diff between nikki and RB manifolds
#1
diff between nikki and RB manifolds
How come the ports on the racing beat manifold are lower than the ones on the nikki. Is this for a earlier 12a or is this how it is supposed to be. I've been having trouble tuning the Carter that is mounted on it and was thinking this was my problem. The picture is of the racing beat ports on top of the nikki manifold.
#4
Rotoholic Moderookie
iTrader: (4)
The ports on the stock manifold don't match the engine's ports either. The most amazing thing is that port matching the manifold to the engine actually *decreases* airflow.
You're probably thinking "wtf?".... Yup... that's what I thought. '
See here:
http://www.yawpower.com/Flow%20Testing.html
Example #1 in bold partway down.
Jon
You're probably thinking "wtf?".... Yup... that's what I thought. '
See here:
http://www.yawpower.com/Flow%20Testing.html
Example #1 in bold partway down.
Jon
#5
I have compared it to the engine and nikki ports look like they line up perfectly. The racing beat looks like it sits to low. The secondary ports on the rb are almost 3/16 lower than the ones on the block. My problem was that whenever I would open the secondaries it would act like it was hitting a rev lmiter. I was thinking that some of the air was hitting that 3/16 on the block and creating all kinds of turbulence. Also my mikuni sits low like the rb does.
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