Measuring Dry Exhaust
 

any tips for measuring stainless marine dry exhaust? Motors and manifolds are installed. Used some exhaust plugs in transom, straight edge, etc. any tips to make it easier and ensure I am getting good measurements. Thanks.

That link corroborated my distance between exhaust holes 27 1/4. Didn't help with much else.

dry means solid no hose no flex all the way thru transom? thought so. you have existing holes from previous exhaust. can you stick risers thru or line up with existing holes? cuz then you can get an eyeball guesstimate how far off from where they need to be. and I assume you called SM and asked where in relation to stock holes and they said something like "not my yob mon?"

We used PVC I bought at Lowes. When everything was lined up and right screwed it togather and marked them. Sent off to CMI and they made the tails.

We did buy the flanges to match my headers so everything was bolted up.

yes dry thru transom no flex tubes. right now I have been measuring from top of manifold to existing holes to give them measurements to make custome tails. Just a bit nervous given the tails are a one time shot and 3000 dollars

was thinking about making a pvc mock up. I was mainly concerned with stuff moving during shipping. All myeasurements have been consistent across all 4 tails. Meaning distances are all within 1/8" of each other if not identical.

Ok, you have no tails yet? And this is getting measurements to get SM to make tails to line up to existing holes? I thought you had new exhausts and hadda cut new holes. Make cardboard template that just fits over each transom assy top with holes cut where exhausts are. Then do the same on the inside. Then switch templates and make sure they are the same both sides and send that to SM along with pics.

So they are standard width, what about how far above the gimbal stud line like in reference A ?

SM didn't give you a spec sheet like what Lightning has to measure to/from/where ? Like this
http://www.cpperformance.com/instruc...mtailpipes.pdf

When I measured for my Lightnings I bought new, I had to measure the standard stuff (A & B) in the link that was posted above and how far through the transom I wanted the tips to stick out.

hope this shows up.

It didnt move becuase cause we screwed togather but just in case marked across everything. Also marked where we wanted hose bib.

i have that sheet. It's just implementing it and getting accurate measurements is the question.

so how long did pvc tails hold up? I actually tried this. Stock 350. My first thru hull conversion. Wet exhast. 2 weeks.

lol

I hope you are joking!

nope. but I only wasted 8 bucks or so. I figured that is a rubber hose. this is hard plastic pipe. How different can it be? found out.

:bong:Wow

Another question. My current setup with the cmi e tops has 2 hoses that run from the engine

1. Bypass to the collector
2. T stat to the manifold

what is everyone doing for plumbing routing on the stainless marine as there is only one location for plumbing. I was thinking about joining the two together via a fitting then sending it all to the manifold. The other option is adding an additional bung to the riser/tail.