dk996tt

After much thought, I have decided to put my Sledgehammer up for sale. Although I did not have a lot of time to drive her, the reality is that I would have to put her in storage over the winter and wait for spring. I have talked to Tym and we are going to be working on a new and exciting project which should be completed by spring. This new project will hopefully once again, raise the bar for performance tuning in the Porsche community. My Sledgehammer has a MSRP of slightly over $140K. The Switzer upgrades include: Sledgehammer kit - $50K, HRE P40 wheels and Toyo R-888 tires - $6500, KW Suspension - $3500. This 997 Turbo is currently the most powerful 997 Turbo in the world (bolt on or otherwise) and holds the record for quickest ¼ mile pass at 9.79 @146.4 mph, quickest 60 – 130 at 4.86 seconds, 0 – 60 mph in 2.5 seconds, 0 – 100 mph in 4.8 seconds, and the fastest Texas standing mile at 194.99 mph. Overall, there is over $200K invested in this project. The car currently has under 900 miles on the odometer and is in perfect condition. I will consider all serious offers. Please PM me with any offers or questions.

harris

ant pics???

harris

dk996tt

pics coming soon.

Jean

According to who?

dk996tt

according to what i have been able to find on the internet so far. if i am incorrect, please show me a 997 turbo that has run faster than 9.79 in the quarter mile and has put down more than 850 rwhp.

Jean

dk996tt

I would be happy for you, but a record means it has been verified and certified by official and independent sources, or else we all have world records in something.

$50K for a bolt on upgrade without any modifications to the engine internals seems like an awful amount of money.

I also wonder what are the survival chances of this engine if run at the levels you have moreover without factory knock sensors as it is running a parallell ECU with Motronic.

In case you could be interested, here is a much faster car (and there are many others, just not on the net):

http://www.youtube.com/watch?v=4Vmj0rWQUZk

9.5 seconds at 160.5 mph in the 1/4

Care to show us your 0-300kph (186mph) from your last run from your DBOX? I asked for the data on another thread but did not get an answer.

TB993tt

In conjunction with the "shut down" video proudly proclaiming that because of the unfinished tuning the engine was shutting itself down at high loads to protect itself (lucky for you your man has not found a way of disabling this feature so your engine has stayed in one piece) the above statement is surely THE most ridiculous proclamation and epitomizes the complete and utter BS which is RWHP chassis dyno garbage on turbo cars......

How has this car got 850hp ? your video shows that is hasn't got any power over a certain load threshold I know I am always sceptical about "Porsche engine dyno hp" compared to tuner hp but this takes it to another level

dk996tt

i will ask tym to post the 0 - 300kph run from the driftbox. my bad for not seeing the 9ff run 9.5 @ 160 mph in the 1/4. so would it be fair to say quickest bolt on 997 turbo with stock internals? all my runs have been verified and are posted on 6speedonline.

dk996tt

you have no clue what you are talking about. you know absolutely nothing about this project and are making generalized statements. please do your homework before making such comments.

TB993tt

Which part of what I say is incorrect ?

If the engine will not run at all load levels and especially at full load in top gear which is where a turbo Porsche engine will make the most real power then by definition - no run=no power
Your dyno run becomes completely meaningless if it is supposed to give you a power figure which can be compared to the 480hp which Porsche is quoting - it merely shows that for a certain load on a chassis dyno the engine can register the machine up to 850hp - It is actually a great example which people should learn from.
Because most people never experience full load at 190mph in 6th (particularly outside De) I would wager that a LOT of mediocre tuning passes unnoticed.

dk996tt

i am having the run verified by one of the moderators on 6speed. but looking at the data on one of the runs where we eased it out of the hole, the car went from 0 - 60 mph in 4.99 seconds, but then hit 180 mph in 19.24 seconds in 2994.32 feet. on another run, it hit 190 mph in 22.57 seconds at 3866.12 feet. these numbers should give you an indication of the power output of the car.

TB993tt

But on all but the 0.8bar run on the video the engine shut itself down (Porsches aren't supposed to do that ) so zero power output !!

dk996tt

hey up chuki. watch the video again. look for the segment where we make a full run at 1.35 bar @ 194.99 mph.

TB993tt

Watched it again and it states "nearly full run" for the 194.99mph - fast yes, a properly tuned Porsche 997tt ? In my book no but you are/were obviously happy with it and that is what matters.
I tend to go with the Philosophy of the better Euro tuners whose Porsche turbos have to pound the autobahn at these speeds and load levels on a daily basis but that level of sophistication is probably overkill and uneccessary for your needs over there

Jean

Hi DK, thanks, looking forward to see the data.

Just as a side note, back in 2002, Sport Auto independently tested Gemballa's 996 GTR 750 (1.4bar) on 19" and with very poor aerodynamics (huge rear wing) and 750 flywheel HP that hit 0-186mph in 21.7 seconds.

in 2006 Sport Auto also tested a 780 flywheel HP cabrio 997 0-186mph = 21.2s on 19" wheels.

Those are some examples of what these tuner cars can do with 750 Flywheel HP running on Bosch Motronic and solid reliable internals. When you move up the scale of HP then you can see the 160+mph trap speeds that the 9FF car did in the video.

Those are insane numbers and most probably not very street friendly cars, but it is important to keep such tests in mind when mentioning world records, as these were not attempts to break any, just tuner cars made available to some wealthy customers.