Time to go bigger from a 588ci to a 632ci
 

Has anyone had a dealings with Beck racing engines in AZ or ARE out of Ohio. They are telling me they can get me 840-850hp NA with hydrolic lifters 10.1 comp out of a 632CI on 91 octane. What do you guys think? Any feedback on these guys positive or negative would be appreciated, as this will be an expensive venture. For what its worth this will be going in a 24ft HTM cat with a Imco SC drive.

Cat;

I have a 632" with 10.5:1 comp, fully ported and polished dart 360 heads, dart tunnel ram, 2X775 race Demons, comp solid roller 280/288 @.050 .785 lift on 115 cernterline. made 900hp @6600 rpm. @5800 it made 840hp. I very seriously doubt you will get the 850hp you are looking for with less compression and a hydralic cam. I've had lifter issues in my motor and thought about going to hydralic rollers, all the manufacturers and builders I spoke with thought I would give up 100hp. I didn't want to loose that much so I have a set of Schubeck radius lifters going in today. Oh, and I run 93 Octane with 32 degrees of timing. I would say 775-800hp is more likely. I spoke recently with a 25 Daytona owner from SC woth a 622" motor (same heads, 10:1)solid roller and a dart single plane manifold with a 1250 Dominator that makes 840hp at 6300. They just arn't going to get there with a hydralic cam. Also the guy who built my motor knows how to make big power he primarily builds drag motors and has built several 500" NHRA pro stock motors.

JD,
Supposedly they are getting 823hp@5900rpm and 786tq @4500 rpm on 91 oct out of a 604ci, they told me by going to the 632 they can get the addl hp, all with a single dominator I could fax you the parts list if you think it would help, part of the deal is a few hours on the dyno.
My thoughts were to go out when they do the dynoing and only pay them the balance if they get the hp. You are correct I have talked to a number of builders and almost all want to go blower, I don't want to have to cut the hatch.

Stay NA, less complicated and easier on Bravo's. Fax me the list @513-579-3707 attn Corey Jordan. Just be careful with "correction factors" on Dyno's. I would have to witness the pulls to believe them and I'm a little skeptical to say the least. The other side is even if they are 50 hp shy that should only be about 2 mph. ;) You should run 100 in your HTM with 775 HP anyway. :cool: I am most interested in what heads they are using.

There is a board member with a HTM and a Lingenfelter 632. I forget his name...something like...badSR71? Anyways, he's recently posted about trying to sell the boat so he can buy a house.

I can't remember his exact screen name, but you're right. I met him at LOTO and he runs about 106. He's in the August edition of Hot Boat and it say's the motor dynoed at 806hp@ 5,900rpm.

His name is Todd. The post your refering to is here...

http://offshoreonly.com/forum/showth...=sell+boat+HTM

Thanks for the feedback, JD I will fax that stuff off to you later this PM, I certainly hope it is more than you suggested HP because thats about what my 588 has est 760-780hp(not dynoed)but I am currently doing 97-101mph on GPS&radar as comparison Todds HTM with the 604ci with 800hp does 100-106 and mikes HTM with 540ci 640hp is doing 85-90mph, all guys running Imco SC drives, all with hydrolic and single carbs. The reason for going bigger like everyone else is to go faster, these HTM hulls fly and are really stable, anyone ever deal with Beck or ARE?

Cats...another suggestion if you have a choice in the matter is to go with a 622" motor to save some piston wall in case you have any motor problems. A 622 is a 4.56 bore, 632" is a 4.60 bore and a 638 is 4.625 bore which is max recc on a Merlin block. You are right about those HTM hulls..they DO FLY.

I do honestly think they could pull it off. A friend of mine has a 572 that dynoed at 780hp.

BRE in AZ?
 

A friend of mine has a Beck Racing (1,000HP) engine and has been very frustrated. It didn't run right from day one, and he ended up taking it a third party to get it tuned. Also, he found out that it had a less than stellar valve train when he pulled the covers off...

However, that is just one instance (and should be taken as such)...here is a thread or two about them on another board...

Good luck

:D

If you already have a good running engine and a shortened drive, I'd suggest a extension box. You might gain more mph than with a new engine and it would be cheaper.

Cord,
I did try the shorter lower as a matter of fact I ran the 2in had major blowout put the 1inch spacer in still a lot of slip ended up putting a 2in spacer in back to stock height. Come to find out HTM puts their drives about as high as possible and I proved that after $1000 in spacers. I thought about the ext box but no one has tried one on a 24 HTM that I am aware of. I am running the Imco SC drive have about 20hrs on no problems, also run a Broson hill bravo 4blade and Hering 5 blade. Even with the 5 blade the drive was still too high. Motor runs awsome only has 80hrs on it but would like to go faster......

True, you would want to talk to somebody first...I don't know if the factory can be of much help either, but it wouldn't hurt to call. All might not be lost on the drive either. The box will effectivly lower the x by an inch, so you may be able to remove one of them. I've heard of some pretty amazing gains with the boxes and you might just be a canidate.

Cat;

I got your Fax, can you find out what heads are on that motor? thnaks

power, reliability...
 

Why not give this a try?http://www.offshoreonly.com/cgi-bin/...uery=retrieval

;)

Ooops!
 

Forgot about the hatch.:rolleyes:

jdncal (schubeck lifters)
 

Did you use your cam shaft or one from schubeck ? I am very intrested in the out come.

Thanks Rob
P1-4 Out For Justice

Got the cam yesterday, its going in today and will be on the Dyno before week end. I used a Schubeck cam which was ground by Bullet, the cam had a "wild" coating on it that made it very slick (looked polished) ...just like the radius lifters. I think what Schubeck is doing is bringing "Aerospace" technology into the high performance arena. The Duration and centerline are the same as the one I took out but I took out .045" lift (.740" now) The lifters weighed less than half of a standard roller lifter. I will post dyno results as I get them. According to Schubeck the Rockwell hardness of the cam is a 65, the lifters are 95. For reference a file has a 60 Rockwell. ;) My engine builder told me the cam lobe looked sort of like a "very high lift" flat tappet cam....wide bases leading up to a relatively steep ramps.

JD, Dart Pro 1 Alum heads, I am not sure if there is any special name for them. Hey I spoke to a guy yesterday that had a 621ci blower motor from Beck that has 1068hp at 5900rpm he has it in a 2002 28ft daytona open bow, has 40 hrs on it so far this year and no problems. running in the 110+, hey cord this guy is putting a 2deg ext box on his daytona along with his Imco SC.

Rob

I'm guessing the 345 Pro 1's for heads. It looks like BRE uses quality parts in their builds. With a 1 year warrenty I don't see how you can go wrong giving them a shot. I just don't think they will get 850hp with smaller heads, and a hydralic roller cam with a lot less lift. I would expect closer to 800hp, remember dyno headers can have a huge impact and timing can be higher for "short" dyno pulls. All that aside, it looks like a good program for the money and power.

Beck Racing Engines
 

Didn't have time to read all these reply's.
But if nobody has already said it, Beck racing
was given a real nice review in the
August issue of PowerBoat.

Cougarman

Jd, we can probably end this thread but even though Beck has a good warranty since I live in the east coast it will still be pain to get thing fixed if there is a problem so I am continuing my search, Its amazing most all the builders are pushing the blower thing but I found a guy in NJ Kurts Marine who is a big fan of NA and has done 100's of big inchers so we will see, I will forward if you want his component list, he didn't think a problem with 850hp. The cool deal here is if it doesn't make the HP I don't pay any money.
Thanks all for the feedback, anything on Kurts Marine out of NJ would be great.
Robb