user1029

https://www.dundonmotorsports.com/pr...2019-991-2-gt3

it’s an injustice that the GT3 gets the huge intake supplying fresh cool air and GT4s don’t plus the BGB setup as an upgrade 92mm Hellcat throttle body. The 4.5L would love it

I can’t wait to see what the GT4RS does upgrading the intakes without chopping up the interior

Luca Paindelli

420 dollars per HP?!?!?!?! Must be coincidence.........

jayely1

^ wonder if they make any profit on that?

Mongo84

How bad are range 5 and 6 over revs? If I was planning to do 4.5 build would or should those even be of concern if the plan was to do a motor build?

burnergt4

No concern. You’re getting the engine rebuilt, so it’s essentially a fresh start, mechanically speaking.

user1029

Welp, looks like the 4.5L will still be able to whoop the 992 GT3

TDT

lol, yep... 4.5L conversion looking like better and better value, everyday.

Gunner80

Any chance that the 4.5L (probably with catless headers and stock exhaust or GT3 exhaust with down turn tips) passes 96dB at the track?

O5C4R

so its 560HP at the crank?

oakmont

With my new 4.5L, DeMan catless headers and a JCR titanium center bypass if I was a betting man I would say my car is now over 96 dB

oakmont

Now using the DeMan headers.

oakmont

Yes I am now using the DeMan headers.

burnergt4

Correct 👍🏼

oakmont

With my new 4.5L, DeMan catless headers and a JCR titanium center bypass if I was a betting man I would say my car is now over 96 dB

JCviggen

None. The stock PSE is actually loud as **** with race headers. But it will still depend somewhat on the track since dB measurements can vary enormously. My old 3.4L with PSE and race headers did 135.5 dB according to the Nurburgring equipment. Somewhere else it might be 110.

Not really. But it's just a number. Car is fast. GT3 fast. What more do you want? Until someone straps one to a MAHA dyno with proper cooling the crank power figure is pure guesswork.