Italy993

Hi everybody,

I was hoping you guys could help me out a bit on spending some money on the car to make it sharper on the street and more track worthy.

Some specs from the car:

GT3 MK1 Clubsport
BBS motorsport wheels ( 9J + 12J) with mpsc tyres
Original wheels with MPSS

I use the car only as a weekend toy + 5/6 track days a year.

So here is my question.

What parts should I replace?
What is a good neutral alignment (I don't want to change the pasm system)?
The car never had an alignment so far but I guess it comes out at the factory how it should be?

Thanks in advance and greeting from pasta land

Antonio

mooty

necessary

club sport roll bar with harness
proper seats
adj rear toe linx

optional

monoball upper and lower control arms, frt tie rod, upper shock mounts, thrust arom, thrust arm puck

Italy993

Hello Mooty!

Thanks for the quick reply

The car is a MK1 clubsport so it has standard the CGT seats and rollbar equiped.

With adjustable rear toe links you mean these?:
RSS Adjustable Toe Steer Kit
http://www.sharkwerks.com/products.php?pid=205

ANy idea about for the alignment?

Thanks!

Jake951

Tarett (http://www.tarett.com/items/996-997-...lnk-detail.htm) also makes a nice set of rear toe links. With stock links, the rear toe on my car would go out of alignment after just one track event and the Tarett links solved this problem.

Another popular upgrade is a GT2 rear sway bar, which is stiffer than stock and reduces the understeer that is built into the 997.1 GT3 suspension setup.

There are lots of threads on alignment in this forum that you find via search. For mixed street/track use, my specs are:

front camber: -2.3 deg
front toe: zero
rear camber: -1.8 deg
rear toe: .2 deg

Most of my miles are on the street but 90% of my tire wear is from the track. With these specs, I get pretty even wear across the tires (MPSS).

Other useful threads:
https://rennlist.com/forums/997-gt2-...fications.html
https://rennlist.com/forums/997-gt2-...-sway-bar.html
https://rennlist.com/forums/997-gt2-...ys-in-gt3.html

Italy993

Hi Jake,

That's really helpfull

Do you run the rear GT2 bar also?
What tyres do you use?

Thanks again.

NJ-GT

Being a 997.1 GT3 CS, I would only do this:

- Replace brake fluid with ProSpeed 683, Endless RF650, or Castrol SRF
- Install 997.2 GT3 rear brake cooling ducts
- Install rear toe-links (ERP, RSS, etc)
- A set of GMG sway bars
- Send the LSD to Guard and get it upgraded
- Erase the side mufflers with RPW bypass pipes (saves 50 lbs , gains power, improves cooling to the engine heads)

wheels and tires of your choice...

You're welcome

TRAKCAR

Don't forget front spoiler radiator screens.

Jake951

Yes, I have the GT2 bar. Tires are MPSS. The outside shoulders on these tires are pretty soft and will wear down very quickly unless you dial in more negative camber than the factory street setting.

Also, a brake pad upgrade is recommended on the track. I have Performance Friction PFC08, which a lot of people here like.

utkinpol

you did not mention front gt2 air ducts - those big ones, $200 something apiece. or does RS car get them by default?
also nobody said yet to weld all your coolant hoses, so, I am saying that.

Italy993

I'm in Italy so sending my lsd to the states will be very difficult I think.
RSS parts I found somebody in the UK who is selling these.
Are these gmg sway bars noticable compared with the standard front and GT2 rear bar on the stock suspension?
I already have a shwarkwerks center bypass .

I bought BBS E88's but didn't buy any rubber yet, tips?

Thanks! Great advice.

That I already did, after they were trashed only after 3000km

Grazie.

Thanks again!

DC640

Pm GTgear about LSD.. Shipping won't be that bad to Italy via USPS. Package is very small (size of 6 of you fist) but you must find a shop that knows gt cars to replace the LSD internals.

CAlexio

after reading these posts, I'm starting to think that just doing basic track days in a stock gt3 is going to be massively expensive. the more I'm learning as a porsche newbie... the more scared I get.

TRAKCAR

I don't see anything expensive above?
You are paying $8.00 per per gallon of gas. That is expensive....

mooty

gt3 is very $$$

tcsracing1

i have done it all and back again.


Get yourself a new LSD. (Either Cup or Guard cause yours is long gone)
SRF brake fluid and decent brake pads
Delete the two side mufflers to remove heat and bulk. (M&M)
Install 996 cup shifter cables to firm up the shifting action.
Get yourself a set of rear toe links to lock in your alignment for longer peroids of time.
Have a decent shop give you a corner balance and track alignment to feel the grip work for you.

Eventually you will also want to install wheel studs and calliper studs.

If you wanna make alignments more precise, remove mushy rubber bits and hold longer feel free to get suspension parts listed in my signature.....