whats the best cams to get for my motor. just a stock 1.8t with a k04 giac chip. running 15psi.

 

The stock cams. They breathe just fine with far heavier mods than you have.

 

That answer just doesn't seem right to me... Cams have everything to do with everything.

 

Ok then we can go long-winded lol - that was it in a nutshell. The car has mild mods and is evidently not a race car and the OP made no reference otherwise. The stock cams are a lot like tge stock airbox and induction system on the car - their breathing capabilities are far higher than what the car is tuned for, even with a chipped K04 (evidence - other cars making quite a bit more power via more airflow than a K04 pumps, and they're still using stock cams). The car is a street-driven car so a widespread powerband is needed - stock cams provide a "Jack of all trades, master of none" torque curve - they'll sacrifice ultimate power in one part of the band to allow better output in another. You get into aftermarket cams and often (in order to be worth making/buying/installing/tuning), they'll sacrifice a good chunk of the powerband in terms of response and output in order to maximize the output in a more-narrowly defined rev range. An engine like Mike is running is a great candidate for aftermarket cams, since that's a fairly purpose-built car that's made to scream at high RPM to take advantage of that turbo - using stock cams would cripple its output in the part of the band where he needs it to flow.

For the OP though, a comparatively mild engine and tune, in a street-driven car, doesn't need (and probably would not even like) the peaky power production that an aftermarket cam set would make. It needs a spread of torque and flexibility, not a "wait for it and BANG" delivery that he'd more likely end up with, especially on a K04. There are probably mild cams out there that wouldn't make as much of a pinpoint torque curve, but at this power level they're not likely to bump the output by much, and I really doubt the output would justify the costs. Ergo, stock cams are best for that car. Not necessarily the cams that'd put the biggest number on the dyno chart but the best for the intentions of the car.

 

Pretty well put devil. The k04 doesn't have a flow difference enough over the k03 to require new cam. It also doesn't hold boost much higher either. If it did, I would suggest a valve setup first so the head could hold thru higher rpms.

 

the k04 is the restriction in his setup, not the head. all aggressive cams would do is mis-match the efficiency range of his turbo and head.


His k04 can't make power over 6k, there is no reason to build the head to rev to 8k...

 

I'm not sure if you were responding to me but I said "if it did". Meaning it doesn't lol.

 

just saying it in general.

 

good show sir

 

You are 100% correct when the car has a "real" turbo. The stock cams are designed for a stock size turbo which the K04 is. There is not much power to gain by changing cams with a K04, just not much of a bang for the buck type of mod at that point. Really dont need to do cams till you start running a GT2871r or larger.

We drive A4's not Evo's. lol