The dyno pic#1 is right after the 00VI install with no tunning at all and switch over point was at ~4800 rpms which gave me 200tq and 183 hp ...
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The next couple of dyno's are when I went to tune with my VAFC 2.
Dyno pic #2 was the second run with very little tunning and the switch over was moved to 5200 rpms on the VAFC (but it lags about 200-300 rpms) which gave me 190 hp and 204 tq.
Dyno pic #3 and 4 was 5th run of the day 182 hp and 205 tq (car was getting heat soaked so I was losing hp) used same switch over.
Dyno pic# 5 and 6 was my last run of the day tuned my a/f to the best I could which gave me 183 hp and 210 tq and used same switch over.

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Mustang Dyno

Need to get on a dynomax

I think your VIAS is broken, fix it.

 

Hard to tell what's what by those pics. Wonder why the lines get so eratic after you start tuning?

 

Yeah the scanner I used sucks. But the red line is the hp, the dark line (black) that starts out high in the beginning is my a/f ratio, and the dark line (supposed to be Blue) that starts out lower is my tq line. The numbers on the right in red are hp and on the left are for a/f ratio or tq. I think because this person did not smooth the graphs out like the first time I went.

 

Mustang dynos tend to dyno conservative.. Nice numbers.

 

What's that mean I make more than what I should or less....

 

WHo knows, either way you won't know til you go on a real dyno.

 

GO on a Dynojet.

 

Ok I did some research on the whole mustang and dynojet. The person that works where I got my dyno said that it puts a load on the car(as if I were on the really on the street) so the hp/tq numbers are lower. Plus I found this on the web
So I can deal with my numbers being a lower, if I really want to find out with out a load I will go to a dynojet. But from a formula (which is add 10-15%) i would put down about 209 hp and 231 tq using just 10%.

 

that may very well be correct but for comparison to other dynos dynojet is your best bet.I would love to compare your dynos to mine but they are not dynojet so it would be comparing apples to oranges.
Regardless nice numbers, so HIt the TRACk and lets see how you can do.

 

Yeah, I'm going to try and find a dynojet around here just so I can see what it will be. Plus I don't like how the scale their graphs.

 

Back to my graph, when I changed my switch over point on the power valve I eliminating that ugly switch over dip and gained 7hp just from that.

 

you're auto I take it? those are nice numbers. What are all your mods?

 

I haven't had a chance to go to a dynojet yet (probably do it in the fall) but I'm a 5sp. Mods VI, VAFC 2, UP, and Y-pipe.

 

Really? No ecu huh? Wow, nice TQ numbers. I assumed you were auto because of the difference between your tq and hp. What's the UP, UDP?

 

Yeah motostorm underdrive pulley, nice mod for $90. Thanks for the complements I gained about 10 tq tuning with the vafc 2.

 

nice. I gained 14 whp and 19 wtf from tuning with the SAFC-II. I believe next will be 5 spd swap for another 15 or so whp/wtq.

 

Thats real good gains.

 

Excuse my ignorance, but what is a SAFC-II?

 

Super Air Fuel Converter 2

 

That's great now what is that in English, ie. what does it do and how muchy?

 

It basically can control your air-fuel mixture meaning you can gain more horse power and torque.

 

my apologies, i figured perhaps you would have looked it up on your own or something. I said that in English, maybe its just your lack of understanding. With it, you can give/take air/fuel at every 200 rpm, making your A/F ratio produce the most hp/tq

 

The Apexi SAFC is used to lower or increase the air-fuel ratio.

The SAFC intercepts the voltage signal from the maf sensor and either adds or subtracts volts to fool the ecu into thinking that the airflow into the engine is different that what it actually is. The ecu will then either increase or decrease the fuel injector duty cycle based on the altered maf signal.

If you are trying to lower the afr of an engine already running with 100% injector duty cycle, however, the SAFC is useless. In that case you have to increase fuel pressure to add more fuel. A better option is to replace your injectors with larger ones and use a piggyback or have your ecu reprogrammed for the larger injectors.

Another consideration is that the VQ30 ecu controls ignition timing using the maf signal, TPS setting and engine rpm. Using the SAFC to make a large correction to afr may have the unwanted result of changing ignition timing as well.

 

those dyno slips are kinda hard to read. If you would like, you can mail them to me and I can scan them and mail it back to you.

 

Mustang dynos are bad. When your on the road you are putting less of a load than a Mustang dyno. Imagine the raod doing a burnout on your tires. That is kinda what mustang dyno is like. The road can not put a load on your car. I wil look for some better info. For you guys on this topic. But ne wyas some nice numbers with the vi.