Will the Miniram RUN w/ the stock PROM?

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Feb 4, 2002 | 08:09 PM
  #1  
Just wondering. Will my crate motor even run w/ this intake? Do I have to buy PROM burning equipment as soon as I buy the intake? Will it fit my "corvette style" heads? Thanks in advance.
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Feb 4, 2002 | 09:20 PM
  #2  
Sure it will run, but not to the best of it's ability. If you've already got a chip set up for the zz4 you might even be able to drive it for quite a while, you'll need the chip to take advantage of the extra air flow potential though.
John
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Feb 5, 2002 | 09:22 AM
  #3  
As mentioned above, it will most likely "run" but it will be FAR from optimal, especially with SD.

The stock SD VE tables will be a complete mis-match for the Miniram. There is a strong correlation between the VE Table "fuel curve" and the TQ curve of the engine.

With the stock eprom (in PE/WOT), you will be overly rich from 2,500-3,600 rpm and then lean over 3,600 rpm.
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Feb 5, 2002 | 01:04 PM
  #4  
That's exactly what I'm experiencing with my LT4 intake. At idle you can smell the gas from a mile away so it's running way too rich. Since I havn't gotten a scantool yet I havn't been able to check it but of course it's running way too lean in the upper rpms. I'll be buying a scantool, the prom burning equipment and software very soon (along with bigger injectors). I already downloaded the TunerCat trial software but can't do a single thing with it. I guess it's not a free trial since you have to spend $20 to get a definition file. "Supposedly" it is supposed to come with one for a TBI truck but that is not true. I'll be buying the $8D definition file in the next couplp days so I can at least mess around with the software and try to get a head start on learning it. Glenn, your help will be needed in a short while I'm sure.
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Feb 5, 2002 | 01:40 PM
  #5  
Another thing to keep in mind is the dreaded MiniRam backfire through the intake problem that a lot of us experienced. This is easily fixed by increasing the pump shot in the PROM. So - if you get an off-idle backfire through the intake (or even an off idle stumble) then you'll know what the problem is.

Tim
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