looks like im going forth with the 2.3 vtec. i just ordered all the parts i need less the bearings and bore dependant pieces since my 2.2 isn't down yet.
i need to know what's the highest anyone here or you know of has reved the 2.3 consistently without fail. if it can withstand a good dose of 7.8k i'll be happy...for now. the 2.3 reciprocating pieces will be balanced and the rods shotpeened, which from what i understand are one of the main weak points in reving a motor higher. and through my readings, shotpeening strengthens factory rods 100% or so?...thats from scc mag. i'll also have the oil jets that are crucial with the 2.2 vtecs.
can anyone enlighten me? 7.8k is nice for now but another 1k would be nice after more parts to warrant more r's.
thanks guys/girls
v
__________________
vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03
for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16
what are the crower 2's good for regarding rpm? if anything 7.8k is just fine, but are there 2.3's ok going that far?
the bearings i'll be using are factory. i have been told that je? makes bearings that will outlast any honda bearing...didn't even know they made honda bearings or bearings at all.
__________________
vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03
for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16
the rods are really poor, even if shot peened. Whilst this will make them less prone to crack due to manufacturing faults, they are just not up to that stress in the H23s bore. Unless you go full house on the motor, id look toward 7k for peak power.
Originally posted by AuSSI the rods are really poor, even if shot peened. Whilst this will make them less prone to crack due to manufacturing faults, they are just not up to that stress in the H23s bore. Unless you go full house on the motor, id look toward 7k for peak power.
i agree with that statement... and best of luck. Keep us updated... i chickened out on that venture =] went for a full swap instead. hehe
Originally posted by AuSSI the rods are really poor, even if shot peened. Whilst this will make them less prone to crack due to manufacturing faults, they are just not up to that stress in the H23s bore. Unless you go full house on the motor, id look toward 7k for peak power.
Brady from HP.com was putting out quite a bit of horsepower on his h23 (178). I know he reved it to 7800rpm (peak power point). He had aggressive cams, some headwork and a stock bottom end. Im not sure what else. Let me go find his website....
__________________
1999 Prelude Base (daily driver)
1992 Prelude Si 4WS (broken)
"One day at a time."
Last edited by Jordan_4WS; 07-25-2002 at 02:09 PM.
jordan, thats pretty amazing. 13.0 on a factory bottom end with 100 wet shot and 7.8k shifts. i emailed this guy, hopefully he'll have nice info for me. i'd like to know how long he has been reving that high...
if need be i can scrounge up 360 for eagle rods, but i haven't seen any 2.3 rods on gb. are there 2.3 eagle rods?
crate, yea i went full swap too, but i have an itch...ya know? somethings tellin me that this will work, and work well. inlinefour.com has built a couple 2.3vtec's and they praise the build if done well. the only complaint was that its expensive. but since i have both motors and a nice discount at honda i have things well under 1k, closer to 800 including machine work.
v
v
__________________
vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03
for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16
Originally posted by 93si4ws jordan, thats pretty amazing. 13.0 on a factory bottom end with 100 wet shot and 7.8k shifts. i emailed this guy, hopefully he'll have nice info for me. i'd like to know how long he has been reving that high...
I dont know how long he ran his motor for, but I think he ended up wrecking. If you do not know brady was around back in the early days of HP.com, and he is the one who came up with all those free-mods. He is an avid road racer... You might also want to search on hp.com's discussion boards, Im sure he has posted alot of usefull information in the past. http://www.hondaprelude.com/forums/search.asp
Jordan
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1999 Prelude Base (daily driver)
1992 Prelude Si 4WS (broken)
the following is what im getting from other people, i've emailed countless numbers of people with 2.3vtecs. i checks hp.com and there are about 6 registered with 2.3vtecs. and tons more claiming they're in building stage right now. this is just some of what i've collected...
JETLUDE: The problem was bottom end(Crankshaft/bearing) failure.H23 bottoms are not built as tough as H22's......they were not designed to handle 8000 (vtec) rpms.
ROCKETLUDE: No, I never did use the stock H23 rods, and I did put in the oil jet. IF anything will give out it would be the rod bolts, and I would be willing to bet that the Vtec bolts( they are actually a stud) would fit on the h23 rods. Check out it and see what fits. If not see if ARP has anything that could fit. I don't see why the bolts would be different, but who knows.
JJBARON: As far as the piston oil jets, I was told that the H22A jet assembly WILL fit in the H23A block, but that the jets need to be cut and bent. I would definitely not increase your rev limiter much beyond that of the factory H23 with the OEM bottom end. Though I do have an VERY responsible friend who has run his stock H23 Prelude pretty hard (mostly track miles), pretty consistently up to 7K, sometimes beyond. Basically if it's a stock block I would only raise the redline if you know a good deal about the history of the block. I have a set of Crower H23 rods for my project. Actually a lot of things I have seen lately make me think that it may be better overall to use the H22 block instead of the 2.3. Of course, I would have an excess of parts if I changed direction like this, but i have heard that the H22 is such a capable head that you can make more power with the 2.2 than with the
rev-limited 2.3 (even if the 2.3 was reworked heavily, it still has horrible R/S ratio).
__________________
vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03
for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16
rocketlude is the guy with the 2.3vtec turbo pumping out 552hp.
INLINEFOUR.COM: If you plan to do this conversion, this is what you need:
H23 bottom-end
Use the H23 tensioner instead of the H22 tensioner
Complete H22 top-end:
cylinder head
intake manifold
head bolts
H22 water pump
H22 oil pump
H22 timing belt
When rebuilding the bottom-end ALWAYS use OEM honda rings, bearings and gaskets.
im still looking for long term usage. how long the 2.3vtec's have been running. anyone know about the ls/vtec's?? whats the rev limit on the ls motor? and the gsr/si motors? and how does the simple ls/vtec build fair with that rev limit???
v
__________________
vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03
for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16
ROCKETLUDE updated: No, the oil jets don't have to be modified to fit on the h23 block. Once you get in there you will realize there are holes already drilled and tapped for the oil jets. Most likely to keep costs down they just didn't put them in the h23 motor. I havn't had any problems out of my motor so far. I hope to have it back to the dyno for more tuning with larger injectors and I expect to see WHP close to 650hp on 30psi. I guess I won't really know until I get it back to the dyno. If you need any parts or help let me know I own a shop in Lexington Kentucky. I can
probably get you any parts cheaper than you can find any where else. If you can find a price I probably can beat it.
__________________
vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03
for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16
inlinefour.com confirms that oil jets can be used and shotpeening the rods should be fine.
spoke to rocketlude for a good portion of the day. he says my plans are perfect for a daily driver/weekend warrior. but for serious power he says rods and pistons of at most 12:1. he says that the rod ratio isn't that bad being 1.49:1 and the vtec being 1.55:1...what was the ideal ratio mentioned?? 1.79? can't remember.
__________________
vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03
for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16
ok people are telling me the rod bolts are to blame for the 2.3's bad design and power handling but i just checked and the rod bolts are the same from 2.2 to 2.3. so there goes another suspicion. i still would like more info from anyone else here....2.3 rpm limits anyone??????
__________________
vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03
for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16
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