Intake manifold - lowport P10
Last year while I installed the thermoblok spacers, I took the chance to clean the intake manifold. Both pieces (together with the TB) were very nasty on the inside, but I made them shining.
One year later, I took of the upper manifold piece (for injectors inspection) and I found out something weird.
As you can imagine, the manifold was not that shiny anymore and it had some dirt, but nothing impressive.
On the lower piece I found difference in the dirt in runners 1&2 compared to runners 3&4. Then I double checked with the upper piece and I saw that difference as well.
Probably this is the reason why later RR manifolds are different. Lowport heads might be flowing good, but I think intake manifolds definitely are not.
ImageShack Album - 4 images
And this is my engine:
One year later, I took of the upper manifold piece (for injectors inspection) and I found out something weird.
As you can imagine, the manifold was not that shiny anymore and it had some dirt, but nothing impressive.
On the lower piece I found difference in the dirt in runners 1&2 compared to runners 3&4. Then I double checked with the upper piece and I saw that difference as well.
Probably this is the reason why later RR manifolds are different. Lowport heads might be flowing good, but I think intake manifolds definitely are not.
ImageShack Album - 4 images
And this is my engine:
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