View Poll Results: Which of these describes how you tuned idle air, and your surging (or lack thereof)?
Set screw, no surging.
9
3.54%
Set screw, have surging.
12
4.72%
Drill mod, no surging.
9
3.54%
Drill mod, have surging.
14
5.51%
PCM tuning, no surging.
109
42.91%
PCM tuning, have surging.
101
39.76%
Voters: 254. You may not vote on this poll
Surging Poll after Cam; please vote if you don't have surging problems too!
11-12-2004, 01:59 PM
#1
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Surging Poll after Cam; please vote if you don't have surging problems too! Please vote based on how you increased airflow and if you have a surging problem at light throttle and low rpms.
11-12-2004, 05:10 PM
#2
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Originally Posted by Another_User
Please vote based on how you increased airflow and if you have a surging problem at light throttle and low rpms.
This is not on your list but when I upgraded my rear end gear from a 3.42 to a 4.10 it made a huge difference in the surging and bucking @ low RPM's. It is barely noticable now compared to when I just tuned it using the stock gearing. I have a T-Rex cam but I would assume this applies to other cams as well but 4.10's where recommended from Thunder Racing on their site. It may be something you might want to look into if you haven't upgraded already.
11-12-2004, 06:17 PM
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What if you open the tb blade to get iacs down, but you still have surging? My main question is on the fuel side of it. Is the surging/bucking an indication of too rich or too lean? What if you get the ltfts at -3 to 0 via ve table and still have surging?
11-12-2004, 07:13 PM
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Originally Posted by luv2spd
What if you open the tb blade to get iacs down, but you still have surging? My main question is on the fuel side of it. Is the surging/bucking an indication of too rich or too lean? What if you get the ltfts at -3 to 0 via ve table and still have surging?
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08-25-2005, 12:02 AM
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Originally Posted by RedHardSupra
idle screw, reset tps sensor, perfect VE, perfect RAF, no surging on strokers with 240+ duration cams
:jk:f10 114, i think janzter did the drill mod on the TB blade, set screw adjusted and tuning and still surging....stock cam goes back in this weekend
08-25-2005, 09:33 AM
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Originally Posted by RedHardSupra
idle screw, reset tps sensor, perfect VE, perfect RAF, no surging on strokers with 240+ duration cams
08-25-2005, 10:53 AM
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Timing is your friend right here and any driving conditions. People still dont get how much timing they can put back into their PCM table after a cam change. Its all about making a T-rex drive like a 220 cam. 
08-25-2005, 11:19 AM
#17
Originally Posted by Rick@Synergy
Timing is your friend right here and any driving conditions. People still dont get how much timing they can put back into their PCM table after a cam change. Its all about making a T-rex drive like a 220 cam.
08-25-2005, 11:29 AM
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Originally Posted by WS6FirebirdTA00
you can add timing if you are rich at idle, but if you lean it out like it should be you can run low amounts of timing. how much timing do you run at idle?
What are your cam specs.?
Rick
08-25-2005, 01:58 PM
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Originally Posted by WS6FirebirdTA00
230/232 and i use the same technique on a 237/242 to get its idle good, unless going so much higher will make it better, but i just think it would cause some knock on takeoff and when reving
Rick