Firewall Forward Prints

[pilot28906]

I am planning on a Superior IO360 horizontal induction engine for my RV7 and am working on the firewall trying to make the holes and install plate nuts. I am working with the OP drawing from the firewall forward kit. My question is will the OP drawings work for this engine? I believe they do however has anyone had any trouble with the OP drawings for the Superior engine or can offer any advice or lessons learned?

Thanks in advance.

John

[Thermos]

John,

That's the engine/airframe setup I have as well, and for the most part the OP drawings have worked well for me. I used the OP locations for throttle, mixture and prop cables with no problems.

A few things have required some tweaking, though, like the throttle cable bracket - Superior's cold-air sump has different mounting pads than the Lycoming sump so I had fabricate my own bracket out of 4130. I also had to tweak the mixture control bellcrank bracket a little to make it fit over the sump-to-case seam.

Hope this helps, feel free to contact me off-list if you'd like. There are a lot of pics on my building blog at this page - http://mightyrv.com/?p=3411 - that might help as well.

Dave

[pilot28906]

Dave,
Thanks for the reply; your build blog will be very helpful.

John