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Old 03-17-2013, 02:25 PM
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Help TVS tuning
I was wondering I'd someone could shed some light, car is on the dyno and hptuners is open, at 6k rpm the car leans out and falls on its ass, guy tuning says the maf sensor isn't reading past 10k htz but it goes up to 11,100k htz
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Old 03-17-2013, 02:37 PM
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Should have posted this in the tuning section. Maybe area can chime in on this for you. Get am mod to move it. Thanks
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Old 03-17-2013, 02:57 PM
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What pulley, fuel and injectors
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Old 03-17-2013, 03:06 PM
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Originally Posted by 574
What pulley, fuel and injectors
Ok, hopefully mod will move it, and zzp's 80lbs injectors 2.6 pulley
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Old 03-17-2013, 03:19 PM
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On dino fuel?
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Old 03-17-2013, 03:59 PM
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No premium n it's only making 270hp and 240 trq
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Old 03-17-2013, 05:03 PM
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What brand dyno?
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Old 03-17-2013, 05:16 PM
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Dyno Jet if I'm not mistaken, we got the MAF issue figured out and it runs smoothly I'm just disappointed with the power.
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Old 03-17-2013, 05:20 PM
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What was wrong with the maf
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Old 03-17-2013, 05:21 PM
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Wat r u iat2 temps
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Old 03-17-2013, 05:22 PM
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It wasn't reading properly so after 6k it would rich out and drop hp almost to 100hp but he figured it out, it was something in the tune.

IATs post charger are 131 and are pretty constant
Last edited by Mendomar06; 03-17-2013 at 05:22 PM. Reason: Automerged Doublepost
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Old 03-17-2013, 08:13 PM
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Are you pushing enough timing?
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Old 03-17-2013, 08:21 PM
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Well in diag he can up the hertz to be maxed around 16k. Now if the car leans out and he's going based off afr error add fuel. It is honestly not difficult but in wot your feeling is based off your prest calculated fueling so if it goes lean then he needs to up the calibrations.
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Old 03-17-2013, 08:33 PM
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270 is good for 93 gas only, if u want more gonna need meth or e85.
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Old 03-17-2013, 08:35 PM
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or raise the pulley up
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Old 03-17-2013, 08:37 PM
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just under 289 and 260 tq on mine......that was with stock exhaust and no cooling mods.....it opened up a LOT more after the 3" exhaust and some cooling mods.

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Old 03-17-2013, 08:44 PM
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Something is off, I have ZZP Long Tube Headers and DP, Option B, Dual Pass, Secondary HE, 80# Injectors, 2.6 Pulley, 3" intake so what am I missing other than maybe an LS4 TB
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Old 03-17-2013, 08:45 PM
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oh, an that was one a 2.9" pulley
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Old 03-17-2013, 09:00 PM
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Originally Posted by Mendomar06
Something is off, I have ZZP Long Tube Headers and DP, Option B, Dual Pass, Secondary HE, 80# Injectors, 2.6 Pulley, 3" intake so what am I missing other than maybe an LS4 TB
I think you may be missing a good tuner
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Old 03-17-2013, 09:24 PM
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Old 03-17-2013, 09:39 PM
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what plug and gap are you running?
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Old 03-17-2013, 09:40 PM
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Stage 2 colder plugs ngks gapped at .30
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Old 03-17-2013, 09:47 PM
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it's hard to say without seeing a datalog and the tune......but it's possible it could be spark blow out....maybe try tightening up the gap just a little more.
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Old 03-17-2013, 09:59 PM
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Do I need to upgrade my MAF sensor?
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Old 03-17-2013, 10:02 PM
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doubt it......but it is hard to say what is going on without seeing some data
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