Evo X Red tuned on E85 @ AMS!!
You know I love you tephra, but it looks like most of the stock-ish cars are making peak torque of ~290 around 3500 RPM. This car makes 15-20 wtq less at that RPM, but continues to rise and rise and shoot to the moon! Seems like the red is a great compromise between power and spool.
Even comparing to this car https://www.evolutionm.net/forums/ev...aust-test.html it seems like you are only shifting the power 500-600 RPM to the right. I realize that is significant, but 500rpm is the blink of an eye (or a proper shift
).
This is all coming from a guy who is probably abandoning his Evo IX red plans since the car has been plenty of fun on the stock turbo lately.
Even comparing to this car https://www.evolutionm.net/forums/ev...aust-test.html it seems like you are only shifting the power 500-600 RPM to the right. I realize that is significant, but 500rpm is the blink of an eye (or a proper shift
).This is all coming from a guy who is probably abandoning his Evo IX red plans since the car has been plenty of fun on the stock turbo lately.
You know I love you tephra, but it looks like most of the stock-ish cars are making peak torque of ~290 around 3500 RPM. This car makes 15-20 wtq less at that RPM, but continues to rise and rise and shoot to the moon! Seems like the red is a great compromise between power and spool.
Even comparing to this car https://www.evolutionm.net/forums/ev...aust-test.html it seems like you are only shifting the power 500-600 RPM to the right. I realize that is significant, but 500rpm is the blink of an eye (or a proper shift
).
This is all coming from a guy who is probably abandoning his Evo IX red plans since the car has been plenty of fun on the stock turbo lately.
Even comparing to this car https://www.evolutionm.net/forums/ev...aust-test.html it seems like you are only shifting the power 500-600 RPM to the right. I realize that is significant, but 500rpm is the blink of an eye (or a proper shift
).This is all coming from a guy who is probably abandoning his Evo IX red plans since the car has been plenty of fun on the stock turbo lately.


And it looks like i am topping out at 4000ish for torque at 376.
Looking back at my graph though, i never really noticed, I think my clutch slipped at max torque, so I will probably be a little higher even when I get rid of the stocker.
Gotta compare corn to corn.
One catch, however: you should measure clearance between the valve tappets and the cam lobes. Service manual gives a procedure and a spec; if they any are outside that spec you should order the proper-sized replacement from Mitsu.
(4b11's don't have the oil-filled lash adjusters like the 4g63)
TractionLimit lucked out - his new cams were ground really well and the existing tappets weren't worn down, so clearances measured good and he didn't have to order new tappets.
Cams really aren't too bad on the X. The process is different than on the 8/9, but I think it's actually easier once you're used to both of them.
One catch, however: you should measure clearance between the valve tappets and the cam lobes. Service manual gives a procedure and a spec; if they any are outside that spec you should order the proper-sized replacement from Mitsu.
(4b11's don't have the oil-filled lash adjusters like the 4g63)
TractionLimit lucked out - his new cams were ground really well and the existing tappets weren't worn down, so clearances measured good and he didn't have to order new tappets.
One catch, however: you should measure clearance between the valve tappets and the cam lobes. Service manual gives a procedure and a spec; if they any are outside that spec you should order the proper-sized replacement from Mitsu.
(4b11's don't have the oil-filled lash adjusters like the 4g63)
TractionLimit lucked out - his new cams were ground really well and the existing tappets weren't worn down, so clearances measured good and he didn't have to order new tappets.
You will lose some driveability. Stop and go traffic basically sucks when trying to hold a steady 1500RPM-2000RPM. The car will buck bad. Holding a lower RPM actually isn't bad, and over 2,000 is fine. It does try to die out sometimes when on the brakes in neutral, but has never stalled.
I tested the cams along with the WGA and CAI. Between those things, peak torque comes about 300RPM sooner, and the tq curve is both broader and taller. This definitely helps spool-up a bit. That said, peak HP wasn't helped as much, and if I could do it again, I might have just tuned on E85 with stock cams first.
.
So you are only holding ~22-23psi at redline? Have you considered going back to ecu boost with 3 port to see if you can hold more? That doesn't seem like that much, I am pretty sure I have seen DOM2's hold more on pump, I am hoping to hold more like 25psi at redline on whatever I upgrade to.
So you are only holding ~22-23psi at redline? Have you considered going back to ecu boost with 3 port to see if you can hold more? That doesn't seem like that much, I am pretty sure I have seen DOM2's hold more on pump, I am hoping to hold more like 25psi at redline on whatever I upgrade to.

You know I love you tephra, but it looks like most of the stock-ish cars are making peak torque of ~290 around 3500 RPM. This car makes 15-20 wtq less at that RPM, but continues to rise and rise and shoot to the moon! Seems like the red is a great compromise between power and spool.
Even comparing to this car https://www.evolutionm.net/forums/ev...aust-test.html it seems like you are only shifting the power 500-600 RPM to the right. I realize that is significant, but 500rpm is the blink of an eye (or a proper shift
).
This is all coming from a guy who is probably abandoning his Evo IX red plans since the car has been plenty of fun on the stock turbo lately.
Even comparing to this car https://www.evolutionm.net/forums/ev...aust-test.html it seems like you are only shifting the power 500-600 RPM to the right. I realize that is significant, but 500rpm is the blink of an eye (or a proper shift
).This is all coming from a guy who is probably abandoning his Evo IX red plans since the car has been plenty of fun on the stock turbo lately.

. thanks for posting your results. i was really looking forward to this post. still not sure what route i am going to go. but nice tune anyways
Congrats on the numbers, the car must feel wicked.
Be safe bro


Be safe bro


Well, I've officially joined the Evo X E85 club. As expected, the FPRed has really come to life. Big thanks to Chris Black and the AMS crew as well as MidniteEco for the install help. 
451.8WHP and 432.8TQ @ 31PSI Daily Driver
FPRed ported
Kelford 214-B Cams
DW 1000cc inj.
AMS Fuel Rail
AMS inline pump
AMS MBC (all the way in)
AMS front motor mount
AMS Cold air intake
HKS WGA
UR intank Walbro kit
highflow cat
FMIC, O2 DP, CBE
ACT HDSS clutch

As you can see from this baseline the day before, bumping the boost from 25psi on 93oct to 31psi on E85 gained over 79whp and 89ftlbs:

I took it to the track last night, but the HDSS slipped pretty bad, so I left before getting a good run in. Short shifting and finishing in 5th gave me 117mph traps, so I expect mid 11s and 120s once I can get the power down. I'm also planning a final drive upgrade soon, so we decided to leave the limiter at 7900 to be safe.


451.8WHP and 432.8TQ @ 31PSI Daily Driver
FPRed ported
Kelford 214-B Cams
DW 1000cc inj.
AMS Fuel Rail
AMS inline pump
AMS MBC (all the way in)
AMS front motor mount
AMS Cold air intake
HKS WGA
UR intank Walbro kit
highflow cat
FMIC, O2 DP, CBE
ACT HDSS clutch

As you can see from this baseline the day before, bumping the boost from 25psi on 93oct to 31psi on E85 gained over 79whp and 89ftlbs:

I took it to the track last night, but the HDSS slipped pretty bad, so I left before getting a good run in. Short shifting and finishing in 5th gave me 117mph traps, so I expect mid 11s and 120s once I can get the power down. I'm also planning a final drive upgrade soon, so we decided to leave the limiter at 7900 to be safe.





