Which dual stinger pipe are you working with? Is it the 67/80 pipe that has the angled muffling section?
Michael, I designed the dual stinger pipes to be very quiet and to have less back pressure than the single outlet pipes, not sure why you would cut the 270 degree deflection chamber off to replace with a noisy can muffler?????
hi don,yes it has the angled back. i was told it was a 80/90 pipe,so i guess i was told wrong. i tried it an a 90 vac and it was ok. i have way too much time on my hands.
i have only used this pipe a few times and spoke to a guy that said he was not concerned about being louder and gained more performance by taking of the stock 2 outlet can.from my 35+ years of running nitro engine's a quiet restrictive pipe with lots of back pressure will never go faster that a free flowing pipe.i have opened up the outlets to a much larger size(.470) but have not tried it yet.
That pipe works extremely well on 67s and 80s, might be a good one on the VAC91. I wouldn't cut the can off, there is not as much back pressure on that pipe as you think. Spend more time with setting the length right until you hit the sweet spot.
hey don,was thinking about trying it on a 1/8 scale(only .67 boat i have and 1 .80 boat). i will give it another shot on the .91 VAC.the most fun i have with the whole hobby is trying different pipes and props to see and learn what does what.
hi tom,what motor do you run that pipe on in sport .40?? thanks,mike.
hi tom and steve,i never even thought about trying it on a .45 motor because i thought it is such a large volume pipe it would never work.thank you all for the replies,mike.
longer than 11-3/4"?
yes also noticed that too about the heat and i could not figure out why?
okie dokie,i will have to give it a try,thanks.
