VMP Tuning and DepWraith's '13
- Thread starter DepWraith
- Start date
I'm not sure why you continue to argue the subject when he clearly made the power with the stock maf. I'm sure if there were any problems he would've said not to mention Justin was tuning and would've definitely commented on it( well he did a couple post up from this one). Anyway great numbers op! 700 with a full exhaust I'd think. That's another 1500-2000 for a nice setup but in all about 3k and you have a 700+ rwhp/tq monster, that's just insane!
Dyno sheet added to original post.
I'm still waiting for an explanation from Justin in that other thread on what he means by "renormalized". Is he saying Ford changed the sensor in the 13' from the 2012 sensor? If so we all would like to know because up to now Ford said it has not been changed.
Is he saying he can change the sensor calibrations himself?:shrug:
http://www.svtperformance.com/forums/2013-shelby-gt500-413/856345-vmp-pulley-now-available-2.html
op:
blackshelby
New Member
Not doubting the power(power is insane) just wondering if the MAF is pegged.
That's not arguing its a question................
If its the same CAI/sensor combo as in 11 and 12 (if is the big question here) it would be pegged at that power level which would warrant a larger CAI to be safe.
Ford up to this point has said it is the same
Ford 750 kit for the 11 and 12 uses a 123 MAF because the stock cai unit is out of range, that kit puts about 650 to the rear wheels.
This car has wide band o2's which do work at WOT, which could be a factor why fuel is still added.
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Thanks, very nice graph! What's the difference between run 2 & 3, just additional tuning or where some of your parts added at that point? Congrats on the ride it must feel like a beast. Time for some DR's.
So where are the AF #'s? The bottom part of the Dyno sheet is showing boost correct?
Which CobreJet TB? Is it the single blade or dual 65mm version?
Dual, part #m-9926-cj65
Correct on boost. I don't have the AF #'s.
Additional tuning, playing with filters.
Great numbers DW, Mad TQ... Watching the video the Blower is screaming.. Resonator Delete= First Mod... 2.4 stock look pulley??? Those numbers with a stock exhaust on a 93 Octane Tune, right...
Outstanding!!!
Outstanding!!!
blackshelby
New Member
I did go through the 13 software today and looked at the MAF tranfer fuction curve and it does look like they did change the sensor in the 13 cai .(at least looking in the sotware I got that impression) have to verify part #"s next for the sensor
So its the same housing as 10,11 and 12 but looks like it uses a new/different sensor.
The 13 looks like it will go to about 750rwhp before it is pegged compared to the 11 and 12 that would only go to about 620-640 before being pegged.
Update
I verified the part #'s for the 13 sensor and the 12 are indeed the same.
I am wondering if SCT has an error in the new software.
I need to dig somemore ,something is not right. I am leaning towards the software.
I also called a friend over at Ford Racing today and he did say he was almost postive the 13 cai would be maxed out the same as the 12 (he said he does believe everything is the same)
So its the same housing as 10,11 and 12 but looks like it uses a new/different sensor.
The 13 looks like it will go to about 750rwhp before it is pegged compared to the 11 and 12 that would only go to about 620-640 before being pegged.
Update
I verified the part #'s for the 13 sensor and the 12 are indeed the same.
I am wondering if SCT has an error in the new software.
I need to dig somemore ,something is not right. I am leaning towards the software.
I also called a friend over at Ford Racing today and he did say he was almost postive the 13 cai would be maxed out the same as the 12 (he said he does believe everything is the same)
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X2 Gotta have that blower singing!! :rockon:
Going by that, wouldn't my car have shut down at that number then?
The car will still make power if the MAF was pegged, it just means the MAF does not see any more air into the intake system. You could still be fine fuel wise though since 2011+ cars run closed loo[p wide bands at WOT. They would sense a lean mixture and the car could add fuel. I would imagine there is a limit to how much the the system could correct in that situation, but I have never looked at any of the software.
The only thing I have seen on the MAF is what Justin posted in the toher thread. Maybe he will get back and explain it in greater detail.
blackshelby
New Member
Nathan is 100percent correct
It would not shut down if you peg a MAF
The MAF would just not read the addition airflow past its max reading not allowing for addition fuel to be added.
Example if the meter can only read up to a 1000cfm and the motor is now moving 1200cfm it still only tells the computer and thinks it is moving 1000cfm
This car does use wide band o2's even at WOT which would add the fuel if it was going lean(maybe what is happening)
You don't want to ever peg the meter, you want the MAF to be able to see/ read all the air the motor is moving
I am still checking into all and will let you know what I find out.
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Subing.
Added pics to original post of the installed parts.
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