Quote:
Originally Posted by ThEGr33k
Cheers embee, some interesting reading. 
Chris, its cos I wonder, some people have a little more fuel in when throttle closed to reduce engine braking.
Another reason is I'm still having that slight issue with constant throttle with constant throttle being a tiny bit jerky. I'm wondering if it could be that the tps is reading a little on the side of thinking the throttle is more open than it is and maybe its running rich... could cause this jerk?
Don't suppose you know anything about all that? I know I've asked a fair amount in different ways but I'm trying to sort this... I'm wondering if putting it on a dyno would show, but then that's why I wondered what a good a/f for constant throttle would be. |
What you mean "some people" not like everyone plays with this stuff.
More fuel will increase irreversibility in engine, as you put energy into fuels latent heat of vaporisation and do not get it back. Thus increasing engine braking.
Fuel is added on overrun to smooth transition, it will be jerky otherwise.
Surging about is usually a lean issue. TPS could cause it, set it a tad earlier and see what happens.
Dyno would not show it unless you put it on a dynapro eddy current one and test it under steady state condition. Dynojet inertia type would not show you problem unless you also have a lean issue at WOT.