Cam Identification

[clivegto]

Bought this flowed cylinder head last week with cams. The cams have a B stamped on the ends. I was wondering what the B stands for. I remember it been mentioned before but can not remember or find it with the search function.

[MeanBean49]

Only way to ident cams is measure lobes and compare specs

[Buzuki]

Cams with stamp `B ` is from 88- R750J model (not 89 K model) , intake cam lobe height is 33,878mm - 33,918mm , exaust cam lobe height is 33,533mm - 33,573mm .  

[MeanBean49]

38 minutes ago, Buzuki said:

Cams with stamp `B ` is from 88- R750J model (not 89 K model) , intake cam lobe height is 33,878mm - 33,918mm , exaust cam lobe height is 33,533mm - 33,573mm .  

Any set of cams can have a B on them, its just random, just to do with the batch number, had them on alsorts of cams from different models

[clivegto]

Good chance they might be hot cams as apparently the head & cams came from a X racer.

[MeanBean49]

18 minutes ago, clivegto said:

Good chance they might be hot cams as apparently the head & cams came from a X racer.

Look pretty stock, can see the 27a, unless they have been reground. Get em measured

[clivegto]

17 minutes ago, MeanBean49 said:

Look pretty stock, can see the 27a, unless they have been reground. Get em measured

Am thinking might be J or K cams if I am lucky.

[Sandman]

If the camshafts are regrinds, they should be marked somewhere? 

Edited March 4, 2019 by Sandman
Spelling

[Buzuki]

2 hours ago, MeanBean49 said:

Any set of cams can have a B on them, its just random, just to do with the batch number, had them on alsorts of cams from different models

Maybe , but according to original Suzuki service manuals and my experience end side letter stamp is factory mark from main reason to distinguish them from model to model ,

for example cams with stamped letter : 

A - cams from late R750M model with 8 lobes per cam 

B - cams from R750J model , where R750K model have same intake (B) cam, but exaust cam is with slightly different characteristics and different letter stamp 

C - cams from early R750F,G,H models 

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picture from my Suzuki original service manual for GSXR750J (1988) model (German language version) 

 

[Dezza]

Weird Suzuki must have had it in mind that there will be 2 additional variants of the GSXR750 that would each require different cams when they made the original F model (C cams) or else they would have started on A (which seems logical). Why they reverse letter ranking I wonder? Maybe this is the way they do things in Japan.

[Lachie04]

http://old-skool-suzuki.proboards.com/thread/1546/oilcooled-camshafts-specs

[Upshotknothole]

Wow, lots of bots lately.

[Duckndive]

2 hours ago, Upshotknothole said:

Wow, lots of bots lately.

massive increase of them on faceache as well with Ai generated pics 

[Gixer1460]

The suspicion that you are a bot is 'your' video has f**k all to do with camshaft identification - its a human thing that AI is crap at LOL!

[wraith]

Bot or hasn't a clue what the difference is between cams and carbs 

[Rebuild]

OMG, I had multiple threads open... Already asked admin to erase all of my posts in this thread, so should not be here too long. Deep sorry guys. My big mistake.

[wraith]

1 hour ago, Rebuild said:

OMG, I had multiple threads open... Already asked admin to erase all of my posts in this thread, so should not be here too long. Deep sorry guys. My big mistake.

That's ok @Rebuild we will just call you bot from now on 

English hummer 

[Rebuild]

Thnx! 

(an automatic generated post... lol