Downpipe
By ltizzy
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This downpipe was made by Doug Smith of Fairlady Motors. This is a recent picture (about 2 years of use). The TiAl wastegate is not really visible there, but it is stuck underneath. I went for their "Hybrid" wastegate - smaller hole with bigger diaphram. Despite the common misconceptions - the higher the boost the smaller the bypass you want.
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I know a few people were following along on this- been a while since I last posted here- but finally all came together!
Mounted up and running strong! Still a few details to work out; but runs good, sounds good, feels good on the initial pulls. Super happy it worked out!
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Well I decided to go for it -
Went with 42's and a TWM manifold. Still lots to sort out, but Ill start another thread on it somewhere and link it back here. Rought calculations hopefully put it in between an OER setup and a Mikuni PHH setup $wise.
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By duffymahoney · Posted
I would probably do them in pairs, then each pair goes to a common shaft.
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Part of running a single shared throttle shaft was for a super clean look- like how datsun_tokyo linked above has it.
I also still haven’t decided on the manifold- but was planning on the TWM one- seems to be the cleanest and allows me to run without all the linkages.
With that said I’m interested- I’ll shoot you PM.
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