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Old 09-26-2003, 11:51 AM   #1
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Default NS12S5 Question on Venturi

How many of you are running the venturi (carb insert) on your S5 engine?

Did anyone take it out?

Did you notice a big difference?

Thanks

Eric
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Old 09-26-2003, 02:44 PM   #2
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Default Re: NS12S5 Question on Venturi

Quote:
Originally posted by treky11
How many of you are running the venturi (carb insert) on your S5 engine?

Did anyone take it out?

Did you notice a big difference?

Thanks

Eric
take it out! What a waste of engine perfomance having in it there. Once we go for OUTLAW, make it OUTLAW for BROKE!!!
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Old 09-30-2003, 05:06 AM   #3
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Default Without venturi???

Yes, there's a difference, in few words.

- More high end.
- Less low end.
- More fuel comsuption (more times to pit).
- Less driveability at low-rpms or tight tracks.
- More abrupt powerband.

Sometimes when track conditions require I use 5.2 or 5.0mm carb restrictors, better low-end, more fuel mileage and other benefits. At the end of main, marshalls measured me three times the tank capacity because I was pitting about 7 minutes each tank
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