Phoenix speed question

[Lucky-Dog]

I plan getting some GoldTip Lasers and then go get chronoed. Does someone have a simple speed calculator or just tell me about what speed I should get with 375 to 390 grain from my Phoenix ?
Would 290 fps be a good guess ?

[vixenmaster]

About 295 fps wid fast flite string 288 wid dacron

[Lucky-Dog]

I forgot about the string difference.
Thanks for the help.

[taz3]

With Firebolts and 150 grain field points and a Flemish string my Phoenix is now shooting over 300 fps.

[Lucky-Dog]

Thanks taz3
Every speed calculator I clicked on ask me for information I couldnt provide. I use to have some info in my computer files years ago but Im just now getting back into crossbows again and several things have changed.

[awshucks]

Here's the figures: 8-12 fps for diff in strings and 1 fps for every 5 gr above 350 gr. Not perfect, but dang close.......

[Lucky-Dog]

Thanks awshucks
I really like things in layman's terms
I saved this thread under my favorites list because Im getting old and forgetful.
Thanks again for all the help

[Ibex]

I have an Ibex. With 436 gr arrows I get 290 fps. You should get 300 fps.

[Lucky-Dog]

Thanks Ibex sounds like you might be shooting a fast flight ????

[Ibex]

Yes, I am using a fast flight string.

[pphoenix]

I would guess you're shooting fast enough

[Lucky-Dog]

Well finally had a chance to take the Phoenix to town and get chronoed. It has an old worn out Dacron string on it and with bolts weighing in at 501 grains it shot average 269 fps. With 452 grain it shot average 280 fps.
So with all the info that you all gave me earlier it looks like its shooting right on the money.
I bought this used Phoenix from craigslist at a real sweet price but the string was left in place almost all the way stretched out and smashed the dissapator pads which I completely removed but it has turned out to be a good one. The trigger is like none that I remember because there is absolutely NO trigger creep and its set light and crisp. I will stop bragging now.
Thanks again for all the help and I love owning another Excalibur crossbow again. Man its been awhile.