I just would like to pass on / inform the community of the something i measured on a evo 9 intake manifold inlet id.

Last night i helped a friend install a 65mm throttle body on a evo 9.

Before boring out the inlet to the manifold, i measured the oem i.d. & discovered it to be 61.1mm for the evo 9 vs 60.0 mm on evo 8's?

THIS MEASUREMENT WAS ONLY OBSERVED ON 1 EVO 9. I cant confirm that all evo 9's are like this, or if this is from a certain vin forward, etc...

Just another subtle difference that may help us understand / bridge the gap in power differences between an evo 8 & 9.

 

oooh maybe this is another reason there's more hp?

 

subscribe

 

Manufacturing tolerance? Perhaps nominal is 60.5mm and the tolerance is +/- 0.5mm.

 

Intresting fact

 

hmmmmmmmmmmmm

 

Sorry for the OT, but WTF is this? I've seen this 5 times already today. Is there something wrong with just clicking "Subscribe" at the top of every thread in "Thread Tools?" Just wondering...

 

he will get a email whenever someone replys and he will find out if other people see this too.

 

maybe, but i have measured about a dozen evo 8 inlet manifolds & they have been between 60.0 - 60.1mm.....

 

I think you missed my point One can simply click "subsrcibe" in "Thread Tools" rather than polute the thread with worthless replies. And speaking of polluting threads, sorry for the OT post WOT.

 

some I guess cant evolve without making useless posts to add up on there count.........Kinda like I just wasted more space by saying that, ooooooooooops!