there a limit in Hz for 1g mas?

[CarPsyco84]

I was just wondering cause I hear alot of talk about them skipping counts and other funny stuff at high air flow... Im seeing about 2100Hz on my car, should I be worried?

[Spyderturbo007]

Based on the DSMLink logs I've seen, it's a pretty gray area when dealing with the 1g MAS. Most people run into problems above 1600Hz, but some are able to hit 2000Hz on a 1g MAS with no problems. You really have to take a look at the logs to see where yours starts to overrun. I would suggest going with a 2g MAS which will allow you to push upwards of 2800Hz before you start overrunning the sensor.

Just make sure you have some type of tuning device to compensate for the additional airflow that bypasses the 2g sensor.

[Goat Blower]

I would suggest going with a 2g MAS which will allow you to push upwards of 2800Hz before you start overrunning the sensor.

2G mas goes a lot higher than that. :sasmokin:

[Spyderturbo007]

I'm going to have to disagree with you on that one. Technically, the 2g MAS should overrun at it's 2400Hz clamp point, but empirical data over on the DSMLink forums shows the 2g MAS overrunning around 2800Hz. Hack the MAF and you should be able to get another 10% out of it before it starts overrunning.

[Goat Blower]

We had to remove a couple of honeycombs and retune for it, but we've got logs showing 4000hz on my 2g MAS, that's the highest Link will log apparently. Yeah, we've got fake MAF checked and I don't remember exactly where it was going funky, but it was a lot higher than 2800hz.

[Shane@DBPerformance]

I have seen totally stock unhacked 2G MASes not start hitting overrun or going flaky until around 3700hz. Both me and Steve run hacked 2G MAs setups.

The stock 1G MAS maxes out very early though. I don't remember exactly when, it's been a long time since I tuned or run an unhacked 1G MAS. For some reason though, I thought it was around 1900-2000hz, but I could be wrong.

[Shane@DBPerformance]

Steve, I don't think fake MAF is being used on yours. Once we hacked it, it worked fine on it's own.

[123abc]

Does the factory 1g ecu only read up to 1600hz? Thats the highest mines ever been at. I get fuel cut from that pile of shit too.

[Spyderturbo007]

No, the sensor counts higher than that, but you'll only see a max of 1606Hz on the logger.

I don't know your mod list, but most people run into fuel cut when they have a boost leak.

[dsm9sec]

No, the sensor counts higher than that, but you'll only see a max of 1606Hz on the logger.

I don't know your mod list, but most people run into fuel cut when they have a boost leak.

Why is that?