Bus Has Holes in Muffler!

This video was shot at the Illinois Railway Museum on Saturday, September 28, 2019. The bus is 1979 GMC RTS #421 from Janesville, WI. Its powertrain is a Detroit Diesel 6v71 engine coupled to an Allison V730 automatic transmission. This bus could be heard from almost everywhere on the museum grounds.

[@nlpnt]

Putting the scream into "Screamin' Jimmy".

[@christopheryanoski6899]

Back in the 90's as a kid that how you knew the bus was coming blocks away.

[@stevek4449]

Hope they kept the holes! Sounds like the 2 strokes used by the GMC new look fish bowls! Ahh the child hood memories that come rushing back!

[@diyoverhauler5432]

I love that sound. I really miss those buses

[@freddiejames2083]

Oh hell yeah that's what I'm talkin about RTS 6v71 Detroit diesel power 🤗🤗🤗🤗💪🏽💪🏽💪🏽💪🏽

[@ETBX1]

The initial acceleration sound is so bassy, it sounds like it's going to be an 8V71, but once the rpm's are up as it speeds away, it's the familiar 6 sound! For some reason I like when 6's sound as heavy as 8's.

[@knightclassic1]

Grew up riding RTS with that exact Sound at Kalamazoo/ Battle Creek, Michigan and Gary, Indiana GPTC

[@lesliemiros6743]

St Bernard Parish had two RTS buses had that same motor sound

[@lesliemiros6743]

Most of the ones we had in Houston, Texas sound like that too

[@lolfunnycp]

Throaty Detroits? Oh hell no!! X_____X I can't

[@ENYoriginal]

I used to hear these as 1981 and 1983 models in NYC a lot. Only NYCTA and MaBSTOA had these. The last hurrah was in 2001....

[@keontreadwell4063]

I wish the NYC/MABSTOA 81s and 83s RTS had 6v92 engines in them

[@knightclassic1]

I hear Queens and Staten Island Depots hated those 1981s because they were so Slow going up the Hill (Like FIshbowls) , Some had No-Power Steering

[@milestone_achiever4634]

I remember the 3500s that ran out of Gun Hill.
I used to take the Bx39 bus to and from school. However, my absolute favorites were the 1990 RTS buses in the 8000s. I believe some were modified by the MTA by giving them a higher idle and some other engine mods. And man when they used to get going , they sounded just like a Chevy 305 small block. I kid you not!!!!

[@Ballsarama]

I used to drive one like this at NIU in DeKalb, IL. Loved them.

[@Crosley-1520]

Sounds better like that!

[@schnuurtchke]

Sounds good man!

[@caseystrange]

Janesville used those buses back in the 90s and early 2000s. They use new ones now. Different colors and layout.

[@Firewertyhn6817]

very sad what old style buses not anymore(

[@WARD5KUSTOMZ]

Dont fix it! It sounds perfect 👌

[@TheCRTman]

I like the shift

[@jorgefigueroa4437]

1980 and 1983 San Juan AMA GMC RTS units, the best the first order consist of 126 units replacing 1962 and 1968 GMC New Looks, and part of the 1970 Flxible New Looks, the remaining renumbered to 723XX and 724XX units

[@mrceleb2006]

Janesville, WI had a GM assembly plant!

[@Trezon235]

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[@isaacsims6203]

To me the best sound on tbe rts was the 6v71 with the allsan 731R

[@devonsatchell]

Damn. I want more

[@macelius]

Try my old 8v71: ruclips.net/video/CsG2qMCmLYE/видео.html

[@lesliemiros6743]

St Bernard Parish had two RTS buses had that same motor sound

[@DARKNIGHT-525]

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