C/r?
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C/r?
I have a d16y7 block. Im going to be purchasing a d16y8 head with some work done to it. im going turbo and the situation is Im not sure whether to buy d16y8 or Y7 pistons. Im going 9:1. Im just curious because I was looking at this site and the numbers are different for each piston. Kinda thinking that Im going to have some in between ratio after the y7 block and y8 head is mated. I know it depends on the head work, so Im hoping this is where jeff will chime in. As far as the piston size, im not sure if im going over sized or not. Any technical info that can help arrive at an answer would be greatly appreciated.
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JDM Hater #001 PITBULL, "the most diabolical JDM/all around HATER"
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The pistons have the same bore I believe. Im at work so I can't double check that. The only thing that might be different is the dome size on the pistons, stock. I would just go with Y8 pistons as they are interchangable. The valve reliefs might be different on the Y8 to allow for higher lift of the valves, again, Im not remembering the lift/duration for stock Y7/Y8 cam profiles. IIRC you're goin forged internals, so just go with the Y8 pistons and everything should be fine. If you want check out google for the piston profiles, check my earlier posts for D series build ups and tech posts, I've posted a bunch of piston information.
When you're building this motor, remember to use a VTEC oil pump (y
so it'll help the engine rev higher. Im not positive on the crank in the y7 either, I dont know how high it likes to rev, so be careful with that one, do some research. If anything you can get the rotating assembly balanced and everything will be fine.
Hope that helps man.
When you're building this motor, remember to use a VTEC oil pump (y
so it'll help the engine rev higher. Im not positive on the crank in the y7 either, I dont know how high it likes to rev, so be careful with that one, do some research. If anything you can get the rotating assembly balanced and everything will be fine. Hope that helps man.
Thread Starter
Equal Opportunity Hater
Joined: Apr 2003
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well the head that im going to use is yours. that was my main issue as to whether the y8/y7 pistons are interchangeable. I will use the vtec oil pump, thanks for the heads up on that.
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JDM Hater #001 PITBULL, "the most diabolical JDM/all around HATER"
It's not that the JDM itself is bad. When everything is JDM, When you think you're JDM, When your US car is JDM cause of your taillights. When YOU are JDM. YOU are GAY!
JDM Hater #001 PITBULL, "the most diabolical JDM/all around HATER"
It's not that the JDM itself is bad. When everything is JDM, When you think you're JDM, When your US car is JDM cause of your taillights. When YOU are JDM. YOU are GAY!
