Red9

Not water cooled-- definately air cooled. Engine is based on normal 993 TT engine .

WHB Porsche

Better known as oil coolers, I beleive.

Jean

Taking the Supercup races as a benchmark of what is going REAL fast in a Porsche, here are some comparable times in the Roock 993GT2s:

Monza:
Roock GT2 (1999): 1.47.8 s
Supercup lap record (2005): 1.55.1s (Alzen)
997 RSR (2007): 1.52.2 (Collard)

Silverstone:
Roock GT2 (1999): 1.50.6s
Supercup lap record (2006): 1.53.7 (Alzen)
997 RSR (2007): 1.50.9

For a US track reference: Mosport : 1.25.9

A Supercup driver typically is faster during a Supercup race day by about 10-12 seconds on certain tracks in a 997 Supercup vs. the same driver in a 997GT3.

This car could be chassis number: 0480053 or 043005 ...they had a special VIN.

Red 9 yes I sold my sequential gearbox a while ago already as I turned my car to become more street friendly.

Geoffrey

Jean,

For reference, the PCA track records for Mosport are:

997 Cup 1:23.9
996 Cup :26.0
GT3RS 1:24.9

These are club guy. I'm not aware of a second track configuration at Mosport.

Jean

Geoffrey

You are right, my time is wrong, I have just checked, and in one occasion (ALMS 2000) this Roock car did 1.22.5s in the hands of Vic Rice during a qualifying session, this is not a stellar time but one that I could find, the car ended 14th. that day. I am sure in the hands of someone more experienced with Porsche cars this time would have been beaten.

Another US track lap time:

Roock 993GT2 Daytona 1999 test: 1.49.5s
Fastest I have seen in PCA in 2007 was 1.53. (not sure if this is lap record)

At the time the AJR and TRG teams in 996RSRs were running 1.52s-1.55s

Geoffrey

The PCA track record for Daytona in a 996GT3RS is 1:49.9 at Daytona and Jim Ellis did a 1:52.4 in a standard 993GT2. Leh Keen did a 1:47.8 in his 996GT3RSR at Rennsport Reunion. Don't forget that Grand Am has been cripling the GT cars so as to have a performance difference between the GT class and the DP class. Plus, the spec Hoosier tires are a hard compound tire.

Greg A

Geoffrey,

You mean John Ellis, right? I don't think his old GT2 was standard and his new car that he's had for a few years is a '99 GT2 Evo. He co-drives with BJ Zacharias quite frequently. Are you certain John did that time and not BJ?

Greg A

Geoffrey

Yea, I don't know why I put Jim instead of John. I don't know who was driving when the fastest lap was recorded, I don't think PCA tracks that, only who the car number is registered to. I would assume that any GT2 car that is raced in PCA is in modified form, not standard form which would be required to compete against the built up turbo cars.

Jean

Geoffrey

Leh Keen's 1.49.9 is an exception, the usual race and qualifying times for top teams in 996 and 997 Cup and RSRs seem to be in the 1.53-1.54 on average for Grand Am, with circa 1.52 as the best out there ( 2-3 seconds slower than this old 600HP Roock). The point I am trying to make is that this car is still a monster by today's standards.

If Leh had been driving this Roock, I would not be surprised to see another 1-2 seconds knocked down.

As far as John Ellis's EVO, that is a very fast time, but at par with Konrad's and other EVOs of the time, there are no 1999 GT2 EVOs to the best of my knowledge, any additional info on Ellis' car?

There are many very fast aircooled 911s out there that can beat track records (Levitas's 1990 993 "GT2" for one) but they usually are much lighter than this Roock and I doubt they would last a 24 hour race.

In any case this Roock Rocks!

Rassel

Endurance trim and they'll be slower. Not to mention fuel consumption and the current regulations for Turbo cars..

JJayB

Jean,
I seem to reacall that the factory built two versions of the Evo, one for FIA GT and the other ACO (LeMans series) My point is that some ran with restirctors which makes it difficult to come one model to another in different years.
Unrestricted I belive that Alwin Springer (PMS) told me that they were over 600 hp and the 3.8's had gobs more torque but with the hugh 14" slicks were tough on transmissions. In the restrictor series they were no match for the Vipers who had some preferential rule advantage which porsche didn't contest due to the fact the 993 was out of production.

Some of the engine builders felt that the 3.6 was as fast on the long tracks top end but lacked the torque of the 3.8. Not all EVO's were 3.8's so it gets a little confusing as to which lap times were run as 3.6's, 3.8's restricted and unrestircted. In the end an unrestricted 3.8 as the pictured Roock car would liker be a bit quicker than the current RSRs.
Jimmy

Geoffrey

Jean, to be fair, I think that both of Leh's cars (996GT3RS and 996GT3RSR) were/are running unrestricted and on soft tires (compared to Grand Am Hoosiers) which probably accounts for the difference in lap time you see. I would imagine that the Roock car at the time was restricted in some form. Definately a cool looking car and top tier of its time.

ploglet

that is one gorgeous car.

Jean

JJayB, I agree with you, your information is similar to mine..

Geoffrey
I believe this 3.8 runs in unrestricted form at 600 HP and 1.25 Bar. For 24h. races they took boost down to 0.9 Bar maximum, running at 0.7 most of the time. This information comes however from Franz Konrad who ran a similar engine to this one in the factory '98 3.8 GT2 EVO that he still owns, so I am not sure it is exactly the same as this one.

There are a few 993 GT2 EVOs in Europe still running in some gentlemen driver race events and that remain untouchable against Vipers, Ferraris and other race cars, most of these GT2 cars are ex-competition cars that are still maintained by the likes of Almeras, RS Tuning and other racing names and driven by ex-pros or club racers. Here are a couple of pictures for the fun.




Here is an RS Tuning GT2 EVO



Some of the competition that they manage to beat..650 BHP GT2Rs



This in particular is managed by http://www.clubeuropa.fr/ and anyone can participate. The events are later broadcasted on Motors TV (equivalent of Speed TV in the US).

Here is one video that is not very hardcore but shows the spirit..
http://www.onetrack.ch/player/dijon06.php
http://www.onetrack.ch/player/barcelone06.php
There are other videos on the site.

This Roock would do wonders there!

TB993tt

The Almeras Freres -that is a name from the past !


In the early '90's they were one of the very first "tuners" to surface for road Porsches (along with Ruf and Kremer) and produced some "interesting" turbo cars.

Almeras and Ruf were the only "tuners" who offered anything for the then new 964 series -I had already tried the Ruf offerings (98 octane chip and cup exhaust pipe) and was tempted by more.
Almeras advertised their own "kit" with cams, exhaust and Motronic....

1 Month later my '91 964 C2 rolled out of their workshop based near Montpellier in SW France.
The engine was timed up and tuned on their engine dyno for ~300hp

This was a formative lesson in tuning which helped shape my current er.....knowledge and "reserve" of tuners and their offerings

The car was a lumpy monster with a virtual straight through exhaust -its noise and temperament made it bearable for only 100 miles - my girlfriend of the time threatened to take a plane home as we droned northwards along the autoroutes

I ended up putting it back to stock and was "interested" to see some of the tuning tricks of the day -like an araldited (sp - the glue !!) fuel pressure regulator !

Almeras brothers never really did much after the air cooled stuff and their "road tuning" never caught on much outside their local area