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| Forum name | Turbo/Nitrous Tech |
| Topic subject | drilling the sfmu restrictor - quick - at the dyno |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=58928 |
58928, drilling the sfmu restrictor - quick - at the dyno
Posted by siueclipse, Oct-19-03 08:25 AM
what size drill bit did you people use to drill out the restrictor? i put it in place but now im running a tad lean on top end at around 5000 rpm according to the datalogger.
thanx
James
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58929, RE: drilling the sfmu restrictor - quick - at the dyno
Posted by WIKKI, Oct-19-03 08:53 AM
The ones that have posted just said that they doubled the size of the hole. I would just eyeball it. IMO
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58930, RE: drilling the sfmu restrictor - quick - at the dyno
Posted by siueclipse, Oct-19-03 09:15 AM
thats too large. we drilled it with .0400 and the fuel curve ended up being perfect
James
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58933, RE: drilling the sfmu restrictor - quick - at the dyno
Posted by WIKKI, Oct-19-03 09:34 AM
:thumbsup
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58934, RE: drilling the sfmu restrictor - quick - at the dyno
Posted by tim97rs, Oct-19-03 09:52 AM
drilling restrictor? i have heard nothing of this... what gives?
why drill it?
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58936, RE: drilling the sfmu restrictor - quick - at the dyno
Posted by siueclipse, Oct-19-03 10:22 AM
the restrictor has a tendancy to help with lag of fuel however makes you run slightly rich under boost. drill it out to give a little more fuel under heavy boost.
James
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58939, RE: drilling the sfmu restrictor - quick - at the dyno
Posted by XtremeRS, Oct-19-03 12:26 PM
I think I used a 5/64" drill bit...
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58943, RE: drilling the sfmu restrictor - quick - at the dyno
Posted by siueclipse, Oct-19-03 01:11 PM
well.. i topped out my injectors.. read my new thread.
James
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