cam card question TEXAS SPEED PLEASE LOOK when i installed my cam dot to dot and checked the intake c/l i was @ 106degrees. my question is should i be at 106 or should be at the 110 degree that the cam card shows the center line to be. its kind of confusing because it says 4degrees of advance on the next line down and 110-4 would be 106. JUST INSTALL IT DOT TO DOT IS NOT THE ANSWER I AM LOOKING FOR. want someone to explain the number for me so i can understand what im missing. so ok here is my cam card Serial # UY2386-07 Spec Card# Part # CAMSHAFT, LS1 228R 114 Core CAMSHAFT BLANK, LS1 1997 UP 5.7 CORVETTE Grind # LS1 228R 114 DURATION @ .050 INTAKE 228 ROCKER ARM RATIO VALVE ADJ INTAKE .000 DURATION @ .050 EXHAUST 228 INTAKE 1.70 VALVE ADJ EXHAUST .000 LOBE LIFT INTAKE .3460 EXHAUST 1.70 VALVE LIFT INTAKE .588 LOBE LIFT EXHAUST .3460 VALVE LIFT EXHAUST .588 LOBE SEPARATION 114.0 DURATION .006 INTAKE C/L 110.0 TAPPET LIFT INTAKE 277 CAM ADVANCE 4 TAPPET LIFT EXHAUST 277 HYDRAULIC Y VALVE TIMING .050 OVERHEAD CAM N VALVE OPEN INTAKE 4 JOURNAL DIAMETER VALVE OPEN EXHAUST 52 RECOMMENDED VALVE SPRINGS VALVE CLOSED INTAKE 44 DEPARTMENT P VALVE CLOSED EXHAUST 4- SPC INSTR FOR CUSTOMER |
It has 4 degrees of advance ground in from the factory, so it souls come up to 106 degrees. If you have adjustable timing gears I'd throw it in at the 0 setting to get it to where it should be.....its not that un common for a cam to be a degree or two off, that's why you should always check them. First, check to be sure that you do have the timing gears at 0 before you go adjusting it. |
ok so it should be at 106 not 110? since it has 4 degrees advance ground. correct. |
Originally Posted by j_tizzle_84
(Post 15788789)
Serial # UY2386-07 Spec Card# Part # CAMSHAFT, LS1 228R 114 Core CAMSHAFT BLANK, LS1 1997 UP 5.7 CORVETTE Grind # LS1 228R 114 DURATION @ .050 INTAKE 228 ROCKER ARM RATIO VALVE ADJ INTAKE .000 DURATION @ .050 EXHAUST 228 INTAKE 1.70 VALVE ADJ EXHAUST .000 LOBE LIFT INTAKE .3460 EXHAUST 1.70 VALVE LIFT INTAKE .588 LOBE LIFT EXHAUST .3460 VALVE LIFT EXHAUST .588 LOBE SEPARATION 114.0 DURATION .006 INTAKE C/L 110.0 TAPPET LIFT INTAKE 277 CAM ADVANCE 4 TAPPET LIFT EXHAUST 277 HYDRAULIC Y VALVE TIMING .050 OVERHEAD CAM N VALVE OPEN INTAKE 4 JOURNAL DIAMETER VALVE OPEN EXHAUST 52 RECOMMENDED VALVE SPRINGS VALVE CLOSED INTAKE 44 DEPARTMENT P VALVE CLOSED EXHAUST 4- SPC INSTR FOR CUSTOMER That cam card shows it as a 114 LSA. If the cam is really in @ 106 ICL then you have the cam in 8 degrees advanced. If you had it installed @ 110 ICL it would be 4 degrees advanced. |
Originally Posted by JS01
(Post 15789292)
That cam card shows it as a 114 LSA. If the cam is really in @ 106 ICL then you have the cam in 8 degrees advanced. If you had it installed @ 110 ICL it would be 4 degrees advanced. |
mixed reveiws hopefully tsp will comment. if not i am going to drop them a line later |
Dont be getting lsa and ICL confused. Sounds what is going on here |
It has a 114 LSA, so if the cam is installed "straight up" with no advance or retard, you would come up with a 114 ICL. Now, with 4 degrees advance ground in you should be getting 110 ICL like the cam card says. Since you are getting a 106 ICL, you have the cam in a total of 8 degrees advanced. |
Originally Posted by RezinTexas
(Post 15790367)
the next line down shows ICL 110. |
Originally Posted by tillery
(Post 15790543)
Dont be getting lsa and ICL confused. Sounds what is going on here |
KCS explained it best. On where and how it should read. Hope it helps on showing where it needs to be. I see what your saying. Card says +4 and your getting -4. Right? Edit. Sorry to add any confusion. But i would have thought your reading is ok. That it has +4° ground in. So a reading of 106 +4 will give you 110° overall. Dot to Dot. |
the 106 was what i got being dot to dot i the set it up to degree at 110 as the cam card said. so at 110 i have 4 dgrees of advance and it is set up correctly? i just wanna be sure cant really afford to screw this up. |
Originally Posted by KCS
(Post 15790590)
It has a 114 LSA, so if the cam is installed "straight up" with no advance or retard, you would come up with a 114 ICL. Now, with 4 degrees advance ground in you should be getting 110 ICL like the cam card says. Since you are getting a 106 ICL, you have the cam in a total of 8 degrees advanced. |
Originally Posted by RezinTexas
(Post 15790784)
So for a cam with no advance or retard, the LSA is always equal to the ICL? |
Are you checking to make sure the cam has been ground correctly? I thought you always put the cam in dot to dot. Just making sure I understand for when I do mine. With the stock cam gears you are stuck as to where the cam attaches to the wheel because of the dowel so without an adjustable you are kinda stuck with either trusting it is ground right or figure out how much off the dots are correct? |
If you degreed it properly, it is advanced 4º too far. It is ground as 110º ICL, and you're measuring 106º, that's not right. Retard the cam to where you want it. |
That is what I did. Just double checking. Thanks for the input |
Originally Posted by baxsom
(Post 15791030)
Are you checking to make sure the cam has been ground correctly? I thought you always put the cam in dot to dot. Just making sure I understand for when I do mine. With the stock cam gears you are stuck as to where the cam attaches to the wheel because of the dowel so without an adjustable you are kinda stuck with either trusting it is ground right or figure out how much off the dots are correct? |
All times are GMT -5. The time now is 03:30 PM. |
© 2024 MH Sub I, LLC dba Internet Brands