joshd

You are welcome and congrats on the T! I know you will love it!

It should be noted of course that these parts are designed for any non-GT 991.2 911 ... base, S, or GTS. So it makes it extremely enticing (for power junkies like me) to do something like buy a base Carrera and spend the extra money on crazy GT2RS-like power ... for a lot less than a '2RS!

Also - the prices on the parts are very reasonable for the level of quality, engineering, and performance ... Porsche tax not applied!

GT3ZZZ

Id be interested to know how it puts the power down? I'm trying to keep mine 'sensible' at 500PS and with the stock T turbos lag should be minimal. My 700PS 991.2 2RS struggles unless its a hot summer day and the tyres are cooking, it steps out all the time on a cold day and is less usable/enjoyable as a result.

joshd

It's definitely traction limited in the lower gears, especially on anything less than a perfectly dry surface. I'm able to do a second gear pull to redline at full throttle on a dry road with warm tires without breaking traction, but it definitely feels like it's on the very edge of the traction limits ...

First gear I haven't even bothered to try full throttle to redline ...

Boost by gear would be fantastic, but I don't think the stock ECU is capable?

Psorcery

It better be. I want first gear back.

The whole point of a Porsche is to have all the traction possible.. While I'm not at 700hp I still have an unusable 1st gear on stage 2 and I'm beginning to spin 2nd.

If I were you I'd be eyeing down matching or beating a 720s. You need first gear.

Love your build so far.. I like your style. All action.

BRracing

Edits to our BLOG article made....Thanks for the heads up.
Bruce
BRracing

Stevelev

FORENN

4 Point 0

Congrats OP, looks awesome.

Can you buy the pipes by themselves? I have a white car, so they will match nicely. . I have the AMS intercoolers, will the tial pipes fit?

BlueNorther

Carrera T + more power as perfect drivers car: 991.2 GTS coupe with MT, SPASM and the appropriate options also not a bad way to start...

4pipes

reacher

I haven't tried a T, but I would have sold my 991.1 GT3 every day of the week for my 991.2 GTS. No contest.

joshd

I guess I can understand this since my own GT3 had become too much of a track car for daily use ... and I wasn't getting enough track time with it either, so it made sense to sell and buy a much more comfortable and up to date 911 for daily driving. It just so happens that 2 generations later, the base Carrera probably performs on par if not better than the 996 GT3!

joshd

They can obviously speak to it in much more detail, but the TiAL/Mimo folks have done extensive testing on multiple test cars and there are a few other customer cars out there with these turbos at similar power levels with no issues.

I'm told the weak link are:

1) Traction ;-)
2) Clutch

Which is another reason (in addition to preferring a linear power delivery) why they deliberately limit the torque 'curve' to be flat through the midrange and not go for the typical turbo tuner car midrange torque surge.

Minus the slight change in turbos, the engine in the base Carrera, S, and GTS are the same ... so we know it can safely handle 450 without breaking a sweat ... and there is typically a lot of headroom/margin of safety from stock. Although another 250 hp on top of that is still a significant bump, no doubt!

That said, there is no free lunch and clearly the extra load will put extra strain on components and potentially reduce their lifetime ... I will absolutely be placing the car on an accelerated maintenance program and bringing it back to BR Racing on a regular basis for fresh fluids and checkups! It's probably worth having the oil sent off for analysis as well which I will likely do and share results!

TXGold

joshd

Thanks! I'm not exactly sure how the boost pressure is calculated or what the limit of the stock sensor is, I would have to defer that one to the experts. I don't know if it's directly measured or derived from other inputs (or both in the case of some metrics it seems!). In terms of absolute versus above atmospheric, the picture in my original post showed the car hitting a peak boost of 40psi ... so about 25.5psi over atm or 1.74bar ... although most of my logs show it holding 36-38 psi absolute through most of the RPM range, so it's more like 1.5-1.6 bar.

The AP has a 60-130 timer, but I don't know how accurate it is ... I guess I need a vbox!