Who has got them to idle correctly? I have searched and read that some got them to idle close to stock (I read 850rpm to be exact). Dyno tuners chime in, share your techniques and tips. Thanks in advance.

 

Software:
* Set target idle to 850rpm
* Set lowest moving idle point to 900rpm, and the highest to 1300rpm, scale between.
* Play with the IACV Duty Cycle slider to smooth out the idle
* Fueling should be at stoich or slightly richer (14.5:1-14.7:1)
* Standard base ignition timing of 16.5* should idle the engine well, if the ECU is having a hard time hitting target idle, and you have already adjusted the IACV Duty Cycle, you can bump ignition timing to 18-19*.

Hardware:
* Make sure cams are at or around recommended centers.
* Preload the throttle stop (8mm nut with allen-head adjustment) on the underside of the throttle pulley, you want to have the plate open just enough where you can barely see a flashlight shine through the other side (this requires you to have the TB off).
* The last thing you do is use the flathead screw idle speed adjust to make finite changes.

A 'hunting' idle is usually the result of large changes in fuel and/or ignition timing around the idle cells, and not hardware related.

I've followed this idea for getting every aftermarket cam to idle, including a number of Pro-series cams (including the Pro-3's on my motor).

The more airflow the engine has (combination of displacement and engine work), the lower the idle speed can be. This H22 I built/tuned last year (Pro-2's) I was able to adjust the target idle to 800rpm. (ignore the O2 display, the WB was not wired into eCtune).

http://www.youtube.com/watch?v=kGPPDerCYxY

 

Very nice. Keep them coming.

 

I'm also interested to see what tuners have to say about these cams. Good thread idea.

 

Sorry im not a tuner but i have fitted and degreed several pro 2's. Mine are degreed exactly to spec and idles well at 900+/-50 rpm. Didnt have to mess with anything. Synchronised ecu timing with dizzy, set to 16deg. Even after upsizing my tb to 70mm BEFORE my retune it still idled perfect while putting car on trailer.

 

Tuned about 8 sets, including my own. I dont like the cams to idle below 900, thats just me tho
i have mine around 975ish on my own motor..
not hard..

 

After reaching running temperatures, are you guys still along 950 rpm? How many people daily drive their cars with these camshafts?

 

I daily driven mine with pro2's..

Your having idling problems because your not adjusting your moving idle / stopping idle tables.. they are probably still at 702 or whatever the default is, and its trying to idle there instead of your target idle.

 

What should cold idle and warm idle cut and resume values be?

 

Whatever you want your idle to be in the end.

You know when your coming to a stop but coasting? And you have the clutch in, thats moving idle -, its mostly set really low and sometimes if your running too low timing or too aggressive it wont catch itself and it'll die..
you need to set those values to w/e you have as your target idle.

 

What do you adjust, say when you're in neutral, give it gas to 3-4k rpm then let off and the car dies? Do you adjust the IACV compensation, or raise the warm idle resume?

 

Iacv, ign is usually the coperate of that... raise your ign on the idle side.. bring it to 19 degrees instead of 16, see if that helps.

 

I forgot to ask in the first post, what's everyone's compression they are running with these cams (please state whether your using pro1,2,3's).

 

i have trouble getting mine under 1100, if i have the iacv any less than 60% of if i try to richen it up a bit it hunts and dies!! it only seems happy in the high 15s-16s afr!

i am on eCtune too

and as far as i know my cams are only tuner2s not pro2s! how can i tell them apart?

 

You can try to contact Skunk2 and ask them. Bump for more info and users CR's.

 

pro2's have p2+ etched on the sides.

i'm running 13.0cr on pro2's.

 

is that etched on the end with the slot for the dizzy?

imma do a search now c wat i can find!

 

My car idle just like stock with tiny lopey. And I'm tuned on CROME.

 

i have the pro1s in my boosted b series at 10.1 comp and i can tell u for a fact these cams love boost saw a instant 63hp gain from my stock gsr cams and i am only runin 6lbs huge help and i know i am not all motor but thought id share that about the pro1s

 

Pro2 with 12.8CR..1.1K idle since I run an underdrive pulley to my Alt.I need the voltage.other than that, its not hard to let the Pro cams idle even with its fairly aggresive primaries.

 

Oh yeah, mine idles at 1.3K.

 

on my other beater i have a gsr 98 with pro1s and they gave me& my buddy a headache 2 get 2 run running on stock compresions and pistons my head is built with crower internals and oversized valves skunk2 intake stock throttle body though had 2 crome out and shes still with alittle attitude idling at about 800 maybe if i tell my tuner u guys running at 11oo and it works for u guys every1 says i shoudve just went type r ugggg thnks after the 650 i spent already lol

 

Seriously man, I cannot make out what you are trying to say here.

 

I think he's saying that he was trying to tune Pro series cams with stock compression. LOL

 

if that's what he meant, something is wrong with his tune since Pro1's doesn't have a lopey idle..it just idles like stock even with non-stock CR.