Stage 2 needs slight detune - LotusTalk

brgelise · 07-21-2009, 12:45 PM

Stage 1 a few years back, I removed the silencer with the stock exhaust, because it was acting like a vacuum sweeping the road into the filter.
Stage 2 this spring I installeda Stage 2 and love it except, I'm thinking I want some silencer effect back to minimize the 3400-3800 rpm drone somewhat. Any ideas?? Reinstall 1/2 of the silencer or a short downturned smooth tube with trumpet on the end?

HKFEVER · 07-22-2009, 07:10 AM

Stage II is fine when it's cold, but serious droning when is hot especially under load around 4000RPM. The problem is coming from the insulation material in the muffler.

RoadDad · 07-22-2009, 08:22 AM

Replacing the snorkel on the airbox will not change the drone of your muffler.

My suggestion: ear plugs.

mrcarcrazy · 07-22-2009, 08:38 AM

Quote:

Originally Posted by RoadDad

Replacing the snorkel on the airbox will not change the drone of your muffler.

My suggestion: ear plugs.

+1 except my suggestion is change mufflers.

HKFEVER · 07-22-2009, 09:17 PM

But, but, I like the Stage II's howling the most when it runs in high RPM. I heard so many different mufflers in HK, but none have the machincal sound as LTS Stage II has in the high RPM.

So I installed a 10" sub to over come it.

sleepe · 07-22-2009, 11:24 PM

Going from NA to vf2 resulted in a drone-free ride. The IC must have quelled the racket. Expensive solution, but you won't regret it.

-Robert

mrcarcrazy · 07-23-2009, 12:31 PM

Quote:

Originally Posted by HKFEVER

But, but, I like the Stage II's howling the most when it runs in high RPM. I heard so many different mufflers in HK, but none have the machincal sound as LTS Stage II has in the high RPM.

So I installed a 10" sub to over come it.

Then I guess we go back to RoadDad's suggestion.

Forced induction (turbo's in my experience) does seem to quiet drone...(great excuse for a turbo.)

NJdrool · 07-23-2009, 01:30 PM

Drive it over 4K all the time

I wear earplugs with my stage II if I am taking a long highway ride.

Arnie · 07-23-2009, 08:00 PM

I would like to hear the difference between the stage II and the Von Hep which I have

HKFEVER · 07-24-2009, 09:19 PM

If anyone that are capable to open up a LTS Stage II and replace the insulation material to a non compacted material (when hot) then it will be perfect.

Or simply copy the LTS II with better insulation material.

07-21-2009, 12:45 PM	#1 (permalink)
brgelise Registered User Join Date: Sep 2005 Location: CT Posts: 349	Stage 2 needs slight detune Stage 1 a few years back, I removed the silencer with the stock exhaust, because it was acting like a vacuum sweeping the road into the filter. Stage 2 this spring I installeda Stage 2 and love it except, I'm thinking I want some silencer effect back to minimize the 3400-3800 rpm drone somewhat. Any ideas?? Reinstall 1/2 of the silencer or a short downturned smooth tube with trumpet on the end? __________________ 05 Lotus Elise Sport Hardtop LRG red leather. 04 Skip Barber Race School, Competition certificate; 04 Jaguar XJ Vandan Plas Radiance Red Ivory leather 08 Isuzu Ascender Lux 08 BMW X5 3.0Si Monaco Blue, Sand Biege, loaded

07-22-2009, 07:10 AM	#2 (permalink)
HKFEVER Registered User Join Date: Jan 2009 Location: Hong Kong Posts: 314	Stage II is fine when it's cold, but serious droning when is hot especially under load around 4000RPM. The problem is coming from the insulation material in the muffler. __________________ 2008 Exige S Sport in HK (S240) almost stock.

07-22-2009, 08:22 AM	#3 (permalink)
RoadDad perfututum futūtor Join Date: Dec 2006 Posts: 6,031	Replacing the snorkel on the airbox will not change the drone of your muffler. My suggestion: ear plugs. __________________ "Really, you want to maintain a semblance of professionalism since you represent Lotus. Me... I don't need to. Bite me." -Randy

07-22-2009, 09:17 PM	#5 (permalink)
HKFEVER Registered User Join Date: Jan 2009 Location: Hong Kong Posts: 314	But, but, I like the Stage II's howling the most when it runs in high RPM. I heard so many different mufflers in HK, but none have the machincal sound as LTS Stage II has in the high RPM. So I installed a 10" sub to over come it. __________________ 2008 Exige S Sport in HK (S240) almost stock.

07-22-2009, 11:24 PM	#6 (permalink)
sleepe Registered User Join Date: Jan 2007 Location: Rehoboth Beach, DE Posts: 1,049	Going from NA to vf2 resulted in a drone-free ride. The IC must have quelled the racket. Expensive solution, but you won't regret it. -Robert __________________ Elise'06ST:RAC/r888-Ultradiscs-Larini 8"-Braille-Saikou Michi cans-Nitron sportpro-RTVbrace-widened undertrays-manly's motor inserts-FF engine damper VF2

07-23-2009, 01:30 PM	#8 (permalink)
NJdrool Finally Join Date: Mar 2007 Location: NJ Posts: 479	Drive it over 4K all the time I wear earplugs with my stage II if I am taking a long highway ride. __________________ Bob in NJ 06 Sport Elise # 23 Stage II/Micromirror/Green wire mod/S111 tow hook/BWR front plate holder/Green filter/desnorkled/HID's-Hi & Low/Stealth Bulbs.

07-23-2009, 08:00 PM	#9 (permalink)
Arnie Registered User Join Date: Jan 2008 Location: Hong Kong Posts: 98	I would like to hear the difference between the stage II and the Von Hep which I have

07-24-2009, 09:19 PM	#10 (permalink)
HKFEVER Registered User Join Date: Jan 2009 Location: Hong Kong Posts: 314	If anyone that are capable to open up a LTS Stage II and replace the insulation material to a non compacted material (when hot) then it will be perfect. Or simply copy the LTS II with better insulation material. __________________ 2008 Exige S Sport in HK (S240) almost stock.

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