Well, I had a feeling I was committing more than the $280 that the trophy exotic class costs, but I wasn't quite prepared to actually lay awake at night wondering how I was going to go to this thing with the car in the state its at (just the exhaust).

I can't just show up and run as a stock 991 Turbo S. I mean, sure these cars are fast... but I might race an F12 or an Aventador, or... and I have to beat them.

So where is the sweet spot? I'm not going ot go complete MB and Stage 4 the car. I'm probably more than capable after years of drag racing to handle thermal management, so intercoolers shouldnt be a MUST for me (I have a big CO2 tank I can ever pre-cool the intercoolers with as well).

But... headers, Cobb AP, 104 octane, drag radials on 19s, etc. etc. Sam has given me a great price for the headers/cat pipes/Cobb. But what else?

Was this actually a $10,280 race ticket? I just need to beat the other exotics, and get good sleep between now and then.

Advice?

 

Stage 4 and meth like Mark.

 

Sam will hook you up with a great tune. You don't need intercoolers what your getting will be sufficient to beat an F-12 or any lambo ( that's not force fed).

 

Can the iPD stuff be worth 2k$?
Are drag radial on 19s for the rear helpful on a 1/2 mile race?

 

Get aftermarket intercoolers. You will really be grateful for them on the top end. And your turbos will be very grateful as you're keeping those IATs down

My suggested mods:

Tune

Catless exhaust (I adore my Tubi catless but Kline catless has very satisfied customers as well)

Intercoolers (I have the Champion Intercoolers which I believe have the largest flow rate but many here have ByDesign or AWE Intercoolers).

Personally I think intercoolers are more important than the Y pipe or Plenum or headers.

Drag radials are more important for the quarter-mile than the half. I just stick with Michelin pilot super sports as you can drive them to the event and come back on the same tires. But if you're going to go for DRs go for it.

 

Haha making me feel bad! It all works and we have proven it. It all has its place in a certain order as well depending on your goals. I'll make sure you get the right stuff at the level you're comfortable with buddy. Stage 4 dominates. Stage III can still sweep up pretty much everything out there though unless it's very highly modified.

 

What is your goal? To race by yourself and try to post a fast mph or to actually race people and have fun? More and more people are racing solo at shift sector just to get a mph. Makes the event a bit boring IMHO.

If you want to have fun and race people , read on. If this runway is anything like any other airstrip (crappy surface) and the races are from a dig, you may not post the highest trap speed but you can win virtually every race with far less mods than you think. All you really need is a good tune and some good gas. Why? Because every car will have trouble launching except you. You will pulling 0-60's in under 3 seconds even under the worse conditions. This ain't no dragstrip. It's a runway with no prep and a bad surface for launching. The 911 doesn't care tho. Other cars that can post crazy 0-60 magazine times like the huracan and gtr and McLaren can barely do under 4 seconds in these poor conditions. They spin. You're gone. 1/2 mile is way too short to catch you without hundreds more hp.

So it will take a built motor gtr or a supercharged huracan Or turbo r8 just to keep up. If you get really good at launching (there is a technique when you are tuned), you can even smoke 911's with more mods. It all comes down to the launch. Trust me my goal is to race and beat cars to the finish line who have more mods/power. Have been doing it for years.

 

Well said. Nothing gets out of the hole like a Turbo S. A really built GTR Or twin turbo Lambo will catch you but to do that they really need to have something like 1000 wheel hp or more

 

I appreciate the input. It's all been good.

There is a little context though, that each of you bring to your ideas. I want to try and look at things through each of those lenses and take away what I can that works for me.

Adam, I think you bring with you a certain 1/2-mile experience that I don't have. I have literally thousands of 1/4 mile timeslips in RWD cars over the years, and there is an enormous amount of prep, routine, and learning that go into a good successful day at the strip. It's why guys show up in supercharged C6 Z06s and get their *** handed to them by a *really sorted* 5.0 notch. The guy in the Z06 is a tourist. The guy with the 5.0 spends every Friday night at that particular strip.

The mods you have (tune only or tune and exhaust) allow you to pull a performance envelope *really* to one slim direction. Your use of ethanol, conditions, and other prep means that you've gotten results that can only come with knowledge of how far you can stretch things and what really matters. I don't have much of that; I'm more of the tourist who really badly wants to clean up on exotics one day in September.

Sam has been very good at being transparent about the positives and negatives of each mod "path" and how it will suit my different goals. I'd like to choose either By Design tune-cat-pipes-headers-octane (I already have a Kline "loud" exhaust) OR By Design tune-cat-pipes-intercoolers-octane. Sam has pointed out that he can tune more HP with the intercoolers than with the headers, but that the intercoolers are something I'd enjoy once in September and the headers are something I'll enjoy every time I start the car.

Per Adam's question of goals, I really don't care about MPH by myself. I want to race against other cars and beat them. I also really care a lot about the way the car sounds. It's been a quest of mine to build the best sounding 991 TTS I can. I'm concerned that equal-length headers will smooth out the sound too much, decreasing lower-order sounds, but I can install them myself and I think they are beautiful. It wouldn't be a tough problem to have.

So if the car is as you all say, on its own, pretty deadly, the choice that benefits me the most in day-to-day life will be the one I'll take and that sounds like the headers.

The Pirellis on the car have made it to 13k miles and still have several 16ths of tread left, but launch control takes two tries. One spins everywhere, but the next one launches pretty steady. I may need to put some MPSS's on the car in order to fully utilize the car's powers.

 

The best tires for a set of 4 would be R888 as far as traction goes but they are not made in our front sizes so you can only get them for the rears. Adam has them on his 997.2 which is one of the reasons he launches so well.

The best tires for our 991 are MPSS they work really well not as good as R888 though. If your getting new tires you might want to try the new PZero that comes with the 2017 model I've heard it's stickier than the MPSS?

 

Like we joked Chris I think you are an "Exhaust Man" so this will give you an extra notch in the Kline experience with your car! Also we get a little more top end and some help on EGT's. Help with manifold pressure comes after stage 4. Just wait till you hear the beast with decat pipes and the equal length Kline manifolds! We will log together with the AP and dial you right in with the most bang for buck enjoyment! Best part, you can always keep playing!

I agree winning is lots of fun and these cars can really deliver a sucker punch launch for sure. This makes many BIG hp car guys scratch their heads. But mph and brute force feel are also fun as well as great indicators of good old HP. This is what we can enjoy anytime! (safely of course) And mph is what the trophies are handed out for.

+1 on a set of 20" R888's or new dedicated wheels and rubber for the rear. The Pirelli's can potentially do pretty well as some have sown but it depends on prep and tire condition. In the 1/2 mile they still do ok because these cars are so awesome.

 

I wish R888s came in sizes that fit our fronts as it would be an awesome combination for launch. I go with the Michelin pilot super sports as I do a lot of rallying with my car and need wet traction too and it's really the best all-around tire and it's quite sticky for a non R compound tire

 

Isn't the record 991 Turbo running 177 MPH in the 1/2? Even if you went 177, there will still be plenty of GT-Rs and maybe one or two TT Lambos that will beat you in the 1/2.

With just exhaust + tune + MS109 I always hit 155 MPH. Which is enough to beat stock-ish GT-Rs, Corvettes, Mustangs, R8, etc. but nothing spectacular. As others have stated, LC is fun and our cars are very capable at the start. But generally at the events I've participated in, no one cares unless you go 200+ MPH. So I guess it comes back to the old "all that matters is that you have fun" thing that people always try to convince me of.

 

Before we still spend $6000 to get ready for it.

 

So I'm totally ready to get beat up by something extreme and highly modified, but I was under the impression that if I sign up for "Exotic trophy" it requires no extra power adders and a stock turbo/SC housing.

So I guess my hope is to beat up on the fancy expensive stock-ish cars that show up such as Ferraris and Lambos, R8s and fankly anything else my kids would point at and ask "Why don't you have that, Daddy?" ;P