996 performance imporvement
10-13-2015, 03:41 PM
#16
Race Director
JATO.
In seriousness - you're going to dump a HUGE amount of money into the car for incremental gains (best case) or no gain (likely) or a net loss (depending on your combination of aftermarket stuff).
The suggestions about how to make the car feel faster and ways to take better advantage of the power it makes (suspension) are good ones.
Of all "bolt-on" mods, the one certain to net more usable power at the wheels is an underdrive pulley.
In seriousness - you're going to dump a HUGE amount of money into the car for incremental gains (best case) or no gain (likely) or a net loss (depending on your combination of aftermarket stuff).
The suggestions about how to make the car feel faster and ways to take better advantage of the power it makes (suspension) are good ones.
Of all "bolt-on" mods, the one certain to net more usable power at the wheels is an underdrive pulley.
10-13-2015, 03:50 PM
#17
Instructor
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I assume an underdrive pulley slows the rotational speed of all accessories. No impact to Power steering? Electrical charging? A good reason to keep the revs up I suppose.
10-13-2015, 04:07 PM
#18
Rennlist Member
Two words: Heel & Toe. Unless it's a tip, if so, you might as well forget about it.
10-13-2015, 04:19 PM
#19
Race Director
The "take a performance driving class" answer often seems demeaning, but there is some truth to it...the mammal between the wheel and the pedals is the only explanation for how a 40-year-old car that made 85 horsepower NEW can consistently chalk up better lap times than some showroom-new 350 HP 911's with laundry lists of driving aids...
10-13-2015, 05:17 PM
#20
Rennlist Member
Yeah, the single best upgrade is to the driver. My current hairdresser laptimes (110 hp maybe) are 4-5 seconds faster than my best 911 laptimes (325 hp) ever were as a result of some great instruction and an open mind.
Might cost more than new springs, but some instructed driving event of whatever kind will bring you years of entertainment.
Might cost more than new springs, but some instructed driving event of whatever kind will bring you years of entertainment.
10-13-2015, 05:52 PM
#21
Rennlist Member
All of my 996's auxiliary systems worked fine with the underdrive pulley, and I did not notice any charging issues. Posts here and there suggest that an UD pulley will prevent power steering overheating that sometimes happens as a result of periods of high-RPM driving...mostly reported by track folks.
The "take a performance driving class" answer often seems demeaning, but there is some truth to it...the mammal between the wheel and the pedals is the only explanation for how a 40-year-old car that made 85 horsepower NEW can consistently chalk up better lap times than some showroom-new 350 HP 911's with laundry lists of driving aids...
The "take a performance driving class" answer often seems demeaning, but there is some truth to it...the mammal between the wheel and the pedals is the only explanation for how a 40-year-old car that made 85 horsepower NEW can consistently chalk up better lap times than some showroom-new 350 HP 911's with laundry lists of driving aids...
10-13-2015, 06:01 PM
#22
Where did you read that a lightweight UD pulley can help with steering overheat issues? I have this issue when I track after the 3rd or 4th sessions. I'm going to install a steering cooler before the next event to help but never considered a lightweight pulley could/would have a positive affect on the steering's overheating problem. Can you elaborate please?
10-13-2015, 06:27 PM
#23
Rennlist Member
OP sorry to derail your post bud.... plenty of good replies above. If I were to spend the $ Id work on the exhaust, purely for the sound, as long as all mechanicals are sorted first. (That is if you don't have PSE or hacked mufflers already)
10-13-2015, 06:46 PM
#24
10-13-2015, 11:30 PM
#27
Three Wheelin'
Yeah, the single best upgrade is to the driver. My current hairdresser laptimes (110 hp maybe) are 4-5 seconds faster than my best 911 laptimes (325 hp) ever were as a result of some great instruction and an open mind.
Might cost more than new springs, but some instructed driving event of whatever kind will bring you years of entertainment.
Might cost more than new springs, but some instructed driving event of whatever kind will bring you years of entertainment.
DT, if instruction helped you get better lap times on your roadster, then the same skills should apply in the 911. Just saying......
10-14-2015, 04:17 AM
#28
Race Director
Where did you read that a lightweight UD pulley can help with steering overheat issues? I have this issue when I track after the 3rd or 4th sessions. I'm going to install a steering cooler before the next event to help but never considered a lightweight pulley could/would have a positive affect on the steering's overheating problem.
Can you elaborate please?
Can you elaborate please?
There have been several failures with the uber-lightweight UD pulleys. If you get one, get one of the sturdy versions. The skeletonized versions are nice to look at, but a failed pulley means no alternator, water pump, etc.
10-14-2015, 09:17 AM
#29
Rennlist Member
I'm sure you're right. But I haven't taken the 911 to the track since I bought the track-specific car. I do know that the time on track with amazing people in the right seat has made me a better driver across the board.
10-16-2015, 06:52 AM
#30
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I have had my 2004 996 Cab since new. The engine was replaced by Porsche several years ago due to RMS issue. I would like to improve its performance and would like some recommendations on how to best do that and what the costs might be. Currently, I am willing to spend up to $2500. Not sure I want to spend the 10K for a SC. Thoughts.....
There are a lot of areas for improvement of the 996 Carrera. If you are looking for the best bang for the buck in terms of performance and sound, our Competition Air Intake System absolutely sings when you get over 4500rpms. In addition, the factory intake system has been shown on the dyno to be a large choke point on the 996, so the performance gains will be noticeable.
On the exhaust side the biggest area of restriction of performance are your factory cats. Our Sport Cat X-Pipe utilizes much freer flowing 200cell HJS cats, and combined with the X-Pipe design has shown a substantial improvement in power. It also provides a throatier, more aggressive exhaust note especially in the higher rpms.
PM me or give me call, and I will be sure to work with you closely to accomplish your goals.