CW Artical on Turbos - Wrist Twisters
 
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post #1 of 20 Old 04-07-2011, 08:00 AM Thread Starter
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CW Artical on Turbos

Just got the new CW issue in the mail on Monday and in it was a great Article on the middle weight turbos of the early Eighties. I knew of the GPz750 Turbo and of the SECA 650 Turbo but it was cool to see that Honda had two (CX500 and CX650) and Yamaha with their XN81. Reading the article made me realize I want a GPz750 Turbo. I would love to get one for cheap and just spend next winter fixing it and restoring it back to original. I think I have a Craig’s List quest coming up.

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post #2 of 20 Old 06-09-2011, 07:39 AM Thread Starter
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Man no one read this artical or had a Turbo bike back in the 80's?!?!?

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post #3 of 20 Old 06-09-2011, 08:33 AM
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Nope, never had one. Saw a CX650 Turbo for sale a longass time ago from cyclesalvage.net, but hasn't really since. That article was written by Peter Egan; my all time favorite MC columnist. Good luck with the quest.

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post #4 of 20 Old 06-09-2011, 09:27 AM
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Quote:
Originally Posted by 07919Dave View Post
Man no one read this artical or had a Turbo bike back in the 80's?!?!?
My brother in law owned the CX650 Turbo Honda in '83. I owned an '83 GS1100 at the time. We had a ton of fun making up acceleration contests. At our mile-high altitude, we would run dead even to about 90 mph; then the Honda would blast past and keep gaining ground until I gave up at 120mph or so. The paint job and finish on the Honda was excellent; the riding position was perfect for the twisties and high mileage tours. I didn't notice much turbo lag, probably because of the horsepower hit when it got rolling. I don't recall the boost pressure, but it was pretty high (20 lbs or so?)

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post #5 of 20 Old 06-09-2011, 11:46 AM Thread Starter
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Yeah I believe that artical said the boost in all of them was in the 20 to 30 range. The CX650 was their second choice and the GPz was the first. I loved my non turbo GPz550 and have seen a ton of 750 turbos around. I need the money right now for landscaping other wise I would buy a 750 turbo.
Terry you need to post more, we need more people from CO to post up!

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post #6 of 20 Old 06-09-2011, 11:54 AM
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With the exception of the Suzuki XN85 Turbo I have owned or at the very least ridden every one of those Turbo models plus the rarely discussed 78 Z1R Turbo.

Collectively they inspired me to turbocharge a VTR250 in the early 90's.

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post #7 of 20 Old 06-09-2011, 12:20 PM Thread Starter
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Nice! Which one did you like the best?

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post #8 of 20 Old 06-09-2011, 12:29 PM
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The CX500 was the most refined and elegant of all of them. Precision craftsmanship and build quality on that model bike which oddly was kinda lacking on its CX650 successor...

The GPZ750 was the quickest of all of them as well as the best handling when you tried to intentionally ride fast, but the CX500 still stands out in my mind as just a great bike.

The Seca 650 had a claimed 83rwhp which should have made it a lot of fun, but it always seemed dull and lifeless to me.

My custom built VTR250 was an unpredictable rocketship! The enclosed blow-thru carbs never really worked quite right and based on your lean angle and how the float bowls filled with fuel the boost would kind of come on at different rpms so you never really knew what or when to expect it to spool up properly, but when it did it was something to behold. Nearly doubling the output of the tiny motor and lightening up as much of it as possible including at one time a total loss system with no flywheel at all would launch the front end sky high in 3 gears and rev like lightning.

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post #9 of 20 Old 06-09-2011, 12:32 PM
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Pristine example I saw at the San Mateo IMS show


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post #10 of 20 Old 06-09-2011, 12:39 PM Thread Starter
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It is a nice bike and that is a Pristine example!

750Turbo.com is claiming 10-12psi boost with an ECU "Race Mode" going to 20psi and up. I think trashed the mag with the artical in it but I swear it said all of them where in the 20-30 range.....

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post #11 of 20 Old 06-09-2011, 06:51 PM
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Originally Posted by Lord Duckhunter View Post
Pristine example I saw at the San Mateo IMS show

There was one of those for sale at my local Honda dealer last year. They had it in on consignment. Look like a cool bike and was in pretty good shape.

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post #12 of 20 Old 06-09-2011, 06:56 PM
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There was one of those for sale at my local Honda dealer last year. They had it in on consignment. Look like a cool bike and was in pretty good shape.
If you saw it at GW, it was "Shane's".
If you saw it in Edmonton, I'm sure it was "Greg's".

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post #13 of 20 Old 06-09-2011, 07:13 PM
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Back in '84 I bought a VF1000-F and had a blast with it.

One day while out riding the back roads I ran into a guy riding a GPx750 Turbo, and we rode together for a while.
That 750 Turbo is an incredible bike. He was a better rider and ended up teaching me a few things. Later when we stopped for a rest he let me know that he'd pulled a few tricks to increase boost, plus a couple other things.

Fun times!

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post #14 of 20 Old 06-09-2011, 07:57 PM Thread Starter
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found one in DEnver for $2500. The thing is in bad shape cosmetically and I am not sure whats going on mechanically, and the guy wont entertain any thing less than asking.

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post #15 of 20 Old 06-11-2011, 10:41 AM
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Quote:
Originally Posted by 07919Dave View Post
found one in Denver for $2500. The thing is in bad shape cosmetically and I am not sure whats going on mechanically, and the guy wont entertain any thing less than asking.
He probably read the CW article and decided the market is now officially HOT for turbo bikes!

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post #16 of 20 Old 06-11-2011, 08:55 PM
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Originally Posted by mcromo44 View Post
If you saw it at GW, it was "Shane's".
If you saw it in Edmonton, I'm sure it was "Greg's".
It was a Honda dealer near Grande Prairie. That's weird that 3 of these old bikes were for sale in Alberta all at the same time.

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post #17 of 20 Old 06-11-2011, 08:58 PM
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It was a Honda dealer near Grande Prairie. That's weird that 3 of these old bikes were for sale in Alberta all at the same time.
Mind boggling.

Also, and not meaning to jack this thread.

Are you one of the ones interested in doing a track day or night in Calgary or Edmonton ?

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post #18 of 20 Old 06-14-2011, 06:05 PM
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Originally Posted by mcromo44 View Post
Mind boggling.

Also, and not meaning to jack this thread.

Are you one of the ones interested in doing a track day or night in Calgary or Edmonton ?
You bet. Would love to test my suspension at a track to really see what it could do.

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post #19 of 20 Old 06-23-2011, 12:43 AM
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I picked up a steal of a bike while I was deployed. A 1984 GPz 750 Turbo for... $900. Some guys on ADVrider even delivered it for me... here's the thread for those of you who are interested. A GREAT group of guys over there.

Any inmates want to help a soldier out? (Check out a Bike) - ADVrider

I hesitated to title it as such, but I had asked around in MO for someone to check out a VF1000R for me and the mods re-titled it as such, so I put it up there. Really, I cannot say enough good things about the fellas at ADVrider... hell, they even pointed me in the direction of WristTwisters when I picked up my 9'er!

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post #20 of 20 Old 06-23-2011, 09:31 AM Thread Starter
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Now that's a GPz I would take

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