Project FI Protege!

[ekoo]

without a table, u'll be "guessing" where the power drop is at X rpm. not very accurate for tuning.

dynodynamics has a number table like an excel sheet which shows all of the following right beside eachother:
rpm in 250rpm increments, MAP, AF, whp, tq

u really can't go wrong with those for tuning. and the fact that its nice to see 250rpm increments instead of guessing.... "oh.... i THINK the dip is around 4500-4600rpm.....lets jack the timing or put more fuel......uh......at.....4650rpm"

[silvia_s14a]

Forcefed's dyno reads both RPM and MPH, but that's just a choice of dyno sheet printout. The tuning will still be in RPM and whatnot. Though, Forcefed's dyno is 5th handed, or something like that. Anyways, I was taught to tune a motor to run safely with under 2% knock at boost 20% higher than intended and do hard pulls up steep hills. While fine tuning it slightly to smooth the powerband on a dyno. You don't really need a dyno to tune a motor for drivability and safety, but it sure is a good idea if you want to extract the most power out of your motor. A dyno is not really needed if you are making massive power anyways and don't care about smoothing the powerband.

Some dynos can be hooked up to a wideband and are also capable of jumping into various existing sensors in a car to get a comprehensive readout. But that option is completely redundant if you have a decent ECU with data logging capability along with a wideband. This is where PowerFC's become extremely handy.

Falango, I guess your car is misfiring at certain point around 70mph. Given that your fuel tuning is smooth, I suggest you look into diagnosing your ignition components. You may also want to check out your fuel pressure or fuel pressure regulator. May I ask what kind of software you are using? SAFCII?

[Falango]

Not sure what kind of software was used for the tuning, but as for the fuel system, I am still using the stock injectors and fuel pump.  My stock injectors are still good for the setup, but near a full duty cycle.  I'll look into my fuel pressure regulator, and fuel pressure itself.

That spike at just over 70mph had me wondering too.

I can understand the meaning behind how you were taught too, as far as the knocking.  As mentioned, it spiked at 10psi, which I don't intend on keeping it at, plus he said it sounded like it was pinging slightly near redline in 4th.  I shouldn't have any problems with that, as long as I keep using 94 octane (which I will do), and not mash the gas in 4th, because there is a chance it can drop on me.

[silvia_s14a]

10psi is a pretty significant spike. Where is your wastegate vacuum signal drawn? From a charged piping or from the intake manifold/throttlebody? If the latter, you may want to switch the source to a charged pipe. If not, then whatever.

[Falango]

Well I don't actually have a boost gauge hooked up right now, because I don't have a mounting palce for it yet.  I had him hook one up at the shop, but I'm not sure where he sourced it from, I didn't see.  I'm assuming he took it from the manifold though.