New Turbo Kit Sneak Peek(Ptuning)

[ptuning]

Originally Posted by Foobar

Hmm, so does this kit mate right up to the stock frontpipe location (replacing the overpipe with a downpipe connecting turbo and frontpipe (I guess midpipe would be a more appropriate term in this scenario?) Or does it mate up to the stock overpipe location? I guess this is why I need some pics, I'm trying to visualize how they made effective use of the space down there...

We'll offer an adapter that will bolt allow our 3" downpipe to bolt up to the factory midpipe, for those wishing to run other exhaust systems. However, our downpipe will bolt up directly to our 3" exhaust system, making for a true 3", all V-band, turboback exhaust system with no size transitions.

BTW, we get asked this question all the time when people are looking into purchasing one of our turbo systems.

"Can I make over X amount of HP with a 2.5" exhaust system with your turbo system?"

The answer it yes you can, however, you will still make more power with a 3" exhaust at the same boost level, period.

It doesn't matter if your target is 250whp or 350whp. You will make more power and torque everywhere with a 3" exhaust. Below 200whp, possibly not, but then again no one would want to target such a low number with a turbo.

[sw20kosh]

This turbo mounts low and behind the motor?

Is the stock header+cat retained? If not, would it be possible to retain it?

Awesome looking kit!

[Flat Black VW]

Originally Posted by ptuning

Thanks. We should be testing the production 3" exhaust in the next few days.

Oh, I know!

[kanundrum]

Originally Posted by Flat Black VW

Oh, I know!

Same :P

[Lonewolf]

It's about time...I was wondering what happened with this kit. It looks purrty...

[ptuning]

Originally Posted by sw20kosh

This turbo mounts low and behind the motor?

Is the stock header+cat retained? If not, would it be possible to retain it?

Awesome looking kit!

Thanks. Yes, yes, and yes.

[sw20kosh]

Originally Posted by ptuning

Thanks. Yes, yes, and yes.

That is rediculously awesome!

I posted this in another thread and am curious to know your thoughts:

Originally Posted by sw20kosh

What I cant wrap my head around is how pt tuning was able to get better low end torque and better/same boost onset vs a GT28 kit. Am I looking at this right? It's bigger so it should be laggier than gt28?

Is it just because of the difference between how a dyno dynamics works vs. a dyno jet.

Can a GT28 fit easily too?

[jamesm]

so how much difference in spool could one expect between a gtx2867r and a gtx3076r? looking at the compressor map for the 3076r, it should be good for ~350whp @8psi, over 500whp at 15-17psi. i'd imagine this comes with a bunch of lag, or considerably worse transient response, but you can't really tell from a dyno.

[ecko04]

Every ptuning kit I've owned has come with 0 lag. With the requisite 3" exhaust my vehicles have pulled like a bat out of hell from 2000 rpm to redline. I expect the same from this kit. Throughout the years PTUNING has met & exceeded my expectations, and I have pretty lofty expectations.

[ptuning]

Originally Posted by sw20kosh

That is rediculously awesome!

I posted this in another thread and am curious to know your thoughts:



Is it just because of the difference between how a dyno dynamics works vs. a dyno jet.

Can a GT28 fit easily too?

Let's just say that our boost and torque curves are as real as a heart attack.

While it is true that the DD dyno can alter the ramp rate (how fast or how slow the dyno lets the car accelerate on a pull) and also gives you the ability to load the vehicle before initiating a pull, these factors did not play into our boost and torque curve/numbers. We'll explain why.

Theoretically, to maximize the turbo's "spool up" rate on the dyno, you would want to use a slow ramp rate. However, if you were to make the ramp rate too slow, you would be subjecting the engine to a totally unnecessary amount of stress and heat soak that you would not see in the real world. This would actually hurt the peak HP numbers to an extent. Also, even with the baller fan setup we have in our dyno cell, we cannot generate the same 50-120+ mph rush of air that the car would see when it blasts down the road.

Anyhow, while I'm sure we can certainly replicate a 30+ second dyno pull on our dyno, it is simply not something we would ever want to subject an engine to. With that said, when we tune a vehicle, we set the ramp rate slow enough to allow the engine plenty of time to wind up the turbo and produce a good boost and torque curve down low and fast enough to not generate an unnecessary amount of heat soak, etc.

The other nice aspect of the DD dyno is the ability for the tuners to fully load the car up before initiating a pull. And why wouldn't you. How are you supposed to get the WOT AFR, ignition/cam timing, etc correct at lower rpms while on the dyno if you roll in on a pull. Even so, regardless of whether we rolled in on the throttle or floored it before initiating the pull, the boost curve is not going to change on our 6.2psi tune. If we were dealing with a stock turbo EVO 8,9,10, running 25+psi peak, then the ramp rate and pre-loading would have a greater impact on what the boost and torque curve looks like down low.

In a nut shell, I'm confident our turbo system will spool up the same on a DD dyno, Dynojet, Dynopack, or on the road. Also, if you look, our dyno chart for HP/TQ/Boost are all from the same run file.

With this said, this is just a simple explanation of our OWN observation. We're absolutely not discounting other people's experiences on this matter. Those that follow us know that we prefer to stay out of any type of internet bickering and just do our own thing.

As for the GT28 turbos, I'm sure we can make them work too, but we would have to step down our 4" intake at the compressor inlet.

[ptuning]

Originally Posted by jamesm

so how much difference in spool could one expect between a gtx2867r and a gtx3076r? looking at the compressor map for the 3076r, it should be good for ~350whp @8psi, over 500whp at 15-17psi. i'd imagine this comes with a bunch of lag, or considerably worse transient response, but you can't really tell from a dyno.

Given the overall results that we've achieved with the GT3076R, we're not sure we'll be testing the 28's anytime soon. We're not saying that we won't, but we just have a lot of other things to do before going there.

This is just our own opinion, and we're certainly looking like the odd man out, but we feel the 30R couples well with this engine. The transient boost response on the road feels great as does the powerband.

[sw20kosh]

Originally Posted by ptuning

Given the overall results that we've achieved with the GT3076R, we're not sure we'll be testing the 28's anytime soon. We're not saying that we won't, but we just have a lot of other things to do before going there.

This is just our own opinion, and we're certainly looking like the odd man out, but we feel the 30R couples well with this engine. The transient boost response on the road feels great as does the powerband.

Would love to see the boost gauge reading on the street while accelerating so we could see what you are talking about *wink*

[Events@Ptuning]

For those who are local to the DC/MD/VA Area swing by the Shop on Saturday(March 23rd Detailers Domain meet) for a In person look at the Turbo Kit.

[Darryljr11]

Wheres the turbo?