I know of 7 evo's that got a build 2.0L the best of the best in parts and there redline is 9600K. Most of them drag , One guy has a 40R brings his motor up to 9400k and shifts to the next gear well 35000k miles later and being a daily driver the car has not had one motor problem. A motor well done and well taken care of will last you a long time.

 

you wouldn't need arp headstuds, a good tune or a balanced crank either.

8500 RPM - forged rods, arp rod bolts, stiffer valvesprings, stronger retainers. that's all you NEED.

 

Wow! 9,400,000 redline! And it has 35,000,000 miles on it!

 

yea...I wonder how long it take the motor to reach that rpm?

 

Be careful not to end up like this guy from revving over stock's redline (7000 rpm).


https://www.evolutionm.net/forums/sh...d.php?t=189580

 

With the stock turbo I shift at 7k anything past that just loses power. Once I build it out and tune it with a 3076 I will run 8500ish or until the turbo stops making power but I am thinking it should pull to 8000ish.

 

lol, TedB knows all even though he has never been in a evo with a build motor that runs 9000+ rpm. Got to love the internet

 

Martinez gives out so much whack information, the 94 million rev thing doesnt shock me.

Scorke

 

Ted B does not and never claimed to 'know all', but consider the fact that Ted B, offers modern standards derived from the experience of the most reputable engineering and design houses, knows how to use a calculator, and knows how to spell correctly - all of which are far more than anything you've offered here to date. But of course, this should all be sharply questioned because you've claimed to have ridden in an EVO whereby the driver shifted it at 9000+ rpm, and therefore everyone should do it.

The information I provided is intended to serve as guidance for those who are intelligent enough to consider it, research and verify it on their own, and ultimately use it to their benefit. How you use or abuse your car makes no difference to anyone else, but neither does it warrant that your habits should be applied to anyone else.

 

Can you rev the 4G to 8k+ with the proper parts...yes
Should you do it on a roadcourse...NO!

Repeated shifting at that RPM for 30-40 mins WILL DESTROY YOUR MOTOR...PERIOD!

I would be willing to guess that you may last about 3-4 track events then it will die a horrible death. High revs for 11-12 seconds is completely different then 30-40 mins on long, hot track sessions.

If you plan to rebuild/check the engine after every track day then I say go for it.

 

Mean piston speed only gives rough indication of component loads. Rough because engine speed, component masses, geometry, are not known. What helps is that some factors offset each other.

Load is the first and real limit for most anyone.

 

This whole thread is getting silly. Clearly we've got a bunch of people that think they can rev their stock internals well beyond factory imposed limits. I'm just gonna grab the popcorn and will sit back to wait for the inevitable "Look what happened to my engine" thread(s) from said people (for some of whom it will be the second time around).

Come to think of it, it really doesn't matter all that much how you want to do it. Either build your engine right the first time, or rev the stock internals as high as you want ... and then rebuild after the big kaboom. Either way, you're going to "build up" your block.

l8r)