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I really want your SDS EFI fuel maps!

posted by  someone claiming to be kf4rtg@aol.com on  Tue Feb 21 19:32 CST 2012 [RELATED]

Hey list! If any of you are using/have used SDS EFI (EM4-4F) on a B20, I'd love to see your settings!

I have a Volvo 144 and my engine is a "Phil Singher special" with 93mm pistons, the usual head work and an aftermarket cam that I think I remember had a bit more duration than a D grind. I will be using the stock injectors which I think are 36lb

BLUF: My car is at a performance shop, and has been there way too long. I'm looking for settings I can provide as a good starting point to speed up the process because the mechanic, who claims he has done this exact system before on a newer car, seems to be struggling for one reason or another.

First he was concerned with the wiring harness and wanted to replace a couple of connectors and resolder a few things. That's understandable. The system came to me used. Then he had some difficulty with the hall sensor (just didn't understand that nothing else would work if he didn't align it FIRST.. he was looking for injector pulses and spark before he gave the computer a way to tell the engine was turning) He spent a good bit of time today trying to get the engine to idle right before he pulled the injectors and saw that all 4 of them were squirting more like squirt guns than injectors. He is taking them first thing tomorrow to a friend who has an injector bench.

I don't think he is an idiot, but I am becoming impatient. This was supposed to be a 2 day project and today was the 5th day.






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