i guess thats the new B.C system-
-pull motor out in winter !
-freshin up motor for more output !
-install aircare motor !
-pass aircare !
-reinstall fresh motor !
buy insurance for 2 years.
not a bad plan ,maybe you can rent that motor for $25.00 a day
Hmmm good idea Jim. Well actually I can buy 6-7 months this year (in my case April-Oct) then before the aircare expiry date next year I get another 6mths (April-Oct) . So actually 12mths payment for 2yrs. Your
BC System\" sound about right.
Matt, higher octane is not as volatile as lower octane. 94 is harder to burn. I simply bought 94 just because..... Emissions is all about how it burns. If pre-igniton occurs which means detonation will typically follow would effect the emission output. Higher octane will reduce the chances for pre-ignition so thats why I just bought 94 octane. You never know if the carbon crap in our older engines will pre ignite the cheaper lower octane fuel. So by saying this the higher octane will be more precise in burning fuel when its suppose to.
Higher octane WILL NOT increase emission output. If anything it'll have the same readings as cheaper lower octane (if no pre-ignition occurs)
The problem with AirCare testing is that the stroker engines with larger duration cams will usually have a 2.5\" exhaust/muffler. The probe goes in our muffler and the negative reversion from when the exhaust valve closes creates a negative pressure that sucks air into the muffler. Aircares probe will see a \"Sample of dilution\" which creates a problem. So Aircare thinks you have a massive exhaust leak. I tested my 2332 with CB2289 cam with a 4 gas analyser and the C02 readings were very low (bad) and the 02 content was very high because of the negative reversion caused by the cam. On the other hand a few years ago my 2110 with Engle 125 and 44 IDF's passed since the duration of the cam is smaller meaning less reversion.
On stock engines you almost NEVER have worry about the dyno test. The idle test is the only concern. The only real method of adjusting dual carbs with a 4 or 5 gas analyser is to remove your muffler and test the individual exhaust ports with a probe at the collector. Works like a HOT DAMN but wear earplugs. Or its a matter of tweaking 4 mixture screws for a long time.
