does anyone know of any companies that sell de stroking kits to for the b16 to allow for higher rpms, and coupled with correct head, CR, cams, etc should make more reliable race power. what other options are there for race engines, preferable the b16(since i got one in my garage lol). what do the full race civics use? anyone know of any sites i can find such info about this topic? thanks

 

The B16 can already rev high as hell, why would you need to go over 11,000 rpm anyway? For that, your going to need to spend a TON of money to get the head/cams/IM to breathe in a motorcyle like rpm range.

Its almost pointless to try and do.

 

this isn't the typical street/drag/autocross engine im talking about here. im talking about making an engine that can compete with MUCH higher hp engines, to achieve this on a smaller track(my home track, free track time for me ) a high rpm motorcycle type engined car would be ideal. this car would not be streeted(hmm) and would be pretty much just a track *****, luckly it can live at the track so no trailering is necessary. let me know what other options are out there for extreme engine setups, not just destroking. thanks

EDIT: nm, misread your sig, thought you said achievments instead of goals. lol

 

hell yea dude, just go get a CBR900 motor and put the D15Y8 head on it...i mean the stock redline on the CBR is like 14K then the addition of the VTEC head lets see...carry the 1 subtract the 4...you should be able to rev to about 22.4K with no problems at all, and slapped into a CRX depending on a few minor things you should be hitting low 8s in the quarter!

 

the b16 has a R/S ratio of 1.75 as it sits...just build the top end to handle 11-12k rpms, and make sure you have some strong rods and rod bolts and rev away...don't "de-stroke" your b16.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by is300racer &raquo;</TD></TR><TR><TD CLASS="quote">hell yea dude, just go get a CBR900 motor and put the D15Y8 head on it...i mean the stock redline on the CBR is like 14K then the addition of the VTEC head lets see...carry the 1 subtract the 4...you should be able to rev to about 22.4K with no problems at all, and slapped into a CRX depending on a few minor things you should be hitting low 8s in the quarter!</TD></TR></TABLE>

funny ****

 

thanks for that helpful information. i will seriously consider it, should i slap a turbo 350 tranny on it to and make it rwd? **** maybe i should put then engine in the back and run rear engine front wheel drive. ***.

anyways i guess that i will just have to do as comp fed said, the project is being started, i will post up some other stuff when i start making progress.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by is300racer &raquo;</TD></TR><TR><TD CLASS="quote">hell yea dude, just go get a CBR900 motor and put the D15Y8 head on it...i mean the stock redline on the CBR is like 14K then the addition of the VTEC head lets see...carry the 1 subtract the 4...you should be able to rev to about 22.4K with no problems at all, and slapped into a CRX depending on a few minor things you should be hitting low 8s in the quarter!</TD></TR></TABLE>

 

finally someone after my own heart!

Moldex will make b series destroker cranks for you. Its spendy (1250-1750$), but its a bullet proof crank when you are done.

Its pretty easy these days to get rods made.

The limits of RPM on the b-series is generally the valvetrain rather then lowerend. But i do like the idea of reducing reciprocating inertia, and increaseing R/S.

The lower end can be made. Its not that tricky, only expensive for the crank. The valve train to be able to live at those RPMs will be the challenge. You may want to look into making all of your own valve train components, or starting with something like a 4AGE with a bucket type valvetrain


Modified by liveforphysics at 6:36 AM 4/21/2004

 

your gona have to get a custom tranny to effectively you that power reving that high, even the shortest tranny you could peace together, i don't think willl be good enough and accelerate you fast enough

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tek_civic &raquo;</TD></TR><TR><TD CLASS="quote">does anyone know of any companies that sell de stroking kits to for the b16 to allow for higher rpms, and coupled with correct head, CR, cams, etc should make more reliable race power. what other options are there for race engines, preferable the b16(since i got one in my garage lol). what do the full race civics use? anyone know of any sites i can find such info about this topic? thanks</TD></TR></TABLE>

I always wondered why noone ever did this to Hondas. I mean they alreay have high revving capabilities. My father used to race back in the day, a 67 Camaro with a destroked 302 so I think it was like a 278 or something. I dont know all the specs on the motor, but I do rememeber him telling me they were using bigblock rocker arms on the Smallblock head, boxed out valve covers to make everything fit. He used to launch the car around 8k and through the traps between 9800 to 10000k. Remember this was a V8 guys. Sorry to get off topic, just thoguht it would be interesting to share.

So Im gonna say, anything is possible. Tranmission and final drive will be the only problem..

 

With B series that will be strictly a track *****. I would ditch the Vtec head and put a B18b head on it and work it over like hell since you will have to anyway. Cam grinds will be cheaper and there will be less reciprocating/rotating mass of the extra Vtec lifters/lobes. Vtec is mostly for streetability or to give the bottom end better power for road course. If you are going Drag then you will never worry about the lower half of the RPM range. The non-Vtec Head is lighter and cheaper too.

Personally if I were to try to destroke a Honda engine I would go for the H. If you really went all out a crank is going to cost about the same for B series or H series. If you destroke the H then you can still sleeve at 90mm and retain a decent amount of displacement and keep the Bore/stroke pretty oversquare. And you can pick up a h23 bare block pretty cheap. Then you can have the oil squrters to cool 13:1 compression forged internals.

The H's head also has more room to put some huge springs into. But you still have the issue of custom cams/springs, custom final drive, custom crank, custom rods, and all of the forged internals. Speculating is fun but when it comes to actually shelling out then the big picture gets a little heavy.

Oh and if you are thinking about high revving allmotor apps then I would definately look into K series. Damn can those heads breathe.

People joke about motorcycle engines and this might be off topic a little but it is still all motor...I just got my subscription to Sport Rider mag. The new Kawasaki ZX-10R has 998cc's displacement, B/S of 76mmX55mm, 4 valves/cylinder, 43mm throttle bodies, and puts down 164Hp @ 12,000rpm and 80ft/lbs Tq @ 9,750rpm off of the showroom floor. If anybody cares that is more power than the Suzuki Hayabusa that has an extra 300cc's displacement. DAMN! If I had the money I would grab two of these engines and stick them together with a little welding and a custom crank. That'd be a 2 liter with 328 hp and 160ft/lb tq with that V8 rumble to it too.

Just throwing out ideas. Where there is a lot of money there is a lot of power...Good luck.

the Pirate



Modified by PirateMcFred at 9:56 AM 4/21/2004

 

hey guys, thanks for the serious replies. i was thinking exactly on the lines of the muscle car engine de stroking when i thought about applying it to hondas, particularly the b series because of their huge aftermarket support. do you have any more info on that de stroker crank? like a website or something? when they do come out im gonna try to be on top of their list. i too have thought about the motorcycle engine(well not welding two together) but the weak point is the trannies, they are designed to power something that is like 300-400 lbs, when you put one of those into a car the tranny burns up because its under too much load. maybe with some sort of forged gears and other components it could work.

oh and yes this would be a track *****. i get free laps at the track that i work at so why not make a track *****? anyways tnx for the info and keep it comming!

edit:
i also have access to a full machine shop and a full metal fabrication shop. what points specifically do you think i should concentrate on? retainers? springs? also about the b18 head idea, i see what your thinking, as once i get going i rarely fall out of vtec aas it is and now im only shifting at 7.5k so i see how vtec somewhat becomes unnecessary.

about the 4age
i wish. can anyone say formula atlantic engine? lol