News about turbochop

General 750 turbo related discussion
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turbochop
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News about turbochop

Post by turbochop »

To the members of this forum. It has been along time since turbochop did any posting ( feb 2018) it is because he sadly passed away in July 19, 2018. I am his brother who looked after his estate. I have his Turbo chopper bike and I have been working on it on & off since 2021. One big problem is getting registration correct since it is a custom Amen frame. It has to be inspected fully before it can be roadworthy and transferred to my name which only them I can have it for sale. I have some history with this bike as I drag raced it for one year. I won a Dyno shootout with turbochop's bike that same year (Mission drag way B.C.). 108Hp It got me a 500 dollar (Canadian) Drag Specialties gift certificate. I am close to get the bike inspected for it's U-built tag, but I still have an issue with the Throttle sensor. It needs to be adjusted almost fully clockwise before it will idle. It is so much that the throttle cover can not be installed. I would be thankful if I could get any fixes for this problem. The other problem my brother had a after market turbo boost gage on it It would be nice to have it functional.
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turbochop
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Re: News about turbochop

Post by turbochop »

More Current photos.
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turbochop
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Re: News about turbochop

Post by turbochop »

Oops, I guess the factory gauge is electrical. I guess the boost sensor is electronic ,but there is a hose connection off of the Surge tank to the boost sensor, and that's where the small hose to the the mechanical boost gauge is connected. Anybody else has connected a mechanical boost gauge this way? Does anyone have the electronic schematic of the Throttle sensor position checker 57001-1003?
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racink
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Re: News about turbochop

Post by racink »

Sorry to hear about turbochop
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Re: News about turbochop

Post by turbochop »

Thanks racink. I glad to to be able to post to this awesome forum. These 750 turbo motors are quite the peace of history. The rival between my brother and myself go back to the early 1980's. I had bought a 1978 CB750 brand new in December of 1977 ( I still ride it today). Turbochop bought a used Kawasaki 1977 KZ650, and he was happy because he could beat my CB750. After having an accident on his KZ650 (Craze car driver) he decided to build a chopper with the remains of his 650. So in those pictures is the original paint job from the eights It was very bad so did some poorly done touch ups on it. I was buying all kinds of chopper magazines and both agree that the amen frames seem to be the best chopper frames available. He build his chopper first and it was so cool that I build my the following year CB750 in an Amen frame also (with 836 kit). Well as it goes the 836cc was now faster that the KZ 650, so that did not go to well with him. He found a local wrecked 750 turbo bike for sale at the bike wreckers. There was not much left of the bike just the motor and the electronic. He put in his chopper frame, and now he was king again. I remember doing all the electrical wiring. It was a nightmare. I made it run, he had to put in the Amen battery box( which I had to clean up again ) Putting a 1080cc CB750 in my Amen to beat him did not beat his turbo 750 it was close ( I would win the 60 foot launch). He did match the claimed quarter mile of 10.78 seconds with the Amen frame, and I almost matched the 110HP claimed.
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racink
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Re: News about turbochop

Post by racink »

What you do with the dragster with the Harley motor?
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turbochop
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Re: News about turbochop

Post by turbochop »

My brother sold the dragster in 2017. It was converted back to the engine blower belt drive system. I still have the Harley Evo motor, and all the parts that was used in making the unique dragster. Because it was classified as a double engine he could not race with the other racers(Demo only). It was not as fun.
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riturbo
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Re: News about turbochop

Post by riturbo »

Sorry to hear about Turbo chop.

I always enjoyed reading his post and vids.
Was wondering why he hadnt posted.
Thanks for all the cool pics.
Do you still have his other turbo?

Not sure on the tps thing. Im sure someone smart will post soon.
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Re: News about turbochop

Post by racink »

Yea turbobagger?
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turbochop
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Re: News about turbochop

Post by turbochop »

The second blue turbo bike ( the one that could not find his transfer papers from the owner he had bought from) that one? I had to sell it to pay out standing bills (Second mortgage). It was hard to sell things during the corvid. I am still dealing with unsold items, but the bulk was sold. His property was a big deal, but friends came threw and two years later I got some of my life back.
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Charlie @ Evergreen
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Re: News about turbochop

Post by Charlie @ Evergreen »

Sorry to hear about your brother passing away. Wondered why had not heard from turbochop in so long.
Hopefully someone had the symptoms your having that will help in getting engine running right.
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Re: News about turbochop

Post by georgew4714 »

turbochop wrote: Tue Mar 26, 2024 11:19 pm Oops, I guess the factory gauge is electrical. I guess the boost sensor is electronic ,but there is a hose connection off of the Surge tank to the boost sensor, and that's where the small hose to the the mechanical boost gauge is connected. Anybody else has connected a mechanical boost gauge this way? Does anyone have the electronic schematic of the Throttle sensor position checker 57001-1003?
Yes .... when installing a mechanical boost gauge , it's plumbed to this nipple . Usually we install a T-fitting between the nipple and the boost sensor and run the line to the mechanical gauge . I believe the boost sensor converts the boost pressure to an electrical signal that the factory gauge uses to display boost level.

Sorry to hear of the passing of your brother . Good luck moving forward
84 750E1 ,zx7 swing arm & rim , Zr7s shock ,dyna coils, k&n , bov , afpr , variable resistor for race mode. Ported spider ,dump pipe , Evergreen billet HT-10 , RTI hydraulic clutch .
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turbochop
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Re: News about turbochop

Post by turbochop »

Thanks georgew4714 . That's where I have the mechanical booster gauge connected to (with a tee). I put 40PSI of compressed air back into the hose at the boost gauge and found that there was air leaking at the booster gauge sensor fitting( with Soapy water). I put a small hose clamp to seal it, I could also hear the air going out some place but it turned out to be feeding into the engine via open intake valves. There was no other leaks around the surge tank and plumbing ( again soapy water ). Who makes is good boost gauge ?
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