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996 Cab, better performance with or without hard top

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18 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCH996 Cab, better performance with or without hard top

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difference

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Suspected cause

I noticed it, but didn't even think about it at first, I took the top off, and a few days later I was thinking to myself, man this car really seems like its faster for some reason....i thought it was because I got an oil change, but then I thought about the fact that I took the top off....a few days later I put the top back on and sure enough it was the difference.

996 Cab, better performance with or without hard top
Frequently discussed work

Use more fuel (granted though this will be minor)

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Suggestion · Original poster

In theory, you are adding some weight to the car, so it should use more fuel (granted though this will be minor).

996 Cab, better performance with or without hard top

Suggestion

In theory, you are adding some weight to the car, so it should use more fuel (granted though this will be minor).

996 Cab, better performance with or without hard top
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Leading evidence: 'difference' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'difference' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Use more fuel (granted though this will be minor)' (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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1 matching discussions · 18 captured posts examined · 0 partial discussions

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Use more fuel (granted though this will be minor)

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

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.

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

In theory, you are adding some weight to the car, so it should use more fuel (granted though this will be minor).

996 Cab, better performance with or without hard top

Suggestion

In theory, you are adding some weight to the car, so it should use more fuel (granted though this will be minor).

996 Cab, better performance with or without hard top
Frequently discussed actions (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Use more fuel (granted though this will be minor)

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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

In theory, you are adding some weight to the car, so it should use more fuel (granted though this will be minor).

996 Cab, better performance with or without hard top

Suggestion

In theory, you are adding some weight to the car, so it should use more fuel (granted though this will be minor).

996 Cab, better performance with or without hard top
Reported and suspected causes (1)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

difference

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.

Suspected cause

I noticed it, but didn't even think about it at first, I took the top off, and a few days later I was thinking to myself, man this car really seems like its faster for some reason....i thought it was because I got an oil change, but then I thought about the fact that I took the top off....a few days later I put the top back on and sure enough it was the difference.

996 Cab, better performance with or without hard top
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Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

18 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

  • Rennlist: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

0 acknowledgements have no verified action link; they do not establish a repair result.

Generation: 20261026T122219Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi I am about to go on a 4 day 3000km drive in my 996 cab (12 other cars joining in the drive). It is going to be cold and wet the whole trip so the roof will never be off but dose the car perform better with or without the hard top on?? I am leaving in 2 days

POST 2Original post

I don't think put on the hard top will affect the performance of the car. It may get quiter than the soft top on the highway.

POST 3 / ORIGINAL POSTEROriginal post

Yes it is definately quieter. Yes it safes fuel but is the extra weight compensated by better aero or by the roof being stiffer? OR am I looking at a 2% thing that on the roads makes no differance? Also is the hard top safer in an accident.

POST 4Original post

Quotes source post: 7562370

Why would you say it saves fuel? In theory, you are adding some weight to the car, so it should use more fuel (granted though this will be minor). I think you'd be hard pressed to find a difference in performance characteristics with or without the hard top. And on the road, you are not going to utilize the performance features of the car to the limit (that should be on the track)! I think the key factors whether to put the hard top on is cold weather and noise. If either of this is not to your liking, then put the hard top on and get on the road. Me - I like listening to the sound of the engine, so I wouldn't put a hard top on at all!

POST 5 / ORIGINAL POSTEROriginal post

[QUOTE=rajeshr;7562520]Why would you say it saves fuel? In theory, you are adding some weight to the car, so it should use more fuel (granted though this will be minor). QUOTE] Yes extra weight but is is more streemline and less drag. There was a guy on this forum that had done numerous long hall trips and had measured the differance over the trips.

POST 6Original post

I know you're expecting rain and cold weather, but what if the sun comes out...no choice if you have the hard top on.

POST 7Original post

Quotes source post: 7562520

[QUOTE=Brenton;7562544] How do you know that the hardtop is more streamlined than a soft-top in the raised position? Have you seen or read about wind tunnel tests? One owner's anecdotal reports are inconclusive and perhaps even unreliable.

POST 8Original post

having owned soft top many years ago I am surprised anyone would not jump at the chance to drop the top........I see plenty of cars on nice days with them up and just think "why did you even buy it" so go with the ragtop and every chance you can.... drop it and fly your flag baby !!

POST 9Original post

With the hard top on: - it's quieter - and I see 10-15% better mileage. I was surprised that it would be measureable -- but it is on my car.

POST 10Original post

I would agree with quieter - and the mileage is good news... my point is its spring and the "chance" to tak ethe top off is high - If I were "couped" up all winter... I would have the top dropped as much as possible (thats why ya have it )

POST 11Original post

Quite a bit quieter with the hardtop on, whether around town or on the highway. This is a combination of engine noise and wind noise. Hard top believe 10%+ better gas mileage, unless you are including time with the top down where the aerodynamics are not as good as with the top up or with the hardtop. If it is not raining and you have heated seats definitely no hardtop. Even with the temps in the 50's we often put the top down, the windscreen up, the windows up (I know it looks silly) the heated seats on and the heat turned all the way up. With a jacket on it is actually pretty comfortable.

POST 12Original post

Quotes source post: 7562972

That's what I inferred, agreed!

POST 13Original post

My .02, since you asked... Depends on your definition of 'performs better'. Based on experience with my old roadster, I'd say your handling and acceleration from a stop will be better with the top off because there is less weight on the car and particularly less high weight. Whereas your top speed will be better and your steady state cruising fuel economy will be better with the top on because there is surely an aerodynamic advantage. All in, it's mostly theoretical and marginal. Me, I'd leave the hard top at home. I don't care about a mpg or two, and I wouldn't anticipate any top speed runs... so having the option of dropping the lid if the weather is nice is kind of priceless. I certainly miss it some days.

POST 14Original post

its faster with the top off, it seems like the car gets up and goes more. I noticed it, but didn't even think about it at first, I took the top off, and a few days later I was thinking to myself, man this car really seems like its faster for some reason....i thought it was because I got an oil change, but then I thought about the fact that I took the top off....a few days later I put the top back on and sure enough it was the difference.

POST 15Original post

Confirmed...hardtop=weight penalty, don't take you hardtop.

POST 16Original post

The hardtop on these cars doesn't weigh a lot. Less than most passengers.

POST 17 / ORIGINAL POSTEROriginal post

Hi Guys thanks for the posts and advice I am going to go with out the hard top, did the trip last year with it on but it did rain for the whole 4 days, this year weather forcast is fine for 3 of the days and mainly fine fro the other. Temp is going to vary from 40 - 59 F should be fun will post a pic when back

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