Has anyone ran into the problem of maxing out your maf table? Not the frequency but the max g/sec in the horizontal chart. It has a max of 4,XXX something and im right at that at around 10,000 Hz. I am using a mini afc at 70%.
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09-13-2019
Has anyone ran into the problem of maxing out your maf table? Not the frequency but the max g/sec in the horizontal chart. It has a max of 4,XXX something and im right at that at around 10,000 Hz. I am using a mini afc at 70%.
09-13-2019
In HP Tuners?
Some values in HPT do just stop so using Hz or dynamic airflow is used.
09-14-2019
image — imgbb.com in the pic you can see the max is 4,063 lb/hr I am just about there at 3,824 and my buddy’s car is maxed out at 4.063 from 10,000 on up. I’m not sure what you mean.
09-14-2019
Without the picture it seemed like you are talking about the scanner function at first. My response was about certain parameters in the scanner that have a max value they will report.
If you are reaching the max of the actual airflow in the MAF table you need to change to a different MAF sensor to gain back resolution. The MAF you pick needs to have a larger diameter housing so it can keep you within the limits of the MAF table.
I don't know the sizes off hand that well but say you are using a 78mm MAF housing, going to a 85mm MAF housing would be the way to go. I can't remember if the LS1 or LT1 MAF's are the ones larger than the truck MAF.
09-14-2019
I thought the frequency was directly related with the lb/hr measurement. So my buddies car that is E-85 has way less are flow than my turbo setup as im using a afc controller at 70% and around the same frequency as him wot. His is completely maxed out at 4,063 lb/hr passed 10,00 hz. We are both using an LQ4 MAF. Is there any other walk around besides a new maf? which I believe would be the ls7 one.
10-01-2019
A bigger maf isn't really the best answer, especially with the issues people have with the ls7's.
Scale back both the maf table and the ifr table the same amount. (90% or something). This will get you away from the hard limit.
10-03-2019
Scale these just in the tune themselves correct?
10-03-2019
Yes
03-30-2021
!!!RESURRECTION FROM THE DEAD!!!
Im in the same boat here. Remote tuning "Hellboi" and maxed the flow rate of the MAF table. Will be scaling soon. I will this forum would get more action. We need more info.
)
03-30-2021
yeah you have to lie to the pcm, alot in some cases.
the TR runs 127lbhr injectors, however the IFR table is that of 60's, and thankfully we have a vintage range scalable AFC with 10khz and up at 50% tapering down to 80% at 4k and down.
bee carefull when double checking yourself that you keep in mind that your only telling it about half the air...and half the fuel (or 2/3rds/3/4 etc wherever your range is needed, try not to shoot for too much headroom.leaving 50-75 gps (dhp) headroom is fine but much more than that and your killing resolution.
what now nearly 4 years ago when we shredded the TR's 11th trans....we hit 27psi before he spun the tires at 106 mph and the inj on time/maf and rpm said we were making about 500hp....which threw me for a loop....till i remembered that i needed to multiply it by 2
i dont know if we did or not....but we may have made close to 1000 at the crank before we shredded the ISS reluctor wheel with the slip n grip at 105
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