OST-019: Collaboration

[oldeskewltoy]

The clients head is so poorly cast, we jointly decided to replace his.
I checked my inventory on smallport head, all of them show some signs of poor placement... but a pair of mine have significantly less splitter mismatch. I chose one of those, and it is @ the shop getting cleaned.

oldeskewltoy Wrote:


WAAAAY too much FIPG/RTV... but there is far more wrong in there then just poor assembly

As bad as the bowl and seat are, or were.... the adapter my client is using (well known - name deleted) is poorly manufactured. There is a serious mismatch in the adapter as well.....





The gaskets I'm using are OEM Toyota... The ports are mis aligned by approximately 2.5mm. Now you can see the likely reason the gasket was not used in favor of the chemical sealant, the installer didn't want 2.5mm of gasket invading the airstream.

The problem isn't just the gaskets.... following are 2 views of the same port, one allowed to rest on the end studs, and one with the adapter pushed vertically on the end studs..

down


up


although it is better... the mismatch causes severely disturbed air, and not only is the bottom a problem, but with the roof of the adapter 2.5mm down, the highspeed, high pressure flow along the port roof and walls is significantly compromised.

I could port the top, and try to fill the bottom with a chemical compound...


and then I had a brainfart.... I'll slot all the bolts holes(about 4mm down), if need be I'll make the holes slots clean through. Once all the bolt holes are slotted, the 2 end holes I'll drill from the top(4mm bit), and cut 4mm threads through. then I';ll use 4mm bolts to raise the entire adapter to fit perfectly along the bottom, thus allowing me to have full clearance along the roof as well. I'll hand port any little discrepancies.


more to come......