BuddyG

Does your tuner and his wife look like this?

ps: That's my car they were helping out with.

Rassel

What's that left on the ground of the left jackstand?

ttAmerica RoadsterAWD

Looks like screw drivers?? Yes, that's Cynthia and the background is not his shop. I just visited him 6 days ago. He installed my Ruf cams. Cynthia is the engine builder...they make a great team!

BTW, this time around in california I met some very heavy shop speaking females with lots of knowledge on engines/specs! What happened?? I was surprised (not trying to be a male chauvanist pig), but went to WebCam and the women in the front office (taking calls, apt. etc.) were very much knowlegeable on cam profiles/applications/and general peripheral motorhead info!.....AND they were sexy!!!!

Jaime

Rassel

We just gotta throw in the towel or do something radical. Soon they'll be blowing kisses at the same time they pass us on the track..

BuddyG

No, that is not his shop this was at GIAC in California during the European Car Shootout. We had some problems with my car and they were helping out, they are great people!

LAT

Buddy, what issue can I find the results of the shoot out in?

BuddyG

By the way the night before the magazine came to do the dyno testing was when my car put 586 hp at all four wheels down on a Mustang dyno. That was higher than the Protomotive car. When the next day rolled around for the magazine article we had a hose blow off during our dyno run and only made like 522 hp at all four.

Doug H

Why is 60 - 130 the measure of "real performance." I am more interested in 0 - 100 as that is the range I drive in (or at least admit to driving in) and I was surprised to hear about the Ruf suspension. Are they that bad. Why did they not fare better on track or are these Ring times whacked out. I mean the CTR was about same time as 996 C4S. What is up with that?

I put the 355 in there because my 355 with Capristo and filter feels slow to me compared to my other cars, but it actually did pretty well around the Ring.

20,832 km 7,56 = 157 km/h Porsche 996 GT3 360 ps, Walther Röhrl 2000.
20,832 km 7,56 = 157 km/h Porsche 996 Turbo 420 ps 2000.
20,832 km 7,57 = 157 km/h Lotec Porsche 993 Turbo 600 ps.
20,832 km 8,02 = 155 km/h 911 Roock Turbo RST 480, 480 ps, Sport Auto.
20,600 km 8,03 = 154 km/h 996 GT3, Sport Auto.
20,832 km 8,09 = 153 km/h Porsche 993 GT2 430 ps.
20,832 km 8,12 = 152 km/h Porsche 993 Turbo S 432 ps, 1998.
20,832 km 8,12 = 152 km/h Porsche 993 Turbo 408 ps, 1997.
20,832 km 8,13 = 152 km/h Ferrari F355 380 ps.
20,832 km 8,15 = 151 km/h Ruf CTR 2 993 520 ps, Stefan Roser.
20,832 km 8,15 = 151 km/h Ruf CTR 911 469 ps, Stefan Roser.
20,832 km 8,15 = 151 km/h Porsche 964 RS 260 ps.
20,832 km 8,16 = 151 km/h Porsche 996 Carrera 4S 320 ps, Porsche test drivers 2001.

Bill S.

It's too hard for us to compare times from a stop since everyone launches their car differently. Timing as the speedo swings past 60 and 130 is easy and accurate.

I suppose we can do 60 to 100 or something, but you'll find most of these cars within a second of each other in that low range. 60 to 130 really shows the power difference. For example, a stock CS, GT2, GT3, 993TT and 996TT are nearly identical under 80, but over 80 the GT2 starts to pull noticeably.

BTW, I like 60 to 150 better, but that's not practical nor safe for most of us.

sharkster

The only real peformance numbers I have are 1/4mile runs and 0-60s with timeslips and videos.

I've run as fast a 10.97 in the 1/4mile and trapped 127.8mph. My best 0-60 was 2.95 on that same 10.97 1/4mile.

These were all done on low boost last year. I'm getting my car back monday so I'll see what she does now with higher boost

Doug H

Kind of sounds like you just cherry pick a single specific category that may best suit a particular car with particular gearing, particular weight, and power range. Gearing may be a big deal.

I think the best way to measure "real performance" is to evaluate the performance over a broad spectrum of categories. Besides, it is not like it is that difficult to launch a car consistently or evaluate 1/4 miles taking into consdieration trap speed, reaction time, 60 foot or whatever.

Bill S.

You're right. These cars, like most European sports cars, are designed to go fast in the 60 to 130 and higher range. Not 1/4-mile or 0-60. 60 to 130 is a good comparison because it shows how your car will perform at a typical track or street encounter, at least in So Cal. If you're under 100 most of the time and racing between stop signs or doing 1/4-mile runs, 60 to 130 would not be all that meaningful to you.

Nevertheless, these 60 to 130 comparisons make it easy to compare acceleration on cars like these (i.e., Turbo Porsches) with most of the driver's skill taken out of the equation. It also provides minimal stress on the car. You could do these runs all day and not damage your car.

Jean

AFAIK we all have stock gearing. I am not putting my car on a drag strip for this test, our cars can brake axles, clutch and bend gear shafts if launched from 0. Furthermore, many of us have stiff suspension for the track or don't have skills to do a good launch..too many variables. Many of us don't have drag strips. I don't like this test as it catches my modified car off-boost big time, but I agree that it is very convenient.

The fundamental part is that this test is supposed to give you, the one who paid money to build your engine, satisfaction whether your tuner has done a good job, and not to please anyone else, at least that is how I see it. If I see that a 430PS factory 993TT beats my time, I would be concerned.

sharkster

hehe Jean do you know that my car is set up for the road course? We're talking double adjustable JRZs with 1200 pound rear springs, GT3Rs links through out and solid monoballs EVERYWHERE... My car is so far from drag race ready but I have bent two drive shafts

TB993tt

If on that run you did 60 in 2.95s then finished at 128mph in 10.97s then your 60-128mph time is 8.02s - correct ? How much power were you guessing for that run ?

Regarding the 60-130mph - For me the best measure would be 200-300kph or 124mph to 186mph, at these speeds real power can be seen and there would be some interesting differences with hoses blowing off and heat soak doing its thing
A Carrera GT does 200 - 300kph in 23.5s
RS Tuning GT2 542PS 1440kg took 17.8s
RS Tuning 993tt 533PS 1500kg took 15.6s
There are not that many 200-300 available, but check out the bible: http://www.einszweidrei.de/