I've been reading a lot about B-series engines and Integras in general since I bought mine back in October. From what I've read, it seems that the B18B1 is a very durable, stout little engine, but I still have some concerns. When I drive my car spiritedly, it seems the engine likes to get close to redline without actually ever sounding strained or over-revved, so when I look down and see the tach at 6.5k I can't believe I'm at redline already! My question is, is the 6.8k RPM "redline" more of a powerband maximum, or an actual "don't rev this high or **** will break!" type deal? I've only owned Chevy's since now (Camaro and Cavalier), so I've never had this issue. I have 154k miles, well-maintained, no smoking no leaking, nothing. But whenever I get on it, I feel guilty for my Acura lol. Someone ease my mind :driving: thanks
00GSIntegra
Yeah I've seen the powerband for one, but it just sneaks up so quickly that I'm thinking the tachometer reading has a lot of cushion built into it, maybe to avoid engine failures in order to keep a good reputation or something. I don't rev it into redline regardless because it does lose power, but who knows what the Japanese thought here lol
i rev my b20 to 7200 pretty much every day. it definitely doesnt have as much pull at the very top as id like, but it doesnt drop off drastically or anything, mines mostly for autox so i dont have to bust into 3rd so early, and its a number i felt comfortable with.
From what I remember the valves start to float not much above 7k on the non vtec heads, the rod bolts are weak, and stock the power falls off at 6500ish. There's no point in touching the redline on a stock motor.
This has been asked many many times, here's a couple links in specific to take a look at.
http://www.team-integra.net/forum/14-performance/43656-how-high-can-one-really-rev-b18b-safely.html
http://www.team-integra.net/forum/14-performance/69746-so-what-does-low-rod-ratio-actually-load.html
This has been asked many many times, here's a couple links in specific to take a look at.
http://www.team-integra.net/forum/14-performance/43656-how-high-can-one-really-rev-b18b-safely.html
http://www.team-integra.net/forum/14-performance/69746-so-what-does-low-rod-ratio-actually-load.html
Enjoy it till it goes one day...by then u shoulda saved enough for Jen b18c w/LSD straight outa the crate. Go to work. Rev it up all the way at 10,000rpm. Report back. Then well make sure ya salute u gladiator. 
First, get a reason to raise the redline. Then, make it reliable at the higher revs. IMO, for the price you would spend to do this... I would go LSV. You will make a lot more power, spend around the same. I'm not going to justify this here. Do some research on built ls motors. It seems like a lot of money spent to get very little back.
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