obd1 a MUST???
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Joined: Nov 2006
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Re: obd1 a MUST???
i didnt say it broke my fork.
it didnt help me NOT break it though.
sheesh.
it was an old D trans (aluminum fork), not a burly B. lot of leverage there though, and if you miss a gear and push keep pushing, your putting a LOT of force on it.
great shifter though, for feel . i loved it on the couple of track days i did with it...but wont have it in anymore. made a LOT of money on it when i sold it. i wouldnt NOT recomend it for drag cars though
it didnt help me NOT break it though.
sheesh.
it was an old D trans (aluminum fork), not a burly B. lot of leverage there though, and if you miss a gear and push keep pushing, your putting a LOT of force on it.
great shifter though, for feel . i loved it on the couple of track days i did with it...but wont have it in anymore. made a LOT of money on it when i sold it. i wouldnt NOT recomend it for drag cars though
well it is designed for the B series engine and for road racing, not drag racing lol
Honda-Tech Member
Joined: Jun 2007
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From: Westford, MA
Re: obd1 a MUST???
Completely incorrect. This is most likely why they seem to sell so many. Go study a little on a what a synchro is, understand how hard it works, now ask yourself "How could it not hurt anything to ask this component to work twice as hard". Then it might make sense. You will decrease the throw from your shifts which will do nothing more then make the synchro work faster/harder. I have used short throw shifters on three of my first Honda/Acura cars and had grinding problems with them all. One of the shifters even broke from **** poor quality. If you want a shorter throw shifter on your car, get one from an Integra. Its not going to hash your tranny up and will be slightly shorter then the stock unit.
Honda-Tech Member
Joined: Apr 2003
Posts: 6,919
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From: In the garage
Re: obd1 a MUST???
Just looking for some enlightenment and ZERO flaming please. I have already tried researching syncros and I was under the impression that the main function of a syncro was to assist downshifting so that the driver does not have to "double-clutch" to match the collar with the gear. So why is it that a short throw would hurt the syncros during up-shifts? I understand the trans. is working faster, but i can only see the syncros being hurt during the quicker downshifts, not the upshifts. Please help me out on my road to knowledge hahah
I don't have a picture of a synchro, so you will have to bear with me. The synchro rides on a tapered lip which is located on the gear. The inside of the sychro has very sharp teeth that allow it to "cut" through the oil and bite into the tapered edge. The idea is that when this happens the syhcro will essentially "synchronize" the speed of the gear and the shift collar so the dog teeth can mesh correctly. Sychros become worn when the inner teeth become dull. This prevents them from being able to bite into the gear and thus causes the collar and the gear to rotate at different speeds. When you shift, this will cause the dog teeth to hit and produce the infamous sound of "grinding gears".
The teeth on the inside of the synchro have a tremendous task at hand to slow the gear down. Imagine how quickly things have to work under normal conditions. Now, if you shorten the throw of your shifter, you have decreased the amount of time the synchro has to work because you have asked it to work harder (faster). This will create additional stress on the synchro eventually leading to failure. Make sense?
Honda-Tech Member
Joined: Jun 2007
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From: Westford, MA
Re: obd1 a MUST???
Well, I just read up and refreshed myself with synchros and short-throw shifters quickly. A short throw is just a geometrically improved stock shifter if you will. The shifter itself is shorter and the angle of it is straighter after the install. Once the driver is used to the new pattern, I think it is possible to create very minimal to no damage to the synchros as long as the driver is driving smart. Someone mentioned earlier that the people who install these typically slam the gears. I want to say most transmission issues with short throws are due to aggressive driving and the product's quality.
But in the end, I do see why you would say short throws are 'hazardous'. The engagement of gears can be quicker causing dog teeth to wear quicker. I'll agree with that, but I do think you can still enjoy having one if you have a well made product and you do not drive stupidly. I have a few friends here who drive Saabs. Saab transmissions are one of the weakest i've heard of considering how much power those cars can make. Anyways, i know one of them is close to 300whp and his transmission can handle that power without failure as long as he's shifting with care. You can't slam the gears in those cars...ever.
But in the end, I do see why you would say short throws are 'hazardous'. The engagement of gears can be quicker causing dog teeth to wear quicker. I'll agree with that, but I do think you can still enjoy having one if you have a well made product and you do not drive stupidly. I have a few friends here who drive Saabs. Saab transmissions are one of the weakest i've heard of considering how much power those cars can make. Anyways, i know one of them is close to 300whp and his transmission can handle that power without failure as long as he's shifting with care. You can't slam the gears in those cars...ever.
Last edited by accord_raffi; Jan 4, 2009 at 09:13 AM.
Honda-Tech Member
Joined: Jun 2008
Posts: 196
Likes: 0
From: Van, BC, Canada
Re: obd1 a MUST???
I don't have a picture of a synchro, so you will have to bear with me. The synchro rides on a tapered lip which is located on the gear. The inside of the sychro has very sharp teeth that allow it to "cut" through the oil and bite into the tapered edge. The idea is that when this happens the syhcro will essentially "synchronize" the speed of the gear and the shift collar so the dog teeth can mesh correctly. Sychros become worn when the inner teeth become dull. This prevents them from being able to bite into the gear and thus causes the collar and the gear to rotate at different speeds. When you shift, this will cause the dog teeth to hit and produce the infamous sound of "grinding gears".
The teeth on the inside of the synchro have a tremendous task at hand to slow the gear down. Imagine how quickly things have to work under normal conditions. Now, if you shorten the throw of your shifter, you have decreased the amount of time the synchro has to work because you have asked it to work harder (faster). This will create additional stress on the synchro eventually leading to failure. Make sense?
The teeth on the inside of the synchro have a tremendous task at hand to slow the gear down. Imagine how quickly things have to work under normal conditions. Now, if you shorten the throw of your shifter, you have decreased the amount of time the synchro has to work because you have asked it to work harder (faster). This will create additional stress on the synchro eventually leading to failure. Make sense?
good info!
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