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quartermilecamel
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Joined: April 16, 2008
Posts: 3339
Location: ohio
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 Posted: Mon Apr 16, 2012 12:28 pm Post subject: Engine rpm at 60 in a stock un messed with 68 bus |
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Hello, my dad had a 1968 bus in 1974. I was curious as to if his engine turned the same rpm as the split buses did. My 64 bus has the 1967 gearing and tires. We were on the phone last night and were talking about how he hated his bus as it was severely underpowered(stock everything). We used to go backpacking in the california sierras and tollhouse grade as they call it was a steep long incline. He couldnt get it out of 3rd gear on that stretch of road. I know his bus was heavier than mine is because it was a camper, so that alone would make it slower. Did the early stock bay window buses have a taller over all gearing ratio? Im guessing they did but not sure and he cant remember how fast he could go. Wondering what his 60mph rpm was, but of course I was 5 years old at the time 
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SGKent
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Joined: October 30, 2007
Posts: 17550
Location: State Capitol CA (Sacramento)
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| Posted: Mon Apr 16, 2012 1:04 pm Post subject: |
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Did they teach you how to research things when you were in school? If not please tell me what changes we need to make in our education system so that people in this county are self-sufficient. It took less than two minutes in owner's manuals here to find and post these pages with gearing and rear axle ratios.
1964
1967
1968
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Steve aka Merlin the Wrench
formerly Steve's Racing and Engine Blueprinting. Wrenching since 1967.
bdamico on GF wrote | Quote: | | "When I was your age I'd plan out all sorts of stuff for the future and almost none of them came true. Just wonder if it's worth trying to be a crystal ball. " |
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Amskeptic
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Joined: October 18, 2002
Posts: 7130
Location: All Across The Country
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| Posted: Mon Apr 16, 2012 10:30 pm Post subject: Re: Engine rpm at 60 in a stock un messed with 68 bus |
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| quartermilecamel wrote: | | Hello, my dad had a 1968 bus in 1974. I was curious as to if his engine turned the same rpm as the split buses did. My 64 bus has the 1967 gearing and tires. We were on the phone last night and were talking about how he hated his bus as it was severely underpowered(stock everything). We used to go backpacking in the california sierras and tollhouse grade as they call it was a steep long incline. He couldnt get it out of 3rd gear on that stretch of road. I know his bus was heavier than mine is because it was a camper, so that alone would make it slower. Did the early stock bay window buses have a taller over all gearing ratio? Im guessing they did but not sure and he cant remember how fast he could go. Wondering what his 60mph rpm was, but of course I was 5 years old at the time |
Pay no mind to the rude guy, I will pay for a three martini lunch for him when I come through, that should mellow him out. Strangely enough, he did not answer your question.
1968 bus at 60 mph with stock 185 14 tires, 3,570 rpm. overall ratio 4.40
1967 bus at 60 ditto 3,750 rpm. overal ratio 4.6something
Colin
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SGKent
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Joined: October 30, 2007
Posts: 17550
Location: State Capitol CA (Sacramento)
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| Posted: Tue Apr 17, 2012 8:04 am Post subject: Re: Engine rpm at 60 in a stock un messed with 68 bus |
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| Amskeptic wrote: | | quartermilecamel wrote: | | Hello, my dad had a 1968 bus in 1974. I was curious as to if his engine turned the same rpm as the split buses did. My 64 bus has the 1967 gearing and tires. We were on the phone last night and were talking about how he hated his bus as it was severely underpowered(stock everything). We used to go backpacking in the california sierras and tollhouse grade as they call it was a steep long incline. He couldnt get it out of 3rd gear on that stretch of road. I know his bus was heavier than mine is because it was a camper, so that alone would make it slower. Did the early stock bay window buses have a taller over all gearing ratio? Im guessing they did but not sure and he cant remember how fast he could go. Wondering what his 60mph rpm was, but of course I was 5 years old at the time |
Pay no mind to the rude guy, I will pay for a three martini lunch for him when I come through, that should mellow him out. Strangely enough, he did not answer your question.
1968 bus at 60 mph with stock 185 14 tires, 3,570 rpm. overall ratio 4.40
1967 bus at 60 ditto 3,750 rpm. overal ratio 4.6something
Colin |
rude guy - hmmmmph. You did the math for him. Thank you but now I have you pegged as a co-dependent. Still late July here in Sacramento?
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Steve aka Merlin the Wrench
formerly Steve's Racing and Engine Blueprinting. Wrenching since 1967.
bdamico on GF wrote | Quote: | | "When I was your age I'd plan out all sorts of stuff for the future and almost none of them came true. Just wonder if it's worth trying to be a crystal ball. " |
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Amskeptic
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Joined: October 18, 2002
Posts: 7130
Location: All Across The Country
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| Posted: Tue Apr 17, 2012 8:14 am Post subject: Re: Engine rpm at 60 in a stock un messed with 68 bus |
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| SGKent wrote: | | Thank you but now I have you pegged as a co-dependent. Still late July here in Sacramento? |
Crap. You're on to me . . .
Yes, but holy heck, the schedule is a punishing one. That poor poor 1600 singleport, I can only praaaaaaaay.
Colin
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babysnakes
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Joined: August 19, 2008
Posts: 3786
Location: West Boca Raton, Fla.
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| Posted: Tue Apr 17, 2012 12:03 pm Post subject: |
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No need for math. I just ran 500 miles in 2 days in the '72 1600. Average speed was 60 mph. I'm running a VDO tach and spun about 3500 rpm. Verifying the math. 
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'69 SC under resto
'72 deluxe daily
'78 Westy motor transplant in progress
'71 super vert
1st bus, '67 Westy in '83. Thank you '74 Pontiac Ventura.
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aeromech
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Joined: January 24, 2006
Posts: 6019
Location: Ocean Beach, California
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| Posted: Tue Apr 17, 2012 12:42 pm Post subject: |
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All I did was think back to my 1971 bus and what it did. As I remember it the rpm was around 3400 at 60 mph. That was stock tranny being pushed by a 2007cc engine.
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quartermilecamel
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Joined: April 16, 2008
Posts: 3339
Location: ohio
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| Posted: Tue Apr 17, 2012 10:49 pm Post subject: |
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so we gained at least 400 lbs . I wish I could ride in one again and see the power difference. It has to be noticable with those figures AND......his was a camper.
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Looking for the U shaped swing arm for sliding door split. Left hand drive. Baywindow arms are 1/2 inch longer. |
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Mountain Minstrel
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Joined: September 03, 2009
Posts: 892
Location: Fresno CA
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| Posted: Wed Apr 18, 2012 8:54 am Post subject: Re: Engine rpm at 60 in a stock un messed with 68 bus |
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| quartermilecamel wrote: | | Hello, my dad had a 1968 bus in 1974. I was curious as to if his engine turned the same rpm as the split buses did. My 64 bus has the 1967 gearing and tires. We were on the phone last night and were talking about how he hated his bus as it was severely underpowered(stock everything). We used to go backpacking in the california sierras and tollhouse grade as they call it was a steep long incline. He couldnt get it out of 3rd gear on that stretch of road. I know his bus was heavier than mine is because it was a camper, so that alone would make it slower. Did the early stock bay window buses have a taller over all gearing ratio? Im guessing they did but not sure and he cant remember how fast he could go. Wondering what his 60mph rpm was, but of course I was 5 years old at the time |
Are you talking about the 4 lane, relatively straight, freewayish grade, or the winding one that goes up from the town of Tollhouse (this is the Tollhouse grade). If it is the winding one there is no way anyone is going up it in fourth (way to many switchbacks). But the four-lane is no piece of cake grade either. Many modern vehicles cannot pull that in top gear. I have not gone up that way in my '69 with the 1914 in it, but I believe that even that bus will require third gear.
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Ken
69 Westy
99 S-10
04 Miata (Sold)
| Desertbusman wrote: | | Maintenance doesn't mean repairing it when it breaks. That's called repair. |
| miniman82 wrote: | Don't listen to him, people from Fresno are retarded.  |
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quartermilecamel
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Joined: April 16, 2008
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Location: ohio
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| Posted: Wed Apr 18, 2012 1:05 pm Post subject: |
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talkin about all of it all my dad did was bitch goin up it, thats why he turned around and stuffed in a corvair engine in it......then still hated it cause he had to work on it. My dad had the "I have to get there now disease and just had to bomb up that grade with yesterday speed to get to our starting point for backpacking. Squealing tires at times
His 81 chevy surburban went up that grade no problem. It also had to have premium gas too or it would ping its ass off.....great engine.
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Mountain Minstrel
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Joined: September 03, 2009
Posts: 892
Location: Fresno CA
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| Posted: Tue May 08, 2012 10:46 pm Post subject: Re: Engine rpm at 60 in a stock un messed with 68 bus |
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| Mountain Minstrel wrote: | | quartermilecamel wrote: | | Hello, my dad had a 1968 bus in 1974. I was curious as to if his engine turned the same rpm as the split buses did. My 64 bus has the 1967 gearing and tires. We were on the phone last night and were talking about how he hated his bus as it was severely underpowered(stock everything). We used to go backpacking in the california sierras and tollhouse grade as they call it was a steep long incline. He couldnt get it out of 3rd gear on that stretch of road. I know his bus was heavier than mine is because it was a camper, so that alone would make it slower. Did the early stock bay window buses have a taller over all gearing ratio? Im guessing they did but not sure and he cant remember how fast he could go. Wondering what his 60mph rpm was, but of course I was 5 years old at the time |
Are you talking about the 4 lane, relatively straight, freewayish grade, or the winding one that goes up from the town of Tollhouse (this is the Tollhouse grade). If it is the winding one there is no way anyone is going up it in fourth (way to many switchbacks). But the four-lane is no piece of cake grade either. Many modern vehicles cannot pull that in top gear. I have not gone up that way in my '69 with the 1914 in it, but I believe that even that bus will require third gear. |
Had the chance to pull the four lane today (3000 ft of elevation gain in 10 miles). pulled it in 4th the whole way got down to 50 MPH for a short time but pulled back up to 55 quickly. With temps in the mid 90's I never saw more than 210 for oil temp. I think the oil cooler is working. I had a bit of popping on the downhill so I guess I need to get the carbs (solex 35's) synced better before we hit the road for a 4,000 mile road trip.
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Ken
69 Westy
99 S-10
04 Miata (Sold)
| Desertbusman wrote: | | Maintenance doesn't mean repairing it when it breaks. That's called repair. |
| miniman82 wrote: | | Don't listen to him, people from Fresno are retarded. |
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quartermilecamel
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Joined: April 16, 2008
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| Posted: Thu May 10, 2012 11:48 pm Post subject: |
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thanks for sharing. Brings back cool memories.
Dad had the corvair in his but even then he would throw on the dual glass pack mufflers when goin up that grade. We knew we were goin backpackin when he was swappin mufflers. My one true memory was when good ole uncle bill was underneath the front of the bus(they had it on jack stands)...my shit ass evil onry 6 year old mind thought it would be fun to beep the horn. no need to worry...didnt get my ass beat as uncle bill knew what i was up too 
Oh yeah........50mph??? what were you thinking Thats cool to be able to go 50. Still remember dad flippin out goin 35.
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Mountain Minstrel
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| Posted: Mon May 14, 2012 7:48 am Post subject: |
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That would have been on the old grade. That puppy is one switchback after another.
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Ken
69 Westy
99 S-10
04 Miata (Sold)
| Desertbusman wrote: | | Maintenance doesn't mean repairing it when it breaks. That's called repair. |
| miniman82 wrote: | | Don't listen to him, people from Fresno are retarded. |
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quartermilecamel
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Joined: April 16, 2008
Posts: 3339
Location: ohio
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| Posted: Mon May 14, 2012 11:47 pm Post subject: |
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| Mountain Minstrel wrote: | | That would have been on the old grade. That puppy is one switchback after another. |
yeah he went 35 on the new grade of it too, that bus was just plain slow. I doubt he ever did any maintenance on it......that could have been why it was slow. I have proof of his type of maintenance too. Family picks me up at vandenburg air force base......Iwas on leave at the time. We are driving home in the olds and it encounters a small pin hole leak in the upper radiator hose. I told dad I was smelling antifreeze. His comment..."Naw son, we're just in wine country" We were driving through napa valley. If it wasnt for moms bitching, so he would pull over, we would have lost the engine as it had only idiot lights. We pull over, find the leak and it was just right after the top hose outlett thermostat at the engine. Hes flipping out now wondering what we were gonna do. I take out my pocket knife, cut off the bad section, slide the hose back on and away we went. Moms ever so gratefull, and dad just cant believe I did that.
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quartermilecamel
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Posts: 3339
Location: ohio
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| Posted: Tue May 15, 2012 12:49 am Post subject: |
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a 1914 with dual carbs is quite a jump from a 1600 single port engine with stock carb. No wonder why you were able to do 50 up that 4 lane grade.
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udidwht
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Posts: 1567
Location: Seattle, WA./ HB, Ca./ Shizuoka, Japan
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| Posted: Sun May 20, 2012 12:40 am Post subject: Re: Engine rpm at 60 in a stock un messed with 68 bus |
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| Mountain Minstrel wrote: | | Mountain Minstrel wrote: | | quartermilecamel wrote: | | Hello, my dad had a 1968 bus in 1974. I was curious as to if his engine turned the same rpm as the split buses did. My 64 bus has the 1967 gearing and tires. We were on the phone last night and were talking about how he hated his bus as it was severely underpowered(stock everything). We used to go backpacking in the california sierras and tollhouse grade as they call it was a steep long incline. He couldnt get it out of 3rd gear on that stretch of road. I know his bus was heavier than mine is because it was a camper, so that alone would make it slower. Did the early stock bay window buses have a taller over all gearing ratio? Im guessing they did but not sure and he cant remember how fast he could go. Wondering what his 60mph rpm was, but of course I was 5 years old at the time |
Are you talking about the 4 lane, relatively straight, freewayish grade, or the winding one that goes up from the town of Tollhouse (this is the Tollhouse grade). If it is the winding one there is no way anyone is going up it in fourth (way to many switchbacks). But the four-lane is no piece of cake grade either. Many modern vehicles cannot pull that in top gear. I have not gone up that way in my '69 with the 1914 in it, but I believe that even that bus will require third gear. |
Had the chance to pull the four lane today (3000 ft of elevation gain in 10 miles). pulled it in 4th the whole way got down to 50 MPH for a short time but pulled back up to 55 quickly. With temps in the mid 90's I never saw more than 210 for oil temp. I think the oil cooler is working. I had a bit of popping on the downhill so I guess I need to get the carbs (solex 35's) synced better before we hit the road for a 4,000 mile road trip. |
...exhaust leak if popping on the downhill. |
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