Admin,
Thanks for reminding me of the "no cost" Spec Checker on FLA.com.
See "Old Dogs (or a Dingo or two) Can Learn New Tricks". Heck, at this point I learn a new route to the bath room every day.
Regards,

You could also go to this Forkliftaction website. On the left hand side of the page click "Spec Checker".

We are a bit behind and it is not quite up to date but there is a lot of info there.
Cheers

Don't think you'll have any luck finding a site that provides what you are looking for.
You best bet would be to locate a a website for each lift trucks manufacturer, many (not all) have their spec sheets (some down loadable) on their. Big job.
There is a company in the US "Lift Truck Guru" that does a nice job in collecting & assembling lift trucks data in a concise package. Most of the data they collect are for current production model lift trucks sold in North America. Of course, this is not "free" you'll need to get out the check book - you won't need the BIG checkbook. Do a Google search to get there contact info.
No aware of similar companies in Europe, Asia, etc that publish a similar product. Maybe folks from those areas can provide direction.