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Thanks Dennis. Sparkplugs.com had the dimensions for the
RX8 and RX7 plugs. The reach for the RX8 plug is listed at 20.6 mm. The RX7 plus
are between 19 mm and 21.5 mm. The cheaper plugs are 19 mm for the 1990 turbo
model. BUR9EQP ,
BUR7EQP
Bobby
Bobby,
I used 13 B plugs in my Renesis during a lot of my
ground runs - this was when we were having problems at higher rpm with the CAS
not being compatable with the EC-2. Once we added the zenor diode and
resistor I compared both the 13 B and Renesis plugs. I did not see any
notable difference in ground testing. I now have over 85 hours on the
original Renesis plugs that came with my engine (9,500 miles on the car when it
was wrecked). I use nothing but Mogas and have my fuel pumps mounted on
the floor behind the firewall of my RV-7A. I have not had any vapor lock
problems at temps above 95 deg. in the summer.
Several days ago several
posts showed problems with cowl interference with 13 B engines. I've found
that when using the Renesis engine the water pump outlet, alternator mount and
oil fill can easilly be modified to fit the RV-7A using the James Rotary
cowl.
Dennis H.
Bobby J. Hughes wrote:
Any problems using
13B sparkplugs in the Renesis. I have a set of the expensive Renesis plugs but
would prefer to use less expensive ones for the first few hours. I seem to be
running out of things to wire so I may attempt an engine start in a
couple of weeks.
Bobby J Hughes
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