im talking the cammed sound at idle...*drools*

 

you mean the cam "lope"? Won't be like the v8's if thats what your thinking. And from the sounds of things its not an extreme cam grind so not very much if any.

 

Its friday!

Mike, stop driving and come give us an update.

 

Cam lope is a function of duration and overlap. A cam that works well at high RPM (lots of duration and overlap) will idle bad. The whole point of VVT is to be able to run a more performance-oriented cam at high RPM, and then back the cam timing off at low RPM to make it run like a more conservative grind.

When I had an Alfa Romeo with VVT, you checked the VVT function by jumpering the wire for it (it was electric instead of oil pressure hydraulic). That put the cam in performance mode at idle. The difference was amazing - it loped like a road-racer at idle with the VVT engaged, but sounded like a smooth, low HP Toyota or something with it not engaged.

So, we get the best of both worlds. If you like the "cammy" idle, it should be possible to have the VVT engaged all the time. But that would kill low end torque, and probably do a number on fuel economy (not to mention it wouldn't pass emissions if you live somewhere like Colorado or California).

-J-

 

Well just recently HP tuners was able to update there software to adjust the vvt. Its a lil complex and still new so it will be time till we can take full advantage of the cams.

 

STAGE2 TRI-FLOW CAMS have arrived home safely,they had to I borrowed a friends 90hp escourt to pick em up, Ill try to put them on tommorro if not Sunday, the Cams ended up being more advanced than first thought,I was told not to expect anything under 22whp and possibly more,especially with a tune,but if the cams run great as is,Im holding off the tune and buying my header/DP instead in combo with the pending release of the Sema G5 GT Ill should have that juicy new throttle body too

 

Pucking Fumped

 

So they are stage 2's then huh? and wow nothing under 22whp 200whp here we come wwwwwwweeeeeeeeeeee

 

the best part will come in a few days,where non vvti have had to tune in their cams$$$$ we might not have to,the designer created these as triflow,this also creates better harmony with the cars computer,now dont get me wrong tuning them in would produce better gains,but at the same time the car should not run rough without a tune,guess I'll know come sunday

 

With these we will definatly be able to hit 200whp easy. Full exhaust, TB, crank pully, cams, intake, tune, and your seeing 220

 

Brandon i like they way you think

 

Oh yeah 200+ n/a ain't gonna be a problem now!

Hey can imagine the face of a stock SC guy if he can't run away from a 2.4! LOL! That wuld be worth it alone! And then just to realy screw with him, tell him you got nothing but bolt ons! LOL!!

 

sssshhhhhhh jackalope there gonna know......"pop the hood" ok its only an intake and full exhaust

 

can an expert tell me with these cam's would it be the smarter thing to do to use some 2.0L springs and retariners since they are stage 2? also i read on here a while back that our fuel injectors are at 90% and getting close to the 200hp we should probably just upgrade to the 2.0L injectors to be on the safe side n oppt hp gains? can an expert jump in and answer these questions?

 

[QUOTE=UpOnGaMe]can an expert tell me with these cam's would it be the smarter thing to do to use some 2.0L springs and retariners since they are stage 2? also i read on here a while back that our fuel injectors are at 90% and getting close to the 200hp we should probably just upgrade to the 2.0L injectors to be on the safe side n oppt hp gains? can an expert jump in and answer these questions?[/QUOT youre right,stg3 would be a swap but a dyno will show how lean it will be runnin at the higher rpm and we will know for sure

 

Can you get him to give you the specs off the 2.4 cams -- duration, lift, lobe centers, etc.? And if he knows what the specs are for the 2.2 ask him for those too -- and then post em? Please?

 

Why would someone want to waste their investment and just give out the info for all to have

 

LOL....Don't mean for them to give up their cam specs -- from what you said about them saying GM did a great job they must have spec'd the GM cams -- would like to know what the factory GM cam specs are.

 

this isnt true. hp tuner's update isnt dealing with adjusting vvt, its dealing with adjusting VE, these are completely different things. in fact, im at the point now i dont believe our ecm controls vvt as much as everyone thinks.

 

Doesn't our VVT just switch at a certain rpm? Kind of like on the ford truck engines the intake manifold valves just open at 3000 or 3500. I was under the impression that the VVT allows for a smooth idle and driveable power down low and gets more agressive for better breathing up high. doesn't take a whole pile of computer mapping to do that.

Correct me if i'm wrong...

 

I was under the impression that the vvt works strictly off of oil pressure.

So I'm guessing that if we went with a slightly more viscous oil (or a higher pressure oil pump) the vvt would allow the valves to fully open at lower rpm?

Or is it also ECM regulated?

By the way, it would be silly to buy a cam without knowing it's lift and duration.

2 cams can have identical lift and duration, but have entirely different lobe profiles. Each will make the engine run completely differently. This is where the magic is.

 

so are the cams in yet?

 

they will be going in tomoorro at 3pm pacific time

 

let me know how it takes

 

just curious what kind of whp range we looking at when someone gets cams, CAI, header and downpipe, exhaust, lightweight crankshaft pulley, and tuning?