AMG ETR

100% think so, that was my point. No one has mentioned drivers in this thread talking about beating different cars.... Facts are facts, the same model car with more HP(similar HP and Tq curves) and similar weight is faster if both are piloted by perfect drivers on a perfect day.... Therefore my conclusion would be that a stage 2 should BEAT (not crush) an X50..
Just MHO
Evan
PS- Tim, that level 4 car only made around 20 more HP than my level 2 BTW, so it might not have been driver error

TestnDoc

Evan,

Is your ECU software GIAC? If not what is it, and why would one choose it over GIAC?? Im looking to upgrade my ECU, and trying to educate myself. Thanks!

AMG ETR

Hi TestnDoc,
My software is FVD level 2. I have had the GIAC level 2 in my car as well though in the past. I have never had a problem with either and both run good.
I dynoed with both:
GIAC Level 2 w/ Fabspeed Exhaust=449RWHP (1.1BAR)
FVD Level 2 w/FVD Exhaust=468RWHP (0.9BAR)
I do not want to compare them beyond that as I work for one of the company's and that is not fair. The one thing I do like about our chip is how much power it makes at such low boost.
Evan

aj02996tt

No, that was extrapolated by the dyno. . .one was about 430awhp, other was just under 460. I saw one non X50 put down 405awhp. . .bottom line is dynos don't seem to be too consistent. It would be great to line up some cars and run them on the same dyno.

When I get a weekend off, I plan to make arrangements with Stephen to drive up for some dyno pulls and prob. pick up some goodies while there. I'll post what we find. I'm leaning to the 550 or 600hp package, as they seem pretty safe with stock internals, and Stephen/Todd warranty their work. Ruf is down the street from me but I find their pricing frankly insulting.

Dock

Using Stephen is a great call, as is the 550 or 600 package. You shouldn't have any problems.

While I don't think "street racing" is very safe, there are times when a side by side pull between two cars can be revealing. I'd like to line up my Stage 2 with an X50 sometime for a *safe* 2nd gear pull to the legal speed limit (or a touch higher).

1AS

Wouldn't that be about a 2 second race? I think that he who gets his foot down first wins. AS

Dock

Something around 20 mph to ~80 mph should be enough to see which car is faster.

If there is more than one run, the "who went WOT first wins" factor can be minimized.

1AS

OK. If you make it to the Chicago area, let me know. If your are just flying thru, you can try mine. I'd be interested in your thoughts. AS

Dock

Thanks.

And if you get through Atlanta I'd like you drive the "Torque Monster" and let me know what you think.

greg schroeder

Here's a Gs graph I made a while back. It will display which car pulls hardest and were. All of the information is accurate with calibrated testing units. In the graph the black and green lines are relevant to this discussion. The black line is a stock 2003 996tt X50. The green line is a base 996tt with a stage one chip. Ignore the lightly modified 1993 FD(Rx-7) and stock 2003 Z06.

The graph represents a mph range between about 45 and 100.

nash

The Ruf packages are definitely pricey. The problem is that all their packages include their modified K24 turbos, so a turbo swap is required. The whole reason I bought an X50 car was so that I could simply chip/exhaust it, and not do a turbo swap. Not that there's anything wrong with a turbo swap (I did one in my S4 and love it), but I wanted to keep the mods simple on this car. It's hard to justify $25,000 for Ruf versus $7-9k for a chip/exhaust package from someone like IA for similar performance. Maybe Ruf would have a bit of a power edge, but is that worth the additional $18,000? Both are highly reputable tuners, too.

If you get some ImagineAuto goodies on your S, I'd love to go for a ride to feel the difference. I'm pretty sure I'll be going that route in a few months

TestnDoc

The turboS essentially has the X50 engine, with k24 turbos...isnt this correct???

greg schroeder

Yes, the Turbo S and X50 both have the K24 turbos and the similar boost. It does seem to be the case here in Scottsdale, AZ in the winter they put about 370 to 385 hp to a dynodynamics dyno. The base 996 turbo puts down about 350 to 360, stock.

BobbyC

The Turbo S has a bit more low-end torque than the earlier X50's plus a strengthened tranny + less unsprung weight for a marginally improved power/weight ratio = slightly quicker than the standard X50.

Dock

I thought the X50 also had the strengthened tranny.