1974 Kawasaki Z1 900 ATP RayJay Turbo Restoration & Dyno, Drag Bike
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- Опубліковано 8 лип 2019
- 1974 Kawasaki Z1 900 Turbo Restoration & Dyno testing. 120HP at the rear wheel! Complete frame-up restoration with ATP RayJay Turbo. Mikuni HSR42 Carb and Z1 Parts Inc. components. Engine rebuilt by Curt Jordan Engineering, Oceanside, CA. TurboKits.com supplied the turbo rebuild kit. Thanks to Marshall Instruments for gauge help!
Thanks to our sponsors
grizzlygearcompany.com/ I am wearing the hat in the video.
Curt Jordan Engineering
z1parts.net/
www.turbokits.com/
www.marshallinstruments.com/
www.outridermotorsports.com/
Here are some of the products used to film this video if you click the links we will receive a commission. Thanks!
Motorcycle parts
amzn.to/2xBdf1s -oil filter
amzn.to/2XF4FcC - Tail light
amzn.to/2xC8qVp - Plastic Glue
amzn.to/2XCgpBj -Replacement Headlight
amzn.to/2xCl8ne -Headlight Plug
amzn.to/2XxxebO -Wire Connector
amzn.to/2Jy71Vy - Air Filter
amzn.to/2XDoAs8 -headlight bulb
amzn.to/2XEAFm3 -Brake in Oil with Zinc
DSLR stuff-
Canon 200d - amzn.to/2Wnhbgq
DSLR bag- amzn.to/2upe2Rw
Nifty 50 lens canon(if you don't have one you need one!)- amzn.to/2WmKFv2
DSLR light(Powerful)- amzn.to/2WmMkkg
DSLR mount for light and mic- amzn.to/2us5h94
Shotgun mic- amzn.to/2WoTt3C
GoPro Stuff-
GoPro Hero 5 battery bundle- amzn.to/2upWwN3
G
I once rode a bike nearly identical to the one in this vid. No turbo needed- it was insanely fast back in the day and is still gorgeous to the max. IMHO. Thanks for a great vid!
Having that modern Mikuni on there makes a big difference.😉
Yes, they barely ran with the stock carb! Thanks for subscribing. -Kirby
Excellent! You need to make more videos. Thanks for posting them!
I don’t remember seeing this “Kaw” in your living room! That Turbo system is fantastic👍
Awesome Bike !! My POPz had a 1975 Z1 900, he put the ATP on in the early 80's, we actually fabricated a water injection system for the bike so we would stop melting pistons. With some head work and wisco 1015cc kit and other after market parts we could pull 9.00 sec in the quarter mile (drag swing arm and tire were used) !! Every motor head loves these bikes and Harley guys might not like ja bikes, but certainly Would take a TURBO Z for a ride !!
Nice. Thanks for sharing.
We built a VMax using a Rayjay kit off a SX1100 ( I think that's what it was).
I made a intake and we used a 2 barrel Weber. The carb stuck up through the fake fuel tank/airbox cover.
Not sure how much power it made. It would spin it up at 70mph (a little unsettling to say the least).
It was a bit of an animal.
We finally blew it up at the track due to a faulty waste gate.
Apparently the motor didn't like 20psi😳 last run was 11:19 at 139mph spinning to the 1000 foot mark. We lost a the rings. Combined compression was about 80% loss. Only one cylinder had 50% left. So the pass was made on just a little less than one and a half cylinders.😁
I'll share this.👍
Awesome video Kirby, our parts look great on your restoration !! Lots of awesome information, keep them coming.
Hey barac!
@@matercheff Hi it's Adriana, but I'll let Burak know you say Hi !! Let us know if you need anything
First of all, you had 666 thumbs up so there's no way I was letting that evil number exist on your awesome video of an absolutely amazing motorcycle.
I had a Suzuki GT750 in '77, it was Blue. I loved that thing. Motorcycles were my life! For anyone that's never had the experience riding motorcycles then your soul isn't fully developed!
I'm a retired Army Tank commander, 61 years old. Unfortunately I'm now disabled and worst of all housebound. I sold my 1981 Suzuki GS1100E, it was silver. It had Wes Cooley handlebars, Kerner headers I loved that bike. It's actually difficult to watch your videos as it makes me wander off to my riding days. Life is almost not worth hanging onto much anymore. Since I've been unable to enjoy the passions that gave me great pleasure, it's difficult to find something that does any longer. Riding my bike was freedom!! I miss it so very, very much.
Enjoy these wonderful bikes,I'm most definitely envious but wish you good luck and health, my friend.
Bobby
Beautiful bike!
In the 9's, that's amazing! Thanks for watching. - Kirb
i have that setup on a '73 900 in a rigid frame chopper with a springer fork, thanks for posting, not much info on these around now to have been so popular just 40 years ago.
Some guys have all the fun. I wish I had my Suzuki Bandit 1200 with the Hayabusa engine. That thing was a blast.
Beautiful machine. I had an immaculate Z1R and always wanted a Z1R turbo.
There's a kit on eBay right now
That’s an awesome rocket!
Similar pipe to a Blake Enterprises pipe IIRC. I use a custom exhaust but everything else is "tc". Added a powerjet to the carb and a separate system that meters fuel straight down the throat and sleeved out to 1075cc. Even with 4 bent exhaust valves on methanol it dynoed at 175rwhp.
It's a draw through or a wet fuel system. The carburetor never gets pressurized as he states because it's Upstream from the compressor. It's called a wet system because the turbocharger is compressing gasoline and Air.
@Kathleen Shaw Kathleen, commendable, but not entirely correct. The early draw thru RayJay turbochargers did NOT have the carbon seal. This can be witnessed by the cloud of smoke on deceleration and the fairly high consumption of engine oil. In FACT the original Z1R TC, had the oil return plumbed into the oil filler cap which proved to be troublesome everytime you needed to add oil. Over 40 years later, this old timer is still building these draw thru, carburetored turbo motorcycles. I'm designing and building my 1981 SUZUKI GS Drag bike, draw thru turbo as we speak. Again, I commend you on your Engineering expertise, but it doesn't apply in this case. Thank you, SARGE.
*My congratulations for the video and being able to see a very special motorcycle when it went on sale in Caracas Venezuela I was about to buy it but it was expensive today when I saw the video I can only say that I congratulate the owner of this jewel. Angel.*
Wooo that sounds good
What a desirable machine. Lucky owner.
Absolutely love it his was going to get the same about 20 years ago and trade my 9th in. But didn't in the end. I did regret it
Yea mate the original paint work is a work of art ,& that super strong Z1A frame with the original suspension
& flimsy swing-arm , should handle that extra turbo power , 🤣 no worries.
Does seem a bit crazy. The original owner of this bike drag raced it in the late 1970's until around 1983.
nice one Mr. Cramer love it, new subscriber here
Kwaka 9 Tuned correctly 75 hp easy with a decent pipe and ignition. Considerable frame twisting going on, with 120 hp mmm I wouldn't be surprised if the chain came off. Saw one of these years ago but it had an CD Stromberg on it. It was on methanol as well. Love the old school wet turbos but you could never really put the boost to them 12 pounds was the end of the world.
Cool ride, never seen 1 of those just kz900
This thing is beautiful, I have a z900rs 2021 in the same color. A turbo build would be amazing to do one day
I would love to ride your modern version!
Thanks for watching. - Kirb
@@cramersclassics
Hey Kirby,
I just saw you this weekend at the Poway Car Show!
If you still want to ride the newer Z900rs version, all you have to do is ask me next time we hook up!
It would be my pleasure!
Scott A.
@@scottashdown3686 Great to see you again Scott. Yes, let's switch bikes at the next ride!
Super Nice& Powerfull Bike :)) )))
I think I'd be just as satisfied with a small nitrous bottle instead of all that plumbing. LOL great video. Thank you.
When I was searching for old RayJay turbo parts I was thinking the same! Lucky Turbokits.com had the parts and expertise to guide me. There were many versions of RayJays and most had different parts. A nitrus bottle would be much easier :-). Thanks to Curt Jordan the carburetion and timing is perfect. The bike runs like stock until the boost comes on. Really fun to ride in any situation! Thanks for watching.
Nice
goodjob👍
New video in the works on the Yamaha RZ350, coming soon. Thanks for watching!
I own a 1978 gs 1000 with atp set up methanol injector that kicks in a 10 lbs boost . So far never got it that high because it scares the crap out of me.boost come on to quickly , hard to control. But fun to ride. Really have to hang on.5000 miles on kit .welded crank also. You have a great looking bike there.
Wow, that sounds really cool. The old wastegates did not work well. So you probably get 15 lbs. of boost. A bit much as I thin 7-8 is about right.
I'm glad you're featuring motorcycles... but a mike clipped to your shirt would help the presentation.
Shirt mike on order :-) Thanks -Kirb
Nice carburetor.
Yessssss
GOOD
I had a Z900 produced 90 Hp on the dyno,was a nice ride.120Hp seems a little low.
I picked up a 1983 Yamaha SECA xj750 turbo ATP
Always wanted to ride one!
I got the same model and colour z1 and a z1000a in my lounge room
Great artwork! Thanks for watching. -Kirb
Phenomenal. Beautiful work. Who does your paint work ?
Chuck Parker does my paint:
parkerairbrush.com/
@@cramersclassics
Thank you. I’m in So Cal. Perfect
too technical for amateur motor bike enthusiasts. but top notch video.
How is this "from vacuum on no boost to pressure on boost"?
The Mikuni sits in front of the compressor-house, and get sucked through?
It is a draw thru design, it pulls from the bottom of the carb instead of pushing thru, like you see now! Current turbo setups are pretty all blow thru, because most engine are fuel injected, so all turbo has to do is push/blow thru the throttle body, back when this setup was popular very few companies used the blow thru design, because you would pressurized the carb, the carbs all had to many places where pressurized air/ boost would go out the carb, throttle shafts, air vents, they weren't as efficient back then, read up on them, there are some neat books out there( I have one called, TURBOCHARGERS by Hugh Macciness, awesome book. There is another book called Supercargers, Fuel Inections, Turbo, I don't remember who it is by , I can't find it in my books.
You better get rid of those rubber bushings in the swing arm or you might feel the deadly kawi wobble
Frames need a little flex (though Kawas were a bit too good at it). A decent set of rear shocks with properly working bushes will do the best job.
Suzuki used fast wear plastic. Fix is bronze or Igus. Polybush better for replacing perished rubber.
Your supposed to use bushings with bearings
Doctors in america must be real good at skin grafts.
Nice bike. I recently picked up an '82 GS1100E with a Mr. Turbo kit, Don Vesco built and raced at Bonneville. Parked in '96 after 184MPH pass, all complete and will be perfect as there is no damage to anything. The bike has a huge S&S Super B that won't allow side cover mounting, plus the original Keihin which by all accounts seems to be a bad choice. So I may go with a HSR42. I'm wondering how it mated up to the turbo, special flange needed?
Sounds like a really cool bike Tom. In my video near the end there is a close-up shot of the rubber carb boot we used with the HSR42. I think we got the carb and boot from Sudco. I discuss the jetting changes in the video too.
You may need to lower the compression as I bet Mr. Vesco was running lots. We used stock low compression pistons. Otherwise you will likely have detonation with the turbo. Finally, make sure the wastegate is working well and start around 7 lbs. boost. We replaced original wastegate with a new one from Turbokits.com , set for 7 PSI.
Cheers, Kirb
@@cramersclassics Thanks - it's got 6.5:1 compression pistons, sleeved down for thicker walls. Lots of goodies inside. I just posted a video, my first... ua-cam.com/video/qHS0I2rBaX4/v-deo.html
@@natodad that's awesome I am going to watch your video next! A lot of turbo kits for modern bikes lower the compression via adding a thin spacer underneath of the cylinders.
@@cramersclassics thanks - it's running 6.5 to 1, sleeved down with thicker liners. I have checked out the wastegate and cleaned it, it's fine. Here is a video I took: ua-cam.com/video/qHS0I2rBaX4/v-deo.html
Thanks Kirby. Am rebuilding the Keihin because it's in hand and easy/cheap - I can just get it running and check things out then upgrade. I'm close to having all parts needed and reassembling. Need a small 1.5" triangular gasket where the turbo pipe meets the turbo unit. May make one, what did you use?
I have had two of these setups I know where there is two of them living under a front porch in Florida ones a z1r in pea green the other is painted blue
For there time they were way ahead of all 8 love my old kawi Suzuki bikes run a 44 hsr we built a waste gate external and made a better intake set up this one is youck you can tell they just made it work played with that up till we had to switch to race gas . The system works great to about 18 psi then it starts getting into detonation. We spurced a bigger turbo from Ray Jay it was used on aircraft engine I miss that bike it was fun I have great memories me on my Hayabusa the original in 99 me and my beat bud falling ass back from beach one nigh him on the kwaker absolutely cruzing at 120 #230am after paying a single mom's rent then having the beaches finest pop a light on us and grabbing a handful of brand new 1300actually seeing just what 202 look like when the speedo says 202your moving that first gen busa was stock except for airboat work pmc silicone k&m my shop built stainless headers 4into 1 sidewinder megaphone stule.drag pipe immade.my own headers so i could run a megaphone for drag races and gonbacknto a stock location but single side high and tight to clear the vortex front and rear sets all i remember was my when i came off the throttle and slowed to wIt for my bid to catchbup he waz right there i didnt leave him i pulled from him but didnt lose him whennhe pulled up.neclxt to me as soon as i came off and he pulled up all i remember is that first time as a young man seeing a header and half down pipe glow my budddie hD his leg on his drag peds on the cosmic arm on that side and waz motioned to pulll over so we got off and sat under overpass burned his leg threw his old kerker two piece riding leathers the kwaker had a auto meter pro comp tach and shift light the bike was a drag bike recall on tach was insane
The camera guy's not paying attention on what Kirby is explaining. Need to see those components, love the bike though
The wastegate is made of, bottom Aluminium and top is steel. You need to keep the piston in the wastegate lubricated somehow (copperslip) otherwise it will stick and overboost the engine without warning. The wastegate sticks due to condensation build up after engine shutdown. The carb(bendix originally) was always a problem. Change the carb to the one used on the old MR Turbo kits, I think it was a mikuni(you might have already done that). The log header pipe needs changing as you will never get the correct mixture across all the ports even. The crankshaft should be welded at the pressed points. A piano hinge or small hindge that flaps to and frow should be fitted into the sump pan to stop the oil going towards the back of the sump under acceleration. If the oil is allowed to go to the back of the sump it will not be picked up by the oil pump. That will cause the bearing yo cease on the rayjay turbo. Adanvce the stock cams by 10 degrees and the acceleration will be better all round.
Great ideas! We have already done some of them. The carb is Mikuni and the wastegate was replaced (TurboKits.com) after the video to tame the boost to about 7.5 PSI. The turbo was rebuilt with new bearings and a KZ1000 Police oil pump fitted for more volume helps the turbo keep cool. I also change the crankcase breather to a later version with dual baffles. Runs even better now.
Thanks for watching! -Kirb
@@cramersclassics You know to put the restrictor in the oil tranfer block don't you? Where the turbo takes it's oil feed from.
@@orsoncart9441 Yes restrictor installed, also making sure the turbo oil supply line is at the top is important. Thanks for sharing your experiences!
Needz Moar Boostzez!!11!
:-)
❤️👍👌
Voilà la moto de mes reve avec la 1000 z
Is it for sale and how much ?
"Brake in Oil with Zinc"?
Brakes usually aren't too effective when they are in oil...
...so I presume you mean "Break-in".
:-)
I think the GS750 SUSUKI will out run it ....thats the 79 model .....
キャブレターの後ろにターボがあるって事はタービンに混合気が流れるって事ですね。私は乗りたくありません。
Dressed to go to the beach then I see 🙄
Please normalize the volume on your videos better.
My flatmate is asleep and the engine sound at ~4:00 was WAAYYY louder than the speech... then your narration after that was way too quiet.
We are working on normalizing the volumes with our new cameras and mikes. Hope to improve on the next ones. Thanks for your advise!