DIY manifold
#261
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Hmm, interesting idea. I was too lazy to tear the manifold back off. I attacked it with a big cross cut file before I installed it so the leaking was at a minimum to begin with. As I've driven it, I've just gone back and retightened the head studs a couple times and all of the little exhaust leaks are gone now.
#267
The ones which goes into turbo housing are actually welded. It's definitely not the best solution in terms of thermal expansion, I agree.
Do you feel that is REALLY critical (even if I compensate by increasing the diameter of 3 holes on the turbo housing)?
I'm still in time for changing this item... and you have far more experience than me!
Do you feel that is REALLY critical (even if I compensate by increasing the diameter of 3 holes on the turbo housing)?
I'm still in time for changing this item... and you have far more experience than me!
#272
I really want BMC race to get back to me. I added a t25 flange to my order and they're literally telling me a price away from having my money. If I dont hear back from them by the middle of next week I'm taking my cad model copy of their premium flange, this piece of 1/2" 304 stainless I have kicking around and just making one myself.
#274
6$ sounds too many middlemen expensive for mild steel. (Locally 5/4 s235 elbows are about 1$ Pavol Mará)
#278
Incidentally, the picture posted shows 2 long radius bends all be it to different standards.
In SK/EU for whatever reason, stainless pipes are supplied in metric sizes to DIN 2506 and mild steel pipes are supplied in inches according to ASME.
DIN 2506 uses R=1.5d which is > than ASME long radius equivalent.
#280
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a 90 is a 90.
Radius doesnt really matter that much as compared to the friction caused by the length of the pipe and the surface of the ID of the pipe.
Generally fabricators will use all long radius though to keep costs down when they can.
I know that I use only long radius and I havent had an instance where i needed a tight radius yet.
Im sure something like a BMW turbo manifold or something similar in a VERY tight space may need a few of them.
Radius doesnt really matter that much as compared to the friction caused by the length of the pipe and the surface of the ID of the pipe.
Generally fabricators will use all long radius though to keep costs down when they can.
I know that I use only long radius and I havent had an instance where i needed a tight radius yet.
Im sure something like a BMW turbo manifold or something similar in a VERY tight space may need a few of them.