Did some work with a dremel on my 454 TBI unit. What do you think?

[Sam454]

I thought I could improve air flow by shaving the throttle plate bar, sharpening the throttle plates, and smoothing out the bore edge. Still need to polish the bore before the throttle plates. Also clearanced the casting for a higher injector pod riser.

You must be registered for see images attach

You must be registered for see images attach

 

[Minn95Dually]

You should polish it.

 

[Sam454]

You should polish it.

Just waiting on some bits for that. Probably just going to put it back on as-is for now. Flow won’t be noticeably worse with the upper bore left unpolished. The bore behind the throttle plate needs to be rough for fuel atomization

 

[Schurkey]

I thought I could improve air flow by shaving the throttle plate bar, sharpening the throttle plates,

Thinning the throttle shaft maybe makes a difference. "Sharpening" the throttle plates potentially makes the idle problematic.

Still need to polish the bore before the throttle plates. Also clearanced the casting for a higher injector pod riser.

Every part you "polish" will have the protective plating removed, which means corrosion becomes another issue you need to deal with.

 

[Sam454]

Thinning the throttle shaft maybe makes a difference. "Sharpening" the throttle plates potentially makes the idle problematic.


Every part you "polish" will have the protective plating removed, which means corrosion becomes another issue you need to deal with.

The bottom edge is rounded to let air pass better . Sharpened wasn’t the best word as the top of the throttle plate was left untouched so it’s the same diameter. The steel on the throttle shaft will be painted. Also I thought all the aluminum was unplated. It should make its own oxide layer, right? I have the means to anodize if needed.

 

[Schurkey]

Anodizing is good.

 

[Minn95Dually]

Anodizing is good.

Yeah, lot's of colors to choose from. I just thought a tbi shined up would look cool (in a old school way).

 

[fancyTBI]

Anodizing would be really cool as well.

 

[Sam454]

Yeah, lot's of colors to choose from. I just thought a tbi shined up would look cool (in an old school way).

Probably going to use titanium

 

[Scooterwrench]

Yeah, lot's of colors to choose from. I just thought a tbi shined up would look cool (in a old school way).

I'm a sucker for blue!