View Full Version : RB26DET - Single Turbo Swap Plumbing Greddy T78.
TurboSE
01-15-2010, 12:58 PM
RB26DET - Single Turbo Swap Plumbing Greddy T78.
Greddy T78, non-water cooled, non-BB. External wastegate...will these work?
http://i110.photobucket.com/albums/n112/TurboSE1980/Driveside1.jpg
#1 oil return from turbo - 3/4BSP or 3/4NPT? Is 12AN too big for an oil drain?
#2 oil supply to turbo - M12x1.0 to 4AN? Do I need a restrictor for non-BB?
#3 oil return from turbo - Blocked.
#4 water from turbo. - Not needed for non-water cooled turbo?
#5 boost pressure - To external wastegate?
#6 sense line from turbo inlet to boost pressure control solenoid - To boost controller?
#7 water to turbo - Blocked on non-water cooled turbo?
Thanks in advance!
Zacho
01-15-2010, 01:19 PM
Oil feed should be 12x1.25mm if I recall correctly. On a non ballbearing turbo, when you go to buy the fitting for the turbo you just buy the one made for a journal bearing/not GT bb. Like so: http://www.atpturbo.com/mm5/merchant.mvc?Screen=PROD&Store_Code=tp&Product_Code=ATP-OIL-022&Category_Code=ATP-OIL1
Oil drain is 3/4 BSP. Not a very cheap fitting.
TurboSE
01-15-2010, 01:32 PM
Oil feed should be 12x1.25mm if I recall correctly. On a non ballbearing turbo, when you go to buy the fitting for the turbo you just buy the one made for a journal bearing/not GT bb. Like so: http://www.atpturbo.com/mm5/merchant.mvc?Screen=PROD&Store_Code=tp&Product_Code=ATP-OIL-022&Category_Code=ATP-OIL1
Oil drain is 3/4 BSP. Not a very cheap fitting.
So I just buy the one that fits, gotcha.
And yeah, that fitting isn't cheap, about $30+shipping from Pegasus....I know a guy in AUS, that can get it for me for $5AUD + $60AUD shipping, but I can get a lot of them for 1 shipping fee if you know anyone interested.
You wouldn't happen to know if the coolant outlet on the rear intake side of the block is BSP also?
Thanks for your help!
mcfly
01-15-2010, 02:03 PM
You cant go too big on an oil drain. you often see guys sucking the oil out of a turbo with a dry sump pump setup.
You want a restrictor
.065 like the one zach posted.
remove 4/5/6/7 lines if you have an oil cooled turbo and make your own wastegate lines. Keep all of that on the right side of the engine bay if as it will be a better response from the wastegate and less to go wrong.
bsp to an
http://www.earls.co.uk/earls/adapters/antobsp.html
I cant tell you if the other side is bsp or not unfortunately. Maybe someone else can.
TurboSE
01-15-2010, 03:17 PM
Thanks for the great info McFly, gonna really simplify my pumbing! The fitting from Earl's UK is around $48US + shipping...ouch
mcfly
01-15-2010, 07:00 PM
Yeah, try and find the same fitting from anplumbing or titan
TurboSE
01-15-2010, 07:28 PM
didn't see it on either of those sites, maybe I missed it....$28 from Pegasus...prolly not gonna get it much cheaper
rb-racer
01-16-2010, 09:29 AM
I find you need to email people for best pricing and rare pieces. Typically they carry other things but do not stock them.
vBulletin® v3.8.3, Copyright ©2000-2012, Jelsoft Enterprises Ltd.