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OBD1 LT1 PCM Tunes

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12K views 11 replies 7 participants last post by  OGCocky  
#1 · (Edited)
$170.00

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For $170 - paypal, or USPS Money Order - once I have your OBD1 LT1 PCM, I'll tune it for you.

Your tune will include:
disabling the EGR Valve, if you like
disabling the PCM's VATS fuel cut, if you like
disabling the Charcoal Canister Vapor Purge, if you like
raising WOT Down- & Up-Shift, RedLine, Fuel CutOff, & Top Speed limitations
improving radiator fan performance and consistency, for less powertrain wear & tear
improving air fuel and spark protocols, for crisper throttle response and engine performance
improving transmission response and longevity by delaying early upshifts and encouraging downshifts
improving transmission reliability and durability with higher clutch line pressures and quicker shift protocols
deactivating the torque converter clutch's PulseWidth Modulation so it engages more quickly and lasts longer
reactivating dormant overheat mitigation protocols to delay or lower the odds of warped heads if coolant flow is compromised

the disabling of ANY emissions device is for OFF-Road Vehicles ONLY!

Start a Conversation with me if you have any questions about getting tuned.
 
#8 · (Edited)
Moderator Comment: For clarification, Marky worked very hard behind the scenes to follow the process but there's an issue on VerticalScope's end, so I granted him permission to post here. @jayoldschool is continuing to work the issue, but for now, Marky has my approval to move forward on posting.

Edit - Marky and I have had MANY discussions on tuning. If you are looking for a solid tune for your mild LT1, he's a source I would trust.
 
#10 ·
I drive 94-96 LT1's for over 20 years now and never had the PCM flashed before since I didn't read enough about it and was not too interested in messing with the computer.
Looked for some PCM problem thread and stumbled across Marky's thread here.
What I read made me interested to gather more info about a Flash so I contacted Marky.
He took his time and explained me everything through the phone and offered me a few options what I should expect after a Flash.
Day after I took my PCM out of my 94 RMS to sent it to Marky to give it a try...
...and what can I say, I really regret not having this done years ago. o_O
The performance of the car feels so much better with those adjusted shifting points and it runs like a bat out of hell!
Today I took out the pcm of my 94FWB and sent it off to Marky. :p
That's what I call Bang for the Buck!
Thanks again Marky and really looking forward getting my FW pcm delivered! (y)
Cheers! Piot
 
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