MAF Size, Part #s And WHP Output - Page 6

sr20aaron · 05-24-2009, 10:13 AM

Quote:

SR20DE MAF 91-94 Sentra SER, part # 53J00
50mm 250 WHP-----------Bored 54mm 290 WHP

I have dyno proven 13 more hp than the non bored limit,

Senora · 06-07-2009, 11:54 AM

what about a z33 maf??

Howie da dread · 07-21-2009, 03:36 AM

need help checking my z32 maf, cant get my gtir motor to make power,breaks up on boost, have fuel psi 37 off vacum,please help. have jim wolf ecu which was programed for z32 maf and 444 injectors

dfddfd2 · 11-14-2009, 10:52 PM

In the OP, it says:
SR20DE MAF 91-94 Sentra SER, part # 53J00
50mm 250 WHP-----------Bored 54mm 290 WHP

My question is, does the stock 53J00 MAF max out at 250whp because the output voltage is 5V at 250whp, or because the 50mm opening is at choked flow and will not physically flow more air than 250whp worth?

Edit:
I did some calculations and the flow velocity of air through a 50mm opening of a 2 liter engine at 100% VE and 8000 rpm is ~152mph, which is well below the speed of sound where choked flow occurs.

Dave

dfddfd2 · 12-04-2009, 06:21 PM

So is it the voltage, or the size that limits the HP?

Dave

BRE92SER · 04-11-2010, 07:49 PM

Quote:

Originally Posted by 200sxse-r

well if your using a det ecu (BB or avenir) the s13 sr maf will work and a single cam 240 maf works just fine too..

i know i know, super old thread....

can anyone confirm this? Im just looking for a startup with the avenir ecu at the moment, and have access to a KA24E Maf

burnoutkid · 08-02-2010, 12:44 AM

Does anyone know what MAF this is? Power output and other specs?

Thanks.

NTNnissansentra · 08-13-2010, 01:02 PM

Is the Maf reprogram/flash something i can do myself, I'm an electrician trained in some electronics. I know the how-to is on the tech info somewhere but i need a response soon for a pj. i get the wiring just not the re-flash.

burnoutkid · 11-03-2010, 10:45 AM

Andreas does this apply to all 300zx MAF even the older models 85-89 300zx MAF?

300zx and 300zx TT 90-96, part # 22680-30P00
75mm 500 WHP

Lemniscate · 12-27-2010, 05:00 AM

FYI

U13 Bluebird MAF = Pulsar GTi-R MAF

elbori87 · 04-04-2011, 08:39 PM

Hi miko I just join the forum and everytime I read your name comes up as one of the best in the Sr20 world and if I need I engine to do my swap you are the man to talk to. I'm looking to buy a Sr20ve and I want to get it from someone with a good reputation and I think I found him so please with you get to read this please answer me back with some good news that you have the engine that I WANt I'm willing to do some buissnes with you plus you are a great guy with all the things you do for us the Sr20 livers so please help me get my car ready for the summer . thank you for your time and help