QuickSilver Exhaust - Page 4 - LotusTalk

Cisitalia · 01-29-2005, 12:14 PM

Dan,

So cruising around town or 70-80 mph on the hwy at lower rpms it is perfectly ok. Just higher rpms it is louder or at the track. That sounds acceptable to me. Any feel of the pants performance increase?

Thanks,

Brad

atyclb · 01-29-2005, 12:15 PM

Quote:

Originally posted by Cisitalia
Dan,

Thanks for the picture. I was thinking about getting the QS exhaust. Now that it is broken in are you still happy with it? Not to loud and no drown or resonance?

Thanks for the information.

Brad

mine is fairly new and I am becoming more and more pleased with it every day.

it is breaking in very nicely

eliseowner2b · 01-29-2005, 01:58 PM

Quote:

Any feel of the pants performance increase?

Unfortunately, that is really hard to tell. I hadn't driven the car in 2 weeks (Thanksgiving vacation) so I had really lost a feel for the acceleration. If I had to guess on hp I'd say it made a few.

theob · 01-29-2005, 11:39 PM

Quote:

Originally posted by Cisitalia
So cruising around town or 70-80 mph on the hwy at lower rpms it is perfectly ok. Just higher rpms it is louder or at the track. That sounds acceptable to me. Any feel of the pants performance increase?

Since QS, and Lotus Stage 2 are almost identical, both in the looks and performance, I could say that what you get is a slight power increase you'll definitely feel on higher revs, where the engine sings!

Either of the two are definitely a very good VFM, and will make you smile when you thrash the pedal to the floor!

And trust me, you'll do it more often than before! It simply makes your day!

Indeed, cruising around town or at the speeds you mentioned aren't a nuisance for anyone. The only nuisance will be in your mind then, because you'll get addicted from the exhaust note, and you'll want to play a bit more with the gas pedal.

Have fun,

Theo

adamant · 01-30-2005, 09:31 AM

I have the QS and posted comparison dyno results here somewhere. I love the sound of mine and I am not one that wanted it for that purpose. It is lighter but it really makes no difference in performance (none of them do!). But, be sure, it IS louder! Not in the Harley league though. IMO most of the sound energy is in much lower frequencies than stock, so mine sounds quieter than stock at idle. However when crossing to the upper cams you can really hear the sound change and a wonderful burble when it witches back

shay2nak · 01-30-2005, 03:05 PM

IIRC from the dynos was that stage 2 didn't add any power and that the QS actually lost 1 hp or so.

eliseowner2b · 01-30-2005, 06:09 PM

I think the main difference in the sound is the fact that the QS exhaust lets the sound leave the car via the exhaust while the stock exhaust made the engine sound louder. I doubt that it caused an hp loss as my times at Road Atlanta got better after I got the exhaust. At the same time I can say that I was a lot more used to the car at the second event so this may be the main reason for 2-3 second better lap times.

PeterF · 02-04-2005, 02:08 AM

Quote:

Originally Posted by shay2nak

IIRC from the dynos was that stage 2 didn't add any power and that the QS actually lost 1 hp or so.

Here's the QS dyno http://www.elisetalk.com/forums/showthread.php?t=7251

It says about +6 hp.

Cisitalia · 02-04-2005, 08:56 PM

Thanks, I needed that.

QS soon to be ordered, checkbook lighter, Elise lighter, sounds better and maybe a few ponies.

Brad

adamant · 02-06-2005, 09:25 AM

I guess you can believe what you want. I tested my QS installation and the HP difference is pretty much a wash. Certainly NOT a 6HP gain
Dyno test
Still love it though

Surferjer · 02-25-2005, 07:08 AM

How do I attach an AVI file? I have a brief one (2-3 seconds) but the QS can be heard.

elise seeker · 03-05-2005, 05:38 PM

just replaced mine with quicksilver sport (the latest version), it took myself and a friend 2 hours. we didn't need to take off a wheel, just the rear diffuser/air dam thing. it's tight under there, but it wasn't hard to work on. it was harder to remove stock than to drop in the quicksilver!

the stock exhaust is HUGE... and heavy. quicksilver just looks like the right size. I'm really surprised the stock was the size it is.

sound impressions. it is louder than stock. and quiter than stock. let me explain.

at idle, it is deeper but as quiet. at 3-4k, cruising, it is quieter than stock. at 2800, it is dead silent. almost impossible to tell the car is running.

This all changes at higher rpms; more rounded sound and louder. low rpms are much louder too, if you are accelerating. the noise level is a function of acceleration, not rpm's. makes sense. popping is cool, but isn't that a euphemism for backfiring? I know nothing about cars.

it's hard to explain, it just sounds tougher than before. interestingly, throttle at low rpms for a slow, smooth launch from a stop is MUCH better. before, it had a tendency to lug if you were light with the gas, now it is much smoother down low. As for response througout the range, I think audio feedback helps immensely... 5krpm before sounded strained, I had a habit of not keeping the rpm's higher unless accelerating really hard; sounds more consistent now, I don't cringe thinking I'm straining it now.

haven't heard anything but stock and QS, but now way was I modifying the car, so it was my only choice. I like it. go for it.

I'll have a means to do a high-quality recording next weekend.

JimK · 03-05-2005, 08:08 PM

I took delivery of my car with QS already installed. I drove a demo months ago (with stock exhaust)and as I recall it was quieter and tamer sounding.
I get many positive comments on the QS exhaust note, It sounds kind of like a cross between a sport bike and a Ferrari, really wails in the cams. I've noticed more popping and burbling lately, very much like a race exhaust.
IMHO, the QS exhaust has really added to the joy of driving the Elise, I'd
recommend it.

Zifrid · 03-06-2005, 10:33 AM

I really want my Elise after watching those videos... Thanks alot for sharing

Surferjer · 03-07-2005, 06:45 PM

The QS (Stage 2 is nice too) Makes the car sound as badass as it looks.

Johnny B · 03-07-2005, 08:26 PM

Quote:

Originally Posted by Surferjer

The QS (Stage 2 is nice too) Makes the car sound as badass as it looks.

Oh yeah!!!!

delliott00 · 03-07-2005, 09:23 PM

I agree with Jer, the Quicksilver gives the Elise attitude. The sound of the car now matches its looks. With the stock exhaust, it sounded ok but too mechanical.

I've driven both QS and Stage II exhausts, both sound excellent. To me, it came down to the QS because its cheaper, lighter, and requires no modification to the undertray.

Installation of either would be easy but the QS is easier without having to cut the tray. Took us about 1.5 hrs.

-Dave

Crudson · 09-23-2005, 02:29 PM

I got my Quicksilver delivered today

Jerry will help me install it on Sunday so in the meantime I was looking for anything Quicksilver and found these great clips. If people haven't seen them it's worth it!

Quote:

Originally Posted by eliseowner2b

Here are some "alleged" videos:

http://www.cpdserver.com/elisetalk/video/Dan/qs3.mpg

http://www.cpdserver.com/elisetalk/video/Dan/qs2.mpg

http://www.cpdserver.com/elisetalk/video/Dan/qs1.mpg

Thanks Randy,

DP

Surferjer · 09-26-2005, 03:35 AM

Well, we got Doug's QS in last night. Took about 2 hours but we worked leisurely, and also ended up pulling the service panel for a looksee at the surface of it and the engine. There was a small oil leak from his filter, which I hope we tightened up enough.

If we just focused on the exhaust, we probably could have finished it in an hour. The thing sounds great, and I hope Doug's happy.

On the test spin Doug let me drive a bit and I got her momentarily sideways on those bald 48s! A bit of pucker-sorry Doug!

vortrex · 09-26-2005, 06:32 AM

I would love to hear a QS live in person, someday we'll have to meet up.

01-29-2005, 12:14 PM	#61 (permalink)
Cisitalia Registered User Join Date: Oct 2004 Location: Charlotte, NC Posts: 362	Dan, So cruising around town or 70-80 mph on the hwy at lower rpms it is perfectly ok. Just higher rpms it is louder or at the track. That sounds acceptable to me. Any feel of the pants performance increase? Thanks, Brad __________________ 2005 Lotus Elise, Magnetic Blue with blue leather, Touring, Hard Top, Starshield, SS brake lines, #635 (sold 9/8/05)

01-30-2005, 09:31 AM	#65 (permalink)
adamant Time to DRIVE Join Date: Mar 2003 Location: Salt Lake City Posts: 1,313 Images: 2	I have the QS and posted comparison dyno results here somewhere. I love the sound of mine and I am not one that wanted it for that purpose. It is lighter but it really makes no difference in performance (none of them do!). But, be sure, it IS louder! Not in the Harley league though. IMO most of the sound energy is in much lower frequencies than stock, so mine sounds quieter than stock at idle. However when crossing to the upper cams you can really hear the sound change and a wonderful burble when it witches back __________________ 2006 Exige Chrome Orange

01-30-2005, 03:05 PM	#66 (permalink)
shay2nak I <3 chicken, I <3 liver Join Date: Dec 2003 Location: Land of da 1000 Oaks, CA Posts: 15,053	IIRC from the dynos was that stage 2 didn't add any power and that the QS actually lost 1 hp or so. __________________ save ~10 lbs gain 1 hp EQ: Y=(190X) / (1984-X) where Y is (HP) and X is (lbs) '07 EXIGE S * MY CAR ** VIDEOS! '08 ACURA TSX 6-speed http://www.makeNYNYagain.com

01-30-2005, 06:09 PM	#67 (permalink)
eliseowner2b Registered User Join Date: Jun 2004 Location: Georgia Mtns Posts: 2,293	I think the main difference in the sound is the fact that the QS exhaust lets the sound leave the car via the exhaust while the stock exhaust made the engine sound louder. I doubt that it caused an hp loss as my times at Road Atlanta got better after I got the exhaust. At the same time I can say that I was a lot more used to the car at the second event so this may be the main reason for 2-3 second better lap times. __________________ Dan Parker 92 BMW 325 - JP Race Car 09 Jetta Tdi 06 Z4 M Coupe 09 Child on the way (anyone need a car?)

02-04-2005, 08:56 PM	#69 (permalink)
Cisitalia Registered User Join Date: Oct 2004 Location: Charlotte, NC Posts: 362	Thanks, I needed that. QS soon to be ordered, checkbook lighter, Elise lighter, sounds better and maybe a few ponies. Brad __________________ 2005 Lotus Elise, Magnetic Blue with blue leather, Touring, Hard Top, Starshield, SS brake lines, #635 (sold 9/8/05)

02-06-2005, 09:25 AM	#70 (permalink)
adamant Time to DRIVE Join Date: Mar 2003 Location: Salt Lake City Posts: 1,313 Images: 2	I guess you can believe what you want. I tested my QS installation and the HP difference is pretty much a wash. Certainly NOT a 6HP gain Dyno test Still love it though __________________ 2006 Exige Chrome Orange

02-25-2005, 07:08 AM	#71 (permalink)
Surferjer No more cone damage! Join Date: Dec 2003 Location: Exton, PA Posts: 8,885	How do I attach an AVI file? I have a brief one (2-3 seconds) but the QS can be heard. __________________ Jer-2005 Elise (retired from autox) 1993 MR2 autox car 2002 Ford Excursion DIESEL 4 X 4 1993 Miata (throwout bearing or clutch failure) 1987 Toyota Corolla FX16 Lemons car (needs new head) 1984 Chevy Citation Lemons car (needs a motor)

03-05-2005, 05:38 PM	#72 (permalink)
elise seeker Registered User Join Date: Jan 2005 Location: bay area, CA Posts: 162	just replaced mine with quicksilver sport (the latest version), it took myself and a friend 2 hours. we didn't need to take off a wheel, just the rear diffuser/air dam thing. it's tight under there, but it wasn't hard to work on. it was harder to remove stock than to drop in the quicksilver! the stock exhaust is HUGE... and heavy. quicksilver just looks like the right size. I'm really surprised the stock was the size it is. sound impressions. it is louder than stock. and quiter than stock. let me explain. at idle, it is deeper but as quiet. at 3-4k, cruising, it is quieter than stock. at 2800, it is dead silent. almost impossible to tell the car is running. This all changes at higher rpms; more rounded sound and louder. low rpms are much louder too, if you are accelerating. the noise level is a function of acceleration, not rpm's. makes sense. popping is cool, but isn't that a euphemism for backfiring? I know nothing about cars. it's hard to explain, it just sounds tougher than before. interestingly, throttle at low rpms for a slow, smooth launch from a stop is MUCH better. before, it had a tendency to lug if you were light with the gas, now it is much smoother down low. As for response througout the range, I think audio feedback helps immensely... 5krpm before sounded strained, I had a habit of not keeping the rpm's higher unless accelerating really hard; sounds more consistent now, I don't cringe thinking I'm straining it now. haven't heard anything but stock and QS, but now way was I modifying the car, so it was my only choice. I like it. go for it. I'll have a means to do a high-quality recording next weekend.

03-05-2005, 08:08 PM	#73 (permalink)
JimK rooster Join Date: Oct 2004 Location: Bettendorf, IA Posts: 2,142	I took delivery of my car with QS already installed. I drove a demo months ago (with stock exhaust)and as I recall it was quieter and tamer sounding. I get many positive comments on the QS exhaust note, It sounds kind of like a cross between a sport bike and a Ferrari, really wails in the cams. I've noticed more popping and burbling lately, very much like a race exhaust. IMHO, the QS exhaust has really added to the joy of driving the Elise, I'd recommend it. __________________ curator of C32B, J35Z3, J37A1, F20C. former 2ZZGE owner.

03-06-2005, 10:33 AM	#74 (permalink)
Zifrid Registered User Join Date: Feb 2005 Posts: 162	I really want my Elise after watching those videos... Thanks alot for sharing

03-07-2005, 06:45 PM	#75 (permalink)
Surferjer No more cone damage! Join Date: Dec 2003 Location: Exton, PA Posts: 8,885	The QS (Stage 2 is nice too) Makes the car sound as badass as it looks. __________________ Jer-2005 Elise (retired from autox) 1993 MR2 autox car 2002 Ford Excursion DIESEL 4 X 4 1993 Miata (throwout bearing or clutch failure) 1987 Toyota Corolla FX16 Lemons car (needs new head) 1984 Chevy Citation Lemons car (needs a motor)

03-07-2005, 09:23 PM	#77 (permalink)
delliott00 Registered User Join Date: Oct 2003 Location: Austin TX Posts: 338	I agree with Jer, the Quicksilver gives the Elise attitude. The sound of the car now matches its looks. With the stock exhaust, it sounded ok but too mechanical. I've driven both QS and Stage II exhausts, both sound excellent. To me, it came down to the QS because its cheaper, lighter, and requires no modification to the undertray. Installation of either would be easy but the QS is easier without having to cut the tray. Took us about 1.5 hrs. -Dave

09-26-2005, 03:35 AM	#79 (permalink)
Surferjer No more cone damage! Join Date: Dec 2003 Location: Exton, PA Posts: 8,885	Well, we got Doug's QS in last night. Took about 2 hours but we worked leisurely, and also ended up pulling the service panel for a looksee at the surface of it and the engine. There was a small oil leak from his filter, which I hope we tightened up enough. If we just focused on the exhaust, we probably could have finished it in an hour. The thing sounds great, and I hope Doug's happy. On the test spin Doug let me drive a bit and I got her momentarily sideways on those bald 48s! A bit of pucker-sorry Doug! __________________ Jer-2005 Elise (retired from autox) 1993 MR2 autox car 2002 Ford Excursion DIESEL 4 X 4 1993 Miata (throwout bearing or clutch failure) 1987 Toyota Corolla FX16 Lemons car (needs new head) 1984 Chevy Citation Lemons car (needs a motor)

09-26-2005, 06:32 AM	#80 (permalink)
vortrex Registered User Join Date: Jun 2005 Location: san francisco Posts: 1,200	I would love to hear a QS live in person, someday we'll have to meet up.

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