i want to see what i need for a 250whp build i have the block some ctr pistons stock ls rods and want to know what else i need im going all arp and clevite for barrings.

 

GL

 

GL BUDDY!! your gonna have to go ls v.
you need 4 grand, race gas, 13.1+compression, 84mm, type r or b16 head, very good cnc port job, 3" exhaust, VERY BIG CAMS like skunk2 tuners or buddy club, good long tube headers, 70mm throttle body, ported manifold, 440-550cc injectors, and a really good dyno tune.

 

Not sure why the postedabove suggested Skunk2 Tuner Cams or to bore a LS Block to 84MM. If you going to go 84MM on a LS Block better sleeve it.

To go with what has already been suggested, better get a 95MM Crankshaft.

I don't think you know what your getting yourself into, nor do I think you have the budget for it. Just build it the way you want to and remember, a number is just a number, altough we all strive for the big ones.

 

just put a turbo on it. save tons of money, and actually hit your goal.

 

With goals like that just boost it and make more, If you said 200whp I'd say go for it and it's possible because it is.

 

might as well start with a b20 motor

resleeving
stroker kit
headwork
valvetrain
cams
intake manifold
header
good exhaust
probably no idle whatsoever
ETC.
pretty much every trick available

its pretty hard to achieve 250 on a B20 vtec and having an LS its like 10 steps back.

 

you WILL NOT make 250 whp on an ls motor. and if you do nobody will really even care.

this is a video of a 200whp ls just to give you an idea http://www.youtube.com/watch?v=lViwznyTWq0

 

I love that video lol

 

what about 200whp on a lsvtec is that possible with all motor build

 

you should read this section.

theres a dyno thread and many LS vtec build threads to answer your question.

 

LOL
first sell that block, pistons, and bearings.
second....buy sleeved block bored to at least 84mm and watch money fly out of your hand to get the parts to support 250whp

 

i think im going to just turbo it and not go all motor to much money for me even if it will be more reliable in the long run but its a honda so your never going to be to reliable.

 

displacement is the key brother i would invest on a stroker kit and you definetly need to sleve your block go 85 mil get your self some 13: cr pistons maybe some toda c mams and you need to run race fuel on their or get a aem meth kit but you can do it just need cash lots of cash

 

you dont need all that.
my friend has a
86x89 b20vtec
ported gsr head
14.1cp pistons
pro 3
edelbrock victor x intake mani
70mm tb
smsp long tube header

260whp 170wtq tuned by jeff evans

 

to get 200whp all u need is to get a vtec head, higher compression pistons and some type r cams with a port job and good bolt ons with a good tune and ull def get 200whp. thats good for 12.9 with slicks in a eg or ek hatch if you can drive.

 

well its going into a gutted ef i got a gsr head with bisimoto level 2 cams and crower valve train

 

Sorry man, 250 whp b18 NON VTEC is gonna be extremely expensive if even possible. Your talking EXTENSIVE head work,custom manifolds, a fully built bottom end (stroked AND bored) and alot of rpms to hit 250whp...You may even need to run a deckplate.
For your HP goals, I think you should read up in the turbo forums. 250+ whp is alot easier to reach with one of those turbocharger thingys. And you could do it on a stock engine!

 

ls head, ported to similar specs as vtec heads are ported
with aftermarket IM tb and header, all ported and matched
upgraded valvetrain
built bottom end just like it would be for lsvtec

and using LS cams with same as vtec lobe.

wouldnt that yeld same power as the vtec head that had similar work done to it.

i mean if you pretty much make an LS head with vtec cam why wouldnt it be similar power?

given that the idle would be not there at all.

 

250whp is like 280bhp. From 1834cc's its gonna be really hard. Your gonna need stupid high compression. The non vtec heads rocker arms arent designed for high rpm. Usually around 8500 rpms, they like to pop out of their socket. You need to be moving ALOT of air to put 250 to the wheels. Even with a fully ported head, I dont believe it will ever flow as much as a vtec head. You also have smaller valves which means less air.
You MIGHT be able to get the head to flow enough with enough work, but still with just 1.834 liters of displacement, I dont really see it happening without going over 10k rpms.
Even getting a 1.8 VTEC motor to put down 250whp is nearly impossible. I say nearly because Ive never seen one, but that doesnt mean its not possible..

 

oh wait i meant on a b20 block bored out.

 

Id be really impressed to see any B series built bottom end with a built NON VTEC head hit 250whp...
Ive never seen one. Is it possible? Hmmmm...

 

its doable with H series and def F series but not on a small displacement motor like a 1.8 or 2.0

 

we all cant get motors like you trevor lol but i think im going to just go turbo

 

Lots of Nitrous :D

Just get a turbo. You will spool fast if your goals are only 250 hp! And you will pick up more chicks with the BOV riding in that ef-thing :0 lol