bad adjustable gears that fail?

[DOUGMO]

i am just about to buy a set of adjustable cam gears and

cannot remember which ones people have had trouble with?

can anyone enlighten me? i have done a search and cannot

narrow it down enough.

also feed back on what you are usuing and where you got them please?

 

[rob323]

http://4gtuner.com/forums/viewtopic.php?t=2173&highlight=cam+gears+attack

 

[GVR40]

AEM=BAD

 

[DOUGMO]

thanks guys

 

[JAP63]

AEM=BAD

Is it worth bagging them for a one off?

thered be thousand of aem gears out there...how many have failed?

I suppose one is too many though


they should never fail..

any other brands failed?

 

[DOUGMO]

unfortunatley it onbly takes one little thing like this to fail
and mash an engine

 

[GVR40]

there have been a few stories go around about AEM cam gears going, and it's the sort of thing that you don't want to have to worry about is this going to break

 

[brisvr4]

Have a look at page 3 of the link above, it took me about 2 minutes of looking to find that other cracked AEM cam gear!

 

[Missile]

:shock:

http://www.honda-tech.com/zerothread?id=1331578

 

[crossam]

for the record i have had AEM gears for 2 years no failure
and i checked when JETGSR's failed

 

[EVO-00X]

Cant think of who it was, but I remember seeing another pic of a cracked AEM camgear on one of the Mitsu forums. It was cracked only on one of the spokes and the owner was lucky they found it before complete breakage. This was around a couple years ago, maybe AEM have revised their gears (metal composition) since then as they used to flex. Are they still making the spokes out of a straight flat section or have they developed a different spoke design? Whichever way, its an awfully big risk for people to buy them after seeing what has happened in the past -there's just too much $$ at stake if they fail as you're up for a new engine.

 

[DOUGMO]

how about success stories,

what are people using in their engines?

 

[EVO-00X]

The general concensus is to stay away from AEM camgears and 3-bolt designs due to slippage. We all know HKS make some good shit but I've heard mixed reactions from owners of their camgears. The strongest aftermarket adjustable ones would be the full faced units like Tomei and JUN which arent cheap. GTPumps have a good camgear which is actually an SRR camgear and a race proven product. I got one of the first ones Mark started selling a while back and its got the SRR stamp on it as per the pics in this link http://www.goingsuperfast.com/HONDA.html My engine hasnt run yet so I cant give any feedback :lol:

 

[DOUGMO]

i actually spoke to mark the other day,

he no longer has them in stock and at this stage it does not look like he will be getting more,

i actually rang him to get some but no good,

 

[EVO-00X]

You could try the Fidanza camgear George, they're pretty popular as well. Someone who has a set might be able to give some feedback? (I like the Skunk2 camgears as well)

 

[GSRSOL]

just get some fidanza or crower ones.

 

[GVR40]

i have heard that gates do a racing cam gear as well, dunno what they are like

 

[CLuTZ]

If your going to build an egine which needs them, then go for the good ones, i.e, HKS.

 

[DOUGMO]

the fidanza ones are meant to be ok, but annoying to adjust(which doesnt really matter anyway)

 

[JETGSR]

go fidanza or get an engineer to make them for you that way you get a full steel cam gear not alloy.

One theory put to me was that if the gear gets to snap back on it'self (bolts slip and the gear rotates) in my case it didn't. I just put it down to bad engineering but thats my opinion! and we found 2 other gears with the same problem. (i currently run std steel cam gears)

Quantum did give a new for old replacement which i swaped for an AEM URGO meter. but i was still out of pocket for the $1100 worth of rebuild need to get the car movin again. (Note: this problem was not Quantums fault as they are simply the distrubutors)

And as far as the cam gears out there yes there are a lot of them out there on 600 + hp motors and are working fine. So who knows (bad bit of billet maybe?)

Just remember no body will cover a "performance motor or part" so really no performance part really has any warranty other than simply manafacture fault.

JetGSR