SD vs MAF
SD vs MAF I have a 97 camaro lt1 with a v7 ysi. My question is if I'm going to dd my car what would perform better, a speed density tune or a maf tune? I want to be able to drive the car anywhere without any issues.
All that is needed for a SD tune is either a 2 bar of 3 bar map depending on what OS you want to put in th PCM.
I am currently running a 2 bar map and have a 2 bar OS from HPtunners in the car. I will be switching to a 3 bar Map and 3 bar OS over the winter
I am currently running a 2 bar map and have a 2 bar OS from HPtunners in the car. I will be switching to a 3 bar Map and 3 bar OS over the winter
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I run SD as well. I have no issues besides warmup. It starts looking for a MAF and runs like crap the 1st 5-10 seconds of startup than finds idle.
Other than that I am more than happy with it.
Other than that I am more than happy with it.
SD is fantastic. It's all in the ability of the tuner to get it correct. With a maf you either have a huge restriction, or buy a $$$ maf. With SD you can have 4" all the way. Only restrictions in my intake setup is the IAT sensor, and a n2o nozzle
0 PSI of boost would be roughly 1 bar. 14 PSI, 2 bar. 28 psi, 3 bar.
At least that's the way I understand it. I'm not sure if there's a 2.5bar OS but you're probably better off starting with the 3 bar.
If you have a 98 ECM like me, you're stuck with the 2 bar OS (at least through HP).
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Joined: Jul 2010
Posts: 33
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From: Fairfild , ohio
A bar of pressure is roughly 14 PSI (atmosphere at sea level).
0 PSI of boost would be roughly 1 bar. 14 PSI, 2 bar. 28 psi, 3 bar.
At least that's the way I understand it. I'm not sure if there's a 2.5bar OS but you're probably better off starting with the 3 bar.
If you have a 98 ECM like me, you're stuck with the 2 bar OS (at least through HP).
0 PSI of boost would be roughly 1 bar. 14 PSI, 2 bar. 28 psi, 3 bar.
At least that's the way I understand it. I'm not sure if there's a 2.5bar OS but you're probably better off starting with the 3 bar.
If you have a 98 ECM like me, you're stuck with the 2 bar OS (at least through HP).
btw, you can get a 2 bar to fit in the factory spot, the 3 bar sensors do not. You just run a vac line to the sensor and zip tie it somewhere
Im on a 3 bar SD tue and still get 20+ mpg
Im on a 3 bar SD tue and still get 20+ mpg