how to install evo 9 head into evo 8 block
#1
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how to install evo 9 head into evo 8 block
I got an Evo 8 block I wanna install the Evo 9 head into it. What do I need to make it happen I got the Evo 9 head,and engine Harness. What else do I need
#4
I've done this, the mechanical part isn't difficult, but the wiring was a nightmare as I didn't have the engine loom and ended up making my own. You won't be able to use the 8 egr system...I junked mine, car runs fine without it.
#5
Hi, to the o.p., replied to your message privately, but basically all it says is to confirm that unless you want to drill out your 8 manifold to accept a map sensor, you'll need to fit the 9 manifold, which is what I did.
You should have a much easier time than I did with the wiring if you have the engine loom from the 9, it'll just connect straight up the the 4 sensors, and plug straight into the 9 ecu. I couldn't find a 9 engine loom for reasonable money in the u.k, so had no choice but to fabricate from scratch.
You'll also need the 9 top pulley cover....the 8 one won't fit over the Mivec pulley.
Cheers, Andy.
You should have a much easier time than I did with the wiring if you have the engine loom from the 9, it'll just connect straight up the the 4 sensors, and plug straight into the 9 ecu. I couldn't find a 9 engine loom for reasonable money in the u.k, so had no choice but to fabricate from scratch.
You'll also need the 9 top pulley cover....the 8 one won't fit over the Mivec pulley.
Cheers, Andy.
#7
Edited to add, just looked at the MAP site, it wouldn't be my solution for converting an 8 to Mivec, as it appears to need an awkward to access take-off point from the block. Could be wrong about that though. Also, no need to spend that much, I reckon in $ I spent less than 40 on the line and fittings....Mitsi have a non-return valve in the original line on the 9, mine does without, with no issues.
It's possible, I suppose that the MAP line could be made to work in the same way as mine does, providing it's long enough to reach the filter housing, but I expect you'd still have to source your own fittings, as theirs wouldn't be correct, at least for the bottom of the line.
Last edited by heaveho; Aug 6, 2011 at 11:18 AM.
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#8
soo i have a buddy that has a built evo 8 bottom end sitting around and i have a evo 9 it would be easy to switch them over?? and then does a evo 9 block work with the evo 8 head??
#9
If you want to put the 8 head on the 9 block, it's a straight swap, just blank off the Mivec oil supply on the back of the 9 block.
#11
Do you mean that the USDM 8s have a MAP sensor fitted to the inlet manifold as standard? My JDM didn't, hence the fitment of the 9 inlet manifold on my conversion.
#12
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Hi, can't remember exactly what caused this, but seem to recollect that the 8 EGR physically couldn't be refitted to the 9 head due to some detail differences in the fit between 8 and 9....car runs fine without it.
Do you mean that the USDM 8s have a MAP sensor fitted to the inlet manifold as standard? My JDM didn't, hence the fitment of the 9 inlet manifold on my conversion.
Do you mean that the USDM 8s have a MAP sensor fitted to the inlet manifold as standard? My JDM didn't, hence the fitment of the 9 inlet manifold on my conversion.
Hey, I'm in the process of collecting parts for the MIVEC swap. I wanted to ask what gasket and timing belt are you using? The VIII or the IX?
#13
I used the 9 head gasket, and all of the timing belt kits supplied in the U.K are the same from 4-9, if you use factory parts.
#15
Hi, I haven't personally checked the numbers against each other, but when I rang some of the suppliers that advertise on the U.K. forum, this is what I was told. Hope I'm not passing on bad info, but I think it's correct.