safe M7 mods

specialk6r · Nov 20, 2011

I just purchased a 05 M7 LE 162 that is down on compression on the PTO side (120 vs 135 lbs on the MAG side.) The Mag side piston looks good and the PTO side has some detonation. This tells me that the sleds current mod package is not working.

The sled came with a Speedwerxs pipe, can, 5-9000 ft. pump gas head, and KOSO EGT gauges. What can I do to make this a safe gas-n-go sled for 6,000-11,000 ft?

Note: This sled is for my girlfriend (a.k.a. backup for my TM8) so I can't trust any mods that require diligent gauge watching.

slomo · Nov 20, 2011

rkt m7-8 bb pull rope and go no tuning with stock pipe and no box required

specialk6r · Nov 20, 2011

slomo said:
rkt m7-8 bb pull rope and go no tuning with stock pipe and no box required

I should have specified, which of my mods do I have to set back to stock to make it pull-and-go?

I've considered adding a RacinStation PCV, but a buddy sled needs to be cheap, plus I ride at many elevations. And it seems these sleds have unique personalities since many get away with similar mods and no box. In my sleds credit, it did put up with the pipe/head combo for 1,000 miles and was running well when I found the problem. But, that's less than a season for me.

Boostfreak · Nov 20, 2011

I ran an 05 M7 with a speedwerx head and a thing can with no controller and it worked great so maybe if you went back to the stock pipe you would be good to go.

diggerdown · Nov 20, 2011

Deto means too low of octain for the head. Maybe it got run below 5000' or maybe someone put 87 O in it. It would need 91 O even at elevation. I doubt it's a bad set up, it probably just got some poor gas at one time.

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safe M7 mods

specialk6r

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slomo

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specialk6r

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Boostfreak

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diggerdown

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