italianevo88

iTrader: (3)

i had 2 quick questions, what does a stock evo safely rev out to? and im running 272s and im not sure what their capable of revving to.

xRoguex

iTrader: (15)

edit - just saw the little heading with kelfords.


If your on stock springs - i suggest you keep a stock rev limit.

JakeTheVIII

iTrader: (35)

I'd just rev it to 7, maybe 7200ish

WADADLIG_OZ

iTrader: (9)

Did you upgrade the valve springs etc? Or are you on the stock springs?

DBallz

iTrader: (7)

I think on stock valvetrain u can rev to about 7200-7500ish....I'm currently reving to 8k on my valve springs but I usually shift around 7500 when I run the quarter

Lancerguy'03

iTrader: (8)

7800 is fine on stock springs (i shift around 7500 or so)....what the beehive springs or duel springs you can rev to 8200 or so.

from what i understand its not really the head but the forces on the rods that limit the rev.

SHIFTT IX MR

Then why do I see people who post that in order to rev above a certain engine speed, the springs and such should be upgraded? So the main limiting factor to an EVO 8-9's rpms is because the bottom end can't hold?

xRoguex

iTrader: (15)

Its both.

Cams without the proper springs.

And a stock rotating assembly.

italianevo88

iTrader: (3)

alright thanks for the tips

Lancerguy'03

iTrader: (8)

yeah...i mean you need to do springs and retainers but anything past like 8300 you need to have stronger rods....its a lot of g-forces on rotating parts are high revs

italianevo88

iTrader: (3)

thats the cool thing about an already modded car, you have no idea who did what to it. Ill put springs and retainers on this winter if not already on there