Revving to 7200

[richy]

lol we shall see!

[2 live]

lol.theres a few im gunna have to keep me eye on this year i think..............

looks like the cheque book mite be comin out again later this year hehe

[2 live]

btw...............mine loves the redline at 7200 ish...quite hard to see exactly what revs its hittin the limiter at lol

[J o n]

sounds like you guys need cutom Willy dials that are exactly the same but for the redline blocks starting at 7'500 and ending at 8k just for a bit of scope... when I get cams I'll prolly be going for 7500rpm to be honest.

[stan]

@ 7200 rpm = 22,6 m/s
This would not be a problem at all....

Personally i feel above 7500 for the F7R is a bit on the high side... but...
My opinion: 7500 rpm is the limit for the F7R in std. trim.

I think you would need to balance it very precisely when reving higher and having all the other advantages of doing the lightening and balancing at the same time.
F7R/F7P is a strong construction but internal parts are heavy compared to more modern engines. (especially japanese)

Michael

the crank has been known to fail on a few occasions

lightening the crank poses no advantage UNLESS you have lighter pistons/con-rods

[2 live]

but any place worth its salts would only lighten/balance the crank as part of the full package of crank rods flywheel....then its up to u or ur engine guru to decide on pistons

[stan]

maybe, but people tend to lighten the crank WITHOUT fitting lighter pistons. you will put the system out of balance if you lighten the crank without fitting lighter pistons/rods

balancing on an engine with more than 2 cylinders is pointless anyway

[2 live]

lol^^^^^^ surely the more moving parts and forces exerted in diff areas and directions balancing is even more needed.....

[stan]

that seems to be the VERY popular misunderstanding....the maths prove otherwise

[J o n]

that seems to be the VERY popular misunderstanding....the maths prove otherwise

fair enough, i see your point, but maths doesn't always win when it comes to cars, I think on road results are more accurate. i'd 1/4 mile it before and after everything has been lightened and balanced then see.