Does this Up Pipe look too fat ?
 

What is a good diameter for quick spool on the up pipe of a standard TD05 turbo running mid 300 bhp ?

Does this Up pipe look to fat of a bore size ? I notice is narrows at the turbo end, so having a big bore then narrowing, would that make it a good up pipe ?

I know its hard to tell from a pic but this one looks a bit on the chubby size, now wanting quicker spool I don't want to swap my standard up pipe for a laggyer one :Whatever_

cheers

http://i.ebayimg.com/images/g/n3UAAO...hY/s-l1600.jpg


http://i.ebayimg.com/images/g/FKEAAO...hc/s-l1600.jpg


http://i.ebayimg.com/images/g/E3AAAO...hU/s-l1600.jpg

cant tell from a pic but the design is ppor at best regardless of size / you need a Harvey Smith 'trick' up-pipe custom made to suit the job.............

no ideas who you could possibly be the sole manufacture of them mind :norty:

Ha not biased much lol

Why is it a poor design ?
I thought the wider bore to start with allows for large flow yet as it narrows reduces pressure to aid spool ? I'm no expert tho lol , haven't had chance to measure bore size yet

there is no expansion joint for a start and if it was the correct size there would be no need to crudely taper it at the top........