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gs1000 Andrews cams


jb

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Posted

Does anyone have a spec sheet for Andrews cams made for the GS1000 please? 

Searched everywhere but struggling for info on them

Posted

 

So it turns out i only did a 'man' look.......further searching and here is the info below, might be useful to others.......

 

NOTE: June 7, 2002: The specifications listed below are shown for reference only. Suzuki

camshafts are no longer manufactured by Andrews Products and we have no

existing inventory.

ANDREWS PRODUCTS, INC. (Dec. 1982)

SUZUKI 2 VALVE CAM SPECIFICATIONS

AT TDC (overlap) 7S, 1S, 2S cams should have adequate piston-valve clearance with STOCK pistons.

Valve clearance should always be checked when using high compression pistons. Piston/valve clearance

(at TDC) should be .030 (.75mm) as MINIMUM settings. Stock valve springs are recommended for

7S, IS or 2S cams. High lift springs should be run with all other cams.

 GRIND - LIFT -          DURATION -            TIMING -                        CL ANGLE -                LASH

Stock in .325               236 deg.                  08/48                              110                      (listed for

           ex .304              232 deg.                  46/06                              110                      comparison)

7S       in .346               260 deg.                 22/58                               108                      .004/.006

           ex .346               260 deg.                 58/22                               108                     .004/.006

1S       in .370                260 deg                  22/58                               108                     .004/006

          ex .370                260 deg.                 58/22                                108                     .004/.006

2S      in .390                274 deg.                 29/65                                108                     .004/.006

           ex .390               274 deg.                 65/29                                108                     .004/.006

3S       in .424               280 deg.                 27/59                                 110                     .004/.006

           ex .424              280 deg.                  59/27                                110                     .004/.006

4S       in .455              274 deg.                   37/65                                110                    .004/.006

           ex .455              274 deg.                  65/37                                110                     .004/.006

5S       in .490               270 deg.                 25/65                                 110                     .004/.006

           ex .490               270 deg.                65/25                                  110                    .004/.006

Timing and duration both measured at .030 checking height off base circle

  • Like 2
Posted
5 hours ago, wraith said:

Had a set of the S3 cam in my old gs1000 great cams

Those are the type I have too...don't suppose you can remember what spec engine and carbs you had them with? 

Posted

Wiseco 1100cc, cv ported head, HD valve springs, under bucket shim conversion, ti valve spring retaners, Debbens sort bronze valve guides, slotted cam sprockets, 36mm gsxr1100 carbs, K&N filters, did have a Harris then a one off 4-2-1, depressed balance crank, HD clutch basket and OEM plates with HD springs, 330mm wide 8 row oil cooler, and the said above cams.

Was going to put the 750 year box in it but never got round to it xD

Some work done by Debbens and some work done by that nice man in Leeds Roger Upton.

  • Like 2

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