Hey guys.. what's your take on building an H23/Vtec? I'll thinking of either using an H22 block with H23 crank, forged pistons and rods... or just use an H23 block instead.. What would be better? Does the H23 block have oil squirters?

I know the rod to stroke ratio isn't all that good.. So what about a deck plate? Would that help with displacement?

 

Mine is fucked! Contibuting factors are a UR pulley and possible shitty H23 rods...either way my crank is broken...

Top Power has it...I'll know in a couple weeks. I'm actually considering destroking to 2.1L with the F20B crank to try and make more top end power.

Just don't rev it too high....I recommend better rods...


[Modified by satan_srv, 11:04 PM 11/17/2002]

 

Grant Lockwood (who ran a H23a1 VTEC frank motor for years in World Challenge in a 5th gen prelude) said the stock rods were the strongest he has used, and used to blow aftermarket rods all the time....

 

i dont see how that is but if he had it for 5 years i guess hes right....

 

Hey Satan,

Top Power eh? That's just across the street from my shop.. LOL...

 

yeah go across the street and play with my crank...it's fun!

 

Um... I better not.. just incase they sick the dog on me.. LOL

 

If you're referring to Silver Star.. He's still here.

 

He's moving to mississauga in about a week, which is a bitch cause my motor has to wait!

 

Hey hey.. let's get back on topic

 

Okay the H23 block does not have oil squirters, but you can add them.

Some other people on here have said that with forged pistons oil squirters aren't really that necessary and the oil pressure may be beneficial elsewhere. I believe there are some clearance issues with H23 crank in an H22 block with the stock oilsquirters. They need to be modified to some extent.

 

Hey Satan,

I just noticed your numbers in your sig.. 203 160... Mine numbers were 185 163.. Hm.. I wonder if it was the extra 0.1L that made a difference in teh HP... But....what was done to the motor? stock? port adn polish???

 

Haha no it wasn't just the displacement:

H23A1 CRANK KNIFE EDGED
H23A1 CONNECTING RODS SHOT PEENED
H23A1 SLEEVED BLOCK STOCK BORE (DARTON SLEEVES)
H22A1 OIL SQUIRTERS
H22A1 DOHC VTEC HEAD
ARIAS FORGED PISTONS 11.5:1 COMPRESSION
CROWER STAGE 3 CAMSHAFTS
DUAL COIL VALVESPRINGS
TITANIUM VALVE SPRING RETAINERS
PORT AND POLISHED H22A1 HEAD
3 ANGLE COMPETITION VALVE JOB
ENTIRE MOTOR BALANCED AND LIGHTENED
64MM BORE THROTTLE BODY
370CC RC INJECTORS
AEM FUEL PRESSURE REGULATOR
UNORTHODOX CRANK PULLEY
AEM CAM GEARS
ARP STUD BOLTS
CLUTCHMASTERS STAGE 3 CLUTCH
CLUTCHMASTERS ALUMINUM FLYWHEEL 9LBS
KAAZ LIMITED SLIP DIFFERENTIAL
GSR ECU CHIPPED CUSTOM FUEL/SPARK

Most likely the stage 3 cams and the fuel tuning done...if I had a V-AFC I could fine tune for more power...but anyways. I think it could have made a lot more power. Especially if we had tuned the cams...they were at stock settings.

How did you make 163 tq with an H22a?

 

Hm.. damn.. seems like alot of work for an extra 20hp..My motor was stock and I ran those numbers.. All I have is a ported intake manifold and cam gears.. I'm even running a chipped sohc ecu..

 

Making n/a power in our cars is very expensive, the hp:$ ratio sucks..

B00st owns.

Regarding the h23 vtec, save yourself a ton of trouble, time and money and just bore/sleeve your h22 block and you'll still get the increase of displacement to 2.3l without all of the other related work. If you are building for a roadrace or rally car, then they hybrid becomes more appealing; but for top end power it's a waste of effort, IMO.

 

No.. my motor will be for drag only.. So.. I'm trying to get as much power as possible

 

163 ft lbs is high for an h22 that hasn't been taken apart. Are those corrected or actual numbers ?

Do you have a dyno chart you can post ???



[Modified by Mover, 3:03 PM 11/18/2002]

 

Like I said tuning wasn't completed....It should be making 230hp...oh well.

Yeah again I wanna know how you made 163 of tq on a stock engine...

 

OH... now 230hp sounds better.

I have no idea how we got those numbers, but we dynoed at DPS... Satan, you might know where that is..

 

strokers rule!

 

163tq uncorrected most likely.

 

Thats what I thought.

185 hp . 163 ft-lbs (corrected) with just a ported intake manifold, cam gears , chipped ecu on a stock h22.... I don't think so.


[Modified by Mover, 7:05 PM 11/18/2002]

 

So what's that in corrected numbers?

 

I don't know...Jeff at DPS usually gives SAE numbers....

 

So is that correct or no?