Like Tree0Likes

Big Cu. In. engines

Reply

Old 06-24-2007, 02:14 PM
  #1
Registered
Thread Starter
 
Join Date: Jun 2007
Location: Wyandotte, MI
My Boat: looking for one
Posts: 64
Lightbulb Big Cu. In. engines

Hi Guys, I searched the forums and did not find an answer. I am new to the offshore boating so I hope it is not a dumb question. I understand that in racing the size of a motor will be restricted but for pleasure/ poker run, the biggest size cu. in. motor I have found is the 632. I am just wondering if there are any builders making any 800 cu.in. engines I know that drag racing and marine are totally different but that size motor is used in IHRA drag racing. So I was thinking, on some of the Larger boats 39' and up in stead of triple and quad if a builder could make an 800 cu. in. turbo or supercharged fuel injected motor, you could make some serious tq. and hp.

Now I know with the 800 IHRA engines they are only used a 1/4 mile at a time, but if you spin the motor only to 5500rpms and use quality billet steel parts, I wonder if durability will not be a problem. Also if someone already started a thread on this subject sorry for restarting if you could post a link to the thread that would be great.

Oh and I am in no way in the market for such an engine, this is just a thought I had.

Thanks----Brad

Last edited by B251; 06-24-2007 at 02:18 PM. Reason: content
B251 is offline  
Reply With Quote
Old 06-24-2007, 02:49 PM
  #2
Registered
 
LostinBoston's Avatar
 
Join Date: Mar 2004
Location: NY
Posts: 1,544
Default

Stotler has a 700+ V8. Torque had an 872 V12.

http://www.stotlerracing.com/
LostinBoston is offline  
Reply With Quote
Old 06-24-2007, 04:24 PM
  #3
Registered
 
jhiguy377's Avatar
 
Join Date: May 2005
Location: Lake Oswego OR
My Boat: 377 Scarab
Posts: 989
Default

B251,
I like your thinking about big cubes; if you can reliably make decent horspower without extra equipment ( turbochargers, blowers, etc.) I think you're ahead of the game. Bear in mind that the more exotic you get with aftermarket blocks etc., the less you can find off the shelf parts rapidly.
jhiguy377 is offline  
Reply With Quote
Old 06-24-2007, 04:25 PM
  #4
Banned
 
Join Date: Feb 2005
Location: Cleveland, Ohio
My Boat: all
Posts: 1,460
Default

I have built many IHRA 814+ cu.in Pro Stock engines....just waiting for someone to order a set of N/A marine engines. We can build anything you can dream of.
mrhorsepower1 is offline  
Reply With Quote
Old 06-24-2007, 04:26 PM
  #5
Banned
 
Join Date: Feb 2005
Location: Cleveland, Ohio
My Boat: all
Posts: 1,460
Default

Originally Posted by jhiguy377 View Post
B251,
I like your thinking about big cubes; if you can reliably make decent horspower without extra equipment ( turbochargers, blowers, etc.) I think you're ahead of the game. Bear in mind that the more exotic you get with aftermarket blocks etc., the less you can find off the shelf parts rapidly.
Nothing is shelf stock....all custom built parts. Very good point. It takes time to get everything this time of the year.
mrhorsepower1 is offline  
Reply With Quote
Old 06-24-2007, 05:43 PM
  #6
Registered
Thread Starter
 
Join Date: Jun 2007
Location: Wyandotte, MI
My Boat: looking for one
Posts: 64
Default

Originally Posted by jhiguy377 View Post
B251,
I like your thinking about big cubes; if you can reliably make decent horspower without extra equipment ( turbochargers, blowers, etc.) I think you're ahead of the game. Bear in mind that the more exotic you get with aftermarket blocks etc., the less you can find off the shelf parts rapidly.
Jhiguy377 thanks for the kind words.

Yah, I see some of these large boats with Tri and Quad engines in the boats, I mean if its time for a rebuild that has got to be some serious $$$$. but from the start if you have 2, 800 + cube engines supercharged or turbo with fuel injection I would think you could be close to the same power of 4 engines but you would have less weight from the additinol drives and engines plus your maintinence is less with 2 engines vs 4, I understand the exotic parts are more and less avail. but if more people use em the less exotic they become, I mean how long ago before the 540 became mainstream?

Just some of my thoughts thanks for the replies.----Brad

Last edited by B251; 06-24-2007 at 08:14 PM.
B251 is offline  
Reply With Quote
Old 06-24-2007, 08:18 PM
  #7
Registered
Thread Starter
 
Join Date: Jun 2007
Location: Wyandotte, MI
My Boat: looking for one
Posts: 64
Default

I guess I should not be worried about the cost of maintinence for 3 or 4 engines considering I don't have the $$$ for a boat that big.
B251 is offline  
Reply With Quote
Old 06-24-2007, 09:17 PM
  #8
Rob
VIP Member
iTrader: (6)
 
Strip Poker 388's Avatar
 
Join Date: Aug 2001
Posts: 21,578
Default

I wouldnt think a large rotating assembly would hold up to constant rpm?
__________________
.

The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
Strip Poker 388 is offline  
Reply With Quote
Old 06-24-2007, 10:11 PM
  #9
Registered
VIP Member
 
Join Date: Jan 2004
Location: Boca Raton, FL
My Boat: None
Posts: 3,682
Default

Tommy at Chief Engines motto:

"There's no replacement for Displacement".
Edward R. Cozzi is offline  
Reply With Quote
Old 06-24-2007, 11:55 PM
  #10
Registered
 
Join Date: Jan 2004
Location: Tennessee
Posts: 4,493
Default

I have said for years that BIG inch motors have their place in marine applications. The biggest problem that I see is fitting it in a boat. With a Merlin 11.625 block and big chief heads, you pretty much rule out side by side applications. I have spent a lot of time figuring out the parts needed and the cost, and a 600 inch supercharged motor just makes more sense. The cost is about the same and the 600 incher will fit in almost anything, so you don't limit yourself as an engine builder. That doesn't mean that I don't want to build one, because I have always wanted to. Who wants one???
Young Performance is offline  
Reply With Quote

Quick Reply: Big Cu. In. engines


OSO Sponsor
OSO Advertiser
OSO Advertiser
OSO Advertiser