car iN my sig, and it has a textralia clutch, it has no problems, makes some noise that all of my friends think is a s/c whine lol. Is tricky going into 6th but that could be just the Short throw (lou's Short Stick) needing adjusting. anyways i have no experience with "strait cut gears" so any input is helpful, THANX

 

Straight cut gears mis-spelled? (non-helical) or some brand name "STrait" gears that are dog-gear or faceplated?

Straight-cut gears are stronger, but noisier. They shouldn't affect shifting because they're in constant mesh.

 

The straight cut will certainly be noisier - dump truck noisy. They should be stronger IF they were properly made( material /heat treat /shot peen) It really dpends on who made'em .

 

Straight cut gears are used because they are cheaper to make not because they are stronger.

 

Not sure on cheaper (as I don't know one way or the other about cost) but I can assure you that straight cut gears ARE stronger than helical cut gears, that I KNOW.

 

"Straight cut" spur gears can not take as much load as helical gears.
Thanks.

 

sorry about the spelling error i was refering to "Straight cut" gears. the trans got built about a year ago and they do make noise but all the research i did on them was pretty much the same as the forum here, Some say that straight cut are awesome and stronger and others say they are just cheaper, BUT cheaper than what bc i can get a good t56 all day for 1000-1300 but a straight cut mod is like 4g's . . . . . Any thoughts?

 

Straight-cut gears are stronger when designed correctly. They can suffer from initial shock load if not in constant mesh, but your gears will be (adds to cost).. They are also more efficient (less power loss). The main reason they are not used is the noise.

 

Constant mesh..means no lash?

 

no, constant mesh means they always run against each other. they do not engage and disengage with anything.

 

Straight cut gears are stronger and do not create the same amount of force that helical cut gears create to push away from each other. They are very noisy though!!! Ideally, you want a helical cut gear with a reduced angle to reduce force but still run somewhat quiet. This was the theory behind the Muncie M22 4 speed.

 

I am really not aware of any company that makes a straight cut gear set for T56s. Anyone know one?

Andrew

 

I think there is a mistaken notion that a reduced helix gear is a straight cut gear. The fact there is still a helix angle negates it as a straight cut gear.

 

I haven't heard of anything.
sure its not faceplated or proshifted?
bellhousing offset will cause gear wine in all gears except 4th also

 

Ahhh, the 'ole rockcrusher ....
http://www.youtube.com/watch?v=lWjcgP-MeaI

 

No road trips with that..

 

I used to have an M22 in my GTO, long time ago. In 4th gear is was pretty quiet.

Andrew

 

Is it a good ideah to put straight cut gears in a DD car?

 

Depends on what you consider a good idea

For most, proably not, ALOT of gear whine for a DD. I could see it someone

 

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