991.2 Turbo S upgrades?

991.2 Turbo S upgrades?

Author
Discussion

TB993tt

2,032 posts

241 months

Monday 6th November 2017
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Cheib said:
OP wants more "drama" given the 991.2 Turbo S has so much power that I doubt you can get anywhere near it's performance envelope for more than a a couple of seconds on the public road how is adding more power really going to change this ?!

if I were the OP I'd also want to try a car equipped with an upgrade before spending what's probably a serious amount of money.

I agree about adding more power not really changing what is already a ballistic ride although it will make it more ballistic smile

The A&A option is cheap ~1600 Euro plus a few hours fitting and can be removed and probably has some reatined value as it is a plug in tuning box working off the various sensors.
Here is the dyno chart, that +100NM is definitely going to be felt IMO.


PaulDav

Original Poster:

63 posts

122 months

Monday 6th November 2017
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Personally I would give the A&A tuning box a go as it is relatively cheap and from my research well developed.
[/quote]


Is there anyone in the UK that installs this box? I can only find German sites and my German isn’t that good!


TB993tt

2,032 posts

241 months

Monday 6th November 2017
quotequote all
PaulDav said:
Personally I would give the A&A tuning box a go as it is relatively cheap and from my research well developed.

Is there anyone in the UK that installs this box? I can only find German sites and my German isn’t that good!
You would be on your own with this one, buy it from A&A who will ship it UPS to you and then get your local friendly indy to fit it. Noone to hold your hand if there are any problems but they are pretty unlikely IMO.

nn7man

125 posts

78 months

Monday 6th November 2017
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PaulDav said:
Thanks everyone. I’ve got in touch with Tech9. Let’s see what thy come back with! I’ll keep posting here how it goes

P
Please keep us posted. I'm thinking about the Techart 720PS/920Nm kit too, probably with their sports exhaust. I love the quality of the Akra exhaust but don't like the tips and different look. With Techart, the original tips can be retained.

nn7man

125 posts

78 months

Monday 6th November 2017
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Maps for the two Techart kits. Can't help thinking that the first kit may be better in the real world, much more torque lower down. The second kit with replacement turbos looks like it has more lag lower down but comes on strong at the top end




Nineexcellence

1,931 posts

175 months

Monday 6th November 2017
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Piggy back solutions have been around for many years but you need to understand how they work - they can only interrupt certain parameters - they work in a simple example if you want more boost / you read the value and then tell the ecu that the boost is lower than it actually is. So it thinks it needs to make more boost - that is how it works. Same for fueling and timing.

The best way is being able to get into the actual ecu and updating and controlling all values. This is the best solution by far and the safest assuming the tuner knows what he or she is doing of course. This is available for 991.1 currently.

At the moment the code is accessible but it has to be done on the bench / that means taking the ECU out of the car and making the changes via laptop on a bench.

The correct way is to be able to flash the ECU via the ODB port. This is what is proving difficult at the moment.

Ken


PaulDav

Original Poster:

63 posts

122 months

Monday 6th November 2017
quotequote all
Thanks Ken

So would you say I’m better to wait 3 months until someone has worked out how to flashbthe ecu?


TB993tt

2,032 posts

241 months

Monday 6th November 2017
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I would normally agree with Ken on the Tuning box v ECU re write but I think when a 100M Euro turnover Porsche tuner like Techart sticks its name on it you know that the piggybacking has been well developed on the engine dyno and on the Autobahn plus on a new car like the 991.2 Turbo S owners and second owners will want their warranty intact and the TA box gives the opportunity to have a relatively untraceable tune (particularly for subsequent owners) plus TA's own warranty in case the engine goes pop for the first owner, ECU tunes most certainly will void all warranty in the UK which is fine if you are going to keep the car "forever" but most first owners don't tend to keep these cars very long (mine lasted a month).
The A&A package does look decently developed and at only !600 Euro is certainly worth a punt IMO.
having said all that maybe Ken has some method of maintaining the factory warranty with some new fangled cloaking device smokin

Nineexcellence

1,931 posts

175 months

Tuesday 7th November 2017
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A piggyback is never going to be as good as update to the ECU - that is not to say it is wrong and as Toby pointed out a lot of investment has gone in to these units, but the difference is in the result - a piggyback makes about 50ps on average whereas a decent ecu tune can make 100ps difference - that is where we are at on 991.1 already.

For example on a recent 997.1 (earlier car but relevant for example as we have the same issue on 991.1) car we are hitting the torque limits in PSM tables in 1st and 2nd gear so much so that it cuts the throttle at 5500rpm because it thinks the wheels are spinning when actually they are not - the ecu is just programmed originally with limits that it thinks the car will be spinning the wheels. You could never adjust this with a piggy back solution.

I have piggyback modules that we program already but we are working hard on a ecu update because of the Tuning advantages you get.

I thought we would be there already but as others have found like Cobb etc it is not so easy. I wish I could give a definite eta - I hope we are a few months away at most but i said that three months ago.

Have the same issue on the 718 platform / waiting on new car being delivered next month to start the same process.



Cheib

23,210 posts

175 months

Tuesday 7th November 2017
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Maybe try disconnecting the driveshaft to the front wheels OP....that would be fun!

Desert Dragon

1,445 posts

84 months

Tuesday 7th November 2017
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PaulDav said:
http://www.tech9.ms/images/file/Tech%209%20Brochur...

Techart also do exhaust and engine upgrade? Seems to me this is the most convincing option at the moment?

Or best to wait?
How much is the stage 1 techart exhaust and engine upgrade? If engine or gearbox grenade is the full cost covered under warranty? seems a no brainer if T does provide that level of warranty and not detectable if you ever decide to go back to stock.


PaulDav

Original Poster:

63 posts

122 months

Tuesday 7th November 2017
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T1.1 with exhaust upgrade is £8995

T2.1 with exhaust upgrade is £12995


Desert Dragon

1,445 posts

84 months

Tuesday 7th November 2017
quotequote all
PaulDav said:
T1.1 with exhaust upgrade is £8995

T2.1 with exhaust upgrade is £12995


Thanks Paul. Also if you decide to speak to T if you can find out about the warranty most helpful. Let us know what you go for please.

PaulDav

Original Poster:

63 posts

122 months

Tuesday 7th November 2017
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The T2.1 is +140bhp and Tech9 are quoting me £12995 to supply and fit

TB993tt

2,032 posts

241 months

Tuesday 7th November 2017
quotequote all
PaulDav said:
The T2.1 is +140bhp and Tech9 are quoting me £12995 to supply and fit
Apparently I am wrong - I understood it was £30K..... at £13K it is actually pretty good value

PaulDav

Original Poster:

63 posts

122 months

Tuesday 7th November 2017
quotequote all
In terms of warranty, anything that Porsche won’t cover because of the upgrade, TECHART guarantee to a value of 75,000 Eur. So essentially you still have a full warranty.


Desert Dragon

1,445 posts

84 months

Tuesday 7th November 2017
quotequote all
Be interesting to find out standard 991.2 turbo S VTG specs and the upgraded Techart VTG specs i.e. inducer and exducer sizes

I agree seems very good value for 640 PS and 720 PS. Have one of these landing soon wink

TB993tt

2,032 posts

241 months

Tuesday 7th November 2017
quotequote all
Desert Dragon said:
Be interesting to find out standard 991.2 turbo S VTG specs and the upgraded Techart VTG specs i.e. inducer and exducer sizes

I agree seems very good value for 640 PS and 720 PS. Have one of these landing soon wink
I think they've got the price wrong, the blowers used to be £5K a pop each ! I'll find out soon.

Desert Dragon

1,445 posts

84 months

Tuesday 7th November 2017
quotequote all
TB993tt said:
Desert Dragon said:
Be interesting to find out standard 991.2 turbo S VTG specs and the upgraded Techart VTG specs i.e. inducer and exducer sizes

I agree seems very good value for 640 PS and 720 PS. Have one of these landing soon wink
I think they've got the price wrong, the blowers used to be £5K a pop each ! I'll find out soon.
Does seem very cheap for 140 PS on top especially with a proper warranty. If you can pick their brains about turbos I'd be interested as I've heard the standard turbo s vtgs do all sorts of clever things like hold boost when you brake for corners etc. Be a shame to give up this sort of OEM functionality for a few hp more but maybe the techart vtgs can do all the things the new turbo s vtgs are capable of? Somehow i doubt it though.

TB993tt

2,032 posts

241 months

Tuesday 7th November 2017
quotequote all
I was correct it is ~£30K, apparently Techart made an error on one of their price lists !!