Like Tree0Likes

Twin turbo engines

Reply
Old 09-16-2010, 12:59 PM
  #81
Platinum Member
Platinum Member
Thread Starter
 
BigSilverCat's Avatar
 
Join Date: Jan 2003
Location: Joplin, Mo
My Boats: 2016 50' Skater Catamaran , 2003 41' Apache Cat, 2003 36' Cigarette Gladiator
Posts: 2,467
Default

Quote:
Originally Posted by JohnnyZ View Post
Any updates on this rig? Will it be ready for the Shootout?

Killer motors BTW.
skater did not get the boat done till the week of the shootout so we went to loto and tried dialing it in but there was not enough time to finish it before the run so we decided not to try to go fast in a brand new boat with no seat time..

we have been running it around grand the the last couple weeks... here is a video of us running down the lake a couple days ago...

this was not trying to make a high speed video... just a video of us running around so we would have record of rpm and speed at different points so we could figure our prop slip trying different set ups.

youtube compresses the video so it is hard to read the numbers on there but on my computer we can read them.. I will try to upload to vimeo and see if its better there..

in the video at 55-5600 rpm and 3 lbs boost we are running 160 mph.. with a 40 pitch prop and 1.15 gear ratio in the #6..

http://www.youtube.com/watch?v=48M7e-TQfDo
BigSilverCat is offline  
Reply With Quote
Old 09-16-2010, 01:00 PM
  #82
Platinum Member
Platinum Member
Thread Starter
 
BigSilverCat's Avatar
 
Join Date: Jan 2003
Location: Joplin, Mo
My Boats: 2016 50' Skater Catamaran , 2003 41' Apache Cat, 2003 36' Cigarette Gladiator
Posts: 2,467
Default

here is a video of the engine starting and reving

http://www.youtube.com/watch?v=T76laJvfEPE
BigSilverCat is offline  
Reply With Quote
Old 09-16-2010, 01:13 PM
  #83
Registered
 
Join Date: Aug 2007
Location: St. Louis, MO
Posts: 39
Default

Looks and sounds awesome. I can't wait to see it turned up to full boost!!!
Great work as always SMITH POWER!
Brian Smith is offline  
Reply With Quote
Old 09-16-2010, 01:22 PM
  #84
Platinum Member
Platinum Member
Thread Starter
 
BigSilverCat's Avatar
 
Join Date: Jan 2003
Location: Joplin, Mo
My Boats: 2016 50' Skater Catamaran , 2003 41' Apache Cat, 2003 36' Cigarette Gladiator
Posts: 2,467
Default

some new pics
Attached Thumbnails
Twin turbo engines-dscf0032.jpg   Twin turbo engines-dscf0036.jpg   Twin turbo engines-dscf0049.jpg  

Twin turbo engines-dscf0095.jpg   Twin turbo engines-dscf0151.jpg  
BigSilverCat is offline  
Reply With Quote
Old 09-16-2010, 01:29 PM
  #85
Platinum Member
Platinum Member
Thread Starter
 
BigSilverCat's Avatar
 
Join Date: Jan 2003
Location: Joplin, Mo
My Boats: 2016 50' Skater Catamaran , 2003 41' Apache Cat, 2003 36' Cigarette Gladiator
Posts: 2,467
Default

few more pics...
Attached Thumbnails
Twin turbo engines-dscf0162.jpg   Twin turbo engines-dscf0165.jpg   Twin turbo engines-1-front.jpg  

Twin turbo engines-1.jpg   Twin turbo engines-9-front-valve-cover.jpg  
BigSilverCat is offline  
Reply With Quote
Old 09-16-2010, 01:31 PM
  #86
Registered
 
JasonSmith's Avatar
 
Join Date: Feb 2005
Location: USA
Posts: 4,333
Default

Tyson, what's the deal with the smaller exhaust pipes on the back of the boat that are above the bigger ones?
JasonSmith is offline  
Reply With Quote
Old 09-16-2010, 01:35 PM
  #87
Registered
Trade Score: (1)
 
Join Date: Jul 2003
Location: Michigan
My Boats: 29 PHANTOM 36 SKATER 38 POWERQUEST
Posts: 3,193
Default

Noticed the michigan plates, its that just a "borrowed trailer/plate" or is the boat staying in Michigan?

Very cool ride, always neat to see something innovative. It was only a matter of time as turbos have come a LONG way and add in modern EFI and you've got quite a setup. Great job.
fantastixvoyage is offline  
Reply With Quote
Old 09-16-2010, 01:50 PM
  #88
Diamond Member #001
Charter Member
Trade Score: (2)
 
C_Spray's Avatar
 
Join Date: Oct 2000
Location: Coastal North Carolina
My Boats: 2000 Formula 382 with Innovation 600's
Posts: 4,789
Default

Quote:
Originally Posted by JasonSmith View Post
Tyson, what's the deal with the smaller exhaust pipes on the back of the boat that are above the bigger ones?
Those are wastegate exhausts. The wastegates control the boost pressure by bypassing any extra exhaust gasses not needed to achieve the desired airflow (boost) from the turbos. In some applications (Merc 1300/1350's for example), the wastegate exhaust can be shared with the primary exhaust downstream of the turbo, but that can sometimes create boost control issues.
__________________
Retired! Boating full-time now.
C_Spray is offline  
Reply With Quote
Old 09-16-2010, 02:00 PM
  #89
Platinum Member
Platinum Member
Thread Starter
 
BigSilverCat's Avatar
 
Join Date: Jan 2003
Location: Joplin, Mo
My Boats: 2016 50' Skater Catamaran , 2003 41' Apache Cat, 2003 36' Cigarette Gladiator
Posts: 2,467
Default

Quote:
Originally Posted by C_Spray View Post
Those are wastegate exhausts. The wastegates control the boost pressure by bypassing any extra exhaust gasses not needed to achieve the desired airflow (boost) from the turbos. In some applications (Merc 1300/1350's for example), the wastegate exhaust can be shared with the primary exhaust downstream of the turbo, but that can sometimes create boost control issues.
yep... what he said...
we were going to have the wastegate pipes go right into the main exhaust right behind the turbo like we did when we made them for the dyno but cmi said they could not do that.... when we get time this winter we are going to remake them ourselves so there will only be two main exhaust pipes so it will look better in the engine compartment..
BigSilverCat is offline  
Reply With Quote
Old 09-16-2010, 02:30 PM
  #90
Platinum Member
Platinum Member
 
Sea-Dated's Avatar
 
Join Date: Jun 2005
Location: Tulsa, Oklahoma / GLOC
My Boats: Sold the Cafe' and boatless for now.....
Posts: 3,376
Default

Quote:
Originally Posted by fantastixvoyage View Post
Noticed the michigan plates, its that just a "borrowed trailer/plate" or is the boat staying in Michigan?

Very cool ride, always neat to see something innovative. It was only a matter of time as turbos have come a LONG way and add in modern EFI and you've got quite a setup. Great job.
Boat will stay in Oklahoma. The boat and and the mills are even more beautiful in person. I can't wait for a ride.
Sea-Dated 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 11:56 PM.


Copyright 2011 OffShoreOnly. All rights reserved.