non-staggered OEM cams?

as far as i'm aware they are the same cams.

isnt there an offset of something like 108* vs 110*?

to quote Ian Rezlo: "from the factory mitsu runs a staggered cam setup, IE the front cam has a larger centerline than the rear (106 rear and 110 front), the only reason that they do that is to create an engine that has good amounts of top and bottom end"

im not too worried about a slight low end loss, but a little top end gain would be nice

Since I'm not a V6 guy, I don't follow the engine mods too closely, but I do remember this being talking about a long time ago. I want to say it was RPW back when they used to post here. Using cam gears or maybe just a cam gear on the rear to get both banks in phase proved to be beneficial in making power.

I remember this only because I have wondered for years why this hasn't been talked about or done more often.

Edit: You got it. It was Rezlo.

link to the info?

Rezlo's info is in the "why the 6g7* blows up" FAQ on page 2

6G72Duster said:

my question is: is there any benefit to running a set of the same cams, 2 front cams or two rear cams to eliminate the offset/staggering? Would this, with a set of adj. cam gears be worth anything for longevity or power?

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That is an interesting solution. Since our firing order is sequential, it might work. You'll have to check the lobe orientation to be sure. It would make sense to change out the front cam, because of access.

If the 106 and 110 cams are direct swaps for each other(that is still an 'if'), then the only unknown is which set would be better for your setup and how well would it work. I hate to say it, but I'd rather drop the coin on a tested set of RPW cams. You'd hate to find out that you lost power.

feah, if i had the coin to drop at the moment. it was a thought i had this weekendwhen i was looking at taking my dizzy off the heads

Centerline can easily be changed with a cam gear. No need to swap cams. Just use a cam gear and advance or retard it 4 degrees depending on which cam you put it on. Advancing lowers the power band a few hundred RPM. Retarding goes the other way.

FlashBlueRS said:

Centerline can easily be changed with a cam gear. No need to swap cams. Just use a cam gear and advance or retard it 4 degrees depending on which cam you put it on. Advancing lowers the power band a few hundred RPM. Retarding goes the other way.

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Lobe centerlines are a feature that is ground into the cam. Its the Centerline between the exhaust and intake lobes. Retarding or advancing the cam wont change that.

The cams wont be a direct swap between the front and rear banks. They are different lengths. Not sure if they would work or not if you had the longer cam machined down. They are different lengths because the two banks are offset, but the cam gears have to line up for the belt.

There is only 1 cam sensor. (the distrbutor)
If you changed the timing in the front bank there would be no way for the ECU to know that and you would still be injecting fuel and firing plugs to late or early. What ever the case may be.

That said I made my front and rear banks equal when I did my cams.
I have never thought of that until now but it seems like the timing and injection would be way off on the front bank since I did this.

rc_maniac said:

Lobe centerlines are a feature that is ground into the cam. Its the Centerline between the exhaust and intake lobes. Retarding or advancing the cam wont change that.

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You're right. I'm spoiled with the DOHC head where the centerline can easily be changed and wasn't thinking. Shifting the power band still applies.

im not using the cam sensor/distributor at all. it is getting removed and a blockoff plate made up. im running a wasted spark DIS ignition off of my standalone

i thought the centerline was ground into the cam profile.

good point on the offset heads, ill take a look at cam length when i replace my valve cover gaskets

also, would adding some adj. cam gears and retarding the cams still work like normal even though theres the offset centerline? i may want to see what bringing the powerband up a little does