what would it take to build a B sieries that could rev that hard?
why would you want too…its very hard to be able to rev that high and have usable power…it would be pointless to rev out to twelve grand and not make any power past 9 grand…but any ways heres a picture of mine on the dyno
and this is with stock bottom end and CTR cams and valvetrain…
wrd…just to make power that high you’re going to sacrifice ANY power made below 10k, which means the car will SUCK to drive. it’s definitely doable with some fairly minor mods, but to make power there is very hard. cams will have to be custom ground, you’ll probably need ITB’s (or a ridiculously large intake manifold) and many other supporting mods. it’s just not worth it, for what? bragging rights? no thx. i’d rather build a reliable motor that makes power at 8k, than an all out narrow-powerband-race-setup that makes power at 12k and could grenade at any second.
While I wouldn’t poo poo the idea (I think it would be fun), you’d be hard pressed to make cams that would work up there. You’d also need a custom EMS… all your OTS tuning solutions using honda ECUs would max out at 9k. You might have better luck starting with a GSXR engine.
i think someones been playing too much grand torismo and using the spoon sports CTR or S2K…lol…
if your going to spend that much money just get VTEC killers…
Just the talk of revving to 12000 RPM is getting me excited.
actully i havent played grand torismo in ages, and i never used hondas, i alwas played with toyota and nissan lol
but anyway, the whole thing behind the idea was that i was watching a special on the F1 honda engines. some of them rev to 16k and 18k
i know that is STUPID amounts of money, so i figured 12 was a good number, i men realisticly speaking i know its impractical but i can get machine work done cheep and i figured it would be fun to do just to see what would happen and how it would drive,
at the very least i do want to rev 8.5k and make good power from 3000/3500 to about 8, if that sounds like a much more doable goal lol
but you cant say that you wouldnt like revving like a crotch roket if you could,
[QUOTE=DAtegPilot;1827626]actully i havent played grand torismo in ages, and i never used hondas, i alwas played with toyota and nissan lol
but anyway, the whole thing behind the idea was that i was watching a special on the F1 honda engines. some of them rev to 16k and 18k
i know that is STUPID amounts of money, so i figured 12 was a good number, i men realisticly speaking i know its impractical but i can get machine work done cheep and i figured it would be fun to do just to see what would happen and how it would drive,
at the very least i do want to rev 8.5k and make good power from 3000/3500 to about 8, if that sounds like a much more doable goal lol
but you cant say that you wouldnt like revving like a crotch roket if you could,[/QUOTE]
actually i can, because the only reason those motors rev so high is because they have no choice. to make any kind of power, they have to spin that high, to get enough air moving through the engine (remember, more air=more power). and to make the engine breath at those rpm’s your low end suffers greatly. you realize that F1 engines idle at anywhere from 8-12k rpm, right? anything lower than that and they’ll stall. even if you could keep it running, they still wouldn’t be able to move the car, there’s just no torque available that low in those engines.
a 3.5k-8k powerband is much much more realistic and feasible. if you want to rev like a crotch rocket, then buy one, it’ll be way cheaper in the long run!
i like my zx-10r. 12,700rpm redline, 174whp, 394lbs wet.
like i said the whole 12K was just a thought lol
and more thne likely ill be going with the 3.5 -8K idea,
and as far as crothch rockets go, i want to get a CBR600RR, im so small that even that little bike wont know im on it,
(im 5’6 and 118lbs) so that mroe then enough bike for my taste
but its still be a neat thing to dream about lol reving 11-12k in second gear, ppl would be like WTF!!!
doesnt some of the spoon vehicles rev up to 10K?..
i have no idea, but im also sure that spoon has it own EMS and im trying to stay away from having to do that if i only rever to 8 or 9, i figure is also a better idea cause i want to keep my stock gauges and 8 is where it stops,
also the few ppl i do let drive my car if it “redlines” a seven on the gauge i know they wont go past it trying to drive the poo out of it.
I know this might be later as hell but toyota had their 1.6 liter (4age) reving to 11k so i dont see why honda’s 1.6 motor can’t rev that high and still make power. Toyota did use expensive parts into the motor. Formula Atlantic FTW…
yeah i know about toyotas 1.6 i had one in a AE86 but i didnt build it, it was that way when i got it, it had the JDM silvertop in it, it was loads of fun . . but then i sold it to get a MR2, MR FTW!!!
Buy a bike, problem solved. =p
“you realize that F1 engines idle at anywhere from 8-12k rpm, right?”
I never knew that, I was in aw when I saw that statement.
Amazing!
BMW is the only company I can find to publish any numbers.
http://scarbsf1.com/BMW_P83/index.html
In 2003, their idle speed was 4000 rpms. I found some quotes from drivers that make me think that’s somewhat typical. It may have gone up some in the last 5 years, though. I found some evidence that some racing motorcycle engines idle even higher, with redlines as high as 26,000 rpms. I can’t imagine throwing a rod at those speeds with the engine a couple inches away from your nutsack.
Nice info… makes for a good read.
Idling at 4000rpms is understandable. I’ve had a bridge ported 12A ( the 1.1 liter rotary engine) that idled @ 2500-3000 rpms and revved out to 9000+ rpms.
8k-12k is simply mind blowing.
26,000 rpms??? - is now scouring the internet for a video of this.
[QUOTE=steronz;1828953]BMW is the only company I can find to publish any numbers.
http://scarbsf1.com/BMW_P83/index.html
In 2003, their idle speed was 4000 rpms. I found some quotes from drivers that make me think that’s somewhat typical. It may have gone up some in the last 5 years, though. I found some evidence that some racing motorcycle engines idle even higher, with redlines as high as 26,000 rpms. I can’t imagine throwing a rod at those speeds with the engine a couple inches away from your nutsack.[/QUOTE]
the engines are drastically different than what the P83 was. you have to remember 5 years is a lifetime in formula 1. and the P83 was designed in 2001.
The bikes that spun to 26k were small displacement 125 and 250cc 2-strokes. They still might, but I haven’t looked into them in a few years. However, with the way the engine is tilted, if they do happen to throw a rod (extremely extremely rare), they usually go out the front of the bike, away from the rider. the way the transmission is stacked “blocks” the rods from hitting the rider, again, MOST, of the time.