When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The 7163 while a great turbo on paper doesnt work well on vehicles with good VE. It can make good power but is extremely difficult to control, I DO NOT recommend the T4 twin IWG housing at all under any circumstance. Past that the turbo makes power about like an FP Red.
John, I'd be interested in why you wouldn't recommend the t4 under any circumstance. What do you mean by hard to control (I'm guessing you mean boost)
I've got the t4 and it's a great turbo. The reason I got this is because I wanted a responsive turbo on the stock motor and it's the only turbine housing from 7163 up that is common across the efr range. Which means I can now switch to any turbo I like.
On the stock motor it holds boost flat to red line without issue. The actuator did need to get changed to a turbosmart as the one that came with it was getting the flapper blown open
The drawback on the t4 is the size of the turbine housing if you want to use it on a larger motor. I'm now using it on a 2.2 and I've hit the limit on how much it can flow. The shaft speed is at 110krpm and unfortunately can't push any more through it. With that being said it's not sluggish by any means. It's like driving a super charger. You'll never find yourself in a situation where you have no boost.
It actually makes the car easier to drive as the power delivery is very linear even under 3k. On the stock turbo the car is gutless until 3000. With the 7163 it just builds power from any rpm
The turbo was held back on the stock motor as the evo 7's are meant to have weak rods. I did blow my motor, but it was due to fuel surge on the track not the rods.
blue 98ron, red e85. No timing changes were made on the e85 tune till 6000. As you can see the tune was restricted to 400(98) - 425(e85) nm
So, you are making ~300kw at the wheels, on Mainline Dyno, at 25psi circa peek boost on E85. Engine is 2.2 liter.
That is ~400whp at 25psi, peeking at 7500rpm - which means you have power raise throughout the RPM range.
It seems you spool fully by 3600-3700rpm?
Its hard for us to relate to Mainline Dyno numbers, perhaps you could help us by quoting what does a bone stock Evo 8 or Evo 9 make on the same dyno?
Or Evo 7, that would be fine.
I suspect Mainline you are using reads like "true" Mustang: on MD stock E8 makes 205-210whp, and stock E9 makes 215whp, while Evo X makes 225whp. To help comparison.
Let us know, truly awesome to hear how well EFR7163 worked for you.
Those results were on the stock motor. Yep full boost by 3600 23psi.
Mainline reads 15% lower than a dynojet. This is an efr 8374 on the same dyno. Unfortunately don't have stock numbers sorry.
Still waiting to get the results on the 2.2 (Should have them tomorrow), but from what I've been told it makes 28psi and 400 ft lb by 3500. Couldn't get it past 462hp due to the small turbine housing. As mentioned 28psi is 110krpm shaft speed at 7000rpm. Max shaft speed for this turbo is 150krpm, so plenty left in it with a larger turbine housing.
I should be going out this weekend to do a heap of logging, but that won't be on the stock motor as the OP requested.
Got a bit a logging done over the weekend and played a bit with response cruising on the freeway. It makes full boost in 5th at a touch before 3400. I had it wrong with what I mentioned earlier as well. It's actually only at 26psi and it's currently running E58
I thought this would be a good graph to give you an idea of response instead of just seeing another power run.
This is driving at part throttle on the freeway in 5th just modulating the pedal. Notice the rpm range is between 3000 and 3400 and the boost still pretty much traces the TPS. Yes this is on a 2.2, but I haven't really noticed a difference in regards to response when comparing to the stock engine.
Agreed this isn't a turbo if you are going for outright power, It's more for something that is used for a wide range of uses outside of drag racing (street, autox, circuit etc).
We are speaking of EFR7163 T4,
Yet you mention EFR 8374.
You also state you peeked at 110K RPM, and topped out, yet you also stated as BW advises peek RPM allowed is 150K.
You have 40K rpm to go, you have headroom.
Maybe you can clarify a bit things.
As far as response, boost following TPS is about as great as it gets.
We are speaking of EFR7163 T4,
Yet you mention EFR 8374.
You also state you peeked at 110K RPM, and topped out, yet you also stated as BW advises peek RPM allowed is 150K.
You have 40K rpm to go, you have headroom.
Maybe you can clarify a bit things.
As far as response, boost following TPS is about as great as it gets.
The OP was the one referring to the 7163, I actually really like the 7163 which I thought Chad from CBRD had come out with a kit for evo8 and 9 which I would of bought had he came out with it sooner, but I’m happy running the BBK-3B!!
We are speaking of EFR7163 T4,
Yet you mention EFR 8374.
You also state you peeked at 110K RPM, and topped out, yet you also stated as BW advises peek RPM allowed is 150K.
You have 40K rpm to go, you have headroom.
Maybe you can clarify a bit things.
As far as response, boost following TPS is about as great as it gets.
Sorry for the confusion, I mentioned the 8374 in relation to your question about the dyno. The 8374 isn't my car, it's just another example on the same dyno to give a bit more of an idea of how the mainline reads. I don't have any examples of how a stock car looks like on the same dyno, so that was the best I could do. Just ignore it and go by the comment "Mainline reads 15% lower than a dynojet"
I should be able to push the turbo to 150k yes, but due to the size of the housing we weren't able to get it to flow any more as it hit it's flow limit. Unfortunately I don't have any sensors that can show what the back pressure looks like. On a 2L you might be able to get a bit more out of it.
How do you know you hit flow limit?
Because the boost is not raising?
You have no sensor..so I think ...as usual the OEM BW WG Actuator is not stiff enough, and your OEM BOV is also leaking..
You need Turbosmart dual port WG Actuator and turbosmart BOV for BW ...
Please check discussions about that.
All you can get is usually 25-26psi on stock actuator, and BOV is also not the best.
Once you upgrade both, you can likely push to much higher boost and run happily.
Kikiturbo will likely chip in with some more info...I have his 7163 T4 kit.
With the OEM BW WG Actuator I wasn't even able to make 18psi so I've already changed to a turbosmart Actuator, but it's not the dual port version. It's also still on the stock BOV.
Thanks for the tip I'll have to see if I can track down those threads.
Might need to wait until I can upgrade my rear diff though as I don't know the AYC diff will be happy with any more torque.
I managed to get this off my tuner. As you can see the boost is dropping after 5000 so you may be right.
Apr 17, 2018, 12:50 PM
