Rotary Engine Building, Porting & Swaps All you could ever want to know about rebuilding and porting your rotary engine! Discussions also on Water, Alcohol, Etc. Injection

Engine Weight

Thread Tools
 
Search this Thread
 
Old Mar 16, 2004 | 10:50 PM
  #1  
ColinRX7's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2003
Posts: 3,502
From: Canada
Default

Anyone know what 13B/12A engines weigh as a shortblock?



More specifically for me I'm curious what an S4 13B wieghs as a shortblock. I did a brief search and didn't see anything.



Thanks.
Old Mar 16, 2004 | 11:10 PM
  #2  
j9fd3s's Avatar
Senior Member
 
Joined: May 2002
Posts: 22,465
From: California
Default

shipping wieght on a short block with water pump and flywheel is 275lbs, so its a tad lighter
Old Mar 16, 2004 | 11:32 PM
  #3  
kahren's Avatar
Senior Member
 
Joined: Jan 2002
Posts: 1,345
From: CT
Default

just the engine no flywheel is 190 lbs, shortblock with NOTHING on it
Old Mar 16, 2004 | 11:43 PM
  #4  
ColinRX7's Avatar
Thread Starter
Senior Member
 
Joined: Oct 2003
Posts: 3,502
From: Canada
Default

That's just a touch over what I had figured. Oh well.



Thanks guys.
Old Mar 17, 2004 | 12:11 AM
  #5  
rotarypower101's Avatar
Senior Member
 
Joined: Jan 2003
Posts: 292
From: Portland Oregon
Default

What about the RB aluminum plates, does anyone have a figurer on weight if you were to run all three plates?



I wish someone would produce them at a reasonable rate to make it worthwhile to get them, think how cool it would be to have aluminum plates and then have scalliwag spray them with armcore C for the contact surface.



Looks like RB quotes the plates as being 10.5 and 13 # for intermediate and rear plate



http://www.racingbeat.com/FRmazda3.htm



“As an example of the significant weight savings: a stock, intermediate housing on a 1993 13B turbo engine weighs 25.9 pounds, while the Racing Beat aluminum replacement weighs just 10.5 pounds, nearly a 60 percent weight savings. The stock rear housing on this same engine weighs 25.8 pounds, while the Racing Beat aluminum replacement weighs just 13 pounds, again a savings of nearly 50 percent.”



If it weighs 190 shortblock, then it could possibly weigh in right around 150 for aluminum plates shortblock…damn that would be nice.



How many boingers can claim that kind of power to weight ratio??
Old Mar 17, 2004 | 12:15 AM
  #6  
kahren's Avatar
Senior Member
 
Joined: Jan 2002
Posts: 1,345
From: CT
Default

i think a honda b18 motor weights about the same as the 13b. i woudl have to weight the honda block again
Old Mar 17, 2004 | 12:01 PM
  #7  
TYSON's Avatar
Senior Member
 
Joined: Jan 2003
Posts: 2,871
From: London, Ontario
Default

Originally Posted by rotarypower101' date='Mar 17 2004, 01:11 AM
What about the RB aluminum plates, does anyone have a figurer on weight if you were to run all three plates?



I wish someone would produce them at a reasonable rate to make it worthwhile to get them, think how cool it would be to have aluminum plates and then have scalliwag spray them with armcore C for the contact surface.



Looks like RB quotes the plates as being 10.5 and 13 # for intermediate and rear plate



http://www.racingbeat.com/FRmazda3.htm



“As an example of the significant weight savings: a stock, intermediate housing on a 1993 13B turbo engine weighs 25.9 pounds, while the Racing Beat aluminum replacement weighs just 10.5 pounds, nearly a 60 percent weight savings. The stock rear housing on this same engine weighs 25.8 pounds, while the Racing Beat aluminum replacement weighs just 13 pounds, again a savings of nearly 50 percent.”



If it weighs 190 shortblock, then it could possibly weigh in right around 150 for aluminum plates shortblock…damn that would be nice.



How many boingers can claim that kind of power to weight ratio??
There is no front plate.



Imagine it's because of the bolts being tapped into it, but last time I heard someone check RB didn't have front plates.
Old Mar 17, 2004 | 12:12 PM
  #8  
kahren's Avatar
Senior Member
 
Joined: Jan 2002
Posts: 1,345
From: CT
Default

not sure abtou front or not, bu trb stopped amkign them i heard cause of insuficient orders
Old Mar 17, 2004 | 12:14 PM
  #9  
pengaru's Avatar
Senior Member
 
Joined: Apr 2002
Posts: 2,930
From: IL
Default

Originally Posted by TYSON' date='Mar 17 2004, 06:01 PM
There is no front plate.



Imagine it's because of the bolts being tapped into it, but last time I heard someone check RB didn't have front plates.
i think they just dont have any left and dont plan on reproducing them, maybe they leave it on the site to gauge demand.
Old Mar 17, 2004 | 05:13 PM
  #10  
crackheadmel's Avatar
Senior Member
 
Joined: Jul 2003
Posts: 119
From: New Hampshire
Default

the one engine i have shipped weighed aprox 200lbs shorblock with no flywheel, oilpan frontcover, c-weight etc



All times are GMT -5. The time now is 03:49 PM.