AlexZTuned

Thanks, I have a base C4 btw. Not having the fancy rear diff doesn’t really matter with AWD - just my personal opinion. I’d be saying otherwise if I was RWD though.

Before I bought the C4, I had my build planned out. I browsed these forums and researched a ton. After seeing many complaining about traction issues with over 500+ HP when tuned, I knew the best solution was AWD.

I came from a tuned C63S Coupe and was tired of spinning the tires at 90 MPH. I’ve gotten all the power slides and drifts out of my system with that AMG - I can’t help but say I absolutely love my built C4.

RichJ_cars

As someone who has gone into the deep end, do you have a sense of what you would do if the motor let go — how much you’d expect to spend on a rebuild/replacement and what shop to use?

AlexZTuned

I’m only pushing 650 crank HP at 22-23 psi on ethanol so the engine is on the safer side.

Spare engines go for 9-12k depending on mileage. These 9A2 3.0L’s can be built with higher strength rods and can be bored out to as high as 3.8L with larger pistons.

Once you start pushing 800 crank HP and above, then you’re asking to bend a rod. But the PDK clutches will begin to fail before the engine lets go. I wouldn’t go more than 750 torque without setting aside cash for Dodson clutches.

I’m still on a completely stock engine and trans and no problems - knock on wood. At the end of the day, I built a C4 that’s as quick as a 992 Turbo S and I’m still under 6 digits all in. 991:2’s are one of the best bang for your buck cars out there with the ability to literally bolt on turbos, tune it; and double your power.

911dude41

let's see some 0-60, 1/4 mile, 60-130 and 100-150 times. There's a nice thread in the 991 TT section. Would be cool to see how your cars times stack up given the lighter weight and it being 3.0

AlexZTuned

(Dragy verified)
0-60: 2.45 seconds (1’ rollout)
60-130: 6.52 seconds
1/4 mile: 10.21 @ 137 mph

These were my stock times for reference:
0-60: 3.5 seconds (1’ rollout)
60-130: 11.66 seconds
1/4 mile: 11.95 @ 115 mph

I have videos of runs on my IG account (they’re in my story highlights). These were done on an unprepped surface on the street.

911dude41

Very good times/numbers. Huge improvement over stock. Seems strong down low and up top but missing a little in the mid range? That's a very good trap speed, I would have guessed lower 6's in the 60-130. Either way, very strong and a 5 second improvement is nuts. Are the 3.0 Carreras geared differently from the Turbo?

FWIW my car and basically everyone's car in my area put down tremendously slower times at the track vs street. Track preps are usually crap or non-existent.

RichJ_cars

I didn't mean to suggest that you were pushing the ragged edge. Do you know the names of shops that do 9A2 engine builds?