MT/FZ 07 custom grind cam shafts

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$1,125.00

$900.00 - $1,350.00

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What you are purchasing is a regrind of your stock cam shafts by web cams. This is a custom grind made for me by web cam available exclusively through me. The will take your stock cams add material to them, regrind them to my specs, and then they are hard chromed for longevity

You can see from my dyno results below the gains are phenomenal with minimal loss in the lower rpm's.

I do recommend adding higher performance valve springs with these cams.

If not redline should remain stock to avoid piston to valve interference

After the cam install, you will have to readjust your valves , the base circle will change

These cams are designed to work with a full exhaust system, a HORD intake, and a Spears Racing .1 mm thick head gasket

Hordpower airbox, FZ/MT-07 and XSR700 - $299.95 : HPR - Hordpower, Art of Twins

Yamaha FZ/MT07 80mm Headgasket Stock Bore .010" thick (spearsenterprises.com)`

valve spring specs:

Intake:

Installed Height 1.347"

seat pressure 47 lbs

open pressure at .330 lift 129 lbs

max lift .350"

coil bind .900"

Exhaust spring specs:

Installed height 1.407"

seat pressure 47 lbs

open pressure at .330 lift 142 lbs

max lift .350"

coil bind 0.930"

I have flashes available to match this combination if you do not have your own tuner

Instructions to be sent for how to exactly send in your cams will be sent to you after your purchase

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,The first dyno run shows stock bike vs same bike on the same dyno with Graves full exhaust, HORD intake, Spears head gasket, these cams and my flash. The results a slight loss below 4k rpm but progressively larger and larger gains as rpm's increase. Total in gains , peak number is 16.4 hp and 4.75 ft/lbs torque. Gains at redline are 30 hp!!!!.

The next dyno run shows Graves full exhaust/ HORD intake and my flash vs same bike on same dyno with the addition of the head gasket and cam shafts. Total gains in peak 7 hp / .7 ft/lbs torque with a 10 hp increase at peak.

The riding experience is night and day from stock and noticeably punchier from pre cams. The torque curve is very flat so it pulls steady and consistent with no sudden rushes. Making it very easy to get great drives of off corners with a surprising amount of pull towards the top. Gear selection is less critical with out it falling off up top also. Building a good motor requires the parts to work together to get the most from it and this is a really nice combination!!