Mustang_NTriangle

Please take a look at my dyno graph particularity at my fuel/air curve. I am pegging my 90 LMAF sensor and believe the this dyno jet is underating my power level since shop was having problem with its pads on the roller with drag.

I am thinking I have about 450 rwhp and not the 415 stated which would explain why I am pegging my 90 LMAF. My tuner said car is good to drive and have fun with but that would like to put a PMAS meter and retune it to make more power stop the meter from pegging but tune was safe.

I got 2,000 miles on my brand new motor and just wanted second opinion as to the current tune as I am paranoid. I am definitely going to get a new meter and re-tune once meter is available.

I have 60 lb injectors, 90 LMAF, 1 focus 255lb fuel pump, KB Boost Pump, 12.5 boost (3.12" pulley) with CMS 2.5 blower cams, stock heads and no headers.

Smokin04

Shouldn't be peggin a MAF at that power level. You gave your fuel setup, but what's your engine setup? What kind of blower? Who's your tuner?

Mustang_NTriangle

Like I said I believe I am around 450-460 rwhp and since I crushed by buddies 2006 vette from a roll 50-115 by a bus length or more which would not happen if I only had 415 rwhp vs. a 340 rwhp vette. I have a fully built forged MMR800 short block, with 9.5 to 1 compression, Cobra 8 bolt crank and Cobra flywheel, V2SQ Vortech Blower, Vortech aftercooler, CMS 2.5 blower cams, with stock heads, updated springs and keepers, MRT Catted H-pipe, BB 75 MM intake and upper plentum, MMR 9 quart oil pan.

HaneyMotorsport.Com

Did the tuner say the maf is pegged? It is hard tell by the graph (small pic), but I don't see the afr climbing lean towards the mid or end of the run. It can use some adjusting between 4200-6000 to smooth it out.

Also, what is load reading?

Casey

Hangwire

Based on these mods I'll be a monkey's ****ing uncle if you aren't making at least 460 to the wheels. If you don't end up making that, no offense but ditch your tuner I can give you a better tune with my original gameboy.

Mustang_NTriangle

yes he did stay it is pegging because it is reach 5 volts. I have no idea the load reading.

1999mustang2000

ditch the tuner...where are you located?

vanquish

It makes sense that the MAF sensor you're using is not enough. I'd get a sniper bazooka or sct ba3000 and get it retuned.

WhiteFoxGT

Or you could try to run a MAFia in line with you LMAF.. Thats what I have on my Lightning and Im making a safe 450whp

Mustang3GT07

+1 for another mafia user! My numbers are in my sig, using stock MAF with the Mafia.