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YOUR RESEARCHDyno'ed my RWD '03 C4S today; results (996 911 Porsche)
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Run 2 front 3 rear
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Suggestion · Original poster
- brand new PSS10s <------ great, ride quality much improved, but does not lower car much (adjustable makes it soo worth it; I run 2 front 3 rear on the street (terrible roads) 6f 8r on short tracks like poconos north and 8f 10r on big smooth ones like watkins glen, but I could see wanting more spring in the rear if I was on R compounds and really, really serious)
Dyno'ed my RWD '03 C4S today; results (996 911 Porsche)
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Leading evidence: 'Run 2 front 3 rear' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run 2 front 3 rear' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
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Suggestion · Original poster
-RSS underdrive pulley <---- seriously awesome, all accessories run more quietly now, I swear the car revs faster
Dyno'ed my RWD '03 C4S today; results (996 911 Porsche)
Frequently discussed actions (2)
These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.
Run 2 front 3 rear
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
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Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion · Original poster
- brand new PSS10s <------ great, ride quality much improved, but does not lower car much (adjustable makes it soo worth it; I run 2 front 3 rear on the street (terrible roads) 6f 8r on short tracks like poconos north and 8f 10r on big smooth ones like watkins glen, but I could see wanting more spring in the rear if I was on R compounds and really, really serious)
Dyno'ed my RWD '03 C4S today; results (996 911 Porsche)
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3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
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Mostly copy and pasting from my 6speed post, but I thought this might be interesting for some people:
2003 4S coupe 6 spd with 60k miles
-converted to RWD (I don't drive the car is winter, drops 80 lbs, gains 12whp and 10wtq)
-removed spare and all tools
-Odyssey PC950 20lb lightweight battery
-997 gt3 throttle body <--- awesome
-idp 82mm comp plenum
-bc drop in filter
-evoms stage 3 tune <--- great
-RSS underdrive pulley <---- seriously awesome, all accessories run more quietly now, I swear the car revs faster
-fabspeed cup exhaust
- brand new PSS10s <------ great, ride quality much improved, but does not lower car much (adjustable makes it soo worth it; I run 2 front 3 rear on the street (terrible roads) 6f 8r on short tracks like poconos north and 8f 10r on big smooth ones like watkins glen, but I could see wanting more spring in the rear if I was on R compounds and really, really serious)
Unfortunately, I did not get to dyno the car when it was stock when I bought it, but it feels almost completely different now, was really hoping for 290whp and 3200 lbs.
Car dyno'ed 293 whp and 252wft/lbs this morning. It was 70*F, with 95% humidity (was literally raining). Considering this was on original spark plugs, 32 lb rear wheels and with my 4S transmission, I am super pumped. Did not unfortunately get to weigh the car.
And while it was an AWD mustang, I don't think it was a particularly "happy" dyno; there we plenty of wrx and sti owners walking around grumbling, about getting 211 hp with a tune and one 5.0 new gen mustang with a super charger that made 456 whp where the owner thought it should be closer to 500hp at the wheels.
We all know about different dynos and all the variables and blah blah blah, but there was a bone stock 987.1 Cayman S there that put down 254 to the wheels, so I think the dyno was quite accurate compared to factory numbers. Any way, at 15% loss (and my car still has the awd transmission spinning its output shaft and guibo) that would put me at 345 crank hp. Even if it's in my head, I could not be more happy.
One thing I think is outstanding was how unbelievably linear my power curve is; it's like a straight line. My car almost completely doesn't have that infamous M96.03 hp dip at 5700 rpm like all the other graphs I see. I knew the car was fast on the track before, compared to new vettes and SS cameros last week at pocnos, and I knew the power delivery was smooth, but I guess this adds some more data to support that.
Huge kudos to EVOMS for what looks like an outstanding tune. Great time today and thanks to everyone hosting. Also, there may or may not have been some highway pulls afterwards, in mexico, with a 500 whp S2000...
Just thought I'd post for others to see; I really do think I'm up about 25 chp with the throttlebody and tune. We all know about dynos, please don't start a discussion about different ones and variables, I am sure I'd get less on your local dynojet -- I get it.
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