The Results Are In!! Full Blown Stage 1 Kit @ Pure Automotive Performance!

[ravenblackfrs]

Originally Posted by Supermassive

Why do people still have this misconception about turbo lag...

Turbo lag on these kits is a myth propagated by the countless posts that spout nonsense about how SC has no lag and flat torque curves...I have yet to see any conclusive evidence in any post on these forums showing that a SC reaches full boost any faster than a turbo kit. The crazy thing about these engines and the current crop of turbos chosen for our kits is that the turbos actually outperform our engines. My Precision turbo 5558 can boost up to 30PSI but at the most i will likely only use 20PSI. Right now with just 7PSI on my base tune power is on tap almost all the time. the only time it is lacking in boost is when I am lugging the engine at 2000RPM or below and step on the throttle hard.

Superchargers are a different approach to the same goal and at the small boost levels that we are seeing for pump gas cars both seem to respond very similar. The real differences will only show at higher boost, where turbos will crush SC for raw HP, but SC will have the upper hand with maintaining the torque through the rpm band.

So for anyone still on the fence about SC or TC, you can't go wrong with either, unless you are unwilling to spend the money on all the supporting mods like tires, suspension, exhaust, etc....in that case maybe you should look elsewhere for your jollies.

Relax cowboy.... if there is no lag then cool... I'm pretty sure I stated in other posts on this thread that I was a sc/tc noob. Just going off what I've heard about TC's that there is a certain amount of lag no matter what due to the engine having to rev up/spool up the TC. If I'm wrong or read that there was lag somewhere, then my fault... don't kill the "questioner"... lol.

[Ryephile]

Originally Posted by Supermassive

Why do people still have this misconception about turbo lag...

Turbo lag on these kits is a myth propagated by the countless posts that spout nonsense.....

Turbo's by definition have lag. The question is simply how much lag a particular system has. The biggest misconception seems to be the confusion between boost threshold and lag, while interrelated they are different metrics. It would of course behoove the manufacturers of these turbo kits to provide threshold and lag data, then the misconceptions about specific kits would be cleared up.

[FullBlown]

The size of the turbo on this car is perfect. All of our customers love the way it responds.

[tnt]

I want one !

[ravenblackfrs]

I am going to commit to this soon!

[King Tut]

Did you guys use a gasket between the downpipe and the exhaust housing on the turbo?

[FullBlown]

We've installed hundreds of turbo kits and never used a gasket between there.

[King Tut]

Originally Posted by FullBlown

We've installed hundreds of turbo kits and never used a gasket between there.

Yeah I know, but I would just feel better about it. Perrin sells these:

http://www.perrinperformance.com/p/87

And ATP Turbo sells these:

http://www.atpturbo.com/mm5/merchant...egory_Code=GSK

I figure a little insurance against two non perfectly machined surfaces couldn't hurt.

[Pure Automotive]

I did put a very thin layer of RTV on the DP just for good measure, as I have found that can prevent small leaks.

[Pure Automotive]

Adding a gasket definitely won't hurt anything if it gives you piece of mind.

[FullBlown]

Originally Posted by King Tut

Yeah I know, but I would just feel better about it. Perrin sells these:

http://www.perrinperformance.com/p/87

And ATP Turbo sells these:

http://www.atpturbo.com/mm5/merchant...egory_Code=GSK

I figure a little insurance against two non perfectly machined surfaces couldn't hurt.

Yeh, if you choose to use a gasket. I would use the ATP one, any metal gasket is better then the composite ones. From the looks of the pics, the garrett ones look like a composite design.

[King Tut]

Originally Posted by FullBlown

Yeh, if you choose to use a gasket. I would use the ATP one, any metal gasket is better then the composite ones. From the looks of the pics, the garrett ones look like a composite design.

Thanks. I am almost 100% sure, but I just wanted to verify that the outlet of the GT2871R turbo in the kit is 2.5" and not 3".

[FullBlown]

Originally Posted by King Tut

Thanks. I am almost 100% sure, but I just wanted to verify that the outlet of the GT2871R turbo in the kit is 2.5" and not 3".

2.5 is correct

[Supermassive]

Originally Posted by ravenblackfrs

Relax cowboy.... if there is no lag then cool... I'm pretty sure I stated in other posts on this thread that I was a sc/tc noob. Just going off what I've heard about TC's that there is a certain amount of lag no matter what due to the engine having to rev up/spool up the TC. If I'm wrong or read that there was lag somewhere, then my fault... don't kill the "questioner"... lol.

I'm sorry if I came off sounding like I was berating you. It's just frustrating when people assume that TC systems automatically have this "overwhelming" turbo lag built in and only by using very tiny turbos is it possible to have a car that has boost on demand. Of course i have no SC FRS/BRZ's around me that i can compare for the sake of giving a truly accurate idea of what the differences might be in power delivery. That being said, what you will find with pretty much any of these kits are turbo's that are well matched to the application. These kits have really good boost response, maybe not as good as all motor would be but damn near.

Turbo design is not really something that manufacturers have really changed for years and years, the real changes come in efficiency of the turbo as applied to a certain car or build. Today turbo kit manufacturers all have similar goals to produce power in large quantities, but they also try to make kit's that are useful to people like me who DD their cars. I am sure there will be kits in the making that will strap huge turbos to this car to make even more power which will sacrifice turbo response for peak output, but for the time being that seems to be a ways off.