Timing Chain Gear Drive? What is the advantage? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

boataddict26 · 11-17-2003, 09:22 PM

Has any one used one? What do they do besides make noise?
Michael

*1FaastC10* · 11-17-2003, 09:55 PM

for a high horsepower engine, a gear drive would be acceptable because it would make cam timing more stable than a chain or belt drive. however, on a common street engine, which is what i'm going to assume you're inquiring for, its not worth it. they eat up more power, as well as that ever so annoying whine. believe me, you think it sounds cool now, try driving one for anything longer than 30 minutes, you'll hate it.

boataddict26 · 11-17-2003, 10:25 PM

Thanks Jeremy. That answered some questions I had about them. I am planing on @350-400hp and that is most likely not considerd HIGH enough horsepower to need one. I was wondering about the noise. I quess it would get pretty anoying.

*mike reeh* · 11-17-2003, 10:25 PM

i used to have one on a 327 el camino.. I liked it and it was pretty loud but if you have a loud exhaust, it mixes in pretty well and isnt overwhelming.. the benefit is exact timing and extreme reliability.. the pete jackson "quiet" drive is probably easy to live with.. Id definately get the quieter one if you plan on a lot of driving.. I dont recommend against them, but Id put the $$ into heads, headers, intake, ignition, etc first.. If you're going all out, sure why not.

mike

bpmcgee · 11-18-2003, 02:50 AM

Boat,

I had a gear drive in my daily driver Blazer engine I just removed. The engine I'm putting back in has a chain drive.

Does that tell you anything?

Brian

toytruck · 11-18-2003, 04:01 AM

Well, in the Nova with a tunnel ram, 3in. 40 series flowmasters, and 4:56 gears it really sings. And I like it, but I don't think I would want one in a stock everyday driver. I put it in for timming benfits.

bigd65 · 11-18-2003, 07:51 AM

my neighbor had a gear drive on his camaro (race only) it was cool, it sounded like a blower whine. But (race only) they are annoying after awhile.

Mike76251 · 11-18-2003, 10:01 AM

The worst thing about gears is the Torrington roller bearing behind the upper gear.
It has been known to self-destruct and take the oil pump with it.

bigblock73 · 11-18-2003, 02:27 PM

had a PJ "quiet" one in my small block...it was actually pretty quiet.

Jeremy is right, for a street engine go with a double roller, if it is for race...gear drive.

-Jeff

boataddict26 · 11-18-2003, 06:13 PM

Thanks for all the advice guys. I will go with a good quality double roller.

TwinTurbo · 11-18-2003, 08:37 PM

I run gear drives in 2 engines. They offer a much stabler tiing but they do pass on a lot more vibration and harmonics in the valve train.

A superior system would be the jesel belt drive, reliable, accurate and silk smooth.

9CHEVY4 · 12-12-2003, 02:55 AM

does anyone know where i can get a gear drive?
and how much?
for a 69 c-10 350

any pics would help

*1tonswb* · 12-12-2003, 03:37 AM

I got the pete jackson noisey gear drive in both my trucks. When I turn up the stereo I dont hear them at all. Yes.... both my trucks are driven daily.

stepside454 · 12-12-2003, 04:06 AM

ive never & never would use one even for racing. my 61 Bel Air 409 ran 11.70s with a roller chain, my buddys 81 Camaro tube chassis car runs low 9s in super pro. timing chain. I dont like noises in my engine that shouldnt be there. John

Nvbowtie · 12-12-2003, 10:17 AM

Quote:

Originally posted by 9CHEVY4
does anyone know where i can get a gear drive?
and how much?
for a 69 c-10 350

any pics would help

two sound clips of mine;
http://www.unlimited2u.com/1chevy/eng.wav
http://www.unlimited2u.com/1chevy/eng2.wav

noisy
http://store.summitracing.com/partde...rt=SUM%2DG6700

or quiet one

http://store.summitracing.com/partde...PJJ%2D327%2D1C

boataddict26 · 12-16-2003, 06:42 PM

Thanks for the sound clips. I dont want to hear that every day. You just made up my mind. Thanks.

TwinTurbo · 12-16-2003, 06:56 PM

What kind of gear drive is that sound clip of??

Tom · 12-16-2003, 07:22 PM

I like my gear drive on my 383. You can only hear it at idle or moving slowly, the exaust overwhelms it otherwise. If the gear drive isen't a precise meshing of the gears then you'll have more slop then a timing chain. HP is not a factor for these things. I like it, but most people don't. I wouldn't get another one either.

Nvbowtie · 12-17-2003, 06:10 AM

Quote:

Originally posted by TwinTurbo
What kind of gear drive is that sound clip of??

Cloyes Gear Drive - (noisey)

stepside454 · 12-17-2003, 11:33 AM

Tom, as long as YOU like it, is all that matters. I do things to my truck for ME. Ive had people tell me they dont care for my Vette tail pipe tips out the back, woulda looked better out the side.
There free to put theres out the side of there truck if they like.

AirMale · 12-17-2003, 03:16 PM

Pete Jackson gear drive for my 550cu. I'm installing it on friday!

11-17-2003, 09:22 PM	#1
boataddict26 Registered User Join Date: Mar 2003 Location: North Central Florida Posts: 726	Timing Chain Gear Drive? What is the advantage? Has any one used one? What do they do besides make noise? Michael __________________ 1978 Chevy C10 Currently under resto. 350 Getting face lift. .060, JEpistons, Modify heads. More will come with money.

11-17-2003, 10:25 PM	#3
boataddict26 Registered User Join Date: Mar 2003 Location: North Central Florida Posts: 726	Thanks Jeremy. That answered some questions I had about them. I am planing on @350-400hp and that is most likely not considerd HIGH enough horsepower to need one. I was wondering about the noise. I quess it would get pretty anoying. __________________ 1978 Chevy C10 Currently under resto. 350 Getting face lift. .060, JEpistons, Modify heads. More will come with money.

11-18-2003, 04:01 AM	#6
toytruck 5-7 dropped 87 CC Dually Join Date: Sep 2003 Location: bay city mi Posts: 326	Well, in the Nova with a tunnel ram, 3in. 40 series flowmasters, and 4:56 gears it really sings. And I like it, but I don't think I would want one in a stock everyday driver. I put it in for timming benfits. __________________ I rather be in my 77 Sanger Picklefork Jet Hydro!

11-18-2003, 07:51 AM	#7
bigd65 Registered User Join Date: Mar 2000 Location: Lake Jackson, TX. Posts: 1,930	my neighbor had a gear drive on his camaro (race only) it was cool, it sounded like a blower whine. But (race only) they are annoying after awhile. __________________ 2004 Silverado Crewcab (Dark Spiral Gray)

11-18-2003, 06:13 PM	#10
boataddict26 Registered User Join Date: Mar 2003 Location: North Central Florida Posts: 726	Thanks for all the advice guys. I will go with a good quality double roller. __________________ 1978 Chevy C10 Currently under resto. 350 Getting face lift. .060, JEpistons, Modify heads. More will come with money.

11-17-2003, 09:55 PM	#2
1FaastC10 Account Suspended Join Date: Oct 2002 Location: Elkhart, IN Posts: 6,400	for a high horsepower engine, a gear drive would be acceptable because it would make cam timing more stable than a chain or belt drive. however, on a common street engine, which is what i'm going to assume you're inquiring for, its not worth it. they eat up more power, as well as that ever so annoying whine. believe me, you think it sounds cool now, try driving one for anything longer than 30 minutes, you'll hate it.

11-17-2003, 10:25 PM	#4
mike reeh 5 day ban, learn to behave. Join Date: Nov 2002 Location: san diego, ca Posts: 684	i used to have one on a 327 el camino.. I liked it and it was pretty loud but if you have a loud exhaust, it mixes in pretty well and isnt overwhelming.. the benefit is exact timing and extreme reliability.. the pete jackson "quiet" drive is probably easy to live with.. Id definately get the quieter one if you plan on a lot of driving.. I dont recommend against them, but Id put the $$ into heads, headers, intake, ignition, etc first.. If you're going all out, sure why not. mike

11-18-2003, 02:50 AM	#5
bpmcgee Registered User Join Date: Mar 2003 Location: Northern Illinois Posts: 2,181	Boat, I had a gear drive in my daily driver Blazer engine I just removed. The engine I'm putting back in has a chain drive. Does that tell you anything? Brian

11-18-2003, 10:01 AM	#8
Mike76251 Senior Member Join Date: Mar 2003 Posts: 2,500	The worst thing about gears is the Torrington roller bearing behind the upper gear. It has been known to self-destruct and take the oil pump with it.

11-18-2003, 02:27 PM	#9
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,826	had a PJ "quiet" one in my small block...it was actually pretty quiet. Jeremy is right, for a street engine go with a double roller, if it is for race...gear drive. -Jeff

11-18-2003, 08:37 PM	#11
TwinTurbo Registered User Join Date: Sep 2003 Location: The Netherlands Posts: 994	I run gear drives in 2 engines. They offer a much stabler tiing but they do pass on a lot more vibration and harmonics in the valve train. A superior system would be the jesel belt drive, reliable, accurate and silk smooth.

12-12-2003, 02:55 AM	#12
9CHEVY4 Registered User Join Date: Nov 2003 Location: so cal Posts: 56	does anyone know where i can get a gear drive? and how much? for a 69 c-10 350 any pics would help __________________ http://www.geocities.com/duran_05/9chevy4.html stuff for sale http://community.webshots.com/album/105405455jtRCca

12-12-2003, 03:37 AM	#13
1tonswb Account Suspended Join Date: Nov 2003 Location: Oregon Posts: 300	I got the pete jackson noisey gear drive in both my trucks. When I turn up the stereo I dont hear them at all. Yes.... both my trucks are driven daily.

12-12-2003, 04:06 AM	#14
stepside454 Registered User Join Date: Nov 2003 Location: st. louis area Posts: 1,551	ive never & never would use one even for racing. my 61 Bel Air 409 ran 11.70s with a roller chain, my buddys 81 Camaro tube chassis car runs low 9s in super pro. timing chain. I dont like noises in my engine that shouldnt be there. John __________________ 75 GMC C-15 short/step factory 454, lowered

12-16-2003, 06:42 PM	#16
boataddict26 Registered User Join Date: Mar 2003 Location: North Central Florida Posts: 726	Thanks for the sound clips. I dont want to hear that every day. You just made up my mind. Thanks. __________________ 1978 Chevy C10 Currently under resto. 350 Getting face lift. .060, JEpistons, Modify heads. More will come with money.



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12-16-2003, 06:56 PM	#17
TwinTurbo Registered User Join Date: Sep 2003 Location: The Netherlands Posts: 994	What kind of gear drive is that sound clip of??

12-16-2003, 07:22 PM	#18
Tom driving is in my blood Join Date: Dec 1999 Location: Mesa AZ Posts: 5,730	I like my gear drive on my 383. You can only hear it at idle or moving slowly, the exaust overwhelms it otherwise. If the gear drive isen't a precise meshing of the gears then you'll have more slop then a timing chain. HP is not a factor for these things. I like it, but most people don't. I wouldn't get another one either. __________________ -78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me.

12-17-2003, 11:33 AM	#20
stepside454 Registered User Join Date: Nov 2003 Location: st. louis area Posts: 1,551	Tom, as long as YOU like it, is all that matters. I do things to my truck for ME. Ive had people tell me they dont care for my Vette tail pipe tips out the back, woulda looked better out the side. There free to put theres out the side of there truck if they like. __________________ 75 GMC C-15 short/step factory 454, lowered

12-17-2003, 03:16 PM	#21
AirMale Senior Member Join Date: Jan 2003 Location: Atlantic City, NJ Posts: 1,073	Pete Jackson gear drive for my 550cu. I'm installing it on friday! __________________ 86 SWB 9.0 LITER T-400-OD 4.11 eaton-4/5 drop Best 1/4 12.51 @112mph no traction

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