510 cui 9500rpm

[Kadett4wd]

https://www.youtube.com/watch?feature=p ... aBjNz0LKAY

[Performance_seeker]

Ojojoj, misstänker att det fjädertrycket är inte att leka med...

[caterpillar]

Å FY ********!!!!!!

[EKR]

Nhra been running 500ci at 10500 for decades

Caterpillar, i once was a caterpillar fanatic with 3406e, until i met a real revving diesel 6'er; Cummins ISB and isx15.
http://youtu.be/i50H_XRsiTs @5500rpm

[Kadett4wd]

Yes i know,, top fuel are revving north of 10krpm too.
But i found it worth sharing anyway

[Thunderbo1t]

Det ser ut som fördelaren sig vrider på slutet av filmen, kanske inte spelar så stor roll om det är crank trigger?
Känns inte stabilt, som en viss doktor skulle sagt

[Performance_seeker]

Nhra been running 500ci at 10500 for decades...

Yes, but they also tear down the engine every 4 seconds...

[Erland Cox]

No they don't. If they don't break P/S runs several races but the valve springs and valve gear are checked every round.
And that engine would not even qualify.

Erland

[EKR]

Yes still amazed how primitive the pushrod engine is but still doesnt grenade its guts at these speeds. Although some last a mile literally Okay now for the debate;

GM LS2 6.0 V8 16v

Vs

BMW S65 4.0 V8 32v

What are some of your guy's thoughts, considering both are aluminum block despite 2000 rpm rev difference, ohc's, etc..

Go!

[davexe]

No they don't. If they don't break P/S runs several races but the valve spimgs and valve gear are checked every round.
And that engine would not even qualify.

Erland

Erland's right, this year we ran all the 6 major FIA races without tearing down the engine a single time. the pro stock engines hold up pretty well, we rented out our spare engine for the race in tierp and it hit the limiter quite a bit, didn't even brake a spring (to be fair it is an older engine that doesn't rev as high as the main engine)

[EKR]

Oh ok i know some of the drag week cars like 632 cubic inch chev big blok turbos etc like jeff lutz larry larson rekord holder rev 8000 or so rpm. Only thing replaced on both cars during drag week was heads at believe and they did 3000km +

[Erland Cox]

No they don't. If they don't break P/S runs several races but the valve spimgs and valve gear are checked every round.
And that engine would not even qualify.

Erland

Erland's right, this year we ran all the 6 major FIA races without tearing down the engine a single time. the pro stock engines hold up pretty well, we rented out our spare engine for the race in tierp and it hit the limiter quite a bit, didn't even brake a spring (to be fair it is an older engine that doesn't rev as high as the main engine)

I believe those engines were assembled by one of the best.

Erland

[Kadett4wd]

Yes still amazed how primitive the pushrod engine is but still doesnt grenade its guts at these speeds. Although some last a mile literally Okay now for the debate;

GM LS2 6.0 V8 16v

Vs

BMW S65 4.0 V8 32v

What are some of your guy's thoughts, considering both are aluminum block despite 2000 rpm rev difference, ohc's, etc..

Go!

Every day in the week i would choose a modern design with multivalve tech.
But i find it amazing with the output of those pushrodengines, but wold i choose one,, nope!
With one mark thou:
If i would build an hardcore raceengine and competed in serious racing, YES i would build the setup that would keep all things intact through whole raceseason.