Bypass pipes are great, awesome sound but no good for tracks like RR, LRP, Laguna Seca which have sound limits. Much louder than 103 db.

Now if you are really hardcore run the OLOA with bypass pipes I think we went thru 20 sets of disposable earplugs and our ears were still ringing after 3000++ mile in 08.

Peter

 

Peter did you guys have cat delete as well?

 

Great track video. Really enjoyed it. Brought back memmories of the course layout but a bit different. Last time I raced there was late 90's when they had the "big dip" leading to under the bridge and blind right sweeper.
Got to find time to get back again.
btw love the camera angle view. Give a good effect.

Ranger

 

We are going to play around with the GoPro's the next track event. I think we will do a session in car, and change up the placement on the outside too.

Tray

 

Sharif,

No we still ran the Cat. Not a lot of gain from bypass pipes in hp but it does get app 50#'s off the rear.

Peter

 

You put a DB gun on yours at full song?

Yes the weight savings is tremendous, and removed from the best spots.

 

Great project, I hope to be building one in the same color to similar specs here in the next year or so.

Question on spring rates. Care to share your rational on square sping rates? Seems like most JRZ / Moton uses are using 200-300lbs more rear spring than front. Curious why you chose square instead.

Andy

 

Very nice!

 

Hi Andy, great question.

Because this is a weekend warrior, track day car, my main concern was to select a spring rate for maximum track performance while running very sticky Hoosier tires.

Square spring rates demand exacting attention to driving, and are not forgiving at all. They will also be a bit rough on the street, and probably aren't suitable for daily driving unless you are glutton for punishment like me. The stiff front spring minimized that rocking and disruptive weight transfer rear to front under braking. This was the first thing I noticed with the OEM GT3 suspension....the front was way way too soft.

As such, the mainstream opinion by many, is to run a soft spring package overall, and a softer rate up front. That's why you see most off the shelf systems suggesting the softer front setup. It's more forgiving both on the track, and on the street, particularly when running non-slick tires. As a general rule, the more tire you run, the more spring rate you need to run.


Bryan@JRZ and Mike and Caset at TPC might have some additional commentary to share, as they have done this many times before. Thanks guys!

Sharif

 

Sharif,

Never ran a gun on the db from bypass pipes, they are just LOUD and sound great.

The usual front to rear spring difference on a 996GT3 is 150#'s. I ran 550 front 700 rear for the OLOA in 2008. This was a compromise between street/AutoX and Track. Works good overall with street tires and up to Hoosiers, Probably a little soft for Slicks.

Peter

 

Looks and sounds fantastic! Just how streetable is the Fabspeed bypass though? Loud is nice, but can get obnoxious with the wrong setup.

 

It's very loud. I would not recommend it to anyone that wasn't committed to being the loudest car on the street. It's borderline socially unacceptable in certain parts of the country.

For a weekend warrior/track day car, it's magical.

Sharif

 

Sorry for the delays guys. But we just got some goodies to share. We have a new set of JRZ RS Pro's with custom spring rates. For those who are not aware of the JRZ Suspension they are the top choice for professional race teams. JRZ have proved themselves on the track with countless victories across many forms of motorsport. Forged Performance has been using them for years on all of our race cars, and will continue to be our choice for suspension.



Stay tuned for more updates to come!










Tray

 

OOOF, 1000# springs. Gonna chatter your eyeteeth @ Sebring.

Peter

 

Outstanding Sharif! Again, congrats on the Porsche and look forward to seeing you out at Redline / Sebring next week. As always, nothing short of meticulous detail and perfection from you and the crew at Forged.