supercharged H22

[toycar]

Sure it will, thats were peak boost was. I have lower low end torque that a stock h22 because of my cams and intake manifold, theyre designed for top end hp. I have a 3in exhaust from the header back, I will be getting a real header when it goes back together. I only stuck with the stock one for the time being until I was satisfied this build would work. As far as power goes I think a 51hp gain on 4psi is pretty sufficient.

What exactly do you mean my video looks slow? Which video, dyno or street?

Just pointing out that if it were me, I wouldn't change much more about it.


High compression, supercharged, mentioned maybe a meth kit.

Seriously, you want to be able to drive this around town right? You have too nice of a looking car to make this a dyno queen. Keep it 300whp or less so you can atleast drive it back and fourth to work if you want.


As you are probably already seeing, gears are becoming uselss, torque steer is a bitch, traction is becoming a problem. These and other related problems are only going to get worse with more power.


Fuck all of that unless you are planning on doing a track car. Track cars shouldn't look as nice as your car does. Track cars get money spent on going fast.


Cars as nice as yours are meant to be driven around regularly.


My thoughts, keep it driveable so you'll enjoy it. Too much powa is no fun on the streets, especially in stop and go traffic.

[tutsuo]

What does that have to do with anything?

So i can see how it's holding up... You know glassing over you'r walls or shit shaving down cracking etc... fairly common thing to do actually. -.-"

[cincy90h22]

Buddy, get a hks style pull BOV and that will cure your flutter problems.



A greddy is pushed shut via spring pressure and is pushed open to relieve pressure in the charge pipe as it spikes when the throttle closes.

An hks style valve pulls closed from vac and remains wide open under no load.

I may try that, thanks

Whens the last time you did a compression test ? and how did your cross hatches look? And are you setting ur rev limiter low 7ish or high 8+ ?

If you ever take the head off take a picture of your cylinder walls for me.

What does that have to do with anything?

you should be making more power, you graph says it, there is no way a h22 head will make peak tq at 7500 rpm, and if it does its because the exhaust is restricting it
being that you have a stock header, you should start by that, tq might drop a little after an exhaust upgrade but you should see about 10whp more on that setup

your video seems really slow, but i believe the graph

Sure it will, thats were peak boost was. I have lower low end torque that a stock h22 because of my cams and intake manifold, theyre designed for top end hp. I have a 3in exhaust from the header back, I will be getting a real header when it goes back together. I only stuck with the stock one for the time being until I was satisfied this build would work. As far as power goes I think a 51hp gain on 4psi is pretty sufficient.

What exactly do you mean my video looks slow? Which video, dyno or street?

[PR CB7]

you should be making more power, you graph says it, there is no way a h22 head will make peak tq at 7500 rpm, and if it does its because the exhaust is restricting it
being that you have a stock header, you should start by that, tq might drop a little after an exhaust upgrade but you should see about 10whp more on that setup

your video seems really slow, but i believe the graph

[tutsuo]

He is revving to 8 I think, at least he was in the vid

Should be super interesting with the high comp pistons, def looking forward to that

If you ever take the head off take a picture of your cylinder walls for me.

[gloryaccordy]

Whens the last time you did a compression test ? and how did your cross hatches look? And are you setting ur rev limiter low 7ish or high 8+ ?

He is revving to 8 I think, at least he was in the vid

Should be super interesting with the high comp pistons, def looking forward to that

[tutsuo]

H trans.

Whens the last time you did a compression test ? and how did your cross hatches look? And are you setting ur rev limiter low 7ish or high 8+ ?

[toycar]

Buddy, get a hks style pull BOV and that will cure your flutter problems.



A greddy is pushed shut via spring pressure and is pushed open to relieve pressure in the charge pipe as it spikes when the throttle closes.

An hks style valve pulls closed from vac and remains wide open under no load.

[cincy90h22]

H trans.

[tutsuo]

Are you running a F or H transmission ? Oh and do they have F LSD trans ?

[cincy90h22]

Yea currently just a regular greddy rs bov. Thats what I was saying a post or two back, there is so much air with the throttle closed at idle it doesnt open enough to release it adequately. When letting off the throttle, it does ok, again - I said I was contemplating running two. I have had it surge the compressor and throw the belt off.. hense my concern.

[deevergote]

I'm sure you've addressed it somewhere in the 236 posts of this thread, but I don't see it at a quick glance... How are you dealing with the closing of the throttle plate? I mean, the engine is still spinning the compressor, so it's still ramming air at the closed throttle plate, correct?
WikkedV16 had that issue when he strapped a roots blower to the front of a Prelude. As soon as he lifted off the gas, it popped the charge piping right off.
Do you just vent via a blowoff valve?

[cincy90h22]

But really im not interested in regulating boost on my setup. It would be an option on a clutch type supercharger if someone ever uses one.

[cincy90h22]

Its not a turbo.

It could still be possible to vent off the charge air, but idk how easily/consistantly you can control pressurized air. At least when a wastegate regulates boost, its reducing speed of the compressor, so before the boost happens. I would have to release more air from the charge pipe, like a boost leak. I dont know, honestly. How well it would work, if it would.

When this thing goes back together, im contemplating adding another bov. My greddy doesnt seem to be able to handle the airflow. I need one or two that will open at idle, not just when you release the throttle.

[deevergote]

The supercharger I picked up is a clutch-activated type from a Benz. I've always wondered if I could essentially turn it off until I wanted power, without totally choking out the engine.

But yeah, on public roads, a ton of power is difficult to use. Especially if you're not conscious of it. Hell, my basically stock CTS-V (06) is a handfull, even with RWD, LSD, traction control, etc... If I'm on a rough patch of road, I have to be very careful with the clutch and throttle, or the rear end is all over the place. Traction with a FWD car is even worse, especially since the wheels that determine the car's direction are the ones that will be losing traction!