Quote:
Originally Posted by Emily Hux
After backing up results with many runs on my stock GenIII I looked forward to the results of a customer car that had the same package but with mods:
Completely stock unbuilt motor 2.0 GenIII
HKS 264 cams
ACCEL dfi
Walbro 255 fuel pump
Hux air intake mod
3" single tip exhaust
93 octane- 289 rwhp / 297rwt @17 psi
100 octane- 305 rwhp / 333 rwt @19 psi
We modified the actuator and found the ct20b is quite responsive and easily made 30psi @ 4200 rpm (that is where we abruptly let out!).
This resulted with:
334 rwhp / 377 rwt @ 4200 rpm shutoff
Obviously the limits have not been found, please do not try this!!
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Great findings.
Did you modify the actuator with the "helper" spring that I suggested in the other thread? Or did you use another method? (please share if the other method how you did it).
I thought the CT20B would respond well if given a tight holding wastegate door. Nice to see it proven.
What boost was the 334whp/377rwt made at? I am assuming that run was made on 100 octane? Leanest AFR?
edit: just realized you said you made those numbers at "shut off", which I assume would be 4200 rpm, even for the 334whp? WOW if that it the case. At least we know the CT20B will flow enough air to make good numbers. It will be interesting to see what boost it can hold (and therefore power) until redline if you get the boost control sorted back out.