Fancy Tech: How to Get Rid of Exhaust Drone, works great!

docaam · 08-10-2010, 02:52 AM

Quote:

Originally Posted by '10Anamoly

Yes, you have to use a hole saw to open up a 2" to 2.25" hole on the FI exhaust. That is where the sound waves travel through, down the resonator pipe, and back to cancel out the droning frequencies.

It's a trade off, keep the drone and dont touch the pretty exhaust or mod the exhaust and enjoy the silence (lack of drone, depeche mode style).

Man when you posted this thread car was in workshop and I have been calculating this drone on rpm range...the vibration starts at 2100 and is there till 2800 depends on the gear and speed as sometime it dies on 2700. Its more if you stay in single gear and accelerate slowly all the way till 3000, but if you push the pedal hard then its a bit less.

So can you throw some light according to your calculations as I have no means to measure those frequencies.

For the pipes does those be in SS or normal exhaust pipe will do the trick. I am about to pull the trigger

by making hole in FI exhausts

'10Anamoly · 08-10-2010, 08:14 AM

Since the FI setup is the same pretty much as mine and the drone in is the same range, I would use 28-30" pipes, one per side. Any shorter and it will tune out drone above 3000rpms where you dont have the problem. Regular steel is fine but I would use some hi-temp paint to keep it from rusting ever.

08-10-2010, 08:14 AM	#2 (permalink)
'10Anamoly Track Member Join Date: May 2010 Location: GA Posts: 882 Drives: 2010 370Z BS M6 Rep Power: 18	Since the FI setup is the same pretty much as mine and the drone in is the same range, I would use 28-30" pipes, one per side. Any shorter and it will tune out drone above 3000rpms where you dont have the problem. Regular steel is fine but I would use some hi-temp paint to keep it from rusting ever. __________________ 2013 Ford Mustang GT 374rwhp, 360rwtq SAE / GT500 Axle-Backs / Brembo Pack / Track Pack / Recaros / 6spd

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Anyone thought about a Hi-Tech Exhaust?	joe370z	Australia/New Zealand	6	05-05-2014 12:24 AM
Failsafe Performance- Great deals on Tein S. Tech springs!!	Chris@FsP	Suspension/Brakes	26	10-06-2010 10:20 AM
Stillen HFC drone?	ducatismo	Engine & Drivetrain	3	07-01-2010 02:42 PM
reducing drone	Zsteve	Intake/Exhaust	39	11-28-2009 08:54 AM