fat frank
Supercharged
I just replaced the stock crossover with the new staintune free flowing pipe. Huge difference. My tuner hooked up his A/F gauge to monitor the readings. After I installed the triples I have a good A/F mix at just over 13.1. With the new pipe installed, the initial run showed way lean across the board. The readings were 16.5+ all the way across. Using tuneedit, we ended up adding 10% more fuel aross the board and got the reading down to 13.5, which is a good setting for cruising. I'll keep the A/F gauge on for the rest of the week to take readings and to analyze the results. This particular gauge will store info at different throttle positions to be looked at later with the computor. This coming weekend we will get back on the dyno to set the A/F at WOT to get max power and torque. (70 to 100% throttle). Without an eddy current dyno(one with a brake), you can't do accurate trims except at WOT.
With the 10% increase in fuel to get the reading down, this tells me the pipe is really freeing up the exhaust. I'm expecting good gains on the dyno. I'll post the results when I'm through.
Later
BTW: the stk x-over doesn't have cats in it, but is a highly restrictive piece of work. I can't believe Triumph designed this ww/o cats to be like this. Totally rediculous.
With the 10% increase in fuel to get the reading down, this tells me the pipe is really freeing up the exhaust. I'm expecting good gains on the dyno. I'll post the results when I'm through.
Later
BTW: the stk x-over doesn't have cats in it, but is a highly restrictive piece of work. I can't believe Triumph designed this ww/o cats to be like this. Totally rediculous.
