boosted_b16

ok i have this fixation on building a bad *** all motor B series hatch, even though i doubt i'll ever have the money to do so im curious about some things... if you wanted a high displacement B series and started with an Ls block, how far could it go? what if it was a deck plate motor? would it be possible to get a B series to 2.2 liters and still rev it to 10,000 rpm? could you get 350+ whp from an all motor B series? i realize it would probably have to be a $20,000 motor to achieve that, but thats what i want, and before you flame and say this is HOMEMADETURBO.com or this thread belongs on H-T, it's just a pipe dream of mine and i'm just curious how bad as an all motor B series can be?

90dx

If you are obviously prepared to spend mega dollars why not go K series.You can use a K20 head and a K24 bottom end giving you more displacement to start with.Im sure with proper preperation of the K24 bottom end it will hold together at close to 10Krpm.Honda Tech would be a better place to research this as they have a dedicated all motor forum.I dought it is that hard 300whp with the K for the right amount of money.A 350whp B series is [if even acheivable] going to be a more money than its worth.

Guy-Fast

There has never been a 350 whp b and I dont there ver will be all motor wise. Why 10k? Its only a #. With stroke you will how high peak power is found. Most of the larger b's the 95 mm crank wise peak in the 8000's. Rpm's kill motors no matter what you do. Also a motor of that build has about 20 passes on it max before a complete new shortblock is needed to be built. If you really want to do an all motor build and want to run 11's in street form an 85x89 motor with a good head,cams,manifolds, and throttle body will get you in the 230-240 whp range and a very fun/reliable set up.

Tom-Guy

Some of the big name NA B-series are hitting at or near 300 whp. Most are running sub-10K rpms. Needing refreshed every 20 runs down the 1320, as chris said.

rhd's 2.1 ITR was 85X92, Carillo A-beams, RLZ spec + modified Wisecos, Darton sleeves, pimpy headwork, RLZ stage "3" cams, one of Eric Aguilar's old 92mm Eagle cranks. He got hooked up for an unmentionable *cough* five grand *cough* price, but you would expect to pay $9K for his longblock, not including the ITR core he started with.

The serious NA guys remove oil squirters and engine girdles, as they cost power. If the block flexes a little with the crank, at the expense of longevity, that's less force applied against the crank and therefore less friction produced = power!

You can do a CRV/VTEC and hit 230 whp pretty cheap and easy.

FURACERMAN

Power isn't worth ---- if your motor isn't reliable enough to get down the track. A LS block can take you far, but it'll take alot of $. And some of the better motors are putting out upwards of 300. There are even a few 300chp street cars running around.

Guy-Fast

Real 300 whp street car I doubt it and I doubt there is one that has raced yet,if so somebody would have a solid all motor 10 sec street car which hasnt happened yet nor I doubt it will ahppen anytime soon. 300 whp all motor is something very few have achieved in general. The magic reliable # seems to be for the b in the 220-230 whp range has the set ups are pretty simple but pricey. Truth if you have 10k you can go well into the 11's maybe 10's in a race chassis and I dont think anyone here has that kind of money unless you put yourself in some real debt.

Tom-Guy

RLZ was at 275+ last season in a heavy 2200 lb hatch, NDRA streetcar class. Car ran low 11's should have hit a high 10 but you know how cars are.

gsrcrxsi

ive been following the 300whp B series thread over on h-t for a while. Tbone and RLZ are in this together and they are documenting their entire ordeal. no one else has done that, for those who have made 300 on gas, they keep it tightly under wraps. they had a little setback due to a death in the family over at GE, but Tbone's setup is supposed to be:

obd2 LS block
vtec head (cant remember if its a gsr or b16 head) extensively worked by RLZ
95mm crank
86mm custom pistons boxed and strutted designed by RLZ
i believe hes undecided on rods and cams as of now

Tbone and brad dont expect to make 300 on their first try, but they are set on their goal of 300 on gas, and unlike anyone else, they are documenting the whole thing, to show what it takes and what will work.

the thread is long, but if youre interested here's the thread http://www.honda-tech.com/zerothread?id=1339161

Tom-Guy

Brad Z is whattayacall a hardcore ----------er.

Good people, too.

Guy-Fast

He knows what he's doin unlike 90 percent of the people out there. Good stuff