Ever wonder how to adjust the timing on your 1999-2005 Mazda Miata? Surprisingly you cannot adjust the factory timing by clocking a cam sensor like previous Miata's, until now. By simply replacing the factory timing encoder (timing) wheel that sits behind your crankshaft pulley with our specially designed slotted wheel, you can advance your factory timing to meet your desired tuning needs. Originally designed for racing, this wheel will also work for your stock street Miata and allow you to advance your timing to achieve better performance.
Specs:
Replaces factory encoder (timing) wheel located behind the crank pulleyWeighs 9 ouncesPowdercoated a race inspired bright greenLegal for SCCA and NASA Spec Miata rulesInstall and Tuning tips:
Note! Always follow factory manual procedures for all work on your car, our suggestions are simply to paint a picture in your head on what it takes to install this part!
Remove crankshaft pulleyInstall 5XR Timing Wheel (sticker out) between pulley back and timing belt cog with square hole positioned to accept located pinReinstall pulley and leave 4 10mm bolts inside pulley loosePosition the wheel in the same manner as the factory wheel, which is achieved by holding the wheel to the left while tightening the four 10mm bolts inside the crank pulley. This will set it at 10 degrees of timing, the same as the stock setting.Snug the 10mm bolts and Reinstall Alternator belt and A/C P/S belt if equippedThe elongated slots allow you to clock the wheel to the right. Clocking the wheel to the right will advance your timing, by moving the tabs on the outside of the wheel further to the right of where they are located in the stock position. It is recommended to start at the furthest left setting on our wheel, which will set your timing at 10 degrees of advance, the same as stock.Use a timing light to check your timing. There should be two dots on your crank pulley that should line up at "T" and "10", advancing the timing would make these dots move to the left, retarding the timing would make them move to the right of the gauge. A good timing setting for horsepower is 14 degrees advanced, which would move the dot normally on the "10" two lines to the left. Our timing wheel should allow up to 16-18 degrees of advance on your timing, but be wary of higher settings without using high octane fuel and dyno testing. The typical limit of timing advance before it starts negatively effecting horsepower is 14 degrees of advance.To adjust the timing, just loosen the four 10mm bolts in the crank pulley and reposition the timing wheel. After your adjustment is made, retighten the four bolts and check your timing again until you achieve your desired settings.
Total Reviews (1)
Reviewed by: Jeff11/11/2011 11:37PM
Product ownership: Less than 1 year
Purchased from: 5X Racing
Comments:
We have installed 5X Racings timing wheel on 2 NB Miatas. The first out of curiosity . The second out of neccesity to keep up with the first car. Two thumbs up !!! I wish I could get this much bang for the buck out of more expensive items.