Originally Posted by TurboSlipNot

700-750lbft is about the limit of most factory rods in these high end cars - somewhat anecdotal as I've seen ttrs and r35s survive more but its very much advised against by people who would warranty the work done right. If you go for rods then it usually turns into a "since were splitting the case..." logic and you find yourself in some 4L mountain towing thing in no time with a 2nd mortgage and the ability to run down the Flash .

Unless you live at a track, more than 900awhp tends to need bottom end work, fuel adjustment re e85/meth, and timing pulls enough to earn the car a seat on the short bus - power levels often not fully usable on the street with maintenance and operational considerations significantly more onerous than normal cars. Its also a bloody 911 - not the best candidate for learning the ins and outs of daily-ing builds IMO. NC is pretty populous and as I recall quite ticket-happy; your setup strikes me as well balanced between being faster than most things one can buy and supportable without a serious history owning built things while still passing for maybe stock/street legal in places that care about noise and emissions. Most people in a position to own these aren't street racing off stop lights for a few thousand bucks every night (clutches and braces if they are so inclined...) so on-street its more or less "pass 3 cars where normally its just 2" sort of advantage along with the ability to confuse sports bike riders (even more than they had to be to get on it :-p).

Congratulations, that is a gorgeous setup and should be gobs of fun. If the temperature thresholds thing are a bother (I've frozen my posterior a couple of times in the woods around lejeune), they can be addressed automatically through software (boost limits on temp, fuel, etc thresholds along w timing safety nets) but that may require a standalone which tend to upset OBD scanners at inspection stations (not end of days but a pita to play "match the pigtail"). Curious how the electronics are doing in there - I've seen a significant increase in owner complaints about digital components after the 991.2 refresh and wondering how all of yours are doing with the polite but nontrivial changes.

Originally Posted by FIR3

Yes, there is PDK tune as well and reportedly never any slippage observed.

I’m in Chapel hill in the Chatham county part so no emissions / OBD II testing. Just annual safety checks to make sure tires, wipers lights horn etc are good.

Originally Posted by vtec_

I'd de-tune it to 700 WHP if you dont plan on racing it seriously

get the most conservative 93 pump gas tune you can get and just drive it..but thats just me. these cars are fkn fast bone stock. they can run low 10s!

im putting a set of hybrid turbos and injectors into my 996TT just to make alittle more than your car does with a tune lol

Originally Posted by FIR3

My last 3 cars ran low to mid 10s and objectively that is plenty, but subjectively you get used to it. Many of my friends cars run low 10s as well so it’s nice to be a tad faster 😉.

I agree it would be nice to have a pump gas only map for peace of mind but from what I hear, this thing barely uses any meth.

I plan to get the car on an AWD dyno to check a few boost levels and adjust the tune if needed. If the 800whp map in fact has 650 lb ft of torque that is probably pretty safe for around town from what I’m reading. Especially if I’m not launching the car and not running slicks.

My current thinking based on learning thus far is that I would like to get an intermediate config that makes 850whp and just under 700 lb ft of torque to be my new “high” map for special occasions. The current high map of 900/750 sounds like it’s overkill for my needs and unnecessarily risky.

Originally Posted by vtec_

Someone correct me if im wrong but i dont think you can get parts for the PDK boxes and if it breaks you need to buy a new one from porsche or find a good used one.

Id dial it down unless you can fork out 30k for a new box if it breaks. a mid to low 10 sec street car is fasst AF but i hear you on getting used to it.

BTW..do you know what % tint that is? the car look awesome btw

Originally Posted by FIR3

I spoke with owner who built the car last night and got a little more info.

Boost logic initially tuned the car on the dyno to around 800 whp peak on 93 + m1 meth at 25 psi. Dyno was a RWD dyno and showed around 750 toque which is a bit higher than ideal.
He was told 750 torque in RWD dyno is a lot different than AWD on the street but owner was still concerned so he had Boost Logic street tune the car in conjunction with Kuwait tuner Faisal Dashti of Xtreme performance to limit the torque.

Faisal reportedly set the car up to run at two peak boost levels (25 and 28-29psi) via changing correction offset on boost controller (base:10 vs base:30).. Both use the same tune and both use 93 plus meth, no race gas. (Is no race gas normal at high boost?) At low boost, max torque setting at the clutch is limited to 650 lb ft. At high boost it’s limited to 750 lb ft and estimated HP is 900 whp +/-. At high setting, the car ran a 60-130 in 4.9 seconds in Texas 100 degree heat.

There are not any dynos after street tuning but logs were reviewed by Faisal. Faisal told him only run the high boost if temp outside is above 55F, otherwise keep it on low boost to be safe when weather is cool. Car will be on low boost when I receive it and it’s been near 100 degrees this summer in NC.

There is an AWD dyno near me in NC so I’m thinking it may be a good idea to dyno the car on booth boost settings to get a better look at the torque curve. Maybe run it on intermediate boost level as well to find configuration with just under 700 lb ft. I may even be able to book some time in conjunction with a tuner to review everything and adjust as needed to be sure it’s all safe.

Any advice or recommendations others may have is welcomed as well. I’m in uncharted territory here. Thanks.

Originally Posted by vrybad

Based on my knowledge, race gas would be suggested for 28-29psi.
It adds a margin of safety.
Tuners can play with torque numbers by pulling timing at those boost levels but that presents other problems.
900whp can likely be done with pump gas but I think the car would have to use a pretty good bit of meth to get there safely.

Originally Posted by vrybad

My car made 800/650 on pump/meth and 880/700 on race gas/meth and it was at a few psi less than your settings, if I recall correctly, but bigger turbos.
AIM built me a car I could drive every day without much worry.

Originally Posted by vrybad

That 800whp chart looks good, maybe a little aggressive on the low end.

Originally Posted by 2swoosh

buying a modded car in an "as is" situation is very risky especially in a high dollar toy. Boost Logic has a good reputation in the fast car world if i were you i'll spend a little more $ on a PPI with dyno done by BL and right there you can make a decision to detune for more reliabilty unless you're going out there breaking records and bank accounts, otherwise Happy Motoring!

Originally Posted by FIR3

Y
My friend has an AIM 850R with Dodson clutches and he would have sold it to me for less. It was very tempting as AIM is very reputable in Porsche world but it’s a 991.1 car in black / black. I really wanted a 991.2 in GT silver and don’t want another black car.
Do you know the specifications on the AIM turbos? I tried to find this info to compare to the g25-660s on mine but haven’t been able to find the exact specs yet.

Originally Posted by sirius9

For 991.2 Turbo S, as far as I know, ES Motor ES850 kit, which is essentially AIM 850 kit, uses hybrid VTGs (Stock turbo housing).
Only recently that they have started introducing Garretts Turbos in their ES900 kit.

Looking at your dyno graph, 767 ftlb (wheel) max torque at 4000 rpm is pretty wild. Might be a bit of strain on the PDK.
Mine is max 685ft lb wheel at 5220rpm.
Just my 2 cents, still learning after 3 yrs owning mine.

Originally Posted by sirius9

Looking at your dyno graph, 767 ftlb (wheel) max torque at 4000 rpm is pretty wild. Might be a bit of strain on the PDK.
Mine is max 685ft lb wheel at 5220rpm.
Just my 2 cents, still learning after 3 yrs owning mine.