Waterboard
Member
- Joined
- Aug 23, 2017
- Messages
- 119
Does anyone ever clean the inside of the inlet manifold?
I do this every 10k miles or so, or on a tear down.
I don’t know if this is common knowledge but there’s about 2bhp pretty much across the engine rev range by about 3 hours work on both sets of inlet manifolds with particular attention to pots 1 and 4...
They are the tracts that are always in worst condition suggesting velocity is down. This would lend itself to a less than ideal tract shape so it’s worth getting the dremel out and blending some of the casting back.
Remember, leave it coarse on the inside of a bend and polish on the outside - helps it all along
I do this every 10k miles or so, or on a tear down.
I don’t know if this is common knowledge but there’s about 2bhp pretty much across the engine rev range by about 3 hours work on both sets of inlet manifolds with particular attention to pots 1 and 4...
They are the tracts that are always in worst condition suggesting velocity is down. This would lend itself to a less than ideal tract shape so it’s worth getting the dremel out and blending some of the casting back.
Remember, leave it coarse on the inside of a bend and polish on the outside - helps it all along