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+--- Thread: turbo relocation pipe size (/showthread.php?tid=31515)
turbo relocation pipe size - Chris_90 - 07-08-2015
What size pipe is best for a relocation pipe to put a turbo over the gearbox?
Also would it be best to open out the hole on the manifold to help the flow?
Thanks in advance.
RE: turbo relocation pipe size - silverzx - 07-08-2015
Some people gonna say 2" to help maintain spool/pressure, others gonna say 2.5".
If it were me, I'd go with whatever you already have plenty of.
If starting from scratch, I'd go 2.5", but that's just me. Most will say it's too large but I'd want to make sure it was future proofed for HX40 spool/pressures.
RE: turbo relocation pipe size - Piggy - 07-08-2015
2.5" I had. I would say my turbo made up for it.
2" is probably plenty. Remeber the bigger it is, the more air space you need to pressurise to get that turbine spinning
RE: turbo relocation pipe size - Nathan1305 - 07-08-2015
Sorry for the thread hijack. Would you say 2" is enough for my GT2056? Was just gonna make a pipe from the stock manifold to the turbo
RE: turbo relocation pipe size - Chris_90 - 07-08-2015
(07-08-2015, 08:42 AM)Piggy Wrote: 2.5" I had. I would say my turbo made up for it.
2" is probably plenty. Remeber the bigger it is, the more air space you need to pressurise to get that turbine spinning
The turbo im using is bigger than what you had on your car (I believe) ill see what ive got lieing around, got complete standard exhaust off the volcane I could use tho so id say that's around 2/ 2.25 inch
RE: turbo relocation pipe size - silverzx - 07-08-2015
2" should be fine for most turbos, TD04, GT20 etc.
RE: turbo relocation pipe size - Piggy - 07-08-2015
(07-08-2015, 08:48 AM)Nathan1305 Wrote: Sorry for the thread hijack. Would you say 2" is enough for my GT2056? Was just gonna make a pipe from the stock manifold to the turbo
Yeah be fine
RE: turbo relocation pipe size - Nathan1305 - 07-08-2015
(07-08-2015, 09:33 AM)Piggy Wrote:(07-08-2015, 08:48 AM)Nathan1305 Wrote: Sorry for the thread hijack. Would you say 2" is enough for my GT2056? Was just gonna make a pipe from the stock manifold to the turbo
Yeah be fine
Sweet I'll buy some 2" exhaust pipe
RE: turbo relocation pipe size - bashbarnard - 07-08-2015
I matches my pipe to what was coming off the manifold cant remember what size that was. To keep up gas velocity. Then 2.5 inch off the turbo. Seems to work pretty dam well to be fair.
RE: turbo relocation pipe size - craig306 - 07-08-2015
(07-08-2015, 09:39 AM)bashbarnard Wrote: I matches my pipe to what was coming off the manifold cant remember what size that was. To keep up gas velocity. Then 2.5 inch off the turbo. Seems to work pretty dam well to be fair.
i was going to say the same.
RE: turbo relocation pipe size - Paul Baldwin - 08-08-2015
(07-08-2015, 09:39 AM)bashbarnard Wrote: I matches my pipe to what was coming off the manifold cant remember what size that was. To keep up gas velocity. Then 2.5 inch off the turbo. Seems to work pretty dam well to be fair.
As said, match it to what you are working with. What's the point in using much bigger pipe to allow the gases to expand on leaving the manifold to then have to be re-compressed when it gets to the turbo?
Or do like silverzx says and use what you have access to, it'll work anyway.