.......Anybody?

It was taked about in a thread in the past. If I remember right: it does not work well with the hull due to the AVH hull being designed for a regular drive. Bottom of notch to transom to prop.

Going to try and dig that thread up!

Hustler and their 33 and 38 of which I have been on two..have had great success. It's all mind set..and yes there is less prop selection..and some what of a learning curve when rigging new..but no more than putting Ilmors in vs Merc...but the damn drives are extremely tough..handle well, dock better, reverse ok...just getting on plane takes about a second longer.

I have been talking back and forth with ASD on the set-up and all things point to one solid package with the 7's. I have seen other boats that have done the swap with great success step and non step alike and have been toying with the package on this hull and feel it would be a solid fit. Has there been any design review by Harry on the hull for serface drive application ?

The Bravos not holding up?

No issue with the billet bravos just have a deal on a set of asd's and would love to do the swap. Would be a pretty mean setup if they work on this hull.

Are they the bravo conversion??? If so, worst case is you go back to the bravo setup

I have spoke to Rik about it on my 37 as well. If I remember correctly, I heard or read that the hull was originally designed for a surface drive application. People have mixed reviews about them, I personally would like to go to a ASD but would like to see it done first.

Harry put a Pulse surface drive on one of the 22ATs with the DDC bottom. Pat has spent time in the boat. Then there is also the race boat with VI drives on it.

See if you can get Harry on the phone. I'm sure he'd have a lot to share. http://www.schoellmarine.com/

The DDC was originally designed by Harry Schoell with the surface drive in mind. The first DDC to go through serious paces was the "Infinity" 30, bird of prey, now being produced by Challenger Offshore. The first 30 was rigged with a single mercury Blackhawk drive. Later models were built with the pulse drives. I spend a lot of time in a 30 with the Pulse and loved it. Great running boat. Since the AT 37 utilized many of the same dynamics of the 30 DDC, my guess would be that the ASD should preform very well. More food for thought... Most of the 30's were built with single engine apps. A single 504, 415 hp motor ran the boat at 70 plus and planed at under 13 mph. I would love to see someone do a 37 AT with a single NA 540 cid/ 700 hp and a surface drive. Especially an ASD with its low coefficient of drag principles.

I would guess a surface drive on most performance hulls would result in better mid range and top end performance. Coming out of the hole would be another issue. You need to stay on the throttles longer and at higher RPMs. I just had these installed on my Formula and they do react much different then my XR's through all ranges of operation.

why mess with a good thing? keep what you have.. just my 02 ct...

cause any bravo from any of the manufactures that make them are the wink link to an excellent hull with a good motor...once you have gone with a real drive:party-smiley-004:theres no turning back.:ernaehrung004:

I had the asd 7 and im back :drink:

You had the asd on the A/T ?

no nortech 36 supercat.. Its worth a try i guess.

I contacted Harry and made the deal on the 7's will see what he says.

He should not have a problem with it. Harry tried talking me into his Pulse Drive when I built Radio Active. Ive been on one other perf. boat with the Pulse drive and it was taken off for a few reasons. The Pulse is designed for other boats I feel vs perf. boats. The ASD-7's are designed for the bravo application retrofit and or new. I know of boats that have over 950 hp and love them...it just will take some patience on set up, and corret wheel size...If I could not swing a #6 or Indy drive.. this is the only way to go. Talk with some of the Hustler guys..or better yet call Joe at Hustler or Eddie Young Performance motors..He has seat time and knows exactly how much power they will take before blowing up..Good Luck.. Jeff