Formula 1 cars rev to like 15-18k but the engines don't last over 500 miles, I'm sure you can set a 4g63 to rev that high but no one knows how long it will last. 600cc can be revved to 15-18k throughout the motorcycle's life (well obviously not a permanent redlining) due to the stroke being so short and the piston/rod being so small. Evo fits nicely inbetween a 600cc motorcycle engine and a 3 liter v8/v10 formula 1 engine. If someone runs a test to see how far the engine would last in one run, it may even hit like 20krpm before the internals start flying out in pieces. I have heard of 11krpm drag evos but I haven't heard 11krpm time attack evos, I have not heard of anyone running 11krpm on stock internals. If getting rpm up high has serious marketability, or has some competition with fat rewards, I'm sure some shops would risk running their cars even higher.

 

I thought shep only ran 1st out to the moon.. 11.8 or something. The rest were shifted at mid 10's.

 

Fits in because of displacement, yeah - but in nothing else. Formula one engines are just way too radical in construction to be compared to production engines in marketed cars. I mean, I know you know that already, but its worth repeating.

But what would really be the point? That that one build was able to see 20K RPMS for a tenth of a second? OR a computer simulation could? To me its like the guys who claim huge horsepower on stock bottoms, only to turn the wick back down to something reasonable when driving it. I know the Evos transmissions are better then the DSMs, but I can't imagine being able to shift that high. I know my Eclipse couldn't do it. I'd just be afraid of one mishift grenading my car's driveline at that kind of spin.

 

I shifted AMX TA X at 9400 at the end of the year in Fontana (where it hit 188 on the straight). The X engine can rev higher due to the more rev friendly bore stroke ratio at least comparing TA 1 to TA X, the new car makes more power AND has a much larger, street car worthy, powerband, that engine is nuts.

Also remember it is a road race tuned motor meaning it will rev that high sustained.

 

This guy has great reading comprehension.

 

- Yes, but in the end the physical or chemical restriction trumps over engineering, such as around 9lbs ft of torque per 100cc at under 3000cc or below, or about 12lbs ft of torque per 100cc at up to 10,000cc for naturally aspirated cars. So once you start using fancy materials for evo and bike engine, improve some design for race gas only and efficiency, then all three engines will be restricted to displacement only. Using the same amount of money for developing a formula 1 engine, and all the best materials available, the engineers would not be able to make a 18krpm 8.4l dodge viper engine for road racing use, at least not with the current technology.

- Exactly the point I'm trying to make to ch53avitech and OP, an engine can reach tremendous rpm for a very short period of time and ruin the parts, or run only very low rpms and last almost forever. There is no fine line to pick 'the fastest revving evo regardless of reliability', or 'the fastest revving evo while being reliable', either way it is too vague and need more fixed variables.