To MS or not? Secondary throtle plates....
Posted: Sat Sep 06, 2008 9:02 am
Just bought a KTM street bike with a 1000cc 75 degree V twin. I am debating weather to install a MS or tune the factory ECU. The drawbacks to MSing it are:
1, hacking into the stock wiring harness.
2, no control over the factory secondary throtle pates.
Benifits of MS-ing it:
1, direct WB suport
2, more elaborate tuning stratagies, i.e. x-tau and blended alpha-n (stack has this but to a lesser extent ), possible dual MAP sensor with add-on board for a more stable MAP signal.
3, Tuning on the fly (on a dyno of course)
4, control over all variables (software for tuning stock ECU only allows alteration of fuel and ignition maps, no AE or Cold start etc.)
5,MS is a bit cheeper (however this is offset by additional labor spent hacking the stock wiring harness).
So I am looking for input from anyone who has tuned a ITB twin, or any other similar motor, I realy am at a toss up, If the Micro squirt can be tuned to make the motor run smooth without the use of the secondary throtle plates then My hunch is I can tune the motor to run better with the MS given all the tuning stratagies. Any suggestions?
1, hacking into the stock wiring harness.
2, no control over the factory secondary throtle pates.
Benifits of MS-ing it:
1, direct WB suport
2, more elaborate tuning stratagies, i.e. x-tau and blended alpha-n (stack has this but to a lesser extent ), possible dual MAP sensor with add-on board for a more stable MAP signal.
3, Tuning on the fly (on a dyno of course)
4, control over all variables (software for tuning stock ECU only allows alteration of fuel and ignition maps, no AE or Cold start etc.)
5,MS is a bit cheeper (however this is offset by additional labor spent hacking the stock wiring harness).
So I am looking for input from anyone who has tuned a ITB twin, or any other similar motor, I realy am at a toss up, If the Micro squirt can be tuned to make the motor run smooth without the use of the secondary throtle plates then My hunch is I can tune the motor to run better with the MS given all the tuning stratagies. Any suggestions?