Gearbox selection

DSFD506 · November 13th, 2007, 12:55

I thought I read in a post somewhere to stay away from the zinc alloy gearboxes. Other than a Pro Win gearbox, which is the best quality V2 gearbox ? I had a Guarder reinforced one but it didn't last very long. Yes, it broke in the weak spot in front of the cylinder. FPS is only around 380.

ILLusion · November 13th, 2007, 13:00

That'll be tough, since almost any die-casted product has some zinc-aluminum alloy used as the mix.

The Guarder shouldn't have broken at 380fps. What was the condition of the breakage? (ie temperature, were you doing lots of dry-firing, etc.)
What's your piston head/cylinder head?

DSFD506 · November 13th, 2007, 13:09

When I was researching gearbox's before I came to the conclusion that the zinc alloy was my best bet. I only shot no more than 5000 shots if that and the temperature was always in the 80's. It's got the standard Hurricane cylinder kit with an airsoft surgeon stage 3 spring. Also a standard half tooth piston. My buddy has the same style hurricane kit in his AK and has never had problems shooting at 400fps.

ILLusion · November 13th, 2007, 13:27

380fps is pretty low with that spring. I was able to get over 460fps in my test platform.

But that's off-topic.

Hmm... sounds like your setup *should* have been able to handle that weight. Anyways, I haven't heard of any major issues with the King Arms, G&P or Systema gearboxes.

But I HAVE had tons of problems with the Guarder one. I haven't had much luck with them.

DSFD506 · November 13th, 2007, 13:32

When I picked it up at the shop I asked the guy to fire it through the chrony and he said it shot 383 I believe. I knew that didn't sound right either. I'm going with a G&P metal body so I may just go with their gearbox too.

ThunderCactus · November 13th, 2007, 17:58

Sounds like a casting defect to me, it's rare but it does happen. Guarder makes good metal gearbox shells but they seem to think powder coating the interior of the gearbox is intelligent...
G&P makes good gearbox shells as well, 7mm holes for bearings too which is really nice. We've got a guy in Mb who's an absolute hose with his 400fps G&P 249(I mean like 4 bags a game!!), he's had it for pretty much the whole season and he hasn't broken his gearbox shell yet.

Spa · November 13th, 2007, 20:27

is that guy you tc? :P

Home	Forums	Register	Gallery	FAQ	Calendar
Retailers	Community	News/Info	International Retailers	IRC	Today's Posts

British Columbia	Alberta
BCAC	EAR
Op-For	JOC
Northern Arms Airsoft	Skunkworx Airsoft
Airsoft Kelowna	RAAT
Prince George Airsoft	Manitoba
Saskatchewan	MAA
SK Airsoft	Ontario
PDW	Airsoft Ottawa
South Sask Mercs	Snow Dragons
Quebec	1st Ranger Platoon
PQAC	Wolfpack Tactical
1st Pathfinders Regiment	TTAC3
Quebec Airsoft
MTX Airsoft	Atlantic
FAQc	Atlantic Airsoft

November 13th, 2007, 12:55	#1
DSFD506 Trader rating Join Date: Aug 2007 Location: USA	Gearbox selection I thought I read in a post somewhere to stay away from the zinc alloy gearboxes. Other than a Pro Win gearbox, which is the best quality V2 gearbox ? I had a Guarder reinforced one but it didn't last very long. Yes, it broke in the weak spot in front of the cylinder. FPS is only around 380.

November 13th, 2007, 13:00	#2
ILLusion GBB Whisperer Trader rating Join Date: Jun 2002 Location: Toronto	That'll be tough, since almost any die-casted product has some zinc-aluminum alloy used as the mix. The Guarder shouldn't have broken at 380fps. What was the condition of the breakage? (ie temperature, were you doing lots of dry-firing, etc.) What's your piston head/cylinder head? __________________ *Advanced Airsoft Armaments and Enhancements* Quick to the gun, sure of your grip. Quick to the threat, sure of your shot. Diligentia, Vis, Celeritas Accuracy, Power, Speed

November 13th, 2007, 13:27	#4
ILLusion GBB Whisperer Trader rating Join Date: Jun 2002 Location: Toronto	380fps is pretty low with that spring. I was able to get over 460fps in my test platform. But that's off-topic. Hmm... sounds like your setup should have been able to handle that weight. Anyways, I haven't heard of any major issues with the King Arms, G&P or Systema gearboxes. But I HAVE had tons of problems with the Guarder one. I haven't had much luck with them. __________________ *Advanced Airsoft Armaments and Enhancements* Quick to the gun, sure of your grip. Quick to the threat, sure of your shot. Diligentia, Vis, Celeritas Accuracy, Power, Speed

November 13th, 2007, 13:09	#3
DSFD506 Trader rating Join Date: Aug 2007 Location: USA	When I was researching gearbox's before I came to the conclusion that the zinc alloy was my best bet. I only shot no more than 5000 shots if that and the temperature was always in the 80's. It's got the standard Hurricane cylinder kit with an airsoft surgeon stage 3 spring. Also a standard half tooth piston. My buddy has the same style hurricane kit in his AK and has never had problems shooting at 400fps.

November 13th, 2007, 13:32	#5
DSFD506 Trader rating Join Date: Aug 2007 Location: USA	When I picked it up at the shop I asked the guy to fire it through the chrony and he said it shot 383 I believe. I knew that didn't sound right either. I'm going with a G&P metal body so I may just go with their gearbox too.

November 13th, 2007, 17:58	#6
ThunderCactus Not Eye Safe, Pretty Boy Maximus on the field take his picture! Trader rating Join Date: Feb 2007	Sounds like a casting defect to me, it's rare but it does happen. Guarder makes good metal gearbox shells but they seem to think powder coating the interior of the gearbox is intelligent... G&P makes good gearbox shells as well, 7mm holes for bearings too which is really nice. We've got a guy in Mb who's an absolute hose with his 400fps G&P 249(I mean like 4 bags a game!!), he's had it for pretty much the whole season and he hasn't broken his gearbox shell yet.

November 13th, 2007, 20:27	#7
Spa Trader rating Join Date: Oct 2006 Location: Winnipeg, Manitoba	is that guy you tc? :P

Gearbox selection

Upgrades & Modifications