This is my current issue I am working through. I bought the titan engine new from the manufacturer. Before I bought the motor I placed a call to Vetterman for one of his exhaust systems, He mentioned that I need to only use the Superior cold air sump with his exhaust. I let the salesman at titan know that tidbit. Unfortunately, with the cowling on I do not have enough room for the throttle servo to mount the induction snorkel, let alone have the approriate clearance with the cowl. It has a little less than 1/4". (See attached photo)
The sump is a superior cold air sump and the throttle servo is a Silverhawk.
I have no experience with either. Unfortunately Titan doesn't make their injection system anymore, that would have been the best option as it was 2 inches shorter. I think I bought the engine right as they stopped making their injection system. The motor was purchased before continental motors bought them.
My question for this forum is which option is best or are there other options that won't cost me power and/or screw up the cowl lines?
A) I go to a 7 degree Titan sump. This means that I can't use the Vetterman exhaust. I will probably have to use the titan exhaust. Will I loose power? The motor dyno'd out at 204hp. The more power the better in my opinion. This means no cowl modification. Depending on what Titan does this could add on a significant cost to the airplane.
B) Modify the cowl with a pimple/blister to accommodate the longer throttle servo and try and fill it as best as possible. The blister will be around 3/4" out on the cowl and would screw up a **** good build and airplane in my opinion.