Does anyone have the timing events for TRW. TP242 or Sealed Power. CS-1023 R ? I have the duration and lift and LSA but need opening and closing events, couldn't fine online , thanks.

 

I probably have them at the shop. Ill try to remember and look in the am

 

The Sealed Power catalogs I have here do not give opening and closing numbers. You should be able to figure them out from the durations and centerlines.

In case you dont have all of it this is all they show:
Duration @ .050 214/224 Duration @.006 290/300 Intake centerline 107 exh centerline 117

It looks like and probably is the same as the Melling 25211 The .050 numbers for that cam are:
In opens 0 TDC closes 34 ABC
ex opens 49 BBC closes 5 BTC

See page 14: https://www.melling.com/wp-content/u...ications-1.pdf

 

Thanks for that.

 

Here is the math. I hope that it helps. Also, please remember that this does not account for any offset in the designs. This math works for 0.050" or 0.006" or any lift point.

Intake Centerline = Lobe Separation - Advance = 112 - 5 = 107
Exhaust Centerline = Lobe Separation + Advance = 112 + 5 = 117

Lobe Separation = ( Intake Centerline + Exhaust Centerline ) / 2 = (107 + 117) / 2 = 112

IO = ( Intake Duration / 2 ) - Intake Centerline = (214 / 2) - 107 = 0 BTDC
IC = Intake Duration - IO + 180 = 214 - 0 - 180 = 34 ABDC

EC = ( Exhaust Duration / 2 ) - Exhaust Centerline = (224 / 2) - 117 = -5 ATDC
EO = Exhaust Duration - IO + 180 = 224 - (-5) - 180 = 49 BBDC