Hey guys.
I want to get a noisy gear drive for my 350. I can't find any that are machined for noisy and for roller engines. Does anybody know of any?
Also, the added noise, will it affect any sensors, say the knock sensor? Any other adverse effects of this I should consider?
thanx in advance.

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'88 RS (originally 2.8)
-350, .040 over, vette alum. L98s, stock tpi.
-305 injectors & chip
-TES headers & edelbrock cat back
-3.73 gears, 700r4.
Best with 2.8-17.4@77mph
Best with 305-15.0@93mph
Best with 356-13.7@101mph
on a 2.050 60 ft.
(Damn the 2.8!)
<img>http://www.geocities.com/gillowtex/outside12-small_engine_copy.jpg</img>

 

Many people have run the quiet gear drives with no false knock problems to speak of. I don't recall offhand any comments about noisy gear drives w/ knock sensor cars (flat tappet) or or noisy drives for roller block engines.
If you don't get any responses, try a search

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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.8 @ 93.1
Stock except ported plenum and dual cats
-=ICON Motorsports=-

- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die

 

I'm not aware of any noisy gear drives for roller cam blocks. IMO the quiet one is plenty noisy.

 

Noisy gear drives DO affect your knock sensor, and will create false knock situations.

 

just as a warning, 90% of the people that buy the noisey gear drive think its cool for about the first couple of days then it gets old

 

I had the DynaGear noisy gear drive in my 84 406 Monte SS & loved it...drove it almost daily & never grew tired of it...I'm going to use a gear drive in my next engine but haven't seen a noisy one for roller motors. Would it be possible when programming a new chip to get rid of the knock sensor?

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'91 Z28 1LE; 355, Sportsman II heads, Edelbrock TPI w/ 58mm TB, Tremec TKO 5-speed, 3.73's & much, much more

 

Thanx guys.
I think I'll go with the quiet one then, I'm not looking for a huge whine, but a small one would be nice, and it sounds like the quiet drive will deliver that. I was under the impression that the quiet drives had no noise at all.

ED1le-you don't want to get rid of your knock sensor, maybe desensitize it, but it is a good safety to have.

 

They currently do not make a noisy gear drive for a roller cam.

I have been driving my car since 97 with a Pete Jackson quiet gear drive and I love it...

No false knocks either... That is just a myth....

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13.2 @ 102.6MPH 60 degrees w/ still no tuning on motor

Sportsman II, Gear drive, Perf. Res. chip, SLP 1 3/4" headers, Edelbrock muffler, Trans-go stage 3, Vigilante 9.5", Functional Ram Air hood, SLP roller cam, 24lb ADS injectors, AFPR, 3.45 gears, Stealth intake, 58mm setup, Spohn suspension, and other goodies...


raven

Custom EFI Intake Setup

 

i've heard that a gear drive transfers the vibrations to the valve train, is there anytruth in that?

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91z28 350tpi auto runs 14.3

 

I'd say theres alot of truth in that, theres *almost* no way for any of the crankshaft movements to be absorbed by the setup. The Pete Jackson setup at least has a slight amount of movement that could absorb some of the harmonics before it gets to the cam although I cant say for sure if it makes it to the valves or not. Thats the story why racers with lots of extra cash use belt drives instead.

When my valvetrain fails (if ever), Ill take a look at it.

 

Would you guys recommend the gear drives for a daily driven 350 TPI with moderate mods?(valve train ware) Or would it be better off on a weekend racer TPI?

Ive gone to Pete Jacksons website and looked into getting a gear drive for my 88 TPI 350 and they had mentioned that they dont recommned running a gear drive on computer controlled engines. Should I be worried about this? Sorry for the 'rookie' type questions guys but I need to know since Im also interested in getting one myself.

 

Question 1: Why do you want one?

Question 2: There isnt one

The standard response is that it will set off the knock sensor on a computer controlled car. I have no problems, neither does Willie, and there are some other people who have not had problems as well... this is with the "quiet" drive. I have yet to hear of someone with a problem. I cant speak for the noisy one though.

 

u could always go w/ a belt drivin but those are high dollar

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91z28 350tpi auto runs 14.3

 

madmax,

I guess Im sold to the idea of having perfect timing and also my friend has one in his 72 camaro and I love the whine it gives. Thanks for the input there madmax. Guess Im gonna have to go with a double roller.