changing cam shafts


Information and questions on GL1500 Goldwings (1988-2000)
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BadBowTie
Posts: 40
Joined: Fri Mar 30, 2012 3:44 pm
Location: Columbia, Missouri
Motorcycle: 1981 GL1100 Interstate
1998 gl1500 se

changing cam shafts

Post by BadBowTie »



does any one know or has changed the cams in a 1500 wing. looking to do what is referred to as an RV cam, or towing cam, for low rpm torque?



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Andy Cote
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Location: Windham, ME
Motorcycle: 2015 Goldwing, basic black

Re: changing cam shafts

Post by Andy Cote »

Hot Rod Lincoln, err... Goldwing! What's not to like about that.

I do not recall ever seeing such an offering of revised camshafts. There are a couple variants of a "trigger wheel" that changes the ignition timing which may improve low end performance. There also is a service bulletin for 1988 bikes to improve low speed response.

I would wonder if maybe an ECM upgrade might be available from Guhl.

I have seen information on a turbocharged GL1500 but it seemed to be a one off.

You probably already know about the GL1500 Valkyrie. Basic block is the same but six carburetors and solid lifters make most of the top end(s) different. There are two factory Valkyrie ECMs, one for Standard and one for Interstate. There were several Valkyries that had Superchargers installed. :o These usually had Hyper-Pro (I think) ECMs.

There is a gentlemen on the Valkyrie boards that goes by Attic Rat. He does exceptional work and improvements on the Valkyrie. He may be willing to work his magic on the Goldwing engine.
Last edited by Andy Cote on Thu Nov 19, 2020 12:15 pm, edited 1 time in total.
2015 Goldwing, basic black

Previously: GL1200 standard, GL1200 Interstate, GL1500 Goldwing, GL1500 Valkyrie Standard, 2000 Valkyrie Interstate, many other Hondas

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Andy Cote
Posts: 469
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Location: Windham, ME
Motorcycle: 2015 Goldwing, basic black

Re: changing cam shafts

Post by Andy Cote »

let's see if this works


Wingadmin,

I hope this is ok. I have no financial interest in this company.
2015 Goldwing, basic black

Previously: GL1200 standard, GL1200 Interstate, GL1500 Goldwing, GL1500 Valkyrie Standard, 2000 Valkyrie Interstate, many other Hondas

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bellboy40
Posts: 781
Joined: Fri Nov 27, 2009 1:13 pm
Location: Brewton, AL
Motorcycle: 2000 GL1500SE Candy Spectra Red

Re: changing cam shafts

Post by bellboy40 »

I'm just curious why you need more low end torque for the 1500. In stock form it has gobs of low end torque. To answer your question, I have never heard of any place to get a different cam for the 1500.

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cihilb
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Location: Natrona Hts., PA
Motorcycle: 2012 Pearl White

Re: changing cam shafts

Post by cihilb »

What are you towing that you need more torque? When I had my 1200, it had tons of low end. I pulled a 450lb Bunkhouse camper and never had any problems pulling out. High end was a different story. I had to run 4th gear on most small hills.

BadBowTie
Posts: 40
Joined: Fri Mar 30, 2012 3:44 pm
Location: Columbia, Missouri
Motorcycle: 1981 GL1100 Interstate
1998 gl1500 se

Re: changing cam shafts

Post by BadBowTie »

trailer full of camping gear. it does ok but i want more.

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cihilb
Posts: 351
Joined: Sun Nov 22, 2009 9:20 pm
Location: Natrona Hts., PA
Motorcycle: 2012 Pearl White

Re: changing cam shafts

Post by cihilb »

Andy Cote wrote:
Thu Nov 19, 2020 11:56 am
Hot Rod Lincoln, err... Goldwing! What's not to like about that.

I do not recall ever seeing such an offering of revised camshafts. There are a couple variants of a "trigger wheel" that changes the ignition timing which may improve low end performance. There also is a service bulletin for 1988 bikes to improve low speed response.

I would wonder if maybe an ECM upgrade might be available from Guhl.

I have seen information on a turbocharged GL1500 but it seemed to be a one off.

You probably already know about the GL1500 Valkyrie. Basic block is the same but six carburetors and solid lifters make most of the top end(s) different. There are two factory Valkyrie ECMs, one for Standard and one for Interstate. There were several Valkyries that had Superchargers installed. :o These usually had Hyper-Pro (I think) ECMs.

There is a gentlemen on the Valkyrie boards that goes by Attic Rat. He does exceptional work and improvements on the Valkyrie. He may be willing to work his magic on the Goldwing engine.
Along with six carbs and solid lifters, I believe it had different camshafts. Sort of like the high lift cams in high performance race cars. Lot's of $$$$ for something that may not make a lot of difference. The Valk was also lighter than the Wing. Valk, 681 lbs, Goldwing 1500 820lbs.
Last edited by cihilb on Tue Nov 24, 2020 6:13 pm, edited 1 time in total.

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cihilb
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Re: changing cam shafts

Post by cihilb »

BadBowTie wrote:
Tue Nov 24, 2020 5:32 pm
trailer full of camping gear. it does ok but i want more.
By the time you put that kind of money in a 1500, you could probably buy and 1800.
The 1500 has 100 HP and 110 lb ft of torque. The 1800 has 124 HP and 125 lb ft of torque.
My 1800 can pull the same Bunkhouse near anywhere in 5th gear.

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DenverWinger
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1980 GL1100 STD Vetter (2005-)
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Re: changing cam shafts

Post by DenverWinger »

The 1500's have a goodly amount of torque. Mine traveling 2-up on the 2 lane highways in central Kansas was able to maintain the 65mph speed limit pulling a 550# fully loaded camper trailer up some pretty significant grades without downshifting from high gear or assisting the cruise control to full throttle, I was impressed. In fact, I don't recall a need to downshift at speed for any of the highway grades we encountered on the trip from Colorado to Wisconsin, then Michigan and back.

I grant you, don't expect to accelerate on a significant up grade in high gear with that kind of load, but if you aren't losing speed on the hills you should be good. BTW, the 1500 is more than happy to hum along at highway speeds all day in 4th if that's what it takes, but unless it's a pretty steep hill you shouldn't need to do that.

Is there maybe some issue with the bike causing it to not perform to its full potential?
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

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FM-USA
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Re: changing cam shafts

Post by FM-USA »

BadBowTie wrote:
Tue Nov 24, 2020 5:32 pm
trailer full of camping gear. it does ok but i want more.
MORE POWER?
If you can weld, harness up 2 Wings side by side in front of your Chariot. ;)
.




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