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-   -   Trackrat's GT3RS Project (http://gt2gt3cup.org/showthread.php?t=79)

Trackrat 03-31-2011 11:02 AM

Trackrat's GT3RS Project
 
5 Attachment(s)
Ok, the "Grand Announcement" is at hand. Been busy on the off-season diving head first down the slippery slope.

Recipe:
2010 GT3RS, 10,000 miles, 50% Track/50% Street

GTGears LSD Internals

Akrapovic Evolution System converted from full (w/side mufflers) to Race configuration (via two side pipes).

Intrax 4-way coilovers. Application specific tuning by Intrax

Tarett Engineering solid bits- monoballs/spherical ends/toe-locking plates/etc

Custom designed/engineered threaded and thread-locked/sealed coolant fittings.

Racetech Magnum 6-point HANS specific drivers harness.

New spark plugs- so much easier with engine out although the ones in there looked perfect.

Separate engine/trans and examined clutch. Looking good!

Full OE Clubsport cage with welded plates top and bottom.

Stripped Interior.

RennLine floor mats

Sullivan Racing Pedals

996 Cup Shifter Cable and solid cable ends.

MovIt custom brake kit: Oversized Carbon Silicon Carbide rotors, billet high strength calipers and braided steel lines are in progress and hope to be shipped/installed in 2-3 months.

Works Bell quick release (GT3 specific, bolts right up) steering wheel with "Personal" (it is a brand) steering wheel.

Some pics below with more to come. All work was done in my shop with the assistance of Jess Lattin, a Master Technician with eight years of Porsche experience. He is a super-sharp cookie and excellent on the details.

Brief road test of approx 2 miles revealed no issues and a well controlled and compliant ride. Track testing this weekend.

I suppose I am 8/10th's or 9/10th's driver that wanted to play with the limits of building a street legal track oriented car. For me going full Cup car was not attractive due to engine/tranny rebuilds, not street legal, and more of an involved process to run it aside from just turning the key and driving off.

Link to photo album with more pics: http://www.gt2gt3cup.org/album.php?albumid=13

TRAKCAR 03-31-2011 02:44 PM

Re: Trackrat's GT3RS Project
 
When people yell restraint at you they don't always mean seat belts LOL.

Awesome Savy!

FTS 03-31-2011 04:00 PM

Re: Trackrat's GT3RS Project
 
I am so jealous of your phenomenal projects Pete. I also have so many questions on the Intrax choice and the brakes of course. Can you capture the sound of the Akrapovic exhaust by any chance?

I hope videos are coming soon too, right? :D

So, now that I could digest some of this... just amazing...

I hadn't heard of "movIt," how did you come up with that one?

4-way shocks is going to be a handful. I think generally they are more than impressive and give truly the fine tuning capability, especially from track to track. Any particular reason you chose Intrax? Also, did you get their camber plates or their solid top mounts?

You, of course, have to give us more details on "Custom designed/engineered threaded and thread-locked/sealed coolant fittings." :)

Just woww, I know you were doing some projects, but this is some undertaking ;)

mooty 03-31-2011 11:51 PM

Re: Trackrat's GT3RS Project
 
very nice.
can't wait to see it in person soon

Trackrat 04-01-2011 09:38 AM

Re: Trackrat's GT3RS Project
 
2 Attachment(s)
Quote:

Originally Posted by TRAKCAR (Post 474)
When people yell retraint at you they don't always mean seat belts LOL.

Awesome Savy!

Peter- Sadly, this is true :-(( Thankfully both Spyder and now GT3RS have reached the limits of what I wanted to tweak and I can relax and drive for the next few years.

Quote:

Originally Posted by FTS (Post 478)
I am so jealous of your phenomenal projects Pete. I also have so many questions on the Intrax choice and the brakes of course. Can you capture the sound of the Akrapovic exhaust by any chance?

I hope videos are coming soon too, right? :D

So, now that I could digest some of this... just amazing...

I hadn't heard of "movIt," how did you come up with that one?

4-way shocks is going to be a handful. I think generally they are more than impressive and give truly the fine tuning capability, especially from track to track. Any particular reason you chose Intrax? Also, did you get their camber plates or their solid top mounts?

You, of course, have to give us more details on "Custom designed/engineered threaded and thread-locked/sealed coolant fittings." :)

Just woww, I know you were doing some projects, but this is some undertaking ;)

Fatih- Sure I will post more pics and some video clips as the projects wraps-up. The sound is of course phenomenal. Going to try and put the DB meter on it Saturday but I am guessing 106-108 db at WOT at 100'. It is pretty authoritative.

Intrax- I went through months of decision making process to settle on a suspension replacement. Intrax has a LOT of shock building experience, and their philosophy, which I share, is soft springing and control the motion via dampening. The company owner races GT3's. They come with some lovely beefy camber plates but they are not accessible from above for adjustment (unless we installed them wrong :D) due to RS shock tower design.

MovIt is the only other source of ceramic rotors aside from Brembo and they are much more durable than OE ceramics. In fact they are marketed to last from one car to another! Their calipers take twice the brake pressure before deformation (beveled pads) vs.the OE calipers. I was pissed off from worn out ceramic rotors and beveled pads and wanted a superior solution. We shall see if this is it.

Me, Jess, Adam (CarreraGT), a skilled local welder and a skilled machine shop put heads together to come up with the coolant fitting fix. It took weeks of back and forth and multiple iterations of fitting design to reach where I am now and there is still some room to perfect the solution. Aside from the mechanical connection, I researched and located (available one place in the US) an industrial threadlocker/sealer good up to 700 degrees F before degradation. And the stuff get harder with exposure to Ethylene Glycol :-)(

Quote:

Originally Posted by mooty (Post 481)
very nice.
can't wait to see it in person soon

Thanks John- hopefully in a few weeks.

FTS 04-01-2011 09:57 AM

Re: Trackrat's GT3RS Project
 
I love how the brakes look, I sure hope they perform to expectations, they look like they will :)

I assume the camber plates pushed the ride height up a little, and you probably had to adjusted back down accordingly. As long as you can achieve the camber you need through the control arms, that should not be an issue.

The way the threaded sleeves look for the coolant lines is just amazing, first-rate craftsmanship. I wonder if you will be able to market those; I am first in line, if you do :D

TRAKCAR 04-01-2011 04:08 PM

Re: Trackrat's GT3RS Project
 
Pete; Can't wait to hear your findings! Going to be a big draw to site!

John; You really can't sneak out of the Kingdom for a couple of sessions Sebring? Your car will be all setup for it :-). Just drig them all they'll never know :-DDD
I maybe I can make it the 10th. I'm flying in late the 9th. so I can throw some unshaved toyo's on and beeline it to Sebring..

Fatih, I am going to be travelling for fun and work like crazy untill last week in April so meager contributions till then, but I will do my best.

Trackrat 04-02-2011 09:50 PM

Re: Trackrat's GT3RS Project
 
5 Attachment(s)
Just had a phenomenal day at Reno Fernley Raceway, C Config (includes "The Peanut"!) testing all the project mods. RaceTech halo seat didn't make it into the car. I just could not get a fit I was happy with and popped the OE seats back in. Can't believe the transformation to the car :eek: The Intrax coilovers were superb out of the box. Response and driving dynamics were razor sharp.

The OE suspension is great but this is on another planet. Due to the bumpy track I softened the rear shocks compression and rebound a bit but otherwise it was great. Front sway was on middle hole, rear blade was 2 back from full stiff.

Very neutral everywhere: fast, slow, bumpy, smooth. Throttle steer was very responsive.

Of course the Akrapovic Race exhaust config was intoxicating especially at 8400 rpm.

Video later, here are some pics.

This was a SCCA TT and PDX day. High-Desert tracking at its finest, look at that elevation change of the track! Enjoy...

Trackrat 04-02-2011 09:59 PM

Re: Trackrat's GT3RS Project
 
5 Attachment(s)
More pics. Man, what a great day!

FTS 04-02-2011 10:39 PM

Re: Trackrat's GT3RS Project
 
The car (and driver of course) look awesome!!! On the second picture in the second set of pictures, were you countersteering because you over trail-braked or something? Great shot, just could not make the angle of the steering ;)

So, how did you do on the time sheets, I saw you had a transponder on the rear of the car?

TRAKCAR 04-03-2011 07:36 AM

Re: Trackrat's GT3RS Project
 
Pete; Awesome :-DD

The car looks so sneakily OEM, very stealthy :-DDD

You're not even mentioning the brakes, are the a non issue now?
What pads do you use, Movit? What material and shape?

Trackrat 04-04-2011 09:20 AM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by FTS (Post 487)
The car (and driver of course) look awesome!!! On the second picture in the second set of pictures, were you countersteering because you over trail-braked or something? Great shot, just could not make the angle of the steering ;)

So, how did you do on the time sheets, I saw you had a transponder on the rear of the car?

No counter steering in that photo, I need to upload to the gallery as the forum is compressing the image too much and distorting them.

I ran 3rd behind a local national shifter kart champion driving a GT-R who is a very good driver (all-wheel drive turbo at 5500' altitude=GT3 killer) and am Ultima Can-Am on slicks. So with a new suspension with three-clicks change on rear shocks I cannot complain ;)

Quote:

Originally Posted by TRAKCAR (Post 490)
Pete; Awesome :-DD

The car looks so sneakily OEM, very stealthy :-DDD

You're not even mentioning the brakes, are the a non issue now?
What pads do you use, Movit? What material and shape?

The kit for the GT3RS has not yet arrived :( That comment may have not been emphasized enough in my initial post. A full kit on the Spyder, and MovIt rotors only installed on the GT2RS as a stop-gap measure. Moved GT2RS brakes over to the 3RS until the kit arrives.

Also I battled mightily to get the RaceTech halo seat installed but it just was not meant to happen :beatinghead: After $$ building various brackets I can't make it fit the way I want it to and it is going up for sale. Argh.

Ok, here is some video :D Rear cam is out of focus as we installed a new lens and did not have time to focus it (fixed now though)


http://www.youtube.com/watch?v=PVy8OT9RWIk

Here is the Ultima just after he ran his best lap...chasing me down :-)( Watch front cam and then the blurry rear cam.

http://www.youtube.com/watch?v=ZnCxLV6_xEM

TRAKCAR 04-04-2011 09:38 AM

Re: Trackrat's GT3RS Project
 
Man, the cars sounds so cool.. Racey!
So, the Movid rotors are direct replacement for OEM PCCB??

Thanks for posting :pals:

Trackrat 04-04-2011 09:50 AM

Re: Trackrat's GT3RS Project
 
MovIt makes direct PCCB rotor replacement$ which are different from what they will supply in kit. No track on the new rotors yet but I will of course post a new topic when that happens to report.

You are welcome ! :pals:

PS- the new Personal (brand) alcantara steering wheel, slightly smaller diameter than stock was great. I am so happy with how the car performed.
PSS- we are getting ready to tackle a .1 GT3 coolant fitting fix in my shop this week. Will also post a separate thread on that.

FTS 04-07-2011 09:28 PM

Re: Trackrat's GT3RS Project
 
Pete what kind of cameras are you using? They don't seem to adjust to ambient light fast enough and hard to see clearly. I love the top video though, nice driving.

FFaust 04-14-2011 10:30 PM

Re: Trackrat's GT3RS Project
 
Ha Pete, found you :D

So this is where you've been hiding.

Anyway, great thread and great to see that you haven't slowed down ;)

911SLOW 04-15-2011 09:08 AM

Re: Trackrat's GT3RS Project
 
If you want my honest opinion, modding a GT3 is a waste of time and money.
These cars are fine from the factory and can be driven flat out if you have the latest (and most expensive) driving suit and fireproof underwear. :D

Trackrat 04-15-2011 02:21 PM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by FTS (Post 545)
Pete what kind of cameras are you using? They don't seem to adjust to ambient light fast enough and hard to see clearly. I love the top video though, nice driving.

Hi Fatih, these are the cameras supplied by RaceKeeper. I might need to get their comment on the condition of the cameras. Perhaps one is defective?

Quote:

Originally Posted by FFaust (Post 635)
Ha Pete, found you :D

So this is where you've been hiding.

Anyway, great thread and great to see that you haven't slowed down ;)

You found me Francois! No slowing yet...whew...

Quote:

Originally Posted by 911SLOW (Post 636)
If you want my honest opinion, modding a GT3 is a waste of time and money.
These cars are fine from the factory and can be driven flat out if you have the latest (and most expensive) driving suit and fireproof underwear. :D

Lol...what if you combine a modded car with the fancy pants and driving suit John?? :pals:

911SLOW 04-15-2011 02:47 PM

Re: Trackrat's GT3RS Project
 
Fancy pants? Hmmm.. That would be Peter.. No? ;)



Your car looks great as always. Hope you are having fun with the mods..
you know that the end result is just a detail.. it's the journey that counts more.



Guys as a side note, I wish you all the best for the new site! I see a lot of friends here and I am sure that it would be a great place.
I would like to thank Fatih for his invitation and kind words.
Most of you know that apart from rennlist I do not participate in any other site..not even facebook :D
The fact that I had to join PCA just to be able to meet you fine gentlemen (and ladies? ) here says it all.

Best

John

FTS 04-15-2011 02:51 PM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by 911SLOW (Post 638)
Guys as a side note, I wish you all the best for the new site! I see a lot of friends here and I am sure that it would be a great place.
I would like to thank Fatih for his invitation and kind words.
Most of you know that apart from rennlist I do not participate in any other site..not even facebook :D
The fact that I had to join PCA just to be able to meet you fine gentlemen (and ladies? ) here says it all.

Best

John

John, you are a highly respected person and we are fortunate that you joined our community, thank you and we're looking forward to becoming operational and adding value to the overarching GT community.

Cheers,

Trackrat 04-15-2011 11:42 PM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by FTS (Post 639)
John, you are a highly respected person and we are fortunate that you joined our community, thank you and we're looking forward to becoming operational and adding value to the overarching GT community.

Cheers,

I second those thoughts. Welcome John!

ZellamSee 04-16-2011 04:38 PM

Re: Trackrat's GT3RS Project
 
Pete -- thanks for the hot laps @ Thunderhill a couple of days ago -- the car is dialed-in for sure! Great seeing you. Pete

Trackrat 04-23-2011 12:53 PM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by ZellamSee (Post 647)
Pete -- thanks for the hot laps @ Thunderhill a couple of days ago -- the car is dialed-in for sure! Great seeing you. Pete

Hi Pete- great to see you again and you were looking fast and smooth! :D

I will be swapping the MovIt rotors off the 2RS onto the 3RS for the GG PCA TT/DE this upcoming weekend. In combo with the new suspension it should be big fun with durable brakes! Separate post here on the forums regarding the testing over the past couple days.

stujelly 04-24-2011 10:57 PM

Re: Trackrat's GT3RS Project
 
I have been following you on rennlist for a while. I am jeolous you get so much track time.

Just curious, I have not seen a pic of your 3rs lately but what wheel and tire combo are you running? Not sure if this is the place to start the whole 19 v 18 debate so i want to be part of the solution and not part of the problem.

Thanks buddy.

Trackrat 04-25-2011 09:55 PM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by stujelly (Post 825)
I have been following you on rennlist for a while. I am jeolous you get so much track time.

Just curious, I have not seen a pic of your 3rs lately but what wheel and tire combo are you running? Not sure if this is the place to start the whole 19 v 18 debate so i want to be part of the solution and not part of the problem.

Thanks buddy.

Hi Stu, glad you found me here :pals:

So as to keep my variables and problems to a minimum I have kept stock wheel sizing/tire sizing/offsets.

Yes it limits my tire choices a bit, but I have yet to have an "Ice Pedal" or any other issues possibly related to these changes. I am sure many folks are happy running 18"'s and I don't mean to imply that is a bad decision at all.

My favorite combo for any of my cars is the Forged Alloy USA lightened wheels and Pirelli Trofeo tires.

It must be said that me and others have had some really awful experience with the purchase and delivery of the Forged Alloy USA wheels and I cannot currently in good conscience recommend anyone try to buy them. The wheels themselves have been great once the delivery/sizing/offset issues are resolved.

I think Vorsteiner currently offers a compelling value in design and light weight and strength and I have ordered a set for my Cayenne.

CWS 04-26-2011 08:57 AM

Re: Trackrat's GT3RS Project
 
Very nice Pete but I think you're sandbagging a bit on the changes, no?

Trackrat 04-27-2011 05:10 PM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by CWS (Post 940)
Very nice Pete but I think you're sandbagging a bit on the changes, no?

Not on purpose? Likely forgot something. Ask and I shall tell! :p

CWS 04-29-2011 09:43 AM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by Trackrat (Post 1041)
Not on purpose? Likely forgot something. Ask and I shall tell! :p

Maybe some trick suspenny mods and slightly enhanced diff? Not that I have any inside knowledge ;)

tcsracing1 05-28-2011 07:40 PM

Re: Trackrat's GT3RS Project
 
great build. I have done the same except on a 997.1RS.

now that you have full cage you should drag the car to Targa Newfoundland for a whole different experience. :)

Trackrat 06-05-2011 09:45 AM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by CWS (Post 1139)
Maybe some trick suspenny mods and slightly enhanced diff? Not that I have any inside knowledge ;)

Ah- I listed only what I did over the winter, not what I did previous. Just edited the original post. Think that is all but I may have forgotten something

FTS 06-05-2011 10:19 AM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by tcsracing1 (Post 2116)
great build. I have done the same except on a 997.1RS.

now that you have full cage you should drag the car to Targa Newfoundland for a whole different experience. :)

Pete, this is really not a bad idea. It would be such an adventure ;)

raysmd 06-05-2011 04:24 PM

Re: Trackrat's GT3RS Project
 
What are the issues with the tech110s? I'm thinking about getting a set.

mooty 06-05-2011 08:53 PM

Re: Trackrat's GT3RS Project
 
Quote:

Originally Posted by raysmd (Post 2253)
What are the issues with the tech110s? I'm thinking about getting a set.

you order spec A, you get spec B... they gladly change it, and ship you spec C.. .they change again, send you five lug wheels when you have 997.2GT3 which is center lock....

my money goes to BBS motorsport or forgeline or HRE

stujelly 06-06-2011 10:25 AM

Re: Trackrat's GT3RS Project
 
Me and 3 others with the .2rs have had great luck with factory wheels. A little pricey for the second and third sets but like pete said above, one less variable to deal with.


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