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Why do 2.4L's have such random failures?

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Old Sep 2, 2012 | 07:36 PM
  #61  
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You have to realize that this forum is not harsh on new people unless they join the forum and immediately start spreading false information like the plague.

You've done nothing so far but claim that people shouldn't do cams, God knows what you were trying to prove in your thread about how you can't quote Fast and the Furious, etc.

My point is:

It would be one thing if you were on here trying to learn; we'd be glad to help you. However, you joined the forum posting asinine things that are completely wrong and arguing about them for days.

I'm not even one who knows a lot about this stuff, but it's extremely bothersome as you're putting all of this foolish information out there that, if new, you're not going to know what to believe and it complicates the hell out of decision making for people doing research.
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Old Sep 2, 2012 | 07:49 PM
  #62  
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Exclamation Read the O.P title:

^ You read the O.P. title to this thread, don't you??? Cause he titled it as: ''Why do 2.4L's have such random failures?'' I did not see that he is asking It's true or not that 2.4L's are good or bad etc. but what I read in his title is that he is just asking why, so he is assuming that the 2.4L's have such random failures like a FACT; so if we start from that premise, then if you want to blame someone, start by the O.P. title but not me.

I respect your opinions and replies, so I hope you also respects mine. If I am such wrong, then anyway no one will follow my ''wrong info'', but I am not the only person that you will find wrong, in every thread and posts, are people who believe and defend an idea, and are other people who goes against same idea; that's precisely why this is a called a FORUM, or do you forget the meaning of that word? or do you forget that you are at a freedom of speech place?

Last edited by Jos_iQRacingEVO; Sep 2, 2012 at 07:57 PM. Reason: Last sentence corrected. Thanks.
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Old Sep 2, 2012 | 08:01 PM
  #63  
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Sounds like you need a hug.
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Old Sep 2, 2012 | 08:11 PM
  #64  
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Originally Posted by Jos_iQRacingEVO

Note: Currently I don't own an EVO, but I will own a 2012 or 2013 EVO X GSR this winter; so when I owned it, it will be newer and more worth it, than yours. Thanks. Also what really is not worth it, is that Fuji Heavy Industries that you also drive.
And there it is.

LOL.

Now I KNOW you are a troll. Seriously you drive a FWD Lancer and talk like you have experience with these cars.

Note to you: About to buy, planning to buy, hopes to buy........still doesn't mean you own one. You just wish you did.

Talking crap about my wife's car really gets you no cool points. Her car is reliable and won't take a crap ton of money to get 350 out of like your wrong wheel drive car. She gets compliments all the time.......I highly doubt you can say the same.

I could care less if you get a Evo X. If I wanted one I could've bought one I decided to stick with the last raw version of the Evo they made.

You don't impress me with your supposed knowledge of a car or motor that you probably have read stuff about but have no real direct experience with. One of the most respected engine builders has come on here and state evidence to the contrary and still you don't believe.

You wont win this battle so quit while your ahead.

Buy an Evo before you even have a right to have something intelligent to say in this conversation. Otherwise let the "grown folks" talk./rant

Sorry gentlemen. Continue on with the discussion.
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Old Sep 2, 2012 | 08:12 PM
  #65  
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From: Raleigh, Transplanted from Toronto, Canada
Originally Posted by hokutanm
Sounds like you need a hug.
Or a slap upside the head for being an idiot. lol
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Old Sep 3, 2012 | 06:40 AM
  #66  
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Thumbs up

Originally Posted by Kathern457
It has to do with crank journal overlap. The 2.4 cranks have none, resulting in higher stresses across the journal. Couple that to the "right" angle machining of the rod journals amplified by the distance from the harmonic damper and you have a broken #4 rod journal.
Anyone that can refuse that statement??? No, you just can't.

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Old Sep 3, 2012 | 08:38 AM
  #67  
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First off unlike a lot of people I don't take chances with any of the stock internals, 2.0 or 2.4. I have never owned a stroker under 600hp and never plan to. I will also never build any engine I plan to push with an oem crank period. Every built engine I had a part in building always runs an aftermarket crank and has the entire rotating assembly balanced up to 9,000 rpm. With that being said I have yet to personally see the failures this thread speaks of.
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Old Sep 3, 2012 | 08:55 AM
  #68  
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wish I would have paid the extra to get a billet crank. mine snapped on #4 also.
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Old Sep 3, 2012 | 09:50 AM
  #69  
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so he is assuming that the 2.4L's have such random failures like a FACT; so if we start from that premise
so just because a couple of fools go to a forum and state random facts,i am supposed to take it as Gospel.you are crazy and your posts are crazy like you said.

It has to do with crank journal overlap. The 2.4 cranks have none, resulting in higher stresses across the journal. Couple that to the "right" angle machining of the rod journals amplified by the distance from the harmonic damper and you have a broken #4 rod journal.
the crank overlap has been discussed in this thread already.you need to read the thread before you start re-posting what others already have.yes the 100mm crank is subject to break,that crank has nothing to do with the 4G64 block.the same crank is in thousands of 2.3L motors running around right now in 4G63's.

i know you can lead a horse to water and can't make him drink,but this **** is ridiculous.this thread stated 4G64 blocks fail and are junk and were not designed for boost.that statement is based in ignorance and has no validity.that is what myself and many other people in here have been trying to say,and then you get other people saying the crank is bad,but the crank has nothing to do with the block.

maybe the 100mm OEM crank is more prone to break than the 88mm OEM crank,i am not sure.AMS did stop offering their 2.3L with an OEM crank.when i look at the cranks,neither the 88mm nor the 100mm seem to have much overlap if any.they also undercut the journals by .020" on the 88mm and the 100mm.i am not a fan of undercut crank journals.i would rather start my build with a race crank that has nice strong crank jounals.

either way the 100mm crank is not the 4G64 it comes from the 4G64 and if you don't like the crank buy a race crank or a billet crank and be done with it.personally i wouldn't build a 2.0L without a race crank either.the OEM 88mm breaks and the OEM 100mm breaks,it just happens.

the point of all this is that the 4G64 block is every bit as good as the 4G63,if not better.
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Old Sep 3, 2012 | 10:56 AM
  #70  
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Originally Posted by Jos_iQRacingEVO
How many owners of these 2.4L beasts out there can you count? A thousand? I don't think so. Maybe 300hundreds, not even 500hundreds for sure. (I mean only counts those who have the 2.4L *high performance built only* - I am not talking stock* engine actually working, and turning on, and using in their engine bay to the date), not at the garage floor or blown in pieces).???



Note: Currently I don't own an EVO, but I will own a 2012 or 2013 EVO X GSR this winter; so when I owned it, it will be newer and more worth it, than yours. Thanks. Also what really is not worth it, is that Fuji Heavy Industries that you also drive.
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Old Sep 3, 2012 | 11:45 AM
  #71  
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^^^ Lolz.
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Old Sep 3, 2012 | 12:04 PM
  #72  
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Originally Posted by brakeboost980
Only place to down pack this motor build is er hand down if not, your looking for possible failures with these other builders..I myself ,love the old school 2.0 with 10.1 pistons and a good ported head.There's need for all that tq on the street to shred gears in the tranny and t. case.
Steves 2.4L i built seems to be doing good. This is the first engine ive ever assembled, and he has around 8000 miles on it or more and around 20+ 1/4 passes and recently went 11.01 @ 133.68 with crappy 205 wide tires on an fp black. (#6 fastest for 2012)

All that said, if i can build a 2.4 for the first time and it be very reliable and perform exceptionally well for both a DD and a drag machine, then anyone can do it. heres the documentation on the car im speaking of https://www.evolutionm.net/forums/al...o-9-build.html

Last edited by tscompusa; Jan 1, 2013 at 11:28 PM. Reason: to much crap said. re-edited it to be more professional
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Old Sep 3, 2012 | 12:12 PM
  #73  
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the above is merely just an example of proof it can be done right the first time as long as you research what you're doing thoroughly and do everything properly.. and most importantly know when you're reading bad info on the internet vs good info..

theres so much info out there in regards to building engines .. once you dig for it you will see as clear as day the info is out there.

i was pretty surprised actually how much good info is actually out in the open.
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Old Sep 3, 2012 | 07:07 PM
  #74  
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Originally Posted by Jos_iQRacingEVO
but I will own a 2012 or 2013 EVO X GSR this winter; so when I owned it, it will be newer and more worth it, than yours.

lol. more worth it? as in "better"?

have fun...
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Old Sep 4, 2012 | 02:55 AM
  #75  
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Originally Posted by Jos_iQRacingEVO
^ You read the O.P. title to this thread, don't you??? Cause he titled it as: ''Why do 2.4L's have such random failures?'' I did not see that he is asking It's true or not that 2.4L's are good or bad etc. but what I read in his title is that he is just asking why, so he is assuming that the 2.4L's have such random failures like a FACT; so if we start from that premise, then if you want to blame someone, start by the O.P. title but not me.

I respect your opinions and replies, so I hope you also respects mine. If I am such wrong, then anyway no one will follow my ''wrong info'', but I am not the only person that you will find wrong, in every thread and posts, are people who believe and defend an idea, and are other people who goes against same idea; that's precisely why this is a called a FORUM, or do you forget the meaning of that word? or do you forget that you are at a freedom of speech place?
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