Snowmobile Forum banner
1 - 17 of 17 Posts

·
---------(PI488)---------
Joined
·
2,742 Posts
Never heard of a performance chip.
 

·
Registered
Joined
·
27,125 Posts
NO! There are several chips for the EFI sleds! The best that I have found is I have made up an adjustable fuel presure regulator! It has a gauge and is adjustable from like 20# to lean it down and up to over 40 to richen for pipes!
 

·
Registered
Joined
·
27,125 Posts
No on the chip!
Open up the stock exhaust box,
Oval out the pick up coil mount holes (advance timing)
And adjustable fuel regulator
Personally a bit of flow porting helps alot!
 

·
Registered
Joined
·
4 Posts
No on the chip!
Open up the stock exhaust box,
Oval out the pick up coil mount holes (advance timing)
And adjustable fuel regulator
Personally a bit of flow porting helps alot!
I have a can on the sled, any specific fuel regulator? Not the brightest on snowmobiles slowly getting into it, just wanting some more power, I was gonna try and get some zr700 pipes and stuff them into the ole 96 ext, worth a shot
 

·
Registered
Joined
·
27,125 Posts
A sour subject but I built a 98 EXT many years back!
The 580 can be bored out to a 620?
The stock can had the Black Magic rework
Heads were turned, case and cylenders were ported!
And of Course it has my adjustable fuel pressure regulator complete with gauge!
It was very fast! 98 mph in 500'
 

·
Registered
Joined
·
4 Posts
A sour subject but I built a 98 EXT many years back!
The 580 can be bored out to a 620?
The stock can had the Black Magic rework
Heads were turned, case and cylenders were ported!
And of Course it has my adjustable fuel pressure regulator complete with gauge!
It was very fast! 98 mph in 500'
How do you get an adjustable fuel regulator for one?
 
1 - 17 of 17 Posts
Top