Cam Tuning Questions
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From: Chicago
Originally Posted by bennettrp
HA! Bring it over and we can have some fun with it. You're just down the street.
Dick
Dick
hahah ya serious??? Have you obviosly tuned your own car??
How far is Geneva from Lombard???
If you really intrested let me know??
EDIT: You are 18 miles from me.....
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From: Chicago
Originally Posted by PunkNPonys
I am dealing with the same problem of bucking but i am contributing it to gears. I have a M6 with 3.23s. I know i need gears badly. That is why most companies recommend using 4.10s with these size cams. And yes there probably can be a little better tuning done to your car its just finding a really good tuner who can do it. And with those things problem should be solved. Goodluck
All M6 cars came with a 3.42... but yes i think gears should help out a bit...
Originally Posted by TORCHD 02 TA
All M6 cars came with a 3.42... but yes i think gears should help out a bit...
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From: Chicago
Originally Posted by PunkNPonys
My car was an auto. The guy that had it before me did a tranny swap in it. But he never got around to changing the gears. So i am stuck with 3.23s for now but i will be ordering 4.10s soon.
ahh my bad.. sorry..
I have the same cam except mine was a +2. I've gotten rid of most of the bucking/surging by upping the timing and fuel and playing with the throttle follower. Patrick G suggested working on the follower and it definitely helped. There is just a hint of surging, that might always be there or can be further tuned out... I don't know.
FWIW, I have my idle at 850 going down to 800 when fully warmed up. No problems.
FWIW, I have my idle at 850 going down to 800 when fully warmed up. No problems.
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Originally Posted by Rob
I have the same cam except mine was a +2. I've gotten rid of most of the bucking/surging by upping the timing and fuel and playing with the throttle follower. Patrick G suggested working on the follower and it definitely helped. There is just a hint of surging, that might always be there or can be further tuned out... I don't know.
FWIW, I have my idle at 850 going down to 800 when fully warmed up. No problems.
FWIW, I have my idle at 850 going down to 800 when fully warmed up. No problems.
i had 28* of timing had a lot bucking backed it down to abou 20*i beleive... What gear are you running as well?
And i really want my idle at 850. at 950 you can not hear the lope of the cam all that well
Originally Posted by TORCHD 02 TA
i had 28* of timing had a lot bucking backed it down to abou 20*i beleive... What gear are you running as well?
And i really want my idle at 850. at 950 you can not hear the lope of the cam all that well
And i really want my idle at 850. at 950 you can not hear the lope of the cam all that well
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The problem is, saying he went down to 20* from 28* means nothing. The timing MAP has a lot of resolution to it, so saying he reduced it means nothing unless he can tell you where he did it (low air flow, high air flow, low RPM, high RPM).
Timing at low airflow on my car is way above 28*...at high airflow, it goes down to about 26* max, but I've shaped the curve to my liking. What he's dealing with is a 3D map. You'd definitely need more information before you would be able to figure anything out.
Timing at low airflow on my car is way above 28*...at high airflow, it goes down to about 26* max, but I've shaped the curve to my liking. What he's dealing with is a 3D map. You'd definitely need more information before you would be able to figure anything out.
Originally Posted by MeentSS02
The problem is, saying he went down to 20* from 28* means nothing. The timing MAP has a lot of resolution to it, so saying he reduced it means nothing unless he can tell you where he did it (low air flow, high air flow, low RPM, high RPM).
Timing at low airflow on my car is way above 28*...at high airflow, it goes down to about 26* max, but I've shaped the curve to my liking. What he's dealing with is a 3D map. You'd definitely need more information before you would be able to figure anything out.
Timing at low airflow on my car is way above 28*...at high airflow, it goes down to about 26* max, but I've shaped the curve to my liking. What he's dealing with is a 3D map. You'd definitely need more information before you would be able to figure anything out.
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Originally Posted by brad8266
Well yeah i was assuming he meant in the idle/low rpm ranges where he is having the issues.
yes that is correct... i am gonna try to get my file and see if i can work on it
Originally Posted by TORCHD 02 TA
i had 28* of timing had a lot bucking backed it down to abou 20*i beleive... What gear are you running as well?
And i really want my idle at 850. at 950 you can not hear the lope of the cam all that well
And i really want my idle at 850. at 950 you can not hear the lope of the cam all that well
28* where?
I didn't mention this before now, but I don't know how kindly your tuner will take to (or even should...) you telling him to "try this, somebody on the innernetz said to"... Personally I feel if you want to be this involved with tuning, you need to purchase a tuning package. There is something about telling a person how to do his job.... catching what I'm saying?
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In the first post i added the graphs.. and i will put them here too
Lost my original pull that gave me my numbers...
FIRST PULL WITH CAM
I FORGOT WHAT THIS GRAPH SHOW
NICE A:F
CORRECTED NUMBERS
Lost my original pull that gave me my numbers...
FIRST PULL WITH CAM I FORGOT WHAT THIS GRAPH SHOW NICE A:F CORRECTED NUMBERS 
Here's mine at 800rpm. 231/237 112. It's definately possible.
http://smg.photobucket.com/albums/v6...231237idle.flv
http://smg.photobucket.com/albums/v6...231237idle.flv
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From: Chicago
Originally Posted by Violatorno1
Here's mine at 800rpm. 231/237 112. It's definately possible.
http://smg.photobucket.com/albums/v6...231237idle.flv
http://smg.photobucket.com/albums/v6...231237idle.flv
nice i would love to get an 800 RPM idle.. that is in the works
Originally Posted by Violatorno1
Here's mine at 800rpm. 231/237 112. It's definately possible.
http://smg.photobucket.com/albums/v6...231237idle.flv
http://smg.photobucket.com/albums/v6...231237idle.flv