Harrop twin screw sc for s65

[ashtaron14]

Dyno from last week, disregard the 1.2 tcf.

Stock Cats
467hp @ 7677
369tq @ 4756

[GabeS]

Originally Posted by Top_Gear

Sorry but the whining sound out this supercharger needs to be suppressed to get interest from some of us older drivers. Last thing we need is to have our car sound like a siren as we are pulling up to a fine restaurant or a professional place of business and getting the WTF-look.

Put me on the list after Harrop has figured out a solution for this one. You can say I am a fan of the powerband but not a fan of the whine

ROFL at this kind of comment....
"Sorry but your lemons taste too much like lemons, I need you to make them taste like prunes instead"
WTF, it's a supercharger, they are suposed to whine, you dont like it, look at something else.

Superchargers are known for their whine and they have done it for many many years so the old comment doesn't apply.

[Alex07M3]

Originally Posted by GabeS

ROFL at this kind of comment....
"Sorry but your lemons taste too much like lemons, I need you to make them tatse like prunes instead"
WTF, it's a supercharger, they are suposed to whine, you dont like it, looks at something else..

Superchargers are known for their whine and they have done it for many many years so the old comment doesn't apply.

In fact, many cars that come from factory with this kind of supercharger don't make that much noise unless you put an after market intake, I think it would be great for the costumers to have the choice to have it noisy or not. Personnaly, I don't care for the noise but I can also see why some would prefer their car without it.

[JEllis]

Originally Posted by Alex07M3

In fact, many cars that come from factory with this kind of supercharger don't make that much noise unless you put an after market intake, I think it would be great for the costumers to have the choice to have it noisy or not. Personnaly, I don't care for the noise but I can also see why some would prefer their car without it.

My dad used to a drive a Harley F150 with the SCd 5.4L motor and it whined like crazy. So did my buddies Lightning truck, again with the SCd 5.4L. However, it only whined under load. Under normal driving, or especially when pulling up to a resturaunt, there was no added noise.

[GabeS]

Originally Posted by Alex07M3

In fact, many cars that come from factory with this kind of supercharger don't make that much noise unless you put an after market intake, I think it would be great for the costumers to have the choice to have it noisy or not. Personnaly, I don't care for the noise but I can also see why some would prefer their car without it.

Factory cars, yes.. we are talking about an aftermarket SC, specifically this type of SC which is known to whine..
I prob came off a bit harsh, but it is what it is.

[DaveDee]

Originally Posted by JEllis

My dad used to a drive a Harley F150 with the SCd 5.4L motor and it whined like crazy. So did my buddies Lightning truck, again with the SCd 5.4L. However, it only whined under load. Under normal driving, or especially when pulling up to a resturaunt, there was no added noise.

Mine has been on almost a year, I have an aftermarket air filter which makes it a LOT noisier but again, driving normally there is very little whine (even with the aftermarket filter) just like there is no blow off sound when driving a centri unless it's under load.
I'll put the stock air filter back in and post some vids for those who want one and are worried about the noise, but its sort of like wanting a loud exhaust without any drone at any time.

Here is a clip of the Harrop car at a track day, taking off from the pits and fly past to give some idea of noise

[thgem72]

This will help and is appreciated. Regarding the supercharger itself, it's in every recent vintage S4 on the road. How many are even aware? It's attenuation not elimination of the inherent sound that I believe most are hoping for.

[Alex07M3]

Originally Posted by GabeS

Factory cars, yes.. we are talking about an aftermarket SC, specifically this type of SC which is known to whine..
I prob came off a bit harsh, but it is what it is.

I'm not 100% sure but some people might look at supercharging their cars for other reasons then sound!

[GabeS]

Originally Posted by Alex07M3

I'm not 100% sure but some people might look at supercharging their cars for other reasons then sound!

Just like some people only eat veggies for nutrition not their flavor... but it still isn't gonna taste like steak...
you order veggies they will taste like veggies... you dont like veggies you order something else... rofl...


Edit: I just watched the videos of it on the track.. wow! it sounds amazing!! the whine matches perfectly with the sound of the S65!!!!

[squartus]

It prob is the loudest of all the superchargers, the whine is a bit much for a DD but if he wants power with less noise just go with ESS or AA etc. Lots O fish in the sea so to speak.

[ashtaron14]

Watch some Challenger/Charger Hellcat Flyby Videos, it sounds exactly like it from the front of the car.

[Alex07M3]

Originally Posted by GabeS

Just like some people only eat veggies for nutrition not their flavor... but it still isn't gonna taste like steak...
you order veggies they will taste like veggies... you dont like veggies you order something else... rofl...


Edit: I just watched the videos of it on the track.. wow! it sounds amazing!! the whine matches perfectly with the sound of the S65!!!!

There's more then one way to eat veggies!

[xpunisherx]

Originally Posted by Alex07M3

I'm not 100% sure but some people might look at supercharging their cars for other reasons then sound!

...performance?

[thgem72]

Trying to package it in a way more people can make use of it is what (I think) some of us were hoping for. This is not a question of performance. I don't blame them but Harrop likely has not given as much consideration to this as would an OEM (using the same product). I would assume they don't have to or that it doesn't make business sense to do so, but for personal reasons wish they, and it, did.

[Limey]

Thought I'd share my latest dyno for those interested in this kit.

EAS Dynojet w/ STD Smoothing. Running on 100 Octane: 507 whp / 379 wtq

Running Harrop Supercharger Stage 1, Challenge Sport X Pipe w/ high flow cats, Remus Sport Muffler, stock air intake.

[C|3R1C]

This is my dyno from today as well: MS Xpipe catless, AFE drop in filter (dry), AA catback, and Harrop SC. I was using Chevron 91.

It was very nice meeting you today Limey!

[saxonb]

Great numbers.

Looking forward to seeing ARH long tube headers fitted and tuned with this kit.

[Limey]

Originally Posted by C|3R1C

This is my dyno from today as well: MS Xpipe catless, AFE drop in filter (dry), AA catback, and Harrop SC. I was using Chevron 91.

It was very nice meeting you today Limey!

You too mate

Originally Posted by saxonb

Great numbers.

Looking forward to seeing ARH long tube headers fitted and tuned with this kit.

I'm already looking into this

[JAYBLS]

Grammar: the difference between "knowing your shit" and "knowing you're shit."

[WickedE93]

Originally Posted by JAYBLS

Grammar: the difference between "knowing your shit" and "knowing you're shit."

LMAO, quite a huge difference there!

[R_lara]

Originally Posted by Mike Benvo

Haven't started, just interested in seeing it materialize with our without my involvement. Had a cool tuning conversation with Jason from Aviva @ Bimmerfest.

yes?

[BPMSport]

Originally Posted by R_lara

yes?

I wasn't able to discuss my involvement at that point until the partnership was finalized

I've thoroughly enjoyed working with Harrop on the software development of this kit, and couldn't imagine my car without this OEM grade fine piece of machinery...

The torque is just sublime.