I Built Another STAGE 1+ GP1800R! (IT'S IMPRESSIVE)

I had my hands on another 2021 Yamaha GP1800R SVHO to do another RIVA Racing Stage 1 Plus with an addition of a RIVA Racing ride plate and intake grate..it put out some seriously impressive numbers for such little done!
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RIVA Ride Plate: www.4-tecperformance.com/index...
RIVA Intake Grate: www.4-tecperformance.com/index...
RIVA Pump Seal Kit: www.4-tecperformance.com/index...
RIVA Stage 1+Kit: www.4-tecperformance.com/index...
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[@john.french]

Nice video! Like all of your pointers and looking forward to the next one!

[@GreenHulkGarage]

Thanks!

[@gregwillis7767]

You're a really nice guy for allowing a trailer in your shop. After 38 years in this career, i pick and choose what I do and do not allow. Try 36 hours straight to "make a rental fleet" ready and you'll learn this. And tell them to "Thank you with money". Old Greg.

[@mencho8443]

nice job done greg

[@BlackDiamondM109R300]

Nice video bro. Great comparison 👍🏽

[@GreenHulkGarage]

Thanks

[@puttingwarheadsonforeheads9872]

How much do you charge an hour for labor if I want a riva racing kit installed on my ski

[@LifeWideOpen780]

You gotta post the speed as your riding

[@georgeanddaddecker7563]

Can you get a hold of some race sponsors for my 2006 GPR 1300 please?

[@gablaf114]

Hi there! Love you're videos by the way. I just got the Riva stage 1 plus kit + ribon delete kit + blow off valve installed on my GP1800r 2021. I'm hiting 82-83mph like Riva says. Beside changing the sound of the exhaust I'm wondering if the Riva free flow exhaust and there waterbox would give me more performance ? Tank you.

[@GreenHulkGarage]

You won’t notice a difference in performance, mostly just sound. I do love the way my rear exit exhaust sounds! The free flow drones a lot more than the rear exit and I tend to stay away from the free flow.

[@prosheller]

I plan on doing the stage 1+ on my 21 GP1800R SVHO. Do you need to remove the panels to install the bracket for the air intake kit or can you use the existing bolt? Also, for the stage 1+ i was going to stick with stock impeller, do you see any issues with not upgrading the impeller if you do all other stage 1+ upgrades?

[@GreenHulkGarage]

You do need to remove the panels, it’s not difficult. You can run the stock impeller but you will not have the best acceleration and top speed

[@ryanalvine9513]

Hey man love the videos!!! Question for you. I have a 2019 GP1800r that I am pulling the trigger on upgrading in the coming weeks. I want to to get the most performance out of it as possible under the following criteria. Level of importance to me 1) acceleration 2) handling 3) top speed Climate: Wisconsin Gas easily available to me: 91oct, ethanol free I care more about the acceleration than top speed, but obviously want to get as fast as possible at the same time. I do not want to do anything internal modifications at this time. What are the parts I should order to get the most out of the machine with these criteria in mind? Thanks in advance for your advice and keep up the good work with the content!!!

[@GreenHulkGarage]

The RIVA racing stage 2 kit along with the RIVA ride plate available at GreenHulk.net is going to be the most bang for your buck! Use coupon code “GreenHulk” at checkout to save 10%. The kit improves all the weak links on the GP while drastically increasing acceleration and top speed! It will be very reliable and an absolute blast to ride. The kit does come with valve retainers which would be classified as an internal modification but is not 100% necessary, you will just have to run an 8700 RPM limit tune.

[@GreenHulkGarage]

www.4-tecperformance.com/index.php?main_page=product_kit_info&cPath=355_202_444&products_id=7650 www.4-tecperformance.com/index.php?main_page=product_info&cPath=344_364_114&products_id=6686 www.4-tecperformance.com/index.php?main_page=product_info&cPath=350_94_292&products_id=6705

[@MrBassmaster28373]

I love the clean look of no decals

[@henrythompson5624]

I’m so happy you made this video I was just Contemplating on getting the ride plate

[@GreenHulkGarage]

Glad I could help! Save 10% on it in our store with coupon code "greenhulk" at checkout! www.4-tecperformance.com/index.php?main_page=product_info&cPath=350_94_292&products_id=6705

[@jasonmekush5280]

I've put 15 hours on this ride plate, I like it . Don't expect a big difference but it does help it bite in more and be more predictable in the turn.

[@henrythompson5624]

@@jasonmekush5280 thanks man I just ordered it this morning hopefully it Balance out the integrate for the speed lost

[@jasonmekush5280]

@@henrythompson5624 as far as speed lost goes : biggest killer will be a solas 13/20 i lost 600 rpm w that impeller, had a racer turn it way down to nearly 13/16 hitting 8600 rpm @ 84 mph full fuel tank.

[@henrythompson5624]

@@jasonmekush5280 nice thanks man

[@wahleed4915]

Should you not use launch control when the Riva ride plate is installed? According to Yamaha, launch control puts the bow down but the Riva ride plate puts the bow up.

[@GreenHulkGarage]

Launch control only trims the bow down when launching. The bow needs to be down from a holeshot so the ski doesn’t jump out of the water. Once the ski is on plane then it should be trimmed up

[@2SHARP4UIQ150]

Great Video. I like to do the 1+ to my GP18 SVHO. Is this something I can do myself?. I got tools, and I have car engine mechanics skills

[@jgaddis68]

Thank you! This is something you can easily do yourself., especially if you have some basic skills and tools. The GreenHulk Store has these kits on sale right now www.4-tecperformance.com/index.php?main_page=product_kit_info&cPath=355_202_446&products_id=7648

[@bodiejones4844]

I think so. With all the instruction out there online and your skills with auto repair you could do it with the right tools no problem! That impeller can be tough tho.

[@jasonmekush5280]

I knew it my riva same grate did slow my skii down, hitting 8600 rpm w a muck lower pitch solas prop well below 13/16 . i think w just me on it and my fuel level beeping low like his id hit 86 w my 8800 rpm tune thats on it now. ty for all ur great content

[@dproulx7380]

Hey do you have titanium retainers ??? I have the 13/18 impeller with gen 2 intake and ride plate and I’m planning on trying 8800 in freshwater

[@jasonmekush5280]

@@dproulx7380 no retainers. i wont open up that engine. it spins 8600 rpm w a custom pitch in thousandths of an inch prob around a 13 / 17.

[@dproulx7380]

@@jasonmekush5280 so my 13/18 may be safer than your 13/17

[@jasonmekush5280]

@@dproulx7380 safer meaning less rpm peak yes and less cavitation the higher the final pitch

[@alexnutcasio936]

You didn’t say whether he already had the Riva tune before or after the install?

[@GreenHulkGarage]

after the install

[@jasonmekush5280]

Blue now thats what im talking about, I finally finished my fine tune on it w prop hit 84 mph w 2 people 7/8 tank of gas 95 degree heat , 87 degree water trim nuetral [ 2021 gpr]

[@GreenHulkGarage]

Awesome results!

[@jasonmekush5280]

@@GreenHulkGarage thank you , I am an eager buyer if you guys get any new products for this thing : such as a rear seat cover that deletes stupid orange warning label. Not the rough riva 2 seats cover that is already out.

[@mikelazar7954]

Thinking about going the same route on my 23 but I’m debating if a aftermarket water box is worth it on a stage 1 tune?

[@GreenHulkGarage]

It won’t add any performance but it sounds amazing if coupled with the Riva rear exhaust kit.

[@jcskyr33]

Where is the jet of water out the back is that a delete you can do ?

[@GreenHulkGarage]

Yes it has been deleted

[@jonathontsoukalas]

does a stage 1 plus gp1800r have a faster acceleration than a stock rxtx like 0-20 or 0-40

[@GreenHulkGarage]

Absolutely! It’s not even close!

[@josemarquez5847]

Hey how do u take the front plastics off

[@GreenHulkGarage]

Each panel has a total of 7 bolts. First you’ll have to take the mirrors off (they each have 2 bolts and will lift right out) then you’ll have 3 bolts on each panel directly under the front hatch, 2 bolts under the glove box lid, one bolt on the outside near the seat, and one bolt behind the bulkhead. Once all the bolts are out then you can pull forward on the panel and it’ll come right off

[@MegHumper]

have you tested performance for any 1.8 svho with the stage 2 low octane map??? im extremely curious about it.

[@GreenHulkGarage]

I have not but I can do it and make a video about it

[@MegHumper]

@@GreenHulkGarage that would be amazing!!!!

[@MegHumper]

@@GreenHulkGarage update? i know you're busy.

[@brettoltman2402]

Badass !! Love how Yamaha essentially copied the race parts but still kept them reliable. I don’t like sucking up sticks. So I that gaping hole worries me. Would a ribbon delete and fizzle intercooler take this close to 90 mph ? At 8500 rpm ?

[@GreenHulkGarage]

Probably not 90 mph, but WELL into the 80s

[@jasonmekush5280]

@@GreenHulkGarage 85 is probly the wall without adding a new wheel . Mine is consist 84 w a major pitch on prop, full stage 1 ++. I have everything short of intercooler and exhaust, like mine quiet and a sleeper.

[@GreenHulkGarage]

The intercooler makes a huge difference. The factory intercooler isn't adequate for performance. There's a 2-2.5 MPH gain with just the intercooler alone.

[@jasonmekush5280]

@@GreenHulkGarage wow , I think I may stop right here though, its my 14 yr old daughter's skii. I know the reliability will eventually go down if i keep adding too many parts. I did however do the drill bit riva cooling upgrade.Intercooler was one of the lines drilled out.

[@GreenHulkGarage]

Yes that is plenty of power for a 14 year old LOL! The Stage 2 setup on the SVHO is actually very reliable though! All it adds to Stage 1+ is a more efficient intercooler, better engine cooling, and titanium valve retainers to prevent valve float.

[@jasonski77horne50]

I just did a ribbon delete on my 2015 Fx Cruiser Ho as well as the engine breather and a Riva air filter for the filter box and after putting it all back together the ski will crank but will not stay on cuts right off, I have no idea why and can't figure it out.

[@GreenHulkGarage]

You may have left a sensor unplugged when you reinstalled the intake manifold

[@jasonski77horne50]

@@GreenHulkGarage I installed the intake manifold wrong. I corrected it and it works beautifully. Got 3mph on my 2015 fx cruiser ho with an engine breather, upgraded air filter and the ribbon delete.

[@davidpate76]

How about a video on a 21+ GP 1800 HO non supercharged

[@GreenHulkGarage]

I don’t own one of those

[@davidpate76]

I understand.Your videos are awesome btw,keep up the good work!

[@GreenHulkGarage]

@@davidpate76 thank you so much 🙏

[@johncunningham1183]

What would the same setup with a 13/20 impeller do with rpms and speed , 8400 rpm + is just too much for long term reliable valvetrain , am I wrong ?

[@GreenHulkGarage]

A 13/20 would have lower RPMs and speed. The valvetrain is very capable of handling 8400+ RPMs over the long term. It is safe for up to about 8700 RPMs.

[@dproulx7380]

What 8500 tune from riva do you recommend

[@bodiejones4844]

@@GreenHulkGarage is this true? Can this engine really safely run 8700 rpm’s out of the box?? I’m stage one but have been concerned about doing more because I thought I was pushing it already.

[@GreenHulkGarage]

@@bodiejones4844 absolutely! Anything over 8700 you need to install the Riva retainers.

[@bodiejones4844]

@@GreenHulkGarage but the valves will hold up under that! That’s good to know! Thx!

[@dproulx7380]

I have 2019 gp with 13/18 and the gen 2 plate and intake could I safely run 8800 tune I don’t have titanium retainers

[@GreenHulkGarage]

I run the 8800 RPM tune with no titanium retainers. The stock valvetrain is good for 8700 RPMs so I pitched the impeller for the engine to turn around 8600 RPMs. In rough conditions where the pump comes unhooked I just left off the throttle to be safe.

[@dproulx7380]

@@GreenHulkGarage I’m only getting 79 mph with browArd tune looking to get map tuner

[@GreenHulkGarage]

@@dproulx7380 MaptunerX is the best way to go. We sell the tuning bundle package discounted in the GreenHulk Store

[@dproulx7380]

@@GreenHulkGarage I’ll give it a look how long will it take to get it riva all jammed up

[@GreenHulkGarage]

@@dproulx7380 we can ship it right away. Here’s the link to what you need www.4-tecperformance.com/index.php?main_page=product_info&cPath=316&products_id=4250

[@charlestaylor3434]

Why wouldn't you show the GPS results immediately after each run for both with the Riva intake grate and without? You know that's all anybody wants to see.

[@GreenHulkGarage]

Thanks for the suggestion. I will be sure to include that in the next video.

[@Texasbass112]

What tachometer are you using

[@GreenHulkGarage]

www.4-tecperformance.com/index.php?main_page=product_info&cPath=232&products_id=7038

[@brianchinoski6413]

How many wraps on coil can you post pic

[@Tofik0VW]

@@GreenHulkGarage also interested in a photo of the wrap on the coil

[@k.tanaka1866]

i'd keep the stock intake grate. I'd rather have that grate to stop debris from hitting the jet when hauling ass in the ocean. You cannot image how much seaweed gets caught and is prevented from clogging up the impeller when riding in the ocean.

[@GreenHulkGarage]

Ken, aftermarket grates do not let anymore debris in than the factory grate. This is a myth born on the internet from novices that don’t know any better.

[@k.tanaka1866]

The grates have a purpose and that is to filter large objects. The aftermarket grate doesn't really have any grates. It is simply a large hole. If your PWC goes over some large sticks or any kind of debris that is small enough to the big hole it will go straight into the impeller and damage it. The factory grate will offer a better chance of protecting debris from hitting the impeller because of the slits itself. This is not a myth, it's logic.

[@GreenHulkGarage]

@@k.tanaka1866 you really need to look at the aftermarket grates and compare them side by side. Need me to email you pictures? They absolutely do have grates! Two large bars running the length of the grate. Just like the stock grate. The purpose of the grate is to improve pump efficiency and direct water to the top of the pump tunnel and to improve handling. The grate will keep large objects, such as branches and sticks out of the pump as a side effect. The aftermarket grates do a better job at increasing pump efficiency and handling than the stock grate. They do not allow any more small debris into the pump than the stock grate does. Again, the grate is not there to “filter” debris from getting in your pump. It’s not a screen. It has large openings for a reason.

[@k.tanaka1866]

I never said that the grate's primary purpose is to filter debris. It is obvious that the primary purpose is to funnel water. No need to email me anything. I will send you a link so you and others can see that physical differences. watercraftjournal.com/the-technology-behind-top-loader-intake-grates/ The stock has 3 slits and those slits protect (to a certain extent) large debris from entering. I am not saying the manufacturer has the best design. But the stock grate does work and really helps in stopping from large debris from entering.

[@GreenHulkGarage]

@@k.tanaka1866 Ken, the aftermarket grates do not allow more debris to enter the pump than the stock grate does. If it helps you feel better by running the stock grate it’s your choice, but to say don’t use an aftermarket grate because you will suck up more debris is absurd. By not going with an aftermarket grate you are leaving performance on the table. Not to mention the stock grate is cast aluminum and weak and dangerous at speeds over 80 mph. The Riva grate is stainless steel and simply will not break, and has been proven at speeds of 130+ mph 👍

[@watercraftjournal]

For future reference it’s a “skeg” not a “center chine.” Great work!

[@henrythompson5624]

I like the video can we get a redo please where you should the speeds or dash

[@R1Kyle]

Oh like who cares.

[@henrythompson5624]

@@R1Kyle I do that's why I asked

[@funblog4185]

ok relax, customer is acting like he got a stage 3 done with the biggest wheel u can bolt on lol