2.4L Evo 9 custom Precision 6666 E85
2.4L Evo 9 custom Precision 6666 E85
So I just finished building this 2.4 for a customer. After getting it broke in. We we to dyno.
These pulls are on 39 psi
AFR is 12.2-12.3
this is Tephra SD
Mods:
2.4l
Wiseco HD pistons
Manley Turbo Tuff
O-ringed block
ARP L-19 Head Studs
King Bearings
Ported head
+1mm GSC Valves
GSC R2 Cams
GSC Dual springs and retainers
Bronze Valve guides
Precision 6666 turbo
Sheepy Forward Facing Turbo kit
twin turbosmart 40mm WG
ID2200 CC injectors
Custom -6 feed and return
Full Blown Double pumper with dual aeromotive 340's
Full Blown 70mm TB
Stock Ported Manifold
ETS short route piping With HUGE Sheepy FMIC
Grimmspeed 3port EBCS
Jacks Drag Transmission and Built T-Case
Quartermaster twin Disc Clutch with hydraulic TOB
RUNS are SAE corrected
Uncorrected it makes 845 WHP 689 WTQ
We will be upping the boost soon, We ran out of wastegate spring.
These pulls are on 39 psi
AFR is 12.2-12.3
this is Tephra SD
Mods:
2.4l
Wiseco HD pistons
Manley Turbo Tuff
O-ringed block
ARP L-19 Head Studs
King Bearings
Ported head
+1mm GSC Valves
GSC R2 Cams
GSC Dual springs and retainers
Bronze Valve guides
Precision 6666 turbo
Sheepy Forward Facing Turbo kit
twin turbosmart 40mm WG
ID2200 CC injectors
Custom -6 feed and return
Full Blown Double pumper with dual aeromotive 340's
Full Blown 70mm TB
Stock Ported Manifold
ETS short route piping With HUGE Sheepy FMIC
Grimmspeed 3port EBCS
Jacks Drag Transmission and Built T-Case
Quartermaster twin Disc Clutch with hydraulic TOB
RUNS are SAE corrected
Uncorrected it makes 845 WHP 689 WTQ
We will be upping the boost soon, We ran out of wastegate spring.
Thats alot of power Sir. It looks like the boost or back pressure could be an issue over 7000. The power is tapering . What exhaust housing is on it?
12.2-12.3 afr seems pretty lean . Did it make alot more power there vs 11.5ish to run it hot? Was it run that lean to combat an ignition issue? 11.5ish seems to work pretty well for the 4g63 head.
12.2-12.3 afr seems pretty lean . Did it make alot more power there vs 11.5ish to run it hot? Was it run that lean to combat an ignition issue? 11.5ish seems to work pretty well for the 4g63 head.
Thats alot of power Sir. It looks like the boost or back pressure could be an issue over 7000. The power is tapering . What exhaust housing is on it?
12.2-12.3 afr seems pretty lean . Did it make alot more power there vs 11.5ish to run it hot? Was it run that lean to combat an ignition issue? 11.5ish seems to work pretty well for the 4g63 head.
12.2-12.3 afr seems pretty lean . Did it make alot more power there vs 11.5ish to run it hot? Was it run that lean to combat an ignition issue? 11.5ish seems to work pretty well for the 4g63 head.
It picked up 20-25whp from 11.5 to 12.2
Egt are still safe
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Do you have a back pressure reading? Wish it was T4, you could go with a .96 housing.
It might need to be a little richer on the street/track to keep the cylinders cool and have more of a safety margin for hot days or extra load IMO. Congrats on making 900whp man.
It might need to be a little richer on the street/track to keep the cylinders cool and have more of a safety margin for hot days or extra load IMO. Congrats on making 900whp man.
On the dyno I had afr in every gear 12.2. When I took it on th street I ended up richening it up in higher gears for safety,11.7-11.8, and because the customer like to get on it a lot right now!
