CSK 911 C4S

Said no one ever...........

tmarino

The supercharger setup will run you over your budget for sure but would get you the most for your $$ for sure.

My 3.8S is running with a full FVD Brombacher Sport Exhaust, complete with headers, ECU tune and FVD PDK tune. The combination of the ECU and PDK tune makes all the difference in the world.

Car has plenty of low end grunt and gobs of mid range torque for any amount of driving you could imagine. I’ve ran at 5000ft and recently at sea level and don’t need any more power than what I have now. When running at altitude in the mountains of Nevada, I could keep pace with a newer GT car everywhere but the straights between the curves where he would obviously outrun me but once I caught up in the curves, we were neck and neck, typically remarkably Porsche handling.

One of best additional mods is installing the DSC Sport Suspension module. Handling improvement of a great magnitude. Best performance mod if you do nothing else.

All in all, the sounds of the NA motor winding through the gears is addicting!
Good Luck,

NHmacan

Thanks everyone for there reply. At this point it looks like I may go the exhaust, tune, and try and get some weight out with new wheels. I have wanted to do a rear seat delete but my interior is Luxor beige and I think they only make the kit in black.

Murphjup

I have a 3.4, its not a low end torque monster and will never be, but it sounds great, last generation of the NA cars....

Its fun to drive, fast enough for me on the roadways....

I added a Sprint Booster and definitely added more sensitivity to throttle response...

A worthwhile addition, in my opinion....

I was able to get us all a forum discount from SB....

Rennlist Sprint Booster Discount

I get nothing from the discount other than to pass along a savings to my Rennlist Family....

IMHO the 3.4 is fun to drive it will never be a GT car, but you are able to go through the Revs...

Enjoy what you have its the last of the NA non GT cars...

Spaetzl

I threw a 93 octane Stage 1 tune from Cobb on my 3.4 991.1 and it was worth the money, to me. In fact, I just took it back off when I had to put in a tank of 87 octane and was shocked how much difference there was. (Even after filling back up with 93 but before putting the tune back on.) It's not "faster" overall in a practical sense, but the throttle response and overall engine smoothness is noticeable.

I think Murphjup above makes the best point, though. The best thing about a 3.4 is that you can use all of the revs on the street. It's a sports car, not a super car. (Just happens to be a 350HP sports car with amazing steering and more grip than you'll almost ever need with our relatively low torque.) I stopped worrying about power and focused on improving my driving. There's more than enough power for the street after 3k, and the middle-top of the rev range is where you'll be when actually driving.

rugu6869

It's a good start for sure. Changing the wheels to lighter weight will definitely help along with the exhaust/tune.
I spent a ton of money trying to get my e90 330i to a point where it was what I was looking for. I didn't want to go to a 335 due to HPFP issues (three of my buddies had major headaches at the time). Total invested was $30K in CF roof, hood and trunk, full suspension, BBK, exhaust, seats, tune, CAI, wheels/tires, LSD with gearing plus other odds and ends.
In the end, I cut 180lbs. off the car (could have cut a bit more if I'd gone with a more racing type fixed back seat, but wanted it to be more comfortable for the street).
The car handled incredibly (I had $6k into the suspension). It was fantastic on the track. I really had to work the car since it was only about 270HP with the power adders, but it was about as quick as a stock 335 since it was around 3-400 lbs lighter.

Now for the bad. When my buddies started to mod their cars for the track, along with a tune, they were just gone on the track. I had much more experience than them (I was their instructor), but in the straights, they would just walk away with ease. Under braking and corners, I'd climb back a little, but the straights were just too long.

If you're really looking for a kick in the butt, contact RR-Racing and get a supercharger. They are located about 15 minutes from my house. I've been to their shop and it is VERY nice. Great group of guys for sure.
They did a GTS with full bolt-ons and it made 230WHP more than the full bolt-ons. With the small 3.4, I'd say you'll be around 500hp at the crank, which would be a huge difference.
https://www.rr-racing.com/Porsche-Ca...9911scr001.htm
https://rennlist.com/forums/991/1181...d-991-1-a.html

2000se

500HP from the 3.4L..I would echo your response. That would be a huge gain! Now that would be the direction to go!

rugu6869

Also, BGB Motorsports does stroker engines. This would take a full-rebuild of your engine, plus new heads and intake = $$$$
https://www.teambgb.com/981-CAYMAN-G...KITS-s/130.htm

rnl

Am I missing something? Even the base 991.1 has more power than a 997S.
https://www.caranddriver.com/news/a1...ut-in-the-u-s/

If you're craving power may I recommend an A12 Super Bee, Mopar power, straight line drag racing monster.

WP0

More low end torque? I'm sure you know that NA is not low end torque.
Yes, I guess a turbo/super charger is the only real option for that in a Porsche.
I'm sure you also know that Porsche is more high end push, not low end torque, though. Low end torque is more Camaro.

Balr14

I did full intake, exhaust, headers, 200 cell cats and custom tune on a 997.2S . It spooled quicker and picked up maybe 20 hp on the top end. Cost was $11k.

desmotesta

Sporty

"

Wrong

RSBro

This is what led me to going with the 3.4L in the end. I can say I'm happy with the results, since it's mostly a street car.

desmotesta

base 991.1 N/A with manual is the purest of 911s in the modern post-997 era