Quote:
Originally Posted by turbo2086
I do not have an eprom. I know that 650's with just an SAFC makes it difficult to tune. Because you subtract so much fuel, and the ECU goes to the map for that amount of airflow, and your timing becomes way off from where you want it to be.
So I read that for the 1g guys upgrading to the 2g maf makes it pretty much a bolt on for 550's. I think -24 for 550s +22 for 2g maf. Something like that. So I was thinking... Going with 650's on a 2g maf would be like tuning for 550's on 1g maf. It would be easier. Get what I'm saying? Am I thinking correct? Has anybody done this setup before? If so, good results?
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The 550's NEARLY balance out for a 2g mas swap. We have discussed this before on this forum...try digging around a bit.
The 650's work okay on a S-afc..I would recommend to just take it somewhere to get tuned. I charge $150 to setup S-afc's and tune them for high/low.