Heavy85

I imagine this has been beat to death but I couldn't find it in search. So if someone's search is better than mine I would appreciate pointing me there.

I have a stock '02 LS1 in my Datsun Time Trial car. It's been dead nuts reliable over 20+ track days but I'm looking for a little more power so am eyeballing a Z06 cam upgrade. I want more power but i also want to keep the reliability up and the costs down which is what's pushing me to the Z06 cam. It's bone stock LS1 out of a Z28 with a cone K&N on the MAF with shorty 1 3/4 headers and dual 2.5" exhaust with crossover and straight through Magnaflows. I'm ignorant to tuning so am wondering what, if anything, I would have to do to the ECM to make this cam work? Second question is would the stock LS1 pushrods work or would I need the Z06 pushrods?

Thanks
Cameron

Always2Slow

iTrader: (8)

I would look into a 220 lobed cam with xe high lift lobes. The reliability will be great and will give an increase in power.

30th t/a

iTrader: (51)

The stock LS1 tune will work, but if you want the power & everything to be optimized, then you should get a tune.

I read where people use the 7.4 pushrods for the Z06 cam and everything is fine but I think 7.425 is what is reccomended.

If your going to do it, do it right and get a tune and the 7.425 pushrods.

garygnu

I believe the stock push rods are the same.you can get a mail order tune from frost for the z06 cam.there are better cams but you probably don't want to brake a rear end.look at a tr224,or a TSP 224r,or a EPS 222/226.you will need better springs and push rods.also look at a comp cam trunnion bearings up grade for the rockers.

30th t/a

iTrader: (51)

They are different length pushrods. The LS6 cam has a smaller base circle.


The cam isnt the deciding factor if a rearend is going to break. Dump the clutch a few times with some DR's on with a stock cam and the rear will go bye bye.

HAZ-Matt

iTrader: (8)

The LS6 uses the same length pushrods as an LS1 though because the valve stems in the Z06 spec 243's are longer. If you are using the LS6 cam with LS1 heads and valves then yes the pushrods should be a little longer. That may be why he said the stock pushrods are the same.

camz28arro

iTrader: (12)

I would think a 222-226 EPS cam on a 114-115lsa cam would give near stock drivability and reliability but give a performance boost worth the time/money.

DaveX

I would probably go with a little larger cam, like a 224, and get a good tune. I think you would get the power you are looking for and not sacrifice driveability.

As for pushrods it's a good idea to upgrade to hardened pushrods anyway. To determine length, if you are just changing the cam all you need to do is measure the base circles on the 2 cams and recalculate length accordingly. For example, if the base circle diameter on the new cam is .050" smaller than the base circle diameter on the old cam, you would in theory need pushrods that are .025" longer to maintain the same valvetrain geometry.

thunderstruck507

iTrader: (18)

you should upgrade pushrods and valvesprings

you will also need a tune...hell my friend stuck a 98 cam in his 01 t/a and the damn thing will sputter and spurt on the stock tune, no way I would try to run any bigger without a tune