I would doubt it's timing. If it were timing why would it all of a sudden develop this problem.
Also I've never heard of the timing causing a hesitation and a miss. The box itself could be a problem and you could check that by disconnecting it and turning the timing down to about 5 BTDC to make the car safe to drive. I have had a J&S timing box go bad on me once, Run some Redline SL1 through the fuel and see if cleaning the injectors helps. I agree that the unit you have sounds like a JR unit. This is the page with the Miata unit http://www.supercharger.com/Shop/ViewProducts.aspx?PlateIndexID=38404 They don't have directions for the 90-97 unit anymore but I'm sure the adjustment is the same. Larry White Knight 1991 Crystal White #99 CSP Silver Bullet 1992 Silverstone #17 SM2 FM I+ Turbo Honey B 1992 Sunburst Yellow #99 SM2L JR Supercharger Whooosh 2004 Titanium Mazdaspeed MX-5 LowCountry Miata http://www.lowcountrymiataclub.net Masters Miata RAGS 074 _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
