Some people, don't understand the challenge though... Those who do, usually don't ask questions like "what motors work in my 916" because most of those who are able to make the job happen, already know the answer to that question.
I wanted to put an S50B32 motor into one of my BMW's. Its a direct swap and would probably allow my car to be worth more money. Yet, I decided against it, due to the fact it was a project that would have never ended...
Needless to say, I didn't ask too many questions about the swap on the forums, I read... found the answers, talked to guys who had success with it before, track down a motor, even bought the motor hoist.
Oh well... I'm stickin' with the only desmoquattro R motor ever made, in my desmoquattro frame! heh
If you don't care about resale, just buy the proper frame. I mean, its pretty cheap to find a 998 frame now a days and it will work with pretty much all the testastretta's. This way everything is bolt-up and it works when you're done, without having to cut, weld, drill, guess... yea, its all stupid.
A 916 frame should fetch $400 bux online and a 998 frame usually goes for around $1000 bux. So spend $600 bux on the frame, $2500 bux on a 999S or 749S motor. You'd still need a 998 airbox though you could probably do the xx9 dash and xx9 wire harness w/the smaller ignition coils. Lots of wiring to do, but its been done, proven to work and it works great! PLUS holds value!
I always ask people, why spend thousands of more dollars on such an old bike? Its just silly... I did it, I was stupid... I don't want others to follow in my footsteps.
So you don't have to drill-out the engine mount to make it fit?You don't have to "cut or weld" to put a teststastretta engine... The only things to do its to modify a small parts of the throttle body and move the igition coils... The modification takes 10 minutes the first time. Read my post. And less 1 hour separate my 2 pictures...
So you don't have to drill-out the engine mount to make it fit?
How do you make the 998 airbox fit?
To put a testrastretta engine you have 2 way...I've been present for one of these "upgrades". Its a lot of work... IDK what magic you have, but a link to a web site, maybe some closer pix... that might help.