90lb Hoyt Ultra?

[Recluse]

Just curious: On an 80# RX5 Ultra, with the tiller bolts bottomed out and several twists to the cable, how close can one get to 90?

 

[wayoh22]

I would imagine not close. Pretty sure there's a good chance you'd bust something on the bow trying to accomplish what you're after. 80lb limbs are made exactly for that: 80lbs. Of course there's some leeway, but I don't see it ending well pushing it to the limits.

 

[OR Archer]

I would imagine not close. Pretty sure there's a good chance you'd bust something on the bow trying to accomplish what you're after. 80lb limbs are made exactly for that: 80lbs. Of course there's some leeway, but I don't see it ending well pushing it to the limits.

It won’t break anything. You can get it close but it does cause some issues. One is it’ll increase the draw length while shortening the A2A and increasing the brace height. It can also over rotate the cams. Third it can bunch up the cables with too many twists.
You could probably add 4-5 twists with little issue and gain a few pounds but it’s honestly NOT going to gain you much in the way of performance

 

[Reburn]

The best question is WHY? I can think of maybe 2 animals in the world that would warrant that kind of bow.

I mean the days of bows being slow and needing to yank 90lbs back is way gone. Im not understanding the need personally.

 

[wayoh22]

It won’t break anything. You can get it close but it does cause some issues. One is it’ll increase the draw length while shortening the A2A and increasing the brace height. It can also over rotate the cams. Third it can bunch up the cables with too many twists.
You could probably add 4-5 twists with little issue and gain a few pounds but it’s honestly NOT going to gain you much in the way of performance

That's good to know. I just figured if you're going to "push" the limbs, strings, and cables to their limits that there's a inherited risk that something will go wrong.

 

[bward34]

My 80 limbs on the Ventum 33 ran at 83 pounds. My 31 inch draw had a ~600 grain arrow at 299 FPS. haven't blown anything up yet. haha.

 

[Recluse]

Thanks all. I want to shoot above 80 while I still can. Is it necesssry? No. But neither are 70" TVs and big trucks

 

[Recluse]

My 80 limbs on the Ventum 33 ran at 83 pounds. My 31 inch draw had a ~600 grain arrow at 299 FPS. haven't blown anything up yet. haha.

Did you add twists or just bottom out the tiller bolts ?

 

[bward34]

Did you add twists or just bottom out the tiller bolts ?

Just bottomed out the bolts.

 

[Billy Goat]

Thanks all. I want to shoot above 80 while I still can. Is it necesssry? No. But neither are 70" TVs and big trucks

Something inherent in that phrase.


The while you still can is shortened.




It's OK, I didn't listen either.

 

[S.Clancy]

I'd bet around 85 lbs

 

[AkRyan]

I would imagine not close. Pretty sure there's a good chance you'd bust something on the bow trying to accomplish what you're after. 80lb limbs are made exactly for that: 80lbs. Of course there's some leeway, but I don't see it ending well pushing it to the limits.

So how do I get 75 from 70lb limbs...how does anyone get more than 70lbs with 70lb limbs.....twist the cables....you can twist the cables on your 40lb bow and get 50lb if you want to try it out

 

[Aerosith]

My 80 limbs on the Ventum 33 ran at 83 pounds. My 31 inch draw had a ~600 grain arrow at 299 FPS. haven't blown anything up yet. haha.

I find this hard to believe.... can you please provide evidence of this? The discrepancy of 50 grains higher and 10fps faster on nearly the same cams doesn't make sense, they have nearly identical performance specs. I have an 80lb RX-7 ultra set at 82lbs, 31.5 draw, with a 552gr arrow @290fps.

 

[BucksNBulls]

Best I can get on my RX7 Ultra is 82lbs with out messing up ATA and or Draw length.

 

[Marble]

I find this hard to believe.... can you please provide evidence of this? The discrepancy of 50 grains higher and 10fps faster on nearly the same cams doesn't make sense, they have nearly identical performance specs. I have an 80lb RX-7 ultra set at 82lbs, 31.5 draw, with a 552gr arrow @290fps.

IME, chronographs can vary quite a bit depending on a lot of factors. Just something to consider.

Sent from my SM-S918U using Tapatalk

 

[Zac]

I'd say based on your limited knowledge that you will not be able to tune an arrow for that setup if you are somehow able to get the poundage.

 

[Aerosith]

I'd say based on your limited knowledge that you will not be able to tune an arrow for that setup if you are somehow able to get the poundage.

How does tuning an arrow to a bow change make a big difference in speed? I thought speed was determined by draw weight, draw length, brace height, and arrow weight?

 

[Zac]

How does tuning an arrow to a bow change make a big difference in speed? I thought speed was determined by draw weight, draw length, brace height, and arrow weight?

Speed is a byproduct, dynamic spine is the issue. He’s not going to be able to walk into a shop and have an off the shelf arrow built that will work.

 

[Beendare]

Yeah, you can go outside what the bow was engineered for ……I’ve seen guys shim their limbs and tweak their compounds, “ Frankenbows” and they are pretty proud of them…until they blow up.

It used to be that some of these 80# bows come with a limited warranty….is that still the case?

Nothing an 80# bow can’t do…or kill. …but for that matter one can say the same about 70# bows.

 

[Zac]

Actually most speed bows at 70 are outdoing most 80 lb bows. 80 is almost always unnecessary unless someone’s a very short draw, and 90 is driven purely by ego. I’m not judging, if pulling ridiculous poundage is a goal then it is achievable with a few platforms. Arrow selection is also sparse, but there are a few options out there. I’m fairly disgusted by the whole idea, and would prefer someone get better at archery rather than focusing on an arbitrary meaningless number.