|
Title: SLR cam degrre Post by: bedjo78 on October 01, 2018, 01:26:30 am Hello
Engine 88x94 . Race only. SLR XR 329 Angle flow heads Ti 50 x 38 . Rod 5.88. 2" exhaust I have a doubt with my new camshaft right now Cam cart said In Open 35.5 IN Close 71.5 Ex Open 71.5 Ex Close 35.5 Installed with 0 washer I got below In open 32 In close 77 Ex open 69 Ex close 37 Installed with 4 deg washer In open 36 In close 73 Ex open 72.5 Ex close 33.5 That will have 108.5 lobe center on Intake and 110.5 lobe center on exhaust. Should I run it or do I need 6 deg washer which I dont have in hand? Shifting at 8000 rpm Title: Re: SLR cam degrre Post by: Jim Ratto on November 21, 2018, 17:09:33 pm cam card readings indicate this is ground with intake lobe center @ 108 ATDC, and exhaust lobe center also 108.
Your zero washer is netting you about 3 degrees retard The 4 degree washer is netting you about 1 degree advanced. I would suggest this setting over retarding cam timing. Next I would check piston to valve clearances on both intake and exhaust, and if you decide to change cam timing, recheck. Title: Re: SLR cam degrre Post by: bedjo78 on November 24, 2018, 13:48:56 pm Thank you Jim
I will install it with 4 deg washer. |