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-   -   BUR9E vs RE9B (https://www.rx8club.com/series-i-major-horsepower-upgrades-93/bur9e-vs-re9b-233566/)

derek king 05-22-2012 01:43 PM

BUR9E vs RE9B
 
Searched and found a lot of "trash talking" and the only useful help I saw was from Brettus

I see the common thing to do is run the FD Bur9e trailing plugs for both the leading and trailing positions on the renesis with 2 washers on each trailing plug.

Now with those being a #9 heat range and the stock renesis being a #9 (RE9B) heat range why doesnt anyone just run the Rx8 trailing plugs in the leading as well?

I know the price difference is significant at 4.99 and 15.99 but is there a mechanical/performance issue with doing this?

olddragger 05-25-2012 08:28 AM

the trailing plug is shorter and the spark will not be as close to the charge.
This will also allow carbon buildup in the space that the shorter plug leaves

dannobre 05-25-2012 01:05 PM


Originally Posted by Charles R. Hill (Post 4271787)
If you need to go colder than that, there are several different, very expensive, "racing" plugs for you to use.

Depending on where you buy them....they are a lot less than the dealer wants for the OEM ones ;)

jtripp06 05-25-2012 05:12 PM

i used those plugs with the washers and flooded my engine, which led to a fire...

Brettus 05-26-2012 02:18 PM


Originally Posted by Charles R. Hill (Post 4271787)
There has been a LOT more conversation on this issue over the past several years but, apparently, the archives are not kept long enough for you to have found it all.

In short, use the factory plugs unless you are boosted beyond the GReddy Turbo Kit levels. Then, feel free to use the BUR9-EQPs in the lead position and the factory trailing plugs in the trailing position. If you need to go colder than that, there are several different, very expensive, "racing" plugs for you to use.

:icon_tup: This chap seems to know what he is talking about . ;)


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