How long before contact?

There is no timeline here

It may be, and this may hurt even with the evaluation they gave you, that there was no interest

Thanks for the reply. I understand if the D1 school was not interested but there were DII and DIII coaches there also. Wouldn't you think there would be some interest?

If you know what schools were there and you have interest in them, call, email, or/and send a letter to them!

They like to know you have an serious interest in their program.

You never know!

mm77,
A lot of the DIII coaches, in fact, have not even started serious or intense recruiting efforts. While the lack of response to your evaluation might mean something it terms of DI, which are heavily into their recruiting framework, it may mean nothing in terms of DIII.
I agree with Homerun04, if you can identify the schools that were present, start calling them and emailing, especially at the DIII level. The velocity topping out at 84mph is acceptable to generate interest at many DIII programs.
Good luck to you and keep us posted on how things are progressing. If you really want to pitch in college, and it sounds like you do, you may need to be persistent in calling and contacting coaches to generate some initial interest. If you want to play college ball enough, then it is worth all the effort to pursue that goal.

mm77,

You have time. Make this your most important off-season ever. Find a qualified pitching instructor to fine-tune your mechanics so as to eke out 1-2 MPH. Assuming you're in great cardio condition, work on core strength, leg strength and nutrition. Do you long-toss in the off-season 5x week? If not, do so! Read the many, many posts on this subject here on HSBBW. If you are at 84, with mechanical work you can be 85-86, and with hard work and dedication 87-88. It's not impossible. If you're 87-88 you'll get some serious looks next year!

There is more than one path. Even if a Div. I doesn't pick you up, pitch for a JC and keep working hard.. they might pick you up in a year or two. Sometimes this is the best way to go. You could be getting quality starts at the JC level while others are red-shirt freshmen at the Div. I level. You've got to start with belief, and act upon that belief by doing something proactive, now!

Also, now is the time to take a serious look at your nutrition and workout program. At 6'1" and 150 lbs, I'd guess you're probably a bit on the thin side.

While there's lots of posts in the archives about what aspects of mechanics, fast-twitch, strength, etc. help velocity, it is a simple fact that your autonomous nervous system simply won't let you throw so hard that you overcome your body's ability to decelerate all that momentum ... you'd fall over. If you aren't already, talk to someone that has expertise in a training program and specific muscle groups important to pitching ... legs, torso, back. A race car has to have excellent brakes and wins races by being to out-brake other cars into the turns. A pitcher's body that throws with more velocity has to be strong enough to decelerate all that momentum without falling over or breaking down body parts.

It won't necessarily make you throw harder, but it will allow you to throw harder.