2012+ LFX Dyno Thread

[Ivan @ Southwest Speed]

Originally Posted by GretchenGotGrowl

I think that's because the scales for torque and HP are different. I didn't actually plug in the numbers, but it looks like they would cross at 5252 if they were scaled the same.

That said, it would be nice to see a full pull before the tune.

Exactly. This car cut out from the factory at that.....I pushed it till it literally hit the rev limiter and cut fuel.

Perfect example of stock tune limitations.

Another interesting bit is how the baseline numbers spiked just before it cut out showing what I feel is an incorrect/true baseline number.

This was a LFX in a Camaro with a Loaded 424XLC2 Dynojet with a 1.18CF.

[GretchenGotGrowl]

Originally Posted by Ivan @ Southwest Speed

Exactly. This car cut out from the factory at that.....I pushed it till it literally hit the rev limiter and cut fuel.

Perfect example of stock tune limitations.

This was a LFX in a Camaro with a Loaded 424XLC2 Dynojet with a 1.18CF.

What gearbwere you in?

Sent from my GT-N8013 using Tapatalk

[Ivan @ Southwest Speed]

Originally Posted by DSX_Camaro

I certainly hope this isn't how CAI markets their equipment... AND beyond that, the graph doesn't cross at 5252... Big issue.

No idea how CAI markets their products personally but we all can debate weather or not it makes power.

It's a scaled graph.....look at the two values on each side of the dyno.

[Ivan @ Southwest Speed]

Originally Posted by GretchenGotGrowl

What gearbwere you in?

Sent from my GT-N8013 using Tapatalk

4th Gear

[GretchenGotGrowl]

Originally Posted by Ivan @ Southwest Speed

4th Gear

Yeah, that makes since. Damn speed limiter on the V6s.

Sent from my GT-N8013 using Tapatalk

[911medic]

Originally Posted by Ivan @ Southwest Speed

I pushed it till it literally hit the rev limiter and cut fuel.

Originally Posted by Ivan @ Southwest Speed

4th Gear

So you didn't hit the rev limiter, you hit the speed limiter. That makes more sense. I know the rev limiter is not at 5500 rpm.

Must've been a car with the 118mph limiter.

[911medic]

Originally Posted by GretchenGotGrowl

Damn speed limiter on the V6s.

Only the ones that came with 18" wheels have the lower limiter.

We're not all damned!!

[Ivan @ Southwest Speed]

Originally Posted by 911medic

So you didn't hit the rev limiter, you hit the speed limiter. That makes more sense. I know the rev limiter is not at 5500 rpm.

Must've been a car with the 118mph limiter.

My apologies...yes, the speed limiter was reached on the first pull.

I really thought that the linear gains between the two pulls were where it was at. Comparing, even to the dropoff point of 5500 rpm, the two runs, there is such a huge difference in the pulls. At the end of the day, it's the gains made that the customer can actually appreciate. And of course, I can't go out and romp on the cars to see if it feels better at all.

But I can hope that the Dyno results prove that it does!

[GretchenGotGrowl]

Originally Posted by 911medic

Only the ones that came with 18" wheels have the lower limiter.

We're not all damned!!

I know, I was just generalizing.

Sent from my GT-N8013 using Tapatalk

[GretchenGotGrowl]

Originally Posted by Ivan @ Southwest Speed

My apologies...yes, the speed limiter was reached on the first pull.

I really thought that the linear gains between the two pulls were where it was at. Comparing, even to the dropoff point of 5500 rpm, the two runs, there is such a huge difference in the pulls. At the end of the day, it's the gains made that the customer can actually appreciate. And of course, I can't go out and romp on the cars to see if it feels better at all.

But I can hope that the Dyno results prove that it does!

It is a good separation up to that point. At your altitude the numbers look reasonable to me.

Sent from my GT-N8013 using Tapatalk

[911medic]

Originally Posted by Ivan @ Southwest Speed

My apologies...yes, the speed limiter was reached on the first pull.

I really thought that the linear gains between the two pulls were where it was at. Comparing, even to the dropoff point of 5500 rpm, the two runs, there is such a huge difference in the pulls. At the end of the day, it's the gains made that the customer can actually appreciate. And of course, I can't go out and romp on the cars to see if it feels better at all.

But I can hope that the Dyno results prove that it does!

Yes, I will agree that the post-tune gains along the graph are very good. Like many, my eye first goes to the differences in peak results, and when I saw that low peak baseline number and the cutoff, I thought, WTF?

The fact that you could remove that speed limiter is definitely another tune benefit.

Do you ever consider baseline dynoing the cars with the lower limiter in 3rd gear?

[Ivan @ Southwest Speed]

Originally Posted by GretchenGotGrowl

It is a good separation up to that point. At your altitude the numbers look reasonable to me.

Sent from my GT-N8013 using Tapatalk

Yeah we don't have that awesome Sea Level stuff that I was getting used to while I was down in Pensacola..... :(

This altitude is really tough for our FI crowd. Really gotta push em hard up here.

[Ivan @ Southwest Speed]

Originally Posted by 911medic

Yes, I will agree that the post-tune gains along the graph are very good. Like many, my eye first goes to the differences in peak results, and when I saw that low peak baseline number and the cutoff, I thought, WTF?

The fact that you could remove that speed limiter is definitely another tune benefit.

Do you ever consider baseline dynoing the cars with the lower limiter in 3rd gear?

All the time yes. This example was just for the plain fact that it was a Dyno Tune Result that any LFX customer...regardless of modifications.....would be able to compare and see with their own eyes.

The ability see see the gains after the speed cutout was lifted and the gains under the curve with just a tune.

[911medic]

Originally Posted by GretchenGotGrowl

At your altitude the numbers look reasonable to me.

Are there correction factors for altitude, or no? I know corrections are applied, but am not familiar with what they correct for.
Gearing not being 1:1? Temperature? Not sure.