Like Tree0Likes

Banks Engine At PRI Show

Reply
Old 12-09-2009, 12:25 PM
  #11
Registered
 
Join Date: Sep 2006
Location: Toronto, ON
My Boats: Donzi 35zr, Scarab SCS
Posts: 589
Default

I think the blower disengages after a certain rpm. The way I've seen these twin charged systems work is the blower takes up the boost in the low rpm range. That allows you to fit bigger turbos with no lag. The supercharger boosts the low end, and then once the turbos are spinning, the S/C is disengaged and bypassed completely.
freshwaterfiend is offline  
Reply With Quote
Old 12-09-2009, 12:26 PM
  #12
Registered
 
cougarman's Avatar
 
Join Date: Jan 2002
Location: Michigan
My Boats: 1986 Cougar US-1 46'
Posts: 2,765
Default

So why not go this route and have ZERO LAG ?

Boost comes on under 1,800 RPMS


Thanks
Jon
Attached Thumbnails
Banks Engine At PRI Show-check300-5.jpg   Banks Engine At PRI Show-check300-6.jpg   Banks Engine At PRI Show-check300-7.jpg  

Banks Engine At PRI Show-pa310196.jpg   Banks Engine At PRI Show-pa310197.jpg  
cougarman is offline  
Reply With Quote
Old 12-09-2009, 12:42 PM
  #13
Charter Member
Charter Member
 
Dean Ferry's Avatar
 
Join Date: Nov 2000
Location: Merritt Is. Fl. USA
My Boats: 2006 Hustler 388, 2004 Hustler Talon 25, 1999 30 Spectre cat and 2007 21' hydrostream voyager w/ Merc. 225 EFI
Posts: 6,580
Default

Quote:
Originally Posted by cougarman View Post
So why not go this route and have ZERO LAG ?

Boost comes on under 1,800 RPMS


Thanks
Jon
Wow,
Wild looking engine, Who build it and what power is it making?
thanks,
Dean
__________________
Everything is for sale @ a certain $$
Dean Ferry is offline  
Reply With Quote
Old 12-09-2009, 12:55 PM
  #14
GLH
Platinum Member
Platinum Member
 
GLH's Avatar
 
Join Date: Dec 2002
Location: Burlington, VT
My Boats: Azimut
Posts: 15,267
Default

How much does it weight?
GLH is offline  
Reply With Quote
Old 12-09-2009, 12:56 PM
  #15
A to Z
Platinum Member
 
Sean H's Avatar
 
Join Date: Apr 2004
Location: KC/LOTO
Posts: 9,156
Default

Quote:
Originally Posted by cougarman View Post
So why not go this route and have ZERO LAG ?

Boost comes on under 1,800 RPMS


Thanks
Jon
because they wanted a diesel.
Sean H is offline  
Reply With Quote
Old 12-09-2009, 03:28 PM
  #16
Registered
 
cougarman's Avatar
 
Join Date: Jan 2002
Location: Michigan
My Boats: 1986 Cougar US-1 46'
Posts: 2,765
Default

Quote:
Originally Posted by Dean Ferry View Post
Wow,
Wild looking engine, Who build it and what power is it making?
thanks,
Dean
Tom Earhart ( Michigan )

1,500 Hp

1,200 F.T LBS. of Torque at 2,200 rpm's


Thanks
Jon
cougarman is offline  
Reply With Quote
Old 12-09-2009, 03:41 PM
  #17
Registered
 
KNOT-RIGHT's Avatar
 
Join Date: Dec 2002
Location: Providence,RI
My Boats: Turbine 46 Skater
Posts: 3,172
Default

[QUOTE=cougarman;3003384]Tom Earhart ( Michigan )

1,500 Hp

1,200 F.T LBS. of Torque at 2,200 rpm's


Thanks
J

I wonder if these are going in a big Cougar.
KNOT-RIGHT is offline  
Reply With Quote
Old 12-09-2009, 06:40 PM
  #18
Registered
 
cougarman's Avatar
 
Join Date: Jan 2002
Location: Michigan
My Boats: 1986 Cougar US-1 46'
Posts: 2,765
Default

Quote:
Originally Posted by Sean H View Post
because they wanted a diesel.


Sean,

I brought the question about cause not everyone has the no turbo lag figured out. Tom Earhart does.

I respect Mr. Banks and his accomplishments, and the engine is a nice looking piece. However it's that much more to maintain with two different rotating induction systems.

Anyways there was plenty of people on this thread asking about comparison's to gas, carrying the RPM's out furthur etc.

Not looking to take away from anyone, but rather show the options out there. A cleaner option, a much less complicated option. The technology is here also, fully computer controlled, fuel injected etc.


So take it for what it's worth, cause I think in the near future you will see more and more of these


Take Care

Jon
cougarman is offline  
Reply With Quote
Old 12-09-2009, 06:44 PM
  #19
Registered
 
cougarman's Avatar
 
Join Date: Jan 2002
Location: Michigan
My Boats: 1986 Cougar US-1 46'
Posts: 2,765
Default

[QUOTE=KNOT-RIGHT;3003393]
Quote:
Originally Posted by cougarman View Post
Tom Earhart ( Michigan )

1,500 Hp

1,200 F.T LBS. of Torque at 2,200 rpm's


Thanks
J

I wonder if these are going in a big Cougar.


Hey Gerry,

This is in a single engine application, 30' with a #6 drive. And 35 mph to 109 mph in about 12 seconds with the latest testing in late November. There's more in it, but they were running out of lake real quick


Would be Trick for the Cougar though.


Jon
cougarman is offline  
Reply With Quote
Old 12-09-2009, 08:55 PM
  #20
Registered
 
Join Date: Jun 2004
Location: Freehold, NJ
My Boats: 32 SeaCraft
Posts: 1,381
Default

It's been a long time since I agree with anyone's attempts to make a practical performance marine diesel.

I wrote about similar on here a couple times, blowers on top of 7.3's, it's nice to see the Banks team finally address the low end power problems.

FYI, it's not lag that the blower solves it's lack of heat to be able to spool up any type of turbo charging starting from idle with a large load on it.

You guys make these comparisons to gas engines and you simply can not do that. The diesel has to be geared much taller than a gas engine to get equal prop speed because the top end rpm's are so much lower. Therefore the load on the engine coming off of idle is much greater.

Put anyone of your turbo charged gas engines in a car, put the car in high gear 1:1 like a diesel would be and punch the gas from idle - the engine dies if not stalls. That is how it is for a diesel in high performance boat with a fully submerged surfacing propeller.
HabanaJoe is offline  
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 04:24 PM.


Copyright 2011 OffShoreOnly. All rights reserved.