Retarding cam timing?s

[cclingma]

I hope I'm not about to mess with this bow too much. 07 Synergy 60lber set for 28" is maxing out at about 61.5lbs and 28.5" draw with 33-1/8 ATA and 7-1/8 BH. The bow hits peak weight at about 6.5" of draw and I think I'm supposed to be hitting peak at 7 to 8". Pretty close but I'm trying to get this rig up to max speed/effeciency. I believe the next step would be to retard the cam timing? I'm not sure which way is retarded.... cam tips further forward before draw or furher back if looking at the bow from the string end of things? Twist up cables to retard timing? I'm all wrapped up in this thing.

[archer58inPA]

What position is your draw stop?
Are your limbs maxed or have you taken 1/8 to 1/4 of a turn out of the bolts when you checked the weight?

My Synergy was set on 28" and pulled 28.5 also. If it feels good to you don't worry about it. If it's too long you'll need to put a twist or two in the string. Twisting the string will shorten the draw AND decrease the weight also. Then a twist or two in the cable is needed to bring it back to weight. It really sounds like you're pretty close to where you need to be. A chrono will tell you what you need to know.

[cclingma]

What position is your draw stop?
Are your limbs maxed or have you taken 1/8 to 1/4 of a turn out of the bolts when you checked the weight?

I took about a 1/4 turn out of the limb bolts when checking weight. Draw stop is at about 6.2ish. It was launching a 360g arrow at 283 with a meta peep and d-loop only....sounds like it should be about 290+. I got way brave and started taking turns out of the cables. Ended up going three turns each. This allowed the cams to turn further toward the drawn position when at rest and dropped the poundage to about 59.5 but I can't shoot through chrono until the sun comes up. Did I retard them? Thanks for the reply!

[archer58inPA]

You should be twisting the cables to retard the cams. By untwisting the cables you are also taking away DL and DECREASING DW. You advanced the cams.

Put the twists back in the cables. Your weight WAS good. You could even add to it a twist to each cable. Shoot it 10 times to settle the twists and sync. the cams. Make sure your mod. stops are contacting the cables at the exact time, but "not pushing the cables" when pulled hard into the draw stop. You should have 80% letoff here.

My draw stop was about 6.3 +/- when I was there.

[cclingma]

You should be twisting the cables to retard the cams. By untwisting the cables you are also taking away DL and DECREASING DW. You advanced the cams.

Dough! It's embarassing to go the wrong way on a one way street. To the basement I go. Thanks!

[Maybee-R]

At 28 inch the draw post setting should be 5.8. Trophytaker75 has a post on here with pics of the cams at rest and full draw. his timing is getting the best speed. look them up.

[archer58inPA]

At 28 inch the draw post setting should be 5.8. Trophytaker75 has a post on here with pics of the cams at rest and full draw. his timing is getting the best speed. look them up.

I have talked to Tony a couple times and his procedures work pretty well. It will work better it seems if you are shooting a bow at max poundage or close to it. The cam rotation is retarded and to get the most benefit you can't turn the limb bolts out bc it advances the timing.
I have my bow set now to TT75's suggestions , but bc I shoot a 70lb. bow at 63 I don't get full benefit. I should have bought a 60#'er. "You have the right combo to do this".
Also the settings will add 1/2" to your draw and thus you'll need to advance the draw stop like I did to 6.2 or 6.3.

I picked up 3 fps . even after turning out the limb bolts. I believe that if I could get the cams retarded enough I would see much more.

[cclingma]

My cams look extremely close to TTs at rest. I'm at 1 turn in on the botom cam and 1/2 turn in on the top one now from factory. Seems very synched and draw stop I believe is just right. My draw length is 28.5 as to be expected and my weight is about 1.5lbs high. I'm debating whether to add another twist or two to the cables in the search for speed or leave well enough alone. I'm really wanting to be able to brag about getting a few more fps out of the bow than what it came from the factory. 283fps with 360g arrow, 28" draw setting, 61.5lbs

I almost forgot the part that has me thinking about twisting some more. I don't believe my cams are retarded at all as they hit peak weight at about 6.5" of draw.

[cclingma]

Ut oh. I decided to go to specs on the strings and cables and I think it might have been bad. It took 6 twist into the strings to get them on and 4 out of the cables to get them on. ATA and BH still look good but I'm only at about 58.5lbs now and it comes in pretty late in the draw, something like 10" or 11". Slowed down by 10fps. Sure is easy to slow down. Kindda scratching my head now.

[archer58inPA]

Just put it back. It's a good thing you counted the twists out.
What u did was shorten the draw length also.
Put it back and put 1 twist in each cable from your prior position.
A good check on cam position TT75 told me, is to see if a penny fits between the cable and the string post where it wraps around the cam near the axle....did I explain that right??