bluehbcivic

well he over revved the engine and piston failed.. came out of wrist pin!

he built an h22 closed deck sleeved, made 9.28@148mph on a 1800lb chassis with 450whp, currently maxxed out the dyno and he has alot of work to do to the car to be safe in 8's


back to topic? h23a bluetop dynosheets

GabyGoogle

H23 bluetop 100% stock internals
Balance shaft deleted
Logic tri y
S2 cam gears (+1 ex) (0 in)
3" E-cutout
S2 IM
Blox 74mm TB
3.5" custom 4" long out to the bumper
evo/bisi H2B kit (S80 jdm lsd 4.40)
91 oct
with 215hp I ran 12.4 112mph with drag radial tires.

I want to try blox type b or pro2 with flat valves and supertech valvetrain

Uncle Dave

Some impressive setups I am looking at one of these engines to swap into my CD5 Accord the F22B1 needs to go and I found a very good deal on a H23a bluetop engine.

bluehbcivic

DDtech got to test these engines

Uncle Dave

1991_crxsi did you degree the Pro-1's in or just use quick settings,and what valve train setup are you using?

bluehbcivic DDTECH has been working very hard on his products and is starting to get very good results.

1991_crxsi

iTrader: (1)

YES YES YES!!! I agree.

I should be getting some cams from him within a month or so. It depends if I can get these Pro1's to work (you know all about that already). If not then I will post a DDTECH cam dyno on mine. BTW Did you fill weld the underside of your intake to get the inside of the plenum flush like Randy Owens' (NAH2B)? That is how I'm doing mine right now, and I know yours works awesome too so that is why I ask.

DDTECH

These heads and this motor with a tad more displacement will like some minor tweaks done rather then the standard h22.

These are really nice motors and while they are rare, from what I gather, these heads flow a good bit and i'm a huge lover of bigger displacement.. I think a pro1 might be a decent all around cam for these motors.. But they will like bigger cams.

We can most definitely work out something if you're testing, I love helping and getting results.

1991_crxsi

iTrader: (1)

PM me. Lets do it man.

dellas

Here is a healthy H23A motor that I tuned some time ago

H23A stock block
Euro-R Head
Euro-R Intake Manifold
Euro-R Throttle Body
3 inch Intake
JDM aftermarket header(JASMA approved)
3 inch exhaust

This was in an Accord, ran very well. Uncle Dave you will love this engine....

bluehbcivic

Do you have the sae corrected version?

Uncle Dave

Yeah I am getting keen to do something just as long as I can keep cruise control

DDTECH

which is which..?

DDTECH

On a lot of setups I see a lot of shops talking about the pro1's losing low/midrange, and gaining peak

What do you guys, think causes this? Open discussion..I'd like to get yalls feedback on the situation.

bluehbcivic

230whp is pro1

bluehbcivic

Non vtec lobes and short duration

(I have no idea hahaha)

DDTECH

Short duration on what?

1991_crxsi

iTrader: (1)

The one with the loss in mid-range and higher peak is the Pro1's.
Honestly, I have no idea why this happened on my H23 too. The stock non vtec lobes outperformed the Pro1's, and the HP powerband on the Pro1's didn't beat out stock until 6700. The Pro1's lacked TQ throughout as well. I have seen the Pro1's do much much better on H22's though.
Here is my GUESS: I AM NOT A CAM ENGINEER SO IT IS JUST A GUESS: Perhaps the larger displacement forces more gasses through the valves in general and the 95 mm stroke changes the characteristics of where the powerband and torque cure naturally arches. Therefore the cam profile of the Pro1's was designed for an engine that does not displace as much gasses through the valves at the same RPMS and instead was designed for an engine with different torque HP dynamics. For example: An engine with a shorter stroke and the same bore will displace less gas at the same RPM as an engine with a longer stroke and the same bore. A cam designed to operate best (or allow the valves to open an let the gasses flow at a certain rate) at certain RPMs may not fit the natural gas displacement between the different engines at the same RPMs. Therefore the same Cam would perform differently in the different engines based solely on the stroke. The smaller engine would have to rev higher to displace the same amount of gas and take advantage of the cam profile, but since the cams are designed with a certain RPM and gas displacement in mind the cams would not perform the same. Even though the gas volume displacement is the same at different RPMSthe velocity of the gasses would differ (because the piston is traveling a different speed and at a different rate in the cylinder to move the same volume. Also the piston might have to move 1.2 times to move the same amount of gasses, but since each turn of the engine is independent, the .2 is never really made up for as far as the cam profile is concerned. Although viewed in the aggregate of what the engine produces at an particular RPM it may.). Likewise engines with a shorter stroke also produce torque latter for similar reasons. Although the Pro1 is marketed as a "H series Cam" it was really designed for the typical natural performance characteristics of the H22 and not the H23A. An engine with a torque curve that comes on later, and must move at a higher RPM to displace the same volume. I think that is why the cam doesn't work well on the H23A. It wasn't designed for it.

zuptidi

Setup:
h23
pro1
logic header
e85
Ported OEM Twin TB

the 246 is on pump gas and the 241 is on e85, but theyre on two different dynos.. so try not to compare numbers between the two sheets

zuptidi

for you guys with bad midrange restuls, did you play with cam gears..
Both sheets i posted showed the gains from adjusting cam gears

ESP.net

That's the thing... with most decent agressive cams such as the pro 1 and H22/H23 is the loss of torque and midrange but peak power...

This is with 11-1 and under compression ratio

Yes dialing in the cam gears is the key most just leave it close to recommendations. However you need to figure out your P2V clearance first. Stepping up to a bigger lift cam such as pro 1/2 there won't be too much room to play.

As far as the turbo game goes... almost all H guys have used stock jdm/euro H22 cams... the #'s have always been good. I have seen loss in hp and torque with turbo special cams. I feel the stock H22/EuroR/Type S cams will be what you want to use till upwards of 650+ whp. Then from there the Pro 1's I think would be the better option.

bluehbcivic

I did play with cams

1991_crxsi

iTrader: (1)

I let my tuner do all that. I don't know what he did exactly, but I would think that he did. He is a good tuner for sure.
What did you do to the bottom end? Interesting "Ported OEM Twin TB" set up you made. Seems to work really well.

koczeka

Too early VTEC engagement with the P1?!
Set it at 6K.

DDTECH

Zolton, are you saying, people are setting vtec too early on p1's?..

bluehbcivic

Lol we set it where it have to be.