How to build a High Rev Engine?

[2.0civic]

high rpms dont mean shit....look at diesel trucks...like 3500 redline and haul ass and gobs of power

why do you want such a high redline?? so you can rev up at people?

[dakilla4ever]

high rpms dont mean shit....look at diesel trucks...like 3500 redline and haul ass and gobs of power

why do you want such a high redline?? so you can rev up at people?

No I want to build a motor that builds alot of N/A power but at the same time use the motor that came with my car. I know if i put the cams in that I want, the motor wont make power until later in the rpm range probably right when the stock redline is (stock is 6500). So i want to build my block to beable to handle all the way up to at least 8000 without going vtec. I just have to figure out the difference between h23's and h22's to find out why h22's can rev so high.

[2.0civic]

No I want to build a motor that builds alot of N/A power but at the same time use the motor that came with my car. I know if i put the cams in that I want, the motor wont make power until later in the rpm range probably right when the stock redline is (stock is 6500). So i want to build my block to beable to handle all the way up to at least 8000 without going vtec. I just have to figure out the difference between h23's and h22's to find out why h22's can rev so high.

who said h22's go to 8?? i still cant figure out what your obsession with that number is....NA should have a broad powerband not peak at 19k rpm....

[dorin48]

To give you an answer you want:

You will need to consider these things!
1. Oil pressure! A normal honda oil pump in new condition produces about 85psi thats good for roughly 8500-9000rpms. If you want to rev higher you need more pressure to not go boom.

2.Bearings Bearings Bearings. Every bearing in there needs to be switched to a race version.

3. Yes build the head. period.

4. Also need to take into consideration the other ambiant flowing components. i.e. manifols etc. (maybe itbs for full advantage)

5. Remeber the other parts that have to spin with the motor. Transmission may go boom from the revs. Also i would recommend not having one of those super light flywheels (6lbs for instance) they have been know to shatter at high rpm abuse.

6. Someone correct me if otherwise but im going to assume that the H23 has no sleeves like the H22. High revs are going to be incredibly dangerous if that is the case. Aluminum doesnt like heat so you could easily end up with a warped cylinder and that would suck.

kk have fun and build. Hope ur wallet is ready.