C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Pcm Tune

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Old Oct 31, 2007 | 02:46 PM
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Default Pcm Tune

Can people respond with experience they have had with PCMFORLESS tune and how it affected their smog readings. Is this the way to go.
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Old Oct 31, 2007 | 05:51 PM
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I got a PCMforless tune on my LT1 - see sig for mods. Easily passed emissions testing in Massachusetts.
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Old Oct 31, 2007 | 06:08 PM
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I got one on my Hotcammed LT4 - see sig

I've passed twice already w/ no problems.
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Old Oct 31, 2007 | 06:37 PM
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Why not use the search function and see all the good reviews on PCM... I'd have no-one else do mine...
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Old Nov 13, 2007 | 12:39 PM
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This is good to hear, i just ordered up a custom PCM from pcmforless for my car, will be installing the 355 lt4 hotcam combo next week. Also living in MA it is critical that this car passes emissions.. This almost feels like xmas morning !

Last edited by Soon2Bcammed; Nov 13, 2007 at 12:43 PM.
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Old Nov 13, 2007 | 03:28 PM
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cud be a fluck but at a dyno day this weekend a 96 collector ed was way f'd up wit the pcm tune. it was running so lean i was waiting for it to go boom. it was 14.7+ all the way to redline where it was 15.5 or higher. not to mention it was locked so they couldn't do anything to it. first i have seen of bad tune from them but yikes this one was!!
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Old Nov 13, 2007 | 04:08 PM
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well every tune (3) that i have gotten from pcmforless has been rich at idle. two on the same car and one on another. i thought it might have been my plug wires but from day one since tuned in my vette it has a stumble while cruising in 1500-2500 in just about every gear. that is with two different cams and 3 sets of plug wires. that makes for an annoying ride with 4.10 gears. madz28 hit it a little closer on my trans am but i can't really give him that much credit cause it was a hot cam and bolt ons in an lt1 so it was a pretty common tune by the time i had it done.
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Old Nov 13, 2007 | 04:38 PM
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Originally Posted by excessive81
cud be a fluck but at a dyno day this weekend a 96 collector ed was way f'd up wit the pcm tune. it was running so lean i was waiting for it to go boom. it was 14.7+ all the way to redline where it was 15.5 or higher. not to mention it was locked so they couldn't do anything to it. first i have seen of bad tune from them but yikes this one was!!


Are you sure the car was tuned by pcmforless? I didnt think they locked their tunes. There is one other mail order tuner that does lock his tunes, but Im not going to call his name pubicly.

But FWIW I have one of their tunes (www.pcmforless.com) on my first car and it runs great and passes emissions. See signature
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Old Nov 13, 2007 | 06:59 PM
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Originally Posted by 93 ragtop
Are you sure the car was tuned by pcmforless? I didnt think they locked their tunes. There is one other mail order tuner that does lock his tunes, but Im not going to call his name pubicly.

But FWIW I have one of their tunes (www.pcmforless.com) on my first car and it runs great and passes emissions. See signature
I didn't think anyone locked tunes up anymore. I can tell you if I wanted your tune bad enough I can get it out of the PCM. Man made and man can fix it. Just look at how much Bill Gates spends on security with software validation efforts, even he with all his resources can't keep the hacks from hacking their software with bogus keys.
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