Originally posted by robertisaar
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northstar v8
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sigpicHow to make High performance Emissions:
A "true" High flow converter, straight pipe.
Low/No flow EGR valve, block off plate.
Carbon canister and purge valve mod, place in large 30 Gallon can, cover, and place curbside, the city will do the rest.
PCV valve and vent tube, reroute to exhaust to dump where it belongs, on the ground. Or add breathers and let it all free.
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to ratrod it, you could use a PCM/MEMCAL from a 95 aurora with the same FDR to control the trans and another ECM/PCM to control the motor. not sure how well the N* PCM would like that though, since it likes to chat with other modules on the dataline, especially the instrument panel and traction control module... i've been working on hacking through it, but damn... dual 64KB BINs take a lot of effort and time.
i actually made my nAst1 patch for the $A1 mask specifically with the northstar motors in mind(VE and spark tables that run up to 8400 RPM).
however, maximum cheap, yet still very reliable/tuneable: use a 1227727/1227730 to control the motor on the A1 mask, and whatever the hot PCM is from the 94-95 4L60E and 4L80E trucks(ask around on thirdgen.org, they love that thing). you would need to work out the base trans control maps(you may be able to find the info, if you look in the right places), but it would give more control than anyone would need.
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