question= 20v vvt top seal removal rev past 10k rpm????

[bje10s]

i cant remember where ive heard this before but is there any truth in it? ive done a search and cant find any info on this. im just curious if it can be done and if anyone has done it. i thought revving past 10000rpm was a myth. it would take quite abit of hard earned peanuts to create such a engine.

[The Witzl]

you are correct to be skeptical - it's complete BS.

[mikie_121]

I've questioned why it can't be done.

Stock bike engines get well past 10k rpm, I'm pretty sure Formula 1's get to at least 10k. Why not make normal cars do that? Sure you'd need much lighter internals and a new (fast) ECU, but why not?

I'm preparing myself to be shot down in flames...

[rms]

Not myth at all, US F/Atlantic 4age 16v race engine gives max power around 10,600 rpm.

Why not make normal cars do that ?

Are you prepared to pay $60,000 AUD for a 4age 16v n/a and then rebuild it every 2000klm, if it lasts that long. No grunt below 7000, can't let idle below 2500rpm.

[Spindevil]

i think formula 1's are pushing past the 20k mark.

but there is a reason that the engines only last a couple of races when pushing that kinda rpm.

and the noise is phenominal. orgasmic yes but for a daily?

[The Scarecrow]

I've questioned why it can't be done.

Stock bike engines get well past 10k rpm, I'm pretty sure Formula 1's get to at least 10k. Why not make normal cars do that? Sure you'd need much lighter internals and a new (fast) ECU, but why not?

I'm preparing myself to be shot down in flames...

the old 3lt v10's went to 23,000rpm, while the new 2.4lt v8's can do over 19,000rpm if they could (fia put 18,000rpm limit)
but there stroke is very small

[Ben Wilson]

I'm pretty sure the Cosworth V8s were reaching 20k before they put a rev limit on them.

There is zero point trying to build a street motor which will rev over 10k, it's just a bad idea for many different reasons...

[2jzhilux]

didnt the 2zz's rev to about 9k right before they exploded

[Vios-GT_07]

lemme guess..

Initial D and the silvertop engine from group A racing, with the VVT mechanism disconnected and the main character not discovering that the engine can rev past 7000 rpms until someone else told him and his dad had to specify the limit?

[4agte]

the old 3lt v10's went to 23,000rpm, while the new 2.4lt v8's can do over 19,000rpm if they could (fia put 18,000rpm limit)
but there stroke is very small

this is from the f1 website

Engines
Engines homologated and used during the last two races of 2006 must now be used during the 2007, 2008, 2009 and 2010 seasons. Although this move, designed to cut development costs, has been widely described as an 'engine freeze', some limited development work will be allowed. This will, however, be strictly controlled by the FIA. Engines are rev-limited to 19,000rpm.

and the v8 cosworths b4 this rule were touching 21k rpm i dont think the old v10's were reving much if anything past 20k

[Mr Revhead]

yeah as above.

formula atlantic engines were limited to 9500 rpm some time ago
they were revved to 12500 previously

you could if you wanted make a 20v rev above 10k
its take some work though, custom rods, crank, valve buckets etc.
i dont get what you mean by top seal removal though?

[tomvale13]

Hyabusa motor in a cappucino?

Theres a daily that revs over 10. For short people.

(assumes hyabusa motor revs over 10k)

[The Witzl]

Mr Revhead - he obviously wants to spend $ZERO and get ++++hektikWATT power gains.

[Vios-GT_07]

you wouldn't be referring to the speed sensor issue, which when disconnected, doesn't allow you to rev past 7000 rpms, and when plugged in the ECU knows you're moving and lets you rev higher up, like 8100 rpms or something?

[adamaw11]

i dont get what you mean by top seal removal though?

by "top seal removal" he means he's been watching too many cartoons with ae86s drifting.

how to make 20v rev past 10k:
1. disable rev limiter
2. fit tacho that shows 10000rpm
3. go drifting around mountains of japan
(only joking)