anybody had much to do with these tubs , as i bough some a while ago from the usa via my dead mate jaypsc and believe they are bb type, but as they were secondhand and done supposedly 3k i had em stripped and inspected, and have decided to have the 360 degree cartridges fitted,

 

question1,,is there likely to be any different spool up time

is just the usa that prefer bb versus 360 and why?

as my very experienced turbo specialist prefers 360 as being bullit proof

but is that at a loss of performance??

rich

so i take it nobody knows then lol

i thought the 650's were thrust washer type?! the new JWT 700's are bb's

 

bb's spool up quicker compared to thrust washers

Yep, I thought BB turbos were better than 'normal' thrust bearing type.

BB type spool up quicker so less lag. Also the theory is that the bearings generaly last longer because the ball bearings cause less friction than the 360 shell type bearings, they are bathed in oil, generate less heat so can spool to higher reverlutions without failure and have a much stonger seals so they can hold higher presures.

there seems to be conflicting theory as the guy whos been building turbos for 30 yrs told me the 360 cartridges hes fitted are stronger and will take more hammer than the bb type, unless there is 3 types , what is the type fitted to the 650 if the 700 are bb???

rich

what is the type fitted to the 650 if the 700 are bb???

rich

 

Wont the guy who rebuilt your 650's be able to answer this as he has taken them apart and surly should know what he has pulled apart??? :confused:

yes if i wasn't speeking to him via 3rd party,as hes a guy my mate knows very well , but my mates not very technical, so i suppose i'll have to speak to him direct lol

 

 

 

 

QUOTE=takemetothepub]Wont the guy who rebuilt your 650's be able to answer this as he has taken them apart and surly should know what he has pulled apart??? :confused: