Is A 13bre Rotor Housing The Same As A Brew?
#8
Originally Posted by 1Revvin7' date='Mar 5 2004, 08:22 PM
This is completely wrong. Spark plug location determines where combustion begins from, and timing is determined by when spark occurs with respect to eccentric shaft rotation (in degrees).
This reply was made in reference to BigTurbo's quote that "timing might be affected too".
Unless, of course, he meant exhaust port timing, in which case, the ports are identical, but the RE sleeves have a lip on them which makes the port close earlier. With FC turbo/FD exhaust port sleeves, the port timing is identical.
#9
Originally Posted by scathcart' date='Mar 8 2004, 04:16 AM
Its common misconception that since the S5 moved the spark plug location in the rotor housing, that this affects the ignition timing, and you have to be careful when using S4 rotor housings with the S5 computer, and vice versa.
This is completely wrong. Spark plug location determines where combustion begins from, and timing is determined by when spark occurs with respect to eccentric shaft rotation (in degrees).
This reply was made in reference to BigTurbo's quote that "timing might be affected too".
Unless, of course, he meant exhaust port timing, in which case, the ports are identical, but the RE sleeves have a lip on them which makes the port close earlier. With FC turbo/FD exhaust port sleeves, the port timing is identical.
This is completely wrong. Spark plug location determines where combustion begins from, and timing is determined by when spark occurs with respect to eccentric shaft rotation (in degrees).
This reply was made in reference to BigTurbo's quote that "timing might be affected too".
Unless, of course, he meant exhaust port timing, in which case, the ports are identical, but the RE sleeves have a lip on them which makes the port close earlier. With FC turbo/FD exhaust port sleeves, the port timing is identical.
And BigT did mean exhaust port timing.
Thread
Thread Starter
Forum
Replies
Last Post
Latin270
Rotary Engine Building, Porting & Swaps
11
05-18-2005 10:31 AM
BigWoogie
RX-7 & RX-8 Parts For Sale & Wanted
1
10-06-2003 09:20 AM
billzrx7
RX-7 & RX-8 Parts For Sale & Wanted
2
08-04-2003 05:55 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)