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Sourcing synchros

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Old 03-25-2015, 10:44 PM
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ShakeNBake
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Default Sourcing synchros

Had an RMS issue over the weekend and in the process of fixing I figured I would address a 2nd gear synchro issue. From PCNA it looks like a 2nd gear motorsports syncro to replace the brass stock one retails for 1800-1900 (wow!). There has got to be a better option. I've seen mention of Guard selling syncros, but wondering if they are the same thing as the motorsports parts, or something different. I think Rader gets his parts from Guard, so I'd expect it's a quality part - possibly the same - but I figured I'd ask here as well.

Mechanic is dubious as to the quality of a non-PCNA motorsports part.

TIA
Old 03-25-2015, 10:53 PM
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NorthVan
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There are a few extra pieces that need to be swapped the first time around when going to the steel cup car ones. If you ever have to replace these ones, will be cheaper as the extra parts are already there.
Old 03-26-2015, 07:35 PM
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rbahr
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I have used the Guards parts in my rebuild - same part... and would rather give them my money...

I had heard that prices were going up, but this is crazy....

Ray
Old 03-27-2015, 01:34 PM
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AEsco48
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What does a whole transmission cost...?
Sound like you could almost buy the whole thing and part it out! :-/
Old 03-27-2015, 02:10 PM
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ShakeNBake
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They don't come with these part. Stock transmission has brass synchros for 1 & 2, and normal steel for 3-6. You can upgrade to the motorsports parts for $.
Old 03-27-2015, 02:11 PM
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AEsco48
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Whats a brass syncro cost?
Old 03-27-2015, 02:22 PM
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surlynkid
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Change R&P to 4.10 or so and forget about 2nd.
Old 03-27-2015, 08:21 PM
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Speeds5
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Now why would they use brass for 1st and 2nd and steel for the others?
Old 03-27-2015, 10:38 PM
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rbahr
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I have seen the used trannies g for $12-$18k depending.

I spent $8-$10k just on parts - 1st,2nd,4th,5th, synchros, bearings, etc.

Brass for 1st gear cuz 'racers don't need no stinkin 1st gear' and for 2nd due to $$

Ray
Old 03-27-2015, 11:17 PM
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ShakeNBake
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Wouldn't need 2nd except for COTA...
Old 03-27-2015, 11:28 PM
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usctrojanGT3
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Originally Posted by ShakeNBake
Wouldn't need 2nd except for COTA...
I never used 2nd at COTA and I don't use 2nd at any track. The gear has way too much torque and goes to redline too damn fast. I can get througheven hairpin turns going 35-40mph in 3rd no problem in RS due to the gearing.
Old 03-27-2015, 11:39 PM
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ShakeNBake
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Originally Posted by usctrojanGT3
I never used 2nd at COTA and I don't use 2nd at any track. The gear has way too much torque and goes to redline too damn fast. I can get througheven hairpin turns going 35-40mph in 3rd no problem in RS due to the gearing.
I've been living without it, but it's worth about 0.5-1sec from the comparisons we've done.
Old 03-28-2015, 02:49 AM
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Spyerx
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Can you describe this 2nd gear synchro issue? What's going on?
Old 03-28-2015, 10:08 AM
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rbahr
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There is no 'issue'.

The OEM 2nd gear synchro is made of a brass alloy, and the motorsports version is steel. So if your shifting style uses synchros a lot, in particular 2nd gear, it may wear out faster.

Ray
Old 03-28-2015, 10:25 AM
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ShakeNBake
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For me it is manifesting as a problem getting into and out of 2nd at full boil at the track. Separate issues with 1st - I've had maybe a one in three chance of not being able to get into 1st at a stop light (turns out to be 1st gear synchro and clutch guide tube).


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