Highest N/A rwhp?

[nastang87xx]

Anything new?

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[Mjc1241]

In for equal length as well. On a side note, I hope that at some point Ford Performance offers a tune for our cars. Most likely wishful thinking but the performance capability of the 2018 with the PP2 option is nearly equal to our cars. Would just be nice for Ford to throw GT350 owners a bone or two. I for one, and I don't think that I am in the minority, would definitely like a little more oomph while still keeping my warranty. Everything else about the car is exactly what I was searching for when I was in the market for a performance car and enjoy the hell out of driving it.

 

[l'Ingegnere]

All of this sounds fun until the vibration cracks something *really* expensive ;)

 

[nastang87xx]

All of this sounds fun until the vibration cracks something *really* expensive ;)

Explain. The harmonic balancer isn't changing here and the accessories aren't changing so I don't understand your logic.

 

[cosmo]

Explain. The harmonic balancer isn't changing here and the accessories aren't changing so I don't understand your logic.

There are dampers on the headers as well. Unless the exhaust companies know the critical frequencies to properly place the dampers, any changing of the headers will degrade durability.

 

[nastang87xx]

There are dampers on the headers as well. Unless the exhaust companies know the critical frequencies to properly place the dampers, any changing of the headers will degrade durability.

They're on the cat pipes, not the headers.

 

[nastang87xx]

Stock manifolds. No dampeners whatsoever.

 

[cosmo]

They're on the cat pipes, not the headers.

Before the flexpipe, not after. So it will act as a dampener for the engine itself through the headers. Everything prior to that point is hard mounted.

 

[11secls1]

Before the flexpipe, not after. So it will act as a dampener for the engine itself through the headers. Everything prior to that point is hard mounted.

Adding and or removing a fixed mass to/from the exhaust system will not effect vibration. It is there for other reasons.

 

[cosmo]

Adding and or removing a fixed mass to/from the exhaust system will not effect vibration. It is there for other reasons.

No. In a vehicle primed for weight reduction (carbon fiber composite front end, rear seat delete, complete aluminum reworking of front suspension, etc), they won't leave a random weight. It's a mass damper. During DV work they literally sat in a chassis dyno running the vehicle with accelerometers and slowly adding mass until they met their metric.

I have nothing to gain arguing this point. I am an engineer in Southeast Michigan. Please listen.

 

[11secls1]

No. In a vehicle primed for weight reduction (carbon fiber composite front end, rear seat delete, complete aluminum reworking of front suspension, etc), they won't leave a random weight. It's a mass damper. During DV work they literally sat in a chassis dyno running the vehicle with accelerometers and slowly adding mass until they met their metric.

I have nothing to gain arguing this point. I am an engineer in Southeast Michigan. Please listen.

I have had headers and OR X-Pipe on my car since I bought it. Zero changes in vibration.

 

[cosmo]

I have had headers and OR X-Pipe on my car since I bought it. Zero changes in vibration.

The vibrations this damper was designed to help with aren't with regards to making the engine sound better, rather it is to help with durability.

Perhaps customer street vehicles won't have a problem. I just know that in the engine DV (which is MUCH more extreme than whatever a customer will do to their vehicle) needed many NVH counter-measures to pass, this being one of them.

 

[11secls1]

The vibrations this damper was designed to help with aren't with regards to making the engine sound better, rather it is to help with durability.

Perhaps customer street vehicles won't have a problem. I just know that in the engine DV (which is MUCH more extreme than whatever a customer will do to their vehicle) needed many NVH counter-measures to pass, this being one of them.

That thing looks like it's attached to the factory exhaust, which I removed

 

[Ninjak]

I'll chime in here. I just did Kooks LT's on my 350 and I removed the vibration dampeners from the stock cats location and bolted them onto the where Kooks had designated on their headers.

Now another person with a R did not do this and he had serious vibration issues. So much so that the oil came apart and yeah you know how that nealy ended...Luckily it was caught just as he reached the shop.

I would not recommend driving the car without the dampers connected...unless your exhaust has some type of counter vibration built in or in the design of the headers.

 

[MrCincinnati]

I'll chime in here. I just did Kooks LT's on my 350...

How do u like the LT’s? Worth it? Insanely loud? Are you still able to quiet it down to non hoon levels with valves closed?

What time/measured gains? Pulling harder up top?

Sorry for the 20 questions..

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