MAP EF2.5 tuned by Cobb Tuning - Plano
All I was saying was the EF2 can still window a block if you don't tune correctly.
Bottom line, smart tuner ftw.
detuned the ef3 is safer for the stock bottom end because of the turbo lag, you dont get the massive tq spike that the faster spooling turbos give you in the lower rpm range. that being said you also lose alot of potential in the powerband due to the increased lag so really its apples to apples the top end is nearly the same 2.5 vs safe tune for stock bottom end ef3 but the powerband is broader with the 2 and 2.5. unless your cammed then thats another story, in wich case i wonder why you wouldnt just build the bottom end and utilize that ef3's potential or a ef4.
shooting for monday and tuesday to put mine back together, hoping the weather is warmer for those days.
shooting for monday and tuesday to put mine back together, hoping the weather is warmer for those days.
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I'm going to get a turbo so big it never spools for max safety. MAP EFinfinity.
This argument is stupid; of course something detuned is going to be safer, if that's the game you want to play just leave the car stock, or better yet, get yourself a base Lancer.
I'm going to continue sticking with the plan that's kept my IX and X very reliable over the years; smallish stockframe turbos, maxed out on pump gas, with great response.
This argument is stupid; of course something detuned is going to be safer, if that's the game you want to play just leave the car stock, or better yet, get yourself a base Lancer.
I'm going to continue sticking with the plan that's kept my IX and X very reliable over the years; smallish stockframe turbos, maxed out on pump gas, with great response.
Last edited by Kracka; Jan 24, 2013 at 06:08 AM.
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...
The stock Evo X internals can hold over 450 HP and 400 TQ all day with no issues if properly tuned. Your complaining... that the internals from the factory....??? which already BONE stock make and maintain more HP PER LITER than any other car currently made.... You show me another PRODUCTION made car... even the Bugatti that has more I'll buy you lunch sir..
It gets old when people expect the car to make 1000 HP from the showroom floor. If "almost" anyone blows their motor with a stage 2 and tune... its 99% of the time.. the tuners fault.
It gets old when people expect the car to make 1000 HP from the showroom floor. If "almost" anyone blows their motor with a stage 2 and tune... its 99% of the time.. the tuners fault.
Last edited by Kracka; Jan 25, 2013 at 06:53 AM. Reason: being nice
What i have learned from the past page of this thread...
Do not disagree with Kracka even if you are right and so does everyone else.
(this post will probably last 1.5 mins before he deletes it).
Do not disagree with Kracka even if you are right and so does everyone else.
(this post will probably last 1.5 mins before he deletes it).
I'd definitely say an EF3 is safer than an EF2/2.5, tuned to the same power level (say 420whp for this example.) The EF3 will spool a bit slower, so the torque hit won't come on as fast or as low in the RPM range for the sake of the rods. High low end torque kills our rods. Also, it will make that 420whp on less boost, so the air charge will be cooler, again making it safer. There is nothing safer about the EF2/2.5
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Yes, we've already established than a detuned turbo is safer than a fully tuned turbo. That is common sense. I am not going to spend all this time and money modifying car to take anything less than full advantage of a setup though. If that was my plan, I would just leave the car stock since that's about as reliable as it'll get.
You also need to realize that boost isn't the same thing as airflow; boost is a measure of restriction.
So, by your theory, the stock turbo is the least safe choice for the car, correct?
We obviously disagree though, which is fine, the world will still turn tomorrow (probably)
You also need to realize that boost isn't the same thing as airflow; boost is a measure of restriction.
So, by your theory, the stock turbo is the least safe choice for the car, correct?
We obviously disagree though, which is fine, the world will still turn tomorrow (probably)
Last edited by Kracka; Jan 25, 2013 at 11:37 AM.
Yes, we've already established than a detuned turbo is safer than a fully tuned turbo. That is common sense. I am not going to spend all this time and money modifying car to take anything less than full advantage of a setup though. If that was my plan, I would just leave the car stock since that's about as reliable as it'll get.
You also need to realize that boost isn't the same thing as airflow; boost is a measure of restriction.
So, by your theory, the stock turbo is the least safe choice for the car, correct?
We obviously disagree though, which is fine, the world will still turn tomorrow (probably)
You also need to realize that boost isn't the same thing as airflow; boost is a measure of restriction.
So, by your theory, the stock turbo is the least safe choice for the car, correct?
We obviously disagree though, which is fine, the world will still turn tomorrow (probably)

And a torque spike from stock turbo is more likely to break a rod than an EF3 where torque ramps in nice and smooth, yes. Especially on E85, or someone who WOT's 5th gear down low, etc.
they make different sized turbos for different power levels and desired powerbands for a reason. you don't (or shouldn't rather) buy a bigger turbo to make your motor safer. you buy a turbo based on your desired power level within it's efficiency range.
as far as smaller turbo, it can be tuned to your desired torque level by simply tuning the wgdc, desired boost levels, mivec properly. just because you may have a stock turbo running at 27psi doesn't mean you HAVE to spool it's ***** off by 2999 rpm. you can ramp it up as gently or aggressively as you want.
as far as smaller turbo, it can be tuned to your desired torque level by simply tuning the wgdc, desired boost levels, mivec properly. just because you may have a stock turbo running at 27psi doesn't mean you HAVE to spool it's ***** off by 2999 rpm. you can ramp it up as gently or aggressively as you want.
Last edited by momostallion; Jan 25, 2013 at 01:16 PM.


