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Cam install, tuning question (HPTuners)

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Old Apr 18, 2005 | 08:04 AM
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Default Cam install, tuning question (HPTuners)

Cam Install, Tuning Question

I’m installing a FMS 232/234 598/598 112 cam in my 2001 Trans AM. I upgraded the valve train to dual-springs, hardened pushrods, titanium retainers, etc. Few questions that I have:
1. After I have installed the cam, do I drill the TB to maintain an idle or do I tune the PCM to try and keep it going?
2. Do I drive the car around to try and get it to learn some new settings, or are there things that I can change via HP Tuners right away

Those are my two basic questions. The cam should be here next week, so I’m doing a lot of reading on Tuning etc. Does anyone have any advice or things I should change via HP Tuners (or even a pre-made .bin that would help. Any help/suggestions appreciated
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Old Apr 18, 2005 | 08:14 AM
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Originally Posted by NVE THIS
Cam Install, Tuning Question

I’m installing a FMS 232/234 598/598 112 cam in my 2001 Trans AM. I upgraded the valve train to dual-springs, hardened pushrods, titanium retainers, etc. Few questions that I have:
1. After I have installed the cam, do I drill the TB to maintain an idle or do I tune the PCM to try and keep it going?
2. Do I drive the car around to try and get it to learn some new settings, or are there things that I can change via HP Tuners right away

Those are my two basic questions. The cam should be here next week, so I’m doing a lot of reading on Tuning etc. Does anyone have any advice or things I should change via HP Tuners (or even a pre-made .bin that would help. Any help/suggestions appreciated
you dont "have" to drill the TB you can use the throttle set screw to open the blade just a little to get more air into the car. After that tuning will take car of hot starts and running rich at idle.

There are things you need to change via HPT right away. for starters multiply the 400-800-1200 colums in the ve table by 60-70-80 this will lean it out at idle and help with hot starts and stalling when comming to stops.
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Old Apr 18, 2005 | 02:13 PM
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Good stuff!

I just fired off my modified (cam/heads) LS1 and was having trouble with NO idle. Hooked a Tech II on and could not even get control via the IAC.

I opene the t/b a tad with the set screw. WOW! It let in more air and I am now able to idle enough to try to start driving it for a relearn.

I was told to drill a hole next if the opening adjustment didnt' work.
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Old Apr 19, 2005 | 08:41 AM
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Originally Posted by HumpinSS
you dont "have" to drill the TB you can use the throttle set screw to open the blade just a little to get more air into the car. After that tuning will take car of hot starts and running rich at idle.

There are things you need to change via HPT right away. for starters multiply the 400-800-1200 colums in the ve table by 60-70-80 this will lean it out at idle and help with hot starts and stalling when comming to stops.
So after I have the cam installed I need to do what is mentioned above right away. After I change the above mentioned settings, should I start driving the car around and trying to tune it? I plan on keeping the MAF and not running SD mode all the time, mostly because of changing weather conditions. Thanks.
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Old Apr 19, 2005 | 09:57 AM
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Originally Posted by NVE THIS
So after I have the cam installed I need to do what is mentioned above right away. After I change the above mentioned settings, should I start driving the car around and trying to tune it? I plan on keeping the MAF and not running SD mode all the time, mostly because of changing weather conditions. Thanks.
for a cam like that the ve adj., raise idle to 900-950, and use black02ss's excel spread sheet to figure out your raf table should do the trick.
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