Midnight23 Greddy Turbo Kit 270whp ***Evasive Tuned***

[Pablitomarrero]

Originally Posted by sw20kosh

Evassive said:



so 7 psi creeping up to 9-10 psi

So im guessing they had to install a modified actuator then right? The kit wont let you go past 7psi! It opens the wastegate. And what does he mean w better airflow? Does he mean the exhasut mods are making it creep up? Im a noob... Excuse my nubiness


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[sw20kosh]

Originally Posted by Pablitomarrero

So im guessing they had to install a modified actuator then right? The kit wont let you go past 7psi! It opens the wastegate. And what does he mean w better airflow? Does he mean the exhasut mods are making it creep up? Im a noob... Excuse my nubiness


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No, same actuator. Just because a wastegate is rated to 7 psi doesn't mean it will hold 7 psi.

If the wastegate is too narrow/small it won't be able to vent the necessary exhaust gas which will allow all that extra gas to go through the turbo's turbine. This causes higher boost pressures than desired and manifests as "creep". The solution is A. run a higher wastegate spring (if you are ok with the higher psi level) or B. enlarge the wastegate (which is hard to do on an internally gated turbo).

When you free up the exhaust significantly, you increase the efficiency of the turbo and you may gain some psi from that.

[Pablitomarrero]

Originally Posted by sw20kosh

Just because a wastegate is rated to 7 psi doesn't mean it will hold 7 psi.

If the wastegate is too narrow/small it won't be able to vent the necessary exhaust gas which will allow all that extra gas to go through the turbo's turbine. This causes higher boost pressures than desired and manifests as "creep".

Ah i understand . Thank you. At least I havent observed any creep in mine, my gauge reads 7 maybe 8 at some point almost redline. Anybody know exhasut diameter @midnight23 is running?


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[sw20kosh]

Originally Posted by Pablitomarrero

Ah i understand . Thank you. At least I havent observed any creep in mine, my gauge reads 7 maybe 8 at some point almost redline. Anybody know exhasut diameter @midnight23 is running?


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Also, exhaust diameter is only one thing. You have to look at:

1. # of exhaust bends
2. bend angles
3. are the pipes mis-aligned at the flanges causing turbulence
4. type of muffler

My guess (if your exhaust is adequate) that the discrepancy in power between the two of you is primarily tuning based and also the extra 2-3 psi.

[Pablitomarrero]

Originally Posted by sw20kosh

Also, exhaust diameter is only one thing. You have to look at:

1. # of exhaust bends
2. bend angles
3. are the pipes mis-aligned at the flanges causing turbulence
4. type of muffler

I am also running a high flow cat so that probably has an effect on my overall #'s... Positives of this is my car doesnt stink lol


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[midnight23]

Originally Posted by Pablitomarrero

Ah i understand . Thank you. At least I havent observed any creep in mine, my gauge reads 7 maybe 8 at some point almost redline. Anybody know exhasut diameter @midnight23 is running?


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2.5" straight no cats / resonators to 2.75" catback

Psi 10-11

[Pablitomarrero]

Originally Posted by midnight23

2.5" straight no cats / resonators to 2.75" catback

Psi 10-11

Awesome that means I have potential . Did they switch out the wastegate for a higher one? Or is it the boost creep


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[midnight23]

Originally Posted by Pablitomarrero

Awesome that means I have potential . Did they switch out the wastegate for a higher one? Or is it the boost creep


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Nope turbo is unmodified it's just tuning and boost creep

[SoCal909]

Originally Posted by midnight23

Nope turbo is unmodified it's just tuning and boost creep

hey man nice to meet you today, your car is pretty dope i'm jealous

[midnight23]

Originally Posted by SoCal909

hey man nice to meet you today, your car is pretty dope i'm jealous

Appreciate it, enjoy your coils!

[Pablitomarrero]

@midnight23 Whats your average mpg at? Have you noticed significant gas cosumption with the larger injectors/fuel pump?


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[midnight23]

Originally Posted by Pablitomarrero

@midnight23 Whats your average mpg at? Have you noticed significant gas cosumption with the larger injectors/fuel pump?


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Surprisingly enough I'm getting better mpg than my NA setup. I average 30-32 highway so far that is with 4 pulls. It's really great ! I was using a 1/4 tank to go to LA and back and now it's less than that.

[Pablitomarrero]

really? awesome. Thats more or less what im getting. I guess you only use up alot more gas at WOT

[midnight23]

Originally Posted by Pablitomarrero

really? awesome. Thats more or less what im getting. I guess you only use up alot more gas at WOT

Yea I did about 80 miles of stop and go cruising yesterday and average dropped to 27~ using about 1/4 tank so i'm quite surprised with how little it uses.