I have an IPD competition plenum on my 2006 and I’m 90% sure that I want to go back to the 74mm throttle body. I want my midrange back but I also want to be able to get the most out of a tune when it’s all done. Would going back to the stock plenum and throttle body be counterproductive versus a 74mm IPD setup? I don’t want to do
headers
and I’m getting ready to replace my
Fabspeed
with a
Carnewal
if that factors into the tuning equation. Essentially, I’d like a slightly quieter car with no drone and better low and midrange torque for drive ability. Any thoughts or advice?
As a side note, does anyone have a stock plenum and TB that they would sell me? Would anyone who has a 74mm IPD setup be interested in a swap for my competition plenum?
I have a stock plenum and tb I can sell.
Now, as to your questions....
Is your car tiptronic or manual?
Drone with a manual is negated by ram's. Which you control.
Tip car.... different animal if you drive in "D"
Your tb and plenum upgrade are not causing drone.
Your cat back
exhaust
components are the first culprit for drone.
Headers
do not cause drone if you are using cats (not race catless
headers
)
Progression for best power in these cars
Headers
Tune
Whatever else beyond that is personal preference and minimal gains will be realized, but gains are gains.
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I’m in a manual! I’m hoping the
Carnewal
takes care of my volume and drone issue but I hear what you are saying about being able to control it with RPMs! I’ll try to DM you about the stock plenum setup!
When I bought my car, it had a custom almost straight-pipe cat back
exhaust
. The drone was terrible, thought my fillings were going to fall out of my head. I avoided 2500-3200 RPM range like the plague.
Replaced that with a
Soul
Performance
exhaust
and race
headers
. Guess what? No more drone except for very slight one at 2800-3000 RPM. Barely noticeable and not bothersome at all.
Yup.
I'm even worse.....
Tiptronic car, but I don't drive it in manual mode.
Soul
street
headers
with cats,
soul
rear section, ipd
gt3
tb and plenum, evoms intake,
softronic
software.
No drone.
Cold start is angry, but my wife doesn't complain.... so that's saying something.
(She loves electric silent cars)
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I went with
Soul
long tube
headers
and a
Softronic tune
. I have an old
GT3
78 mm throttle body from Scotts/Softronics Plenum race kit for the
987.1
. I told Scott to focus on the mid range torque and forget about anything above 6800 rpm as i want to save my rod bolts. He did an excellent job matching the race plumen kit to the
Soul exhaust
velocities. With a new software flash that targets the higher volumetric efficiency of the intake and engine by completely retuning the remaining intake resonance valve, Vario Cam Plus, Ignition, and Fuel delivery maps. No more flat spot around 3500-4000 rpm. This makes the car much more drivable by not having to wind it out to get the torque going. I have a Milltek
exhaust
and that muffler with the long tube catless
headers
work very well without drone.
Oh, but the sound the
Soul exhaust
makes above 6000 RPM is intoxicating. Sometimes I wish my redline went above 7400.
