ALL SC NYTRO FLATLANDERS BEWARE 1000ft altitude.

[kinger]

Mac/Heath does the explaination of the GEMS apply to the apex as well?

I have a lean spot that goes 14:1-15:1 at 90 mph exactly, tps is probably 1/2 way down, boost is sluttering at 11-13psi (gets back to 11psi on WOT) and if i give it just atitch more gas it drops to 10.5:1 and climbs to 11.5 where I want it. So basically I go 85mph ot 100 and its fine, just the one spot goes lean and luckliy I got my AEM gauge to show me or I would have popped it!

Thanks great to see the service!

 

[gsxr]

My Apex had the same spot , ran it for 2 years ( zero problems ) just tried to not stay in the lean spot while crusing.

Heath may be able to program around it !

 

[gsxr]

Contact Heath at MPI , they now have a program for the Gems to fix the issue.

 

[kinger]

ok thanks!

 

[gsxr]

New Gems program , and good milage
2010 xtx 6.5 lbs safe numbers
1
2
2
2
1
6
approx numbers ,
all set ups are different.
check a/f
14.0 to 25mph
13.5 to 50 mph
12.5 to 80 mph
11.8 wot @ -10c

 

[spray25]

14.0:1 is a bit lean use at your own risk. I tend to error more towards conservative/engine life.

 

[gsxr]

Can easily add green , or yellow for 0-25 mph but only in that range while on portages , parking lots etc , no load , no boost.

 

[heath@mpi]

Thanks for the numbers Glen

Great AFR numbers!

 

[gsxr]

88 KM APPROX / 55 MILES
16L / 3.5 gal
15.7 mpg 128 miles / trail tank

GOOD TO GO !

 

[rxrider]

Great work Glen

 

[kinger]

Wow I wish I could get that kind of MPG on my SC APEX