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BR, 2.4, high hp/high rpm build?

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Old Oct 27, 2009 | 07:29 PM
  #46  
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Originally Posted by PaperClip
I would love too but I am in Maryland ftl
you the one ridin around the ocean pines area
?

Just curious
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Old Oct 27, 2009 | 07:59 PM
  #47  
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I hate you Tim. Glad I could help fund this by purchasing your turbo kit you lucky bastard lol
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Old Oct 28, 2009 | 02:38 AM
  #48  
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Originally Posted by Mike@AwdMotorsports
I hve a t3 turbo making power to 10k.. depends on what T3..

As we discussed a few weeks ago, the rod stroke ratio on the straight 2.4 is good for 9k i am sure.. Lets get something going with some 10:1 pistons..

Mike

Your t3 turbo (pt67-65) is making power to 10K on a 2.0L engine.
2.4L engine is 20% bigger, accordingly your turbo will work as hard
at 8K as it is right now at 10K rpm (everything else being constant).

If any T3 turbo is going to make it that would be the pt67-65, but i doubt you'll see any gains revving it to 9K
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Old Oct 28, 2009 | 05:15 AM
  #49  
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Originally Posted by darwin_evo
Your t3 turbo (pt67-65) is making power to 10K on a 2.0L engine.
2.4L engine is 20% bigger, accordingly your turbo will work as hard
at 8K as it is right now at 10K rpm (everything else being constant).

If any T3 turbo is going to make it that would be the pt67-65, but i doubt you'll see any gains revving it to 9K
Have any proof to back up your statement?
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Old Oct 28, 2009 | 05:31 AM
  #50  
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From: Massachusetts
Originally Posted by JohnBradley
but nothing that goes to 9k regularly seems to go 100,000 miles anyway.
Besides a Wankel that is

Originally Posted by Mike@AwdMotorsports
Lets get something going with some 10:1 pistons..
That is exactly what i was thinking. Very interesting build, i wish i had the cash to donate my car for it.
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Old Oct 28, 2009 | 05:46 AM
  #51  
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How well do you guys think it would do on the strip as far as revving goes or should you just stick to the 2.0 or 2.1L?

Now what about longevity? Normal driving, strip every so often?

2.4L sounds interesting.
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Old Oct 28, 2009 | 05:50 AM
  #52  
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Subscribed....

I love my 2.3L, I couldnt imagine a 2.4. Good luck David!
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Old Oct 28, 2009 | 05:55 AM
  #53  
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Originally Posted by MR Turco
Besides a Wankel that is



That is exactly what i was thinking. Very interesting build, i wish i had the cash to donate my car for it.

Just a side note I had David build me one of his first builds ( 2.0, head, AEM, Ect.. ), on my first EVO8. Back in 2004 I was just recently contacted by the new owner to see if I wanted to buy it back.....if I only had the money to own 2 .

Oh I almost forgot it has 75K miles on it..... so if done right Im sure it will last.
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Old Oct 28, 2009 | 08:12 AM
  #54  
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I thought I remembered Robert at FP telling me that he considered a 2.3L to have the airflow at 8000 that a 2.0L has at 8500 rpm. So just because 2.4 is 20% more displacement, I'm not sure it's as simple as multiplying the rpm's by 20%.
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Old Oct 28, 2009 | 08:41 AM
  #55  
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Airflow isn't linear.
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Old Oct 28, 2009 | 09:37 AM
  #56  
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So what are the 2.0L, 2.1L, 2.3L revving to?

Sorry still learning about evo's. So the 2.4L will hopefully rev to 9,000rpms. Or should say that's the goal.
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Old Oct 28, 2009 | 09:57 AM
  #57  
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Originally Posted by EVO8GIXXER6
So what are the 2.0L, 2.1L, 2.3L revving to?

Sorry still learning about evo's. So the 2.4L will hopefully rev to 9,000rpms. Or should say that's the goal.
http://www.kidzuku.com/StrokeOrNot.pdf This is quite good reading.
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Old Oct 28, 2009 | 11:16 AM
  #58  
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Originally Posted by MR Turco
Besides a Wankel that is
They only go 60k before the burn down cause of port coking... But I know what you mean.
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Old Oct 28, 2009 | 12:12 PM
  #59  
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I can't wait to see what happens with this!
A 2.4 would be awesome on the street.

-Jalal

Last edited by MJ23FE; Oct 28, 2009 at 02:55 PM.
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Old Oct 28, 2009 | 12:16 PM
  #60  
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I can't answer questions on longetivity or anything else. This will be the first one we built and until I build it, test it and see how long it lives I can't say.

The 2.0 builds we've done will go over 10,000 rpm without an issue. The 2.1's technically will rev even higher than that and so far seem to be working out very well. The 2.3's I recommend a maximum rev limit of 8500 rpm.

The truth of the matter is 1 in about 4,000 EVO owners need an engine that goes to 10,000 rpm. Maybe even less than that. I believe in setting the rev limiter about 50 rpm higher than the RPM required to cross the finish line in 4th gear in the 1/4 mile. So if your car can do that at 7500 rpm then you need a rev limiter set about 7550.
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