Cam Tower oiling mod

[talonXracer]

This is the Cam Tower oiling mod from Hytech.

The reason behind the modification is that when highlift cams and stiff valve springs are used excessive wear can be seen on the cam bearing surfaces, this happens at idle and low RPM's. What happens is that the oil pressure at the #5 cam cap is down around 4-7psi, not nearly enough!

This mod redirects oil from the main oil galley and bypasses the VTC and Vtec assemblys(not used at low rpm's) and supplys oil directly to the #5 cam cap.

http://i54.photobucket.com/albums/g96/talonxracer/IMG_0523.jpg

http://i54.photobucket.com/albums/g96/talonxracer/IMG_0522.jpg

And here is a look at the mods to the #5 cam saddle showing the new oil feed path.

http://i54.photobucket.com/albums/g96/talonxracer/IMG_0524.jpg

The rocker shafts are also plugged at the #5 cam cap end to maintain pressure for VTEC.

http://i54.photobucket.com/albums/g96/talonxracer/IMG_0526.jpg

The #2 cam saddle has the stock oil feed location plugged.

http://i54.photobucket.com/albums/g96/talonxracer/IMG_0525.jpg

And the oil for this mod is sourced at the oil sender unit. Right hand line is for my oil pressure gauge sending unit.

http://i54.photobucket.com/albums/g96/talonxracer/IMG_0521.jpg

This pic shows what it looks like all assembled.

http://i54.photobucket.com/albums/g96/talonxracer/IMG_0493-1.jpg

[v1c10us]

so does it continue to bypass VTC and vtec assemblies at high rpms when they are being used, or at those rpms does it not really matter because of the amount of oil or something

[talonXracer]

so does it continue to bypass VTC and vtec assemblies at high rpms when they are being used, or at those rpms does it not really matter because of the amount of oil or something


It is always bypassing the VTC and VTEC with the mod.

[v1c10us]

is that bad for the VTC/vtec assemblies?

[talonXracer]

is that bad for the VTC/vtec assemblies?

Nope, they still get what oil they need, as neither function at idle and there is more than enough oil volume and pressure as you get above 2000rpm's for everything to operate.

[SyckSiR]

thats dope doug, are u gonna do a step by step write up???? on another note, where did u get that sweet fuel line fitting??? i cut the supply line off a stock rail and welded it on a fitting i had to get it to work, but it looks a lil gnarly.....

[talonXracer]

I found them on a online site(the one I have, came with the BDL fuel rail), give me a few to see if I can find the site again.

[talonXracer]

I was just reading the new Honda Tuning and they have an article on this modification in there, John is gonna be swamped with orders now! LOL