82 GS1100E Mr Turbo Rebuild

[Longitudinal]

18 lbs boost.

That's much more than I was expecting. Are the pistons and/or rods non-stock? How is retarding of ignition managed?

[oldGSfan]

My son has a GoPro type camera (a Rylo FWIW) and a chest mount, I will try that. Honestly I'm going to be old and slow on this thing. Even though I ride a 150HP Multistrada, and have owned and ridden several 750 and up bikes - probably north of 100K miles all over the world - I am cautious by nature and know that my reactions and vision aren't what they used to be. Have to be honest with myself. I've never been a fast rider, just a competent and careful one. So why a beast of a turbo? Because it's cool and I like it, even if I never redline it that's OK by me - better a live pussy than a dead duck

I need to see/hear audio/video. I NEED it!

[Rob S.]

I need to see/hear audio/video. I NEED it!

[oldGSfan]

18 lbs boost. I've only ridden it a few hundred yards, so I can't judge by that. I will see how much I can get done today, the too big tire from front will be fine for rear of my '73 CB750 and the smaller front should be right for handling.

[Longitudinal]

I'm curious how well mannered it is on the street?

So am I! I would also love to know what the jetting is on the carb.

[93Bandit]

Awesome! It's nice to finally hear some numbers. I'm curious how well mannered it is on the street?

[steve murdoch]

It will be interesting to know what level the boost was for the recorded runs.
A couple weeks from now when you are bored with the 183 hp you will need to know how much to turn it up. haha.

[dorkburger]

So cool. .

[oldGSfan]

Yeah at least, this is at the wheel not crank, guy said probably has 80 HP at wheel stock. He said it was extremely well built and has hot cams so it idles lumpy at about 1500 RPM (13.5 air-fuel ratio), and he had it up to 11K on a couple runs as there's no rev limiter. There are no charging issues, it was due to not having resistor on plug. 80MPH in 3rd gear is monster wheelie time. I have a couple things to fix, the front springs should be replaced but I may try a spacer just to see how it works. The petcock leaks at the bolts, but I have new sealing washers. The centerstand is coming off, it rubs the chain as there's no stop, and it's too short anyway. Little stuff I can do in a day or two before riding. Here is one of the runs.

A hundred or so extra hp from stock? Fantastic!

[steve murdoch]

Bike done. 183 HP on the dyno, not sure the boost he was using yet. I told him to go easy . Going to pick it up today, am so amped up to ride it - I better settle down....

A hundred or so extra hp from stock? Fantastic!

[bull958]

Turn it up, don't be a pussy. 183 is hardly enough to get into trouble with. LOL

[oldGSfan]

Bike done. 183 HP on the dyno, not sure the boost he was using yet. I told him to go easy . Going to pick it up today, am so amped up to ride it - I better settle down....

[Longitudinal]

Read the posts by Rajay on this link, they are very informative on the HSR and draw-through overall. The numbers are more than double what you are after so the HSR42 is fine. There is a wide variety of main jets. Also this YouTube video of a '74 Z1 with the same setup putting out 120HP is a good watch.

Thank you very much. I have started a new thread so as not to clutter yours needlessly.

[oldGSfan]

Read the posts by Rajay on this link, they are very informative on the HSR and draw-through overall. The numbers are more than double what you are after so the HSR42 is fine. There is a wide variety of main jets. Also this YouTube video of a '74 Z1 with the same setup putting out 120HP is a good watch.

Thank you. What have you learned to be the maximum power that can be squeezed from that carb? I would like to build a turbo GS one day, and think around 120-130HP would be more than enough. I'm not trying to threadjack.

[Longitudinal]

I'm far from an expert but sharing what I read up on.

Thank you. What have you learned to be the maximum power that can be squeezed from that carb? I would like to build a turbo GS one day, and think around 120-130HP would be more than enough. I'm not trying to threadjack.