SuperV8 wrote:Anyone know if the little screws used to secure the throttle plate are very restrictive? (The two little screws which are split to lock them in place)
Wondering about using a shorter screw so they're flush and LOTS of thread lock
I know its game over if they come out
Hello Tom, I dont know, BUT I doubt very much if they cause any restriction at all.
For a start off, the only way they could affect the airflow is when the throttle plate was wide open so that the small tails of the screws were exposed the the airflow.
Even then they would only cause infinitesimal turbulence compared to all the other impediments en route to the combustion chamber.
As it happens - turbulence thereabouts could be considered an asset, promoting better mixing of the A/F mixture, prior to combustion.
For all the rest of the time when the throttle is NOT wide open the screw tails are masked from the inrushing air flow on the back of the plate, where there would be tremendous vortices set up by the plate itself making any imperfections caused by the screws totally insignificant.
As to whether it would actually be "game over" if a screw popped out, that would depend on whether the item actually made it down into one of the trumpets as opposed to falling down into the spaces between the trumpets.
Recalling my complete failure at hoop-la when I was a kid at the local fair, I think the risk is pretty low.
If for some reason you were looking at the imagined problem in order to increase the power output of the engine, you would get a lot more mileage from looking at eliminating possible power losses in the Efi system along the lines suggested her:
Stop Efi Power Losses in 15 Easy Steps.
http://www.vintagemodelairplane.com/pag ... wer01.html
By the way, I used to suffer from paranoia too, but not any more, I now know the bujjers are out to get me!
