Anyone here build and evo8 block and install it in evo9? What needs to be done to get oil to the mivec? Called Buschur and AMS but they havent done this yet. jacksonauto says they have customers that have done this but couldn't say what was done exactly since they themselves have not done it.

Also does anyone know how thick the evo9 gasket is? The evo8 gasket is very thin. Looks like a compressed thickness of just .026.

 

Ricky at TopLevel in NY has an evo 8 motor in his evo 9. Full evo 8 motor/ecu/harness with aftermarket pistons and rods. sounds like you just want to use the block and I think its the same but i'd have to with him

 

Found the answers to my own questions. The evo8 and evo9 block are the same. The headgaskets are interchangable. The evo8 gasket is .026 and the the evo9 is .040. The mivec gets its oil from the oil pressue sender fitting on the back of the block. There is an extra fitting there under the oil pressure sender. That fitting just needs to be swapped when installing the shortblock.

 

why are you putting a VIII motor in a IX?

 

So can we put a 9 mivec head on an 8 then?

 

Thanks for the info it's always good to know this stuff

 

i dont see why you cant put the 9 head on an 8


i read a few articles somewhere that all the super high hp cars in europe, japan etc.. have been swapping back to the evo 8 head cause they said the 9 head was hurting more than helping in big turbo applications..

 

^I read the same thing

 

^^^^Interesting^^^^ I wonder why?

 

the mivec is suppose to aid smaller quick spooling turbo's... but with a larger much slower spooling turbo it has no effect and is just an added complication.

i think once companies like jun, revolver and the other top end guys come up with better cams that are equal to the cams you can find for an evo 8 there will be better results..

 

Look at Honda/Toyota/ect. ect....anytime you come in contact with a high hp vehicle the variable valve timing becomes a setback. I don't know the mechanics behind it so unfortunately I can't indulge beyond that. VVT is very good to make more power from less to a certain point. From that point forward you ultimately need a non-VVT head to make greater power numbers. As all Honda owners hate to remember the fastest ones to date are non-Vtec

 

thats true... all my honda engine swap friends that wanted to go turbo went with a regular LS b16 instead of opting for the vtec...

good point

 

yeah they do the LS block with B16 head. the head is a vtec head. maybe full racing applications work better without vtec being used. but the vtec heads flow way better than non vtec. i am almost positive u can use a vtec head without utilizing vtec itself

 

toda vtec killer camshafts eliminate it
from what i remember its just another lobe on the cam that they dont add on or something like that

 

thats true but all of honda motors and toyota's celica GT and GTS are aluminum. they are not designed to boosted and the high compression of these motors cant handle 12 pound daily with out something give out. Also LS motor are cheaper then a vtec motor by $2000 and easier to tune because u dont have to make multi maps when the cam timing or lifts changes. the vtec heads do flow better but the bottoms are not strong enough.

it cost alot of money to keep the cam timing and lift, lots R&D and tuning. most newer cars out there like the bugatti has made lots of power with the cam timing and lift. pretty much every car company has started using the same technolgy honda and toyota been using it is just what they call it that throws ppl off.