Twin Scroll Turbo Divided Flange

uaeproz

Registered
Hey guys,

I’m planning to build exhaust manifold for a twin scroll turbo. I just wanna build it right so according to what I read, I should join 1st firing cylinder with the 3rd into one hole of the divided T3 flange and join the 2nd firing cylinder with the 4th into the organization hole of the T3 flange.

Gen 1 Hayabusa firing order (please correct me if I’m wrong on this fact) is:
- cylinder #1 stator side is the (1st) in the firing order
- cylinder #2 is (2nd)
- cylinder #3 is (4th)
- cylinder #4 is (3rd)

Does this mean I merge cylinder #1 and #4 into one hole on the T3 ... cylinder #2 and #4 the other hole?
 

202mphbusa

Donating Member
Registered
Seems I posted them on another site
I will post them later today when I get home. or look on the other site,
under time to change my sig line
 

202mphbusa

Donating Member
Registered
201.jpg
16780186_10158110981420004_233498076_n%201.jpg
 

202mphbusa

Donating Member
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500ish ?!?!?!?!

This thing starts spooling while turning 3,500 rpm down the road
that is part of the reason I struggled so much with a new fueling system
.....lets see here lets start with 100 in the table and I can start pulling fuel........ride down road bike keeps shutting off and bucking
I have 2-4 psi at cruise (2,500-4,000)and the 100 I put in the tables was WAY too much
old header/turbo didn't do this
 

airborneuph

Registered
Any boost creep with that design ? I realize that you can't get into the turbo housing with the waste gate with the dual scroll turbo.
 

202mphbusa

Donating Member
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I get a .5-.75 psi "overshoot" then she holds perfectly
I have run from 2PSI to 18 PSI ...................SO FAR
 

202mphbusa

Donating Member
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I just put the motor together, with a Completely new turbo, header and fueling system
I rode it with no gate spring and 2psi on the AMS1000 Brand new setup, you have to start somewhere.
AND WFO from the get go could have been very expensive
 
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