hi im very new to tixati and im downloading a torrent of 4gb my download speed is 39mbs and upload is 8mbs but its taking forever to download can anyone tell the best set up for downloading please

There are no universally perfect, optimal settings that work for everyone. There are just too many factors affecting one's connection and bittorrent performance. There are also many factors affecting the individual speed you can get out of each torrent.

ISP capping, routers and ports, contracted speed vs effective speed, the speed of other users in the torrent you're trying to download, relative distances to other users, the frigging time of day... the list goes on and on.

Basically, start here:
http://www.tixati.com/optimize/

Make sure that your bittorrent ports are properly forwarded in your router and firewall. Download a torrent with lots of fast seeders on it and compare its performance to any specific one that is causing you trouble, as a comparison reference (i.e. to make sure it's just related to that one torrent, and not your connection overall).

It's also important to keep computing measurement units in mind. For instance, you stated that your download speed is 39 mbps. That means roughly 4.8 MBytes/s. Which means that, under IDEAL circumstances, you should be able to download your 4GBytes torrent in about 15 minutes.

But in the real world and due to all the above, IDEAL is not always the case. If the torrent has few seeders (?) or they have a slow speed, nothing more you can do about it. If the torrent has only one initial seeder (?) and everyone else are still downloading just like you, nothing more you can do about it. And if there are NO seeders but only downloaders (?) with just a part of the files just like you, you certainly can't do anything more about it. And so on. Regardless of what it is, do mind that torrents, especially several-Gigabytes-sized ones, are not something you click on "download" and stay there looking at it with your arms crossed, waiting for it to arrive. You click on "download", and you go do other stuff. IF there are seeders, it will arrive when it does. :)

If you stumble into a wall let us know by stating clearly what tests you did and what is happening exactly - the more specific you can be and the more data you can give us, the higher the chances of someone being able to help.

often the best thing to do is increase your uploading, as other clients will reward that.

http://www.tixati.com/optimize

And it is so true especially over time, upload what you can when you can, not only do you share back but you dont get as droped out. Thanks BMag for the add, again, and Guest thank you for your time on your post. We used to say, in other times in other places give back at least half of what you get. But in these hardening times we need help to refil the vacuum the best we can. Share from time to time. You know, the clean stuff or forgotten gems that just arnt seen these days. And its nice to see reference below, and follow the those rules. Tixati is at the least Better than the older competators, especially the deeper Iv looked. The crew is deeply appreciated for there work.