Ken at Nine Excellence lied to me...

Ken at Nine Excellence lied to me...

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IMIA

Original Poster:

9,410 posts

201 months

Saturday 16th May 2015
quotequote all
TB993tt said:
IMIA said:
no idea Toby - will ask Ken when I pick her up but he's tinkering with wherefore a few weeks. Thinks he might be able to get up to 15% more power by refining the tune and making more changes to intake system so he can have her as long as he likes smile
15% drink
We live in hope smile

Nineexcellence

1,931 posts

175 months

Saturday 16th May 2015
quotequote all
TB993tt said:
IMIA said:
no idea Toby - will ask Ken when I pick her up but he's tinkering with wherefore a few weeks. Thinks he might be able to get up to 15% more power by refining the tune and making more changes to intake system so he can have her as long as he likes smile
15% drink
Toby we made a change on one of our 996 turbos that gave us a 15% gain in air flow to the turbos which netted a big uptake in power. Whether we can translate that to the 997 is another matter but the concept worked. Again thinking outside the box solution. As you know the problem on the 997 is the stupid intake pipes. Looking at different source to turbo.

IMIA

Original Poster:

9,410 posts

201 months

Sunday 17th May 2015
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Looks like the other 9e 28 managed 205 mph! Thats ridiculously quick for a car with so little modifications relatively speaking over 1.3 miles. Results indicate I still managed 200mph before I ruined my plugs. Its going to be tough to beat 205mph for me!

http://www.vmax200.com/results/

IMIA

Original Poster:

9,410 posts

201 months

Sunday 17th May 2015
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No MTBE in VP Extreme so not sure how plugs have been messed up.

red997

1,304 posts

209 months

Monday 18th May 2015
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hope you get it sorted !

quite pleased with my 188mph

IMIA

Original Poster:

9,410 posts

201 months

Monday 18th May 2015
quotequote all
So she definitely didn't like the fuel. She's been flushed out and drained of all the VP Extreme which is an unleaded fuel with a MON rating of 110. MS109 which I normally use only has MON rating of 101 by way of comparison so car could't handle this. Car's running fine now but big faux pas. Lesson learned.




Nineexcellence

1,931 posts

175 months

Monday 18th May 2015
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If I recall the car has run 6000 miles or so since the upgrade and has been on track and at Vmax and in Europe doing flat out runs. The car has suffered no affects of the upgrade other than a loose hose which was rectified.

The car has two maps, like all our 997 Turbo tuning. The normal map (non sport mode) runs a lower level of boost and works perfectly on vpower99. The sport button increases the power, and is designed to run on a higher octane count of 104. The customer knows that they need to run the higher octane. What typically we do is blend fuel by using ms109 and vpower99 giving a 104 mix. The car runs fine on neat ms109 as well.

When customers run at Vmax I always suggest adding an octane boost not primarily for performance (in the case of the sport button) but as protection. The fuel you get today is not always perfect, and if you are going to run 50 runs to 200mph, well frankly it is an insurance policy as well in case the fuel in the tank from the pump is for example a bad batch. Obviously running sport mode in this case with straight 109 adds quite a bit of power. For example a similar 9e28 when run on pump hits 201gps and then with 20% blend of ms109 it ran 205gps.

Imran purchased this vp extreme. We don't know the density of the fuel since there is no fact sheet that I can find, but if the density of the fuel is within a couple of %, then it is no issue. But clearly if you run leaded fuel when you should be running unleaded, short terms and the 02 will have a field day. Same concept with running e85 without enough tuning.

All we know (since I was there) is that within 4 to 5 runs on the day after filling up with this vp extreme, is that the car started to behave badly, and this got worse, with the car cutting out. Then the following day the car would not start.

When the car arrived, we still could not start it. Blending the fuel with a bit of normal fuel, the car tried to fire into life, but still could not do so. We changed the plugs which were fouled, and started the car, to a whole lot of smoke. Switching the car off, we waited a while and restarted the car - after one minute the smoke cleared but the exhaust system was excessive ( extremely ) within one minute.

We then drained the fuel system completely, ran a wash through it to clear out any left behind and filled with vpower99 and the car started first time. After 5 minutes the car ran normally.

So clearly there is a difference in this vp extreme and ms109. What that is, not sure, but in future it won't be going into the car.

So nothing wrong with the car, which is what we expected.

Ken.

200Plus Club

10,767 posts

278 months

Tuesday 19th May 2015
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excellent news. so glad that car is still a good un!

Matt Seabrook

563 posts

251 months

Wednesday 20th May 2015
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That must be a relief. Glad it turned out to be nothing more than user error wink

TB993tt

2,032 posts

241 months

Friday 22nd May 2015
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Hey IM, did you see the post from 6Bling below, kind of supports your thinking

http://www.6speedonline.com/forums/997-turbo-gt2/3...

IMIA

Original Poster:

9,410 posts

201 months

Friday 22nd May 2015
quotequote all
Tempted to ask 9e to pop down with mine to these guys.

http://www.litchfieldimports.co.uk/dyno/informatio...

TB993tt

2,032 posts

241 months

Friday 22nd May 2015
quotequote all
IMIA said:
Tempted to ask 9e to pop down with mine to these guys.

http://www.litchfieldimports.co.uk/dyno/informatio...
Wow what a fantastic chassis dyno facility must be one of the best of its type in the world. Whilst the power/torque curves which these type of dynos produce are not as accurate as engine dyno (because an engine dyno brakes the engine for a number of seconds until the torque number stabilises every few hundred rpm) the corrected peak power numbers are pretty much spot on.
On the Manthey Maha set up the maximum power on my stock GT2 was 542.5PS EWG80/1269 and a few days later it recorded 544PS DIN on the engine dyno.

What was quite unique about the Manthey session (and I have seen them doing this before as well as heard similar stories from others who were tested there) is that they really beast the car on the dyno prior to the power run, they take off the rear bumper and load it heavily for near 10 minutes before they attempt a power run, I don't think any other operators do this and it probably isn't in the Maha operators manual but I guess it gives a "real" result...... Always makes me giggle because I think of those 8 second unloaded power runs which some people swear by biggrin

IMIA

Original Poster:

9,410 posts

201 months

Friday 22nd May 2015
quotequote all
TB993tt said:
IMIA said:
Tempted to ask 9e to pop down with mine to these guys.

http://www.litchfieldimports.co.uk/dyno/informatio...
Wow what a fantastic chassis dyno facility must be one of the best of its type in the world. Whilst the power/torque curves which these type of dynos produce are not as accurate as engine dyno (because an engine dyno brakes the engine for a number of seconds until the torque number stabilises every few hundred rpm) the corrected peak power numbers are pretty much spot on.
On the Manthey Maha set up the maximum power on my stock GT2 was 542.5PS EWG80/1269 and a few days later it recorded 544PS DIN on the engine dyno.

What was quite unique about the Manthey session (and I have seen them doing this before as well as heard similar stories from others who were tested there) is that they really beast the car on the dyno prior to the power run, they take off the rear bumper and load it heavily for near 10 minutes before they attempt a power run, I don't think any other operators do this and it probably isn't in the Maha operators manual but I guess it gives a "real" result...... Always makes me giggle because I think of those 8 second unloaded power runs which some people swear by biggrin
Yes agreed looks brill. I also think showing torque and bhp figures for packages clearly demonstrate how much area under the curve any given power kit has and its not just about bhp figures just as its not just about 0-300 kph. Had a p ride in a 9e 25 yesterday and those K16/39 whilst being small turbos really come in with a hard kick around 3500 rpm to 4000 rpm all the way to 6500rpm at 1.5bar boost. Be v.interesting to compare the torque/bhp curve on both the 9e 28 and 9e 25 packages. Money no object I'd still have a 3.9 stroker similar to yours!

Bealo

26 posts

176 months

Saturday 23rd May 2015
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Great to meet you and your family the other day, thanks for lunch... My treat next time.

Glad you like my car and i will look forward to us running together and seeing the real world difference between the 9e25 and 9e30.

IMIA

Original Poster:

9,410 posts

201 months

Saturday 23rd May 2015
quotequote all
Bealo said:
Great to meet you and your family the other day, thanks for lunch... My treat next time.

Glad you like my car and i will look forward to us running together and seeing the real world difference between the 9e25 and 9e30.
Hi Matey, No comparison. You've got a very quick car there. The 9e 25 is good for a 23 sec 0-300kph. 9e 28 is about 26-27 secs. That 3-4 secs is a lifetime on a drag strip!

If you do ever put her up for sale there will no doubt be a load of people on here interested in buying a 9e 25! £30k + VAT yikes nowadays just for the 9e25 power kit nowadays so if someone wants a 996 turbo tiptronic with red hot chilli pepper give Bealo a shout - its silly quick.