Does anyone use gear to gear timing?

e3sean · December 24th, 2007, 03:29 PM

i thought about getting it cause i herd it sounds sweet but figured if i would ask the pros and cons?
is it as reliable as a chain?
is there anything special i need for it? (other than the gears)

Goblin · December 24th, 2007, 03:31 PM

Dont waste your time. Gears transfor alot of harmonics to the valvetrain. Stick with the chain.

1slo5.0 · December 24th, 2007, 03:47 PM

No, not many use gear drives. Cheap construction, inaccurate cam timing, bad harmonics are just a few of the cons. There are no pros.

e3sean · December 24th, 2007, 03:49 PM

Originally Posted by Darrell

No, not many use gear drives. Cheap construction, inaccurate cam timing, bad harmonics are just a few of the cons. There are no pros.

nuff said thanks i am glad i asked

JBIGBOOTSY · December 24th, 2007, 04:16 PM

I have been searching on the internets, and I can find no actual proof gear drives hurt performance. would the hyd. lifters absorb gear drive harmonics? The harmonics spoken of would negatively affect the valve springs? I am curious about this if anyone has some info please help.

e3sean · December 24th, 2007, 04:25 PM

i googled a few forums where ppl had the same question and there were alot of negitive responses from ppl who said they had them.. and a few ppl said it set off their knock sensors.. ill stick to the chain since i already have it.

1slo5.0 · December 24th, 2007, 04:34 PM

Originally Posted by JBIGBOOTSY

I have been searching on the internets, and I can find no actual proof gear drives hurt performance. would the hyd. lifters absorb gear drive harmonics? The harmonics spoken of would negatively affect the valve springs? I am curious about this if anyone has some info please help.

Search harder.

No, hydraulic lifters won't absorb the harmonics.

Install a gear drive sometime and you will see how bad the slop is between the idler gears and the cam/crank gear. Gear drives are bad news.

JBIGBOOTSY · December 24th, 2007, 09:41 PM

I'm not saying they are sliced bread, I was just looking for some data.

78mach1 · December 24th, 2007, 11:14 PM

ya i dont like them much anymore, everyone says it sounds like a supercharger, but if my car is going to sound super charged,........IT BETTER BE SUPERCHARGED!

i had a pete jackson for a while, i didnt like the constant wineing

i think the only con is really accurate timing, but i dont know if thats the truth or something i just heard

e3sean · December 25th, 2007, 01:52 AM

Originally Posted by 78mach1

i think the only con is really accurate timing, but i dont know if thats the truth or something i just heard

wouldnt really accurate timing be a pro not a con???

78mach1 · December 26th, 2007, 09:57 PM

Originally Posted by e3sean

wouldnt really accurate timing be a pro not a con???

oh haha ya.....sorry i was really tired

Stangzilla · December 26th, 2007, 10:31 PM

Originally Posted by 78mach1

ya i dont like them much anymore, everyone says it sounds like a supercharger, but if my car is going to sound super charged,........IT BETTER BE SUPERCHARGED!

i had a pete jackson for a while, i didnt like the constant wineing

i think the only con is really accurate timing, but i dont know if thats the truth or something i just heard

How could the timing be accurate if Darrell said there is excessive slop between gears?

Stangzilla · December 26th, 2007, 10:33 PM

Originally Posted by 78mach1

ya i dont like them much anymore, everyone says it sounds like a supercharger, but if my car is going to sound super charged,........IT BETTER BE SUPERCHARGED!

i had a pete jackson for a while, i didnt like the constant wineing

i think the only con is really accurate timing, but i dont know if thats the truth or something i just heard

Its something you herd...

woody1 · December 26th, 2007, 10:39 PM

ask yourself why grumpy jenkins used nylon cam gears in his pro stock motors, then you will have your answer

Stangzilla · December 26th, 2007, 10:57 PM

Originally Posted by woody1

ask yourself why grumpy jenkins used nylon cam gears in his pro stock motors, then you will have your answer

Yeah you are right but those were prob custom precision cut gears. The ones that are readily available are not as precise.. I have only myself had seen 2 sets on friends cars over the years and i can remember them taking them off after like 3 months tops..

Stangzilla · December 26th, 2007, 10:59 PM

he said Grumpy Jenkins.. Smokey Yunick,Hambone Reed.. Where do they get the names from....?

woody1 · December 26th, 2007, 11:57 PM

Originally Posted by Stangzilla

Yeah you are right but those were prob custom precision cut gears. The ones that are readily available are not as precise.. I have only myself had seen 2 sets on friends cars over the years and i can remember them taking them off after like 3 months tops..

unfortunately I was not saying he used a gear drive/dogbone setup, he used a run of the mill timing chain setup with nylon cam gear for precise cam timing and harmonic dampening

Stangzilla · December 26th, 2007, 11:58 PM

Originally Posted by woody1

unfortunately I was not saying he used a gear drive/dogbone setup, he used a run of the mill timing chain setup with nylon cam gear for precise cam timing and harmonic dampening

Shows how much I know about about timing gears or care about..lol
How bout those freekin names though?!!!!

1slo5.0 · December 27th, 2007, 06:53 AM

Originally Posted by woody1

unfortunately I was not saying he used a gear drive/dogbone setup, he used a run of the mill timing chain setup with nylon cam gear for precise cam timing and harmonic dampening

I don't remember if that was Grumpy Jenkins or one of the other big name engine builders but I remember one of them saying at high rpm they picked up a few horsepower because the nylon would actually compress enough to retard cam timing.

Goblin · December 27th, 2007, 11:48 AM

Originally Posted by Stangzilla

Shows how much I know about about timing gears or care about..lol
How bout those freekin names though?!!!!

These names are guys that have done the dirty work, so guys like us can enjoy the fruits of their labor and R&D. Smokey Yunick was caught up in NASCAR in the mid-late 60s. Bill "Grumpy" Jenkins ran prostock in the late 60s, early 70s.. and after, and was a small-block chevy genious. Guys like Buddy Morrison, and David Reher (Reher Morrison), Bill Kuhlman.. Gene Fultan, Jon Kasse... Ed Pink.. all these guys have built amazing engines, and have been involved with NASCAR, NHRA, IHRA... and lots of other racing associations. These guys started it all. Where do i get these names. Well.. my dad was around when these guys were kings. And history books. Plus, alot of them are still around today, still building SERIOUSLY badass engines.

December 24th, 2007, 03:29 PM	#1
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,609 iTrader: 0 reviews	Does anyone use gear to gear timing? i thought about getting it cause i herd it sounds sweet but figured if i would ask the pros and cons? is it as reliable as a chain? is there anything special i need for it? (other than the gears)

December 24th, 2007, 03:31 PM	#2
Goblin Hardcore Enthusiast 88mm Join Date: Apr 2007 Location: Tucson, AZ Posts: 2,111 iTrader: 0 reviews	Dont waste your time. Gears transfor alot of harmonics to the valvetrain. Stick with the chain. __________________

December 24th, 2007, 03:47 PM	#3
1slo5.0 MM Ninjas! 1990 Mustang LX 9.36@143 mph Join Date: Jan 2006 Location: North Fond du Lac, Wisconsin Posts: 11,375 iTrader: 1 reviews	No, not many use gear drives. Cheap construction, inaccurate cam timing, bad harmonics are just a few of the cons. There are no pros. __________________ My daily driver has 16 cylinders and 4400hp @ 1000 rpm.... ***1988 Mustang GT - Stock....almost

December 24th, 2007, 04:16 PM	#5
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,391 iTrader: 0 reviews	I have been searching on the internets, and I can find no actual proof gear drives hurt performance. would the hyd. lifters absorb gear drive harmonics? The harmonics spoken of would negatively affect the valve springs? I am curious about this if anyone has some info please help. __________________ Bolt-on Abraham Lincoln Log motor. With extra wiring.

December 24th, 2007, 09:41 PM	#8
JBIGBOOTSY MM Fanatic 1990 LX hatch Join Date: Aug 2006 Location: Hobart Indiana Posts: 4,391 iTrader: 0 reviews	I'm not saying they are sliced bread, I was just looking for some data. __________________ Bolt-on Abraham Lincoln Log motor. With extra wiring.

December 24th, 2007, 04:25 PM	#6
e3sean I Post Entirely Way Too Much 1988 lx 9.68@142 Join Date: Nov 2007 Location: goldsboro NC Posts: 5,609 iTrader: 0 reviews	i googled a few forums where ppl had the same question and there were alot of negitive responses from ppl who said they had them.. and a few ppl said it set off their knock sensors.. ill stick to the chain since i already have it.

December 24th, 2007, 11:14 PM	#9
78mach1 Hardcore Enthusiast Join Date: Oct 2007 Location: utah Posts: 1,365 iTrader: 0 reviews	ya i dont like them much anymore, everyone says it sounds like a supercharger, but if my car is going to sound super charged,........IT BETTER BE SUPERCHARGED! i had a pete jackson for a while, i didnt like the constant wineing i think the only con is really accurate timing, but i dont know if thats the truth or something i just heard

December 26th, 2007, 10:39 PM	#14
woody1 Enthusiast Join Date: Nov 2006 Posts: 559 iTrader: 0 reviews	ask yourself why grumpy jenkins used nylon cam gears in his pro stock motors, then you will have your answer

December 26th, 2007, 10:59 PM	#16
Stangzilla MM Fanatic Join Date: Aug 2006 Location: On my way to Baines's house!! Posts: 3,298 iTrader: 0 reviews	he said Grumpy Jenkins.. Smokey Yunick,Hambone Reed.. Where do they get the names from....? __________________ Rotating The Earth 1320 Feet At A Time!! Today, I found out that when I masturbate at night while watching internet porn I cast a huge shadow on the curtain and the entire street is able to see it.

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