General Rotary Tech Support Use this forum for tech questions not specific to a certain model year

High revvig rotaries.

Thread Tools
 
Search this Thread
 
Old 10-12-21, 10:22 AM
  #1  
Newbie
Thread Starter
 
Flecez's Avatar
 
Join Date: Oct 2021
Location: Lviv
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Lightbulb High revvig rotaries.

Hello, everybody.

I have a question. It may be quite stupid, but still... The thing, i wanted to know is how high up can you rev stock 13B-MSP. N/A one. Also, what modifications, except better oil pump do you need to do to be able to make your rotary engine high revving, yet being reliable.

Sorry for mistakes, btw. Not native speaker. Hope, that you at least understood what i meant

Last edited by Flecez; 10-12-21 at 10:29 AM.
Old 10-12-21, 12:31 PM
  #2  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,829
Received 2,597 Likes on 1,845 Posts
i think its fine up to 8300rpm, stock fuel cut is up there.

if you had an early engine you might raise the oil pressure with the FD regulator, other than that i think its good to go
Old 10-12-21, 12:33 PM
  #3  
Old [Sch|F]ool

 
peejay's Avatar
 
Join Date: May 2001
Location: Cleveland, Ohio, USA
Posts: 12,506
Received 416 Likes on 296 Posts
I have zero oiling issues using a 12A oil pump. I like the smaller pumps because they do not cavitate as much at higher RPM.

My oil passages are extensively ported to reduce pumping losses, and my eccentric shaft has lead-in and lead-out grooves.
Old 10-13-21, 03:58 AM
  #4  
Newbie
Thread Starter
 
Flecez's Avatar
 
Join Date: Oct 2021
Location: Lviv
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by j9fd3s
i think its fine up to 8300rpm, stock fuel cut is up there.

if you had an early engine you might raise the oil pressure with the FD regulator, other than that i think its good to go
Sorry, i must have formulated my question wrongly. So... What i meant is how high are you able to rev it up without rev limiter, without losing much reliability.
Old 10-15-21, 10:34 AM
  #5  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,829
Received 2,597 Likes on 1,845 Posts
Originally Posted by Flecez
Sorry, i must have formulated my question wrongly. So... What i meant is how high are you able to rev it up without rev limiter, without losing much reliability.
8300rpm... same as stock
Old 10-15-21, 12:37 PM
  #6  
Newbie
Thread Starter
 
Flecez's Avatar
 
Join Date: Oct 2021
Location: Lviv
Posts: 3
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by j9fd3s
8300rpm... same as stock
Understandable. Anyways, thanks for feedback.
Old 10-18-21, 01:45 PM
  #7  
Full Member

 
jts749's Avatar
 
Join Date: Jan 2009
Location: Janesville, WI
Posts: 82
Received 10 Likes on 10 Posts
Umm, my wifes rx8 revs to 9500 all the time while she is autocrossing.
not sure where the 8300 number came from, there is 100% not a fuel cut there.
he did specify the msp engine?

Last edited by jts749; 10-18-21 at 01:47 PM.
The following users liked this post:
Rx7fb spirit r (10-18-21)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ecr7
2nd Generation Specific (1986-1992)
13
02-07-08 11:36 PM
NCross
2nd Generation Specific (1986-1992)
5
10-08-07 11:07 PM
damaged-g00ds
Race Car Tech
35
02-15-07 11:59 AM



Quick Reply: High revvig rotaries.



All times are GMT -5. The time now is 09:30 PM.