just got back from thunderbolt in nj two great days on track,it would of been 3 days but yesterday i baled after haven this problem.

into turn 6 going into the octopus its downshift into 3ed float around to turn 8 and downshift to 2nd powerslide 9 going into #10 its upshift to 3ed.this is where the shift lever is not engageing into 3ed.(no where elce on the track is their a 2-3 shift). this happened about 10% of the time on track.

no noises from the trans. sinkroes? aren't these trans bullet proof

some say its that the porsches don't like hard shifts. maybe slight G forces affecting my placement of the shift lever (cause its a strange place to shift just going into turn #10 that is just a small kink.

another said maybe a cable adjustment

I'm going to pull it out of the trailer now to see if it happens in a straight line.

thanks all

 

Everyone who has tracked has likely had this issue at one point if their track has a 2nd to 3rd shift under side g load - it is normal

The gt3 is a street car - you are going to need solid everything mounts if you want this to be 100% fixed

The 99% solution is to recognize this will happen in these types of situations when you are on it and compensate by deliberately slowing the shift in this situation

All you have to do is say "heart - beat" (2nd to N - N to 3rd) and it works 99.9% of the time

Mosport 5a to 5b - car is twisting deceling then twisting acceling and it is easy to do here

When it happens just immediately stop shoving it in and grinding the teeth

Next time on the same corner try to find a slightly differnet spot to do the shift and or say "heart - beat" or both and all will be fine

I'm installing wevo engine mounts next week - this might work - might not - we shall see

Pauk

 

ok heart beat it is

but with others on my *** heart beat = cars in my ***

i did this track last year and didn't have any problems.

is their any adjustments ?

your installing wevo motor mounts just for this reason?

i will be back at this track (thunderbolt) on july 10-12 and i'll try what you said.

and i'll be at mosport on july 24-26 with nnjr and UCR maybe we'll catch up at this event .i ran mosport also last year with no problems but i think i remember 5a-5b i'll get out the map and thke a look

 

I had this on my 6GT3 until the re-gear by Brian Copans and since then it has never done it, don't know why?

 

- I did this track last year = you are probably faster this time

- also maybe early season so your mind may be slow and you may be shifting a fraction later when twisting is greater

- at mosport for me I can't describe exactly when it happens except that is does given a certain entry downshift blip try to engage 2nd for corner 5B

- since yo know the track you are litterally launching yourself over 5a and if you are really fast you are still braking until you have to get into 2nd while trail braking and then getting hard onto 2nd to launch onto the back straight all with the car twisting clockwise ( for those that don't know Mosport it is like a condensed Oaktree at VIR - there are a million lines through this corner but the fast way always has lots going on)

- but back to your / our issue

- if the 2nd to 3rd comes on track out then "heart - beat" is the only way - and the good thing is that once you know this your maind will focus and you really won't lose more than a fraction of a second as only the slightest of pauses is required

- the wevo mounts

- I'm trying these for principle issue of trying to reduce the *** of the car from moving under critical load situations - think uphill transition at WG at wot if you want to also change gears at this point - the new 997gt3.mk2 magnetic mounts reduce engine movement from a max of 18mm to 1/10th the amount - thus highlighting this issue

- the second issue would hopefully be the 2nd to 3rd under load shift but I can only hope this to be true ( a bonus) as tranny mounts also come into play here

- bottom line is, every car has issues - we have RMS (TT seal fixes this), crappy LSD (Paul Guard Unit fixes this) and the 2nd to 3rd under load shift (maybe wevo works? - but "heart - beat" fixes most of it), rear toe changes (order some Tarret, PMNA, Sharkwerks, GMG, etc toe link)

- if you have noticed our crappy high speed compression damping - call Moton or Ohlin)

Paul

 

Funny you say this as when I installed the 4.0 R&P when I was doing the Guard LSD, my shop said that they had to substantially change the shim meassurements (not unexpected but "substantially" was not really expected I was told) - but after this all I can say is that my gear box was much tighter (and this is when I thought that not gear box in the world could be better than the OE gt3 - but mine now is)

I can say that I believe I experience the 2nd to 3rd issue less but I can still get it inthe right situation

 

I'm on my blackberry, please excuse spelling in above posts

It has been a long winter up here in toronto so I can't wait for track season - I got the car out of the garage today for a 20 minute post winter breakin with summer rubber on - all I can say is that this is the greatest car ever built - I have a lovely wife and 3 kids but driving this car is like guily supermodel girlfriend stuff

Thank god winter is over

 

My RS was balky on the 2-3 shift. I think is was delivered with some maladjusment in the shift mechanism. It would shift more rapidly into third if I applied slight lateral pressure (ever so slightly toward fifth) to the lever while sliding into third. You might experiment with this. It was annoying to have to employ this method on a $140k car, but it did help.

 

I've had the same problem. It typically occurs when I am accelerating hard out of a slow, sharp turn. I've had the dealer adjust it twice, but to no avail. The "heart-beat" strategy is the only one that works for me. However, I have typically said "damn-it". Z

 

The 2 -3 upshift under load is a common problem. The PSD guys teach the heart-beat method. I have also found that replacing the tranny fluid frequently helps diminsh the problem. Cup cars spec 10 hours before changing tranny fluid... I took that as a hint It helped.