EQT E-Tuning Q&A

[camel_golf2]

The HPFP is operated via the exhaust cam, so its flow is proportional to RPM (at higher RPM it can hold more pressure and flow more fuel than at lower RPM). Having the HPFP max out and drop some pressure in the mid range is not a problem because there is plenty of injection window available at lower RPM's. The ECU just holds the injector open longer to achieve the same desired fuel flow at a lower pressure. At higher RPM, the injection window is much shorter, so holding pressure becomes more critical.

-- Ed

What would you consider “higher rpm”?

 

[Ed @ EQT]

That's pretty cool that the injectors can compensate for lower rail pressure... would have thought the drop in rail pressure would throw everything off...

Not at all the case on modern cars, especially DI. DI is set up to work at a very wide range of rail pressures as the pressure is not nearly as stable as a classic PI only system.

-- Ed

 

[Ed @ EQT]

What would you consider “higher rpm”?

Usually over 5500RPM is where injection window starts to become an issue.

-- Ed

 

[Cliff p.]

The EQT Memorial Day Sale starts May 24th and runs through the 30th!​

We at Equilibrium Tuning would like to honor our fallen brothers and sisters in arms, and ask that you take a few minutes this Memorial Day weekend to pay tribute to those that are no longer with us. While you’re out there barbecuing this Memorial Day weekend, take a moment to honor and remember those who gave the ultimate sacrifice for our freedoms. Freedom isn't free, and their selfless service shall be forever remembered.

https://www.eqtuning.com​

 

[krs]

random question I just thought of today, and couldn’t find a clear answer.

I’m on a E30 tune, do I need to use 91 octane fuel for my blend, or can I use 87 octane for the blend?

 

[Cliff p.]

random question I just thought of today, and couldn’t find a clear answer.

I’m on a E30 tune, do I need to use 91 octane fuel for my blend, or can I use 87 octane for the blend?

Strongly recommend you blend with the highest octane available. If that’s 91 in your area, you should use it to blend.

 

[krs]

Strongly recommend you blend with the highest octane available. If that’s 91 in your area, you should use it to blend.

Cool, that’s what I’ve been doing, and I’ll stick to that.

 

[ironicbadger]

I'm tracking my R a lot at the moment. I have an OTS EQT S1 tune and logged a few sessions last time out at VIR with high ambients (85f) on a mechanically 100% stock car. As you might expect by only a few minutes into the session the heat build up was becoming an issue and knock sensors were pulling up to 8 deg of timing - I could feel this in the car throughout the session getting worse, again as you would expect with OTS S1.

Since that event I have upgraded to the IE v2 intercooler and will be out again on track this weekend with even higher ambients. I think I'm looking for something like a Stage 0.5 tune that has a smooth curve and isn't pushing too hard for reliable extended track sessions.

Is this what your custom tune option would be able to achieve for me? A dyno day sounds interesting, what are my options around Raleigh, NC area?

 

[GTIfan99]

I'm tracking my R a lot at the moment. I have an OTS EQT S1 tune and logged a few sessions last time out at VIR with high ambients (85f) on a mechanically 100% stock car. As you might expect by only a few minutes into the session the heat build up was becoming an issue and knock sensors were pulling up to 8 deg of timing - I could feel this in the car throughout the session getting worse, again as you would expect with OTS S1.

Since that event I have upgraded to the IE v2 intercooler and will be out again on track this weekend with even higher ambients. I think I'm looking for something like a Stage 0.5 tune that has a smooth curve and isn't pushing too hard for reliable extended track sessions.

Is this what your custom tune option would be able to achieve for me? A dyno day sounds interesting, what are my options around Raleigh, NC area?

Ed does some tracking too, so he'll be able to get a custom tune setup for you.

But an oil cooler may still be in your future.

 

[swcrow]

OTS tunes leave a lot to be desired, no matter who the tuner is......you need an e-tune

 

[scrllock]

I'm tracking my R a lot at the moment. I have an OTS EQT S1 tune and logged a few sessions last time out at VIR with high ambients (85f) on a mechanically 100% stock car. As you might expect by only a few minutes into the session the heat build up was becoming an issue and knock sensors were pulling up to 8 deg of timing - I could feel this in the car throughout the session getting worse, again as you would expect with OTS S1.

Since that event I have upgraded to the IE v2 intercooler and will be out again on track this weekend with even higher ambients. I think I'm looking for something like a Stage 0.5 tune that has a smooth curve and isn't pushing too hard for reliable extended track sessions.

Is this what your custom tune option would be able to achieve for me? A dyno day sounds interesting, what are my options around Raleigh, NC area?

where are you getting 8deg from? that's extremely high, especially for a numbed EQT tune. if the tune is set up properly, the timing table will be targeting less due to IATs anyway and it shouldn't show up as knock reduction.

the issue with EQT ots stuff is they run it as spicy as they think they can get away with, even on stage 1 tunes. boost = heat, especially when you're overspinning to 28-29psi. I'd suggest keeping your IS38 in its efficiency range at 25-26psi with less timing up top than a "stage 1" on 93 and then let it eat timing when running ethanol. I've had a calibration like this for a few months now and it's been great for tracking.

 

[ironicbadger]

where are you getting 8deg from? that's extremely high, especially for a numbed EQT tune. if the tune is set up properly, the timing table will be targeting less due to IATs anyway and it shouldn't show up as knock reduction.

There's some conversation about it this thread - but it's also in that attached log file from my previous post here.

the issue with EQT ots stuff is they run it as spicy as they think they can get away with, even on stage 1 tunes. boost = heat, especially when you're overspinning to 28-29psi. I'd suggest keeping your IS38 in its efficiency range at 25-26psi with less timing up top than a "stage 1" on 93 and then let it eat timing when running ethanol. I've had a calibration like this for a few months now and it's been great for tracking.

That's exactly it. I'm not after spicy on track. I'm after consistent! If you've got time to talk me through your calibration (maybe not in this thread) that'd be very handy.

 

[JettiGLI]

Nobody said what fuel you are running, maybe you can walk away with a 91 tune.

 

[ironicbadger]

Nobody said what fuel you are running, maybe you can walk away with a 91 tune.

93 atm. I’m just going to go with factory tune on track this weekend. The EQT sawce is a bit spicy.

 

[UtahMK7.5]

Just placed my Vortex order today and was surprised to see the Cobb and sensors ship 2 hours later! My question is will the Cobb come loaded with the base file if I chose to be tuned through you? Also I'm having a shop install the turbo once it arrives so I assume load the base file and I'm good to drive the car until my remote tuning date.