straight cut vs helical gears (Procharger)

Est98SS · 05-06-2018, 10:57 PM

I've been seeing prochargers on other cars make a very high pitched shrieking noise that seems pretty loud but I haven't noticed this on any 6th gens since I haven't seen any in person. For people who have the straight cut gears how bad is it at idle? And for people with helical gears does it still make the same nice induction noise or is it toned down?

Zings_Maro · 05-06-2018, 11:12 PM

I can hear the gears turning with my helical gear setup, on my p1sc. I like the sound of it, but to the average non car enthusiast, it sounds like something is wrong with my engine lol

Dysan911 · 05-07-2018, 06:45 AM

Personally I think the Heli cut gears are the right amount of sound. I've had a surprisingly number of people who hear me pull up at like a gas station, drive thru, parking lots, etc ask me if it's a turbo or supercharger.

You'd be surprised that more people than you realize know what that whistle is. lol

tireslayer0331 · 05-07-2018, 08:33 AM

I have a D1SC with straight cut gears, it's most loud at idle, it makes a few strange noises driving around at low RPMS also. The noise is like a rattle from the lash in the gears when it's not under load. I know your tuner can change the idle on your tune to quiet it down a little. I got my system used, if I got it new I would have opted for helical. My hearing is horrible though so it doesn't bother me much at all.

Cdflyer · 05-07-2018, 12:34 PM

I have a straight cut P1SC. It’s loud at idle, with the hood open. Close the hood with track mode on the NPP, you almost couldn’t hear it. It whistles a bit at upper rpm, but the exhaust drowns it out. I hear the airflow itself over the gear noise. At the track, with other cars running, you don’t hear it at all.

MR 45TH · 05-07-2018, 07:26 PM

Quote:

Originally Posted by Dysan911

Personally I think the Heli cut gears are the right amount of sound.

Completely agree

parbreak · 05-07-2018, 08:12 PM

Helical on my P1X. Perfect amount of sound.

05-06-2018, 10:57 PM	#1
Est98SS Drives: 2016 Camaro 2SS M6 Join Date: Nov 2016 Location: Bay Area Posts: 153	straight cut vs helical gears (Procharger) I've been seeing prochargers on other cars make a very high pitched shrieking noise that seems pretty loud but I haven't noticed this on any 6th gens since I haven't seen any in person. For people who have the straight cut gears how bad is it at idle? And for people with helical gears does it still make the same nice induction noise or is it toned down?

05-06-2018, 11:12 PM	#2
Zings_Maro Drives: 2017 Krypton Green 2SS Join Date: Sep 2017 Location: Inland Empire Posts: 47 View My Garage	I can hear the gears turning with my helical gear setup, on my p1sc. I like the sound of it, but to the average non car enthusiast, it sounds like something is wrong with my engine lol __________________ Instagram: @zings_maro

05-07-2018, 06:45 AM	#3
Dysan911 Drives: 2017 50th Anniversary 2SS Join Date: Sep 2016 Location: Jacksonville, FL Posts: 930	Personally I think the Heli cut gears are the right amount of sound. I've had a surprisingly number of people who hear me pull up at like a gas station, drive thru, parking lots, etc ask me if it's a turbo or supercharger. You'd be surprised that more people than you realize know what that whistle is. lol __________________ Former Ride: 17 Camaro 2SS, M6 - Fifty \| Procharger P1SC \| 3.7 Pulley \| Stage 2 IC \| Race Bypass \| DSX FF Kit \| JRE Custom E85 Flex Fuel Tune \| LT4 Fuel System \| JMS Voltage Booster \| MSD Plug Wires \| American Racing 1-7/8's LT Headers Full System Catback \| Baro Breakout Harness \| LT4 Map Sensor \| Katech Ported TB \| MMS Oil Catch Can \| 160 Thermo \| Solo Performance J-Pipes Last edited by Dysan911; 05-07-2018 at 12:36 PM.

05-07-2018, 08:33 AM	#4
tireslayer0331 Drives: 2016 2SS Join Date: Oct 2016 Location: NYC/CT Posts: 85	I have a D1SC with straight cut gears, it's most loud at idle, it makes a few strange noises driving around at low RPMS also. The noise is like a rattle from the lash in the gears when it's not under load. I know your tuner can change the idle on your tune to quiet it down a little. I got my system used, if I got it new I would have opted for helical. My hearing is horrible though so it doesn't bother me much at all. __________________ 2016 Camaro SS- , D1SC, 4.38" pulley, LT4 HPFP

05-07-2018, 12:34 PM	#5
Cdflyer Drives: 2016 1SS 6speed Join Date: Mar 2016 Location: IL Posts: 527	I have a straight cut P1SC. It’s loud at idle, with the hood open. Close the hood with track mode on the NPP, you almost couldn’t hear it. It whistles a bit at upper rpm, but the exhaust drowns it out. I hear the airflow itself over the gear noise. At the track, with other cars running, you don’t hear it at all. __________________ 2016 1SS M6 P1SC Stg II 592rwhp/548rwtq (for now) GForce Outlaw axles & driveshaft, TSP 2” LT’s, turndowns, RTS S71 drag pack with radials.

05-07-2018, 08:12 PM	#7
parbreak Drives: 2017 50th Camaro SS Join Date: Jul 2016 Location: Maryland Posts: 525	Helical on my P1X. Perfect amount of sound. __________________ 50th Anniversary Edition \|Borla Atak and 60606 mid pipes\| Kooks 1 7/8" \| ProCharger Stage II \|305/45/17 DRs \| Circle D 3500 stall \| LT4 fueling \| Custom made Lowside Aux Pump \| Alky Control Meth \| DSX E85

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