Melb30x, the links before didn't work for me. They just went to some japanese cars website, no specs or anything though. EDIT: Found some specs now! Seems that Eunos 800 peak power is 6500 just like the MX6 but torque is 4800 instead of 5500 as previously said.melb30x wrote:hm..some guy on astinagt posted some data on it..don't know if it was correct but i'm saying what i hear and read obviously and not from personal experiece.
but, i will try to find that data and show you then you can interpret.
either way, curved neck would still be easier to install wouldn't it?
Anyways - the point I want to make is that I agree there is a difference between a curved neck engine and a straight neck BUT what you're doing is buying a straight neck motor, I assume, and putting a curved neck manifold on it. Technically it's not the same thing. It's going to be a full KL31 straight neck engine apart from the IM. Some curved neck engines have KL01 cams (perhaps other minor differences) and make torque earlier etc. Not sure of the exact details but it's technically not the same thing.
It will be a little easier to fit as you won't have to go and buy a slim battery, though that's not a hard thing to do. You can use the stock intake easier too, so that's also a positive. Apart from that it's not too hard to fit a straight neck engine in an Aussie car.
Btw, as Mnemonic said, the only way to test the difference of the manifolds is to dyno the exact same engine with the straight neck, then immediately swap the IM over to curved and dyno again in the same day. This is very hard as stripping the IM and putting another on is not that easy.
And even then if a difference was proved, it would only be minimal, I'm sure of this. But definitely go with curved neck if it's cheap enough. It will be easier to fit and you won't have to buy a slim batter or custom intake. Then you can sell your straight neck. So you can def save more money by using the curved, providing it's cheap enough and not something silly like 400 bucks.
