T2860(disco potato) vs T2871
- Thread starter projectgtir
- Start date
Trip
New Member
What was the difference between both dyno runs apart from turbo ?
Boost seems 3 psi less,
Did you have same turbo elbow, down pipe, ecu tune etc.. ?
Do you have a torque graph too ?
There is around 65bhp difference between the two which in my opinion there should be not more then 40bhp
Boost seems 3 psi less,
Did you have same turbo elbow, down pipe, ecu tune etc.. ?
Do you have a torque graph too ?
There is around 65bhp difference between the two which in my opinion there should be not more then 40bhp
Yeah your right sorry i forgot to mention the boost was higher as seen on the graph i was just giving an example of how long it took to get to the same pressure (1.2ish) and as you can see it was an extra 500rpm.
In answer to what else was different i think it was only turbo elbow and turbo that differed, in which case that means if i had only changed the turbo it probably would have been more than 500rpm different.
I have separate torque graphs but not on the same page.
Well in that case i certainly wouldnt be installing anything above a 2860 without an uprated elbow. I knew the oem elbow could have been improved but i was unaware it would make as much difference to spool up as you're saying it will.
Im assuming the turbo went due to increased boost pressure and milage, everything else was fine (pipes etc.)
Im assuming the turbo went due to increased boost pressure and milage, everything else was fine (pipes etc.)
I
iomegalinux
Guest
so many R owner need a new turbo and a new elbow 
would sound like a good group buy hehe
but thank frit for the dyno sheet.
would sound like a good group buy hehebut thank frit for the dyno sheet.
Sorry if this redirects the thread a bit, but I need an aftermarket elbow to fit a roller bearing big wheel T28 using std manifold casting and mongoose. What do I buy?
Regards,
Jon
(the lag out of chicanes is killing any benefits I get with the bigger turbines: tarmac rally)
Regards,
Jon
(the lag out of chicanes is killing any benefits I get with the bigger turbines: tarmac rally)
Trip
New Member
At what RPM do you exit the chicanes ? Here locally, chicanes are mainly placed in the middle of a long strech to limit top speed. After seeing lots of footage it is evident that other drivers put in first gear to keep rpm's high.
http://www.youtube.com/watch?v=3DJbiE_tOFk
this is one of the chicanes i am talking about. scroll to 0:50sec and you see me. On exiting you can hear the engine is at low RPM (in second gear), i blipped the clutch (00:57sec) to gain a little more rpm. To say everything, my car wasn't at its best there and had already signs of problems and boost was coming late (12psi at 4800rpm). For this reason (chicanes) i am heavily considering downsizing to a GT2860RS.
I am using an AM elbow and downpipe which in my opinion is not the best out there. It is not 3" diameter end to end. Fast Guy posted above he just installed a CES split dumppipe http://www.cesracing.com.au/index.htm .