H22 Information

Could the h22 have been Hondas biggest success? It is very posible. The H22 motor went out of production in 2001 with the last and final Honda Prelude. Since than the H22 has been talked about and used over an over again. With several diffrent versions out there, its hard to keep track off all the actual facts of each engine, vs the fairy tales that float around the web.

The H22 was Hondas first introduction with the Vtec motor. Vtec has been quite a
sensation with the little 4 cylinder motors out there, giving them higher out put, and higher
RPM capabilties that caught on very quickly in the tuning world. Variable valve electronic timing
lets a thrid rocker connect to the other 2 rockers, so that the lobes on the cam can open the valves
up higher and longer, letting more fuel, and air into combustion chamber to create more power.
It is engaged around 5k rpms, depending on the motor set up. Now some might ask, why does it
wait until 5k RPMs to actually open up? Well that is very simple really.

Vtec, can not create more power at lower RPMs, in fact it causes the motor to actually
lose power, if it is engauged to soon. Why does it do this, some might ask. Well many can
speculate why it does this. For one reason, It is engauged with the engine oil pressure. At certain
revolutions, the engine creates a given ammount of oil pressure. It is required for some other vtec
equipment to allow the flow of the oil pressure into the rocker assembely to engauge the third lobe.
If there is a lack of oil pressure, it wont engauge properly.

Back to the 5k RPM engaugement point. Picture this, you have to swing a 50 pound
weight around in a circle. You want to create as much force as possible to knock down a wall.
Now at 50 pounds on the end of the rope, only so much force can be given. However if you add
more weight to the rope you get more force. Say you are to add another 300 lbs. Well obviously
you cant even get that much weight off the ground let alone to swing it in a circle. But if you were
to transfer that weight after you have been swinging the rope with the 50 lbs weight around for a
few seconds, you would obviously get much more force in your swing cause you have built up
momentum. Vtec works the same way, it uses momentum allready there to efficently produce more power.

Such companies as JUN racing have harnessed this power them selves. As a company
built on aftermarket engine parts,JUN themselves hold the title of aftermarket performance products.
They not only gaureentee more power, they test and prove it themselves. JUN racing has designed their camshafts to create more lift on the rotation. Higher lift when properly tuned, will create more power over stock engines anyday of the week. These camshafts are of the utmost quailty and consistency out there.JUN racing will take any H22 to another level.

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