logging Perrin big MAF

[FISHBURGLAR]

Hey everyone. I am no expert and looking at a little insight as im beginning to learn MAF scaling. Last night i just installed a 3in BIG MAF perrin CAI with Perrin silicone hose. I copied manually onto my OFT the perrin supplied scaling. i put in only the g/s in the MAF scaling on rom raider and uploaded the tune. I then began driving around and logged half my morning commute. i gave the ecu about 20 miles before i began to log. i wanted to see if you guys can take a look. looking at the LTFT, and certain spikes on STFT i need to scale my MAF. but i would like opinion and your views. i have OFH, motiv up pipe and front pipe, stock catback, perrin BIG MAF with silicone hose. and running 93 Octane (NYC winterlbend haha) on shivs 93 Octane Latest tune. I am NOT running the specific OFH tune as i want to scale MAF perfect before i switch to that tune in the spring. BTW with stock intake and Perrin silicone my fuel trims were +-7% i have 0 LEAKS, everything is running perfect i have already checked.

sorry for the long post.
http://datazap.me/u/fishburglar/log-...7?log=0&data=1

http://datazap.me/u/fishburglar/log-...1?log=0&data=1

[FISHBURGLAR]

I am Here to learn. sorry if it upsets some of you knowledgable gentlemen.

I was thinking i think i need to increased MAF limit Maximum from 200.00 (g/s) to atleast 320.00 (g/s) as on the table for MAF sensor scaling goes all the way up to 315.860 (g/s) at MAf sensor 5 (v) ...

i havent done it but i think it just makes sense?

[phrosty]

STFT doesn't matter but you do have some rather large LTFTs, so MAF scaling may be beneficial.

[Kodename47]

Originally Posted by FISHBURGLAR

I was thinking i think i need to increased MAF limit Maximum from 200.00 (g/s) to atleast 320.00 (g/s) as on the table for MAF sensor scaling goes all the way up to 315.860 (g/s) at MAf sensor 5 (v) ...

You only need to increase it if you're going above the limit. You won't hit 200g/s on an NA car.

[FISHBURGLAR]

Originally Posted by Kodename47

You only need to increase it if you're going above the limit. You won't hit 200g/s on an NA car.

THank you so much. I want to say i appreciate you dedicating your time and giving input on this board. you sent me the def so i can lower my initial start up. That saved me from having my neighbors kill me.

I will log again and attempt to set on VGI and rescale.

btw i love the sound of this intake! im attempting to learn as much possible with the OFT

[steve99]

+1 on what kodename47 said, the perrin supplied scaling is not the best and you will need to do your own scaling

[FISHBURGLAR]

Originally Posted by steve99

+1 on what kodename47 said, the perrin supplied scaling is not the best and you will need to do your own scaling

Thanks steve. I will begin logging tomorrow. The trims are starting to stabilize a bit more. Than when i posted the data i guess the trims now settled in from the flash. I still have some scaling todo. I will ask many questioms hopefully i get it right soon haha. Thanks for putting info on maf scaling !! Im learning alot !