Who have a Stage 2 tune on RXP X 2022

[Yann]

Hi
i want know yours results with stage 2 tune on RXP X 2022 only with new LCD colors cluster : RPM and Max Speed
Because on my RXP 2022 (stage 2 tune) hit at 8400 rpm 77mph and my old 2021 RXP hit 81 mph and my old GTX 300 2020 hit 84 mph with the same tune and performance pieces but ST3 hulls are faster than T3R.
With my stock tune i hit 76/77 mph @8100 rpm ( international model of course) but no more speed gain @ 8400 rpm with stage 2 it's very strange.

My Config :
Stage 2 Tune 8400 speed limits off
Riva rear air filter
Flame arrestor delete
Riva Gen4 intercooler
Riva Catch Can
Solas SX4CD13/15 better acceleration than stock impeller but same speed.

Thanks

[Chefrey]

May be on the rev limiter with 13/15 prop. A lot of people are having better luck with the 13/18 solas.

[Deanoo]

Try raise the limiter and see how you go

[Yann]

May be on the rev limiter with 13/15 prop. A lot of people are having better luck with the 13/18 solas.

i repiched my 13/15 to 13/18 8300 rpm and same speed
Also i tried with stock impeller and dont pass 77 mph also my RXP X 2021 hit 81 mph with the same config , 2021 have the same propulsion, same hull, just the drive shaft is shorter on 2022 and cluster are different

[Yann]

Try raise the limiter and see how you go

Riva announced with their stage 2 tune 81 mph @8400 rpm, with stock retainers i prefer to stay at this limit.

Unfortunately my tune is not a Riva but i read my ECU value with KTag and VCM Editor by HP Tuner and i could see that my tune is very safe and basic : just more advanced spark timing after 8000 rpm , speed limits off, cut of RPM 8400
But VS my stock tune same enrichment fuel, and same torque limits, so i think rewrite my tune with Riva table value and see if the speed increase

[Deanoo]

Who have a Stage 2 tune on RXP X 2022

Riva announced with their stage 2 tune 81 mph @8400 rpm, with stock retainers i prefer to stay at this limit.

Unfortunately my tune is not a Riva but i read my ECU value with KTag and VCM Editor by HP Tuner and i could see that my tune is very safe and basic : just more advanced spark timing after 8000 rpm , speed limits off, cut of RPM 8400
But VS my stock tune same enrichment fuel, and same torque limits, so i think rewrite my tune with Riva table value and see if the speed increase

But just raise the limiter to see if it is the limiter holding you back, if it ends up being the limiter put a set of retainers in

[Yann]

But just raise the limiter to see if it is the limiter holding you back, if it ends up being the limiter put a set of retainers in

i raise the rpm limiter at 8500 rpm : 79.5 mph 128 km/h , is my stock impeller 14/19 repitched, I'm thinking of going back to the stock pitch 14/21 for hit 81 mph

[GreenHulk Jr]

Here is a video of what I got on what would be a riva stage 2. Only difference is the impeller and wear ring.

https://youtu.be/YSXd0LOp1iY

[guybb3]

Can you give us a hint on the new impeller you are referring to?

[GreenHulk Jr]

Can you give us a hint on the new impeller you are referring to?

This is an older video and the new impeller has already been released. It is a 13/15 four blade impeller. You can find results to that here: http://greenhulk.net/showthre...295061&page=19



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[Yann]

i ve both impeller, stock and Solas 13/15 4 blades.
Better speed with stock impeller 79.5 mph @8500 rpm (rev limiter 8500rpm) : stock pitch mesured 14/21
Solas SX4 CD13/15 repitched to 13/17 78 mph @8600 rpm (rev limiter 8500 rpm)
And Solas SX4 CD 13/15 out of the box hit 76/77 [email protected] 8600 rpm : Riva Stage 2 tune anounced 81 mph @ 8400 rpm : WTF i ve 4 mph less for 200 rpm more
In addition to stage 2, i've Riva Gen 4 intercooler and flame arrestor removed and drill 5" vent air just behind the rear filter
.

[Boost]

i ve both impeller, stock and Solas 13/15 4 blades.
Better speed with stock impeller 79.5 mph @8500 rpm (rev limiter 8500rpm) : stock pitch mesured 14/21
Solas SX4 CD13/15 repitched to 13/17 78 mph @8600 rpm (rev limiter 8500 rpm)
And Solas SX4 CD 13/15 out of the box hit 76/77 mp[email protected] 8600 rpm : Riva Stage 2 tune anounced 81 mph @ 8400 rpm : WTF i ve 4 mph less for 200 rpm more
In addition to stage 2, i've Riva Gen 4 intercooler and flame arrestor removed and drill 5" vent air just behind the rear filter
.

I have a 2022 rxt300 X and have same issue as you stage 2 tune 13/18 prop rear air and I can’t pass 77mph on the gauge. Something is wrong with these skis my old17 sane mods 80mph all day long.

[Yann]

I have a 2022 rxt300 X and have same issue as you stage 2 tune 13/18 prop rear air and I can’t pass 77mph on the gauge. Something is wrong with these skis my old17 sane mods 80mph all day long.

i'm agree with you , i think the 2022 models are slowers than previous models, with the same tune i hit 83 mph on my GTX LTD 2020, in my country (France) actually it's winter, so more fresh air than summer, on my infolog the IAT (air intake temperature) is 21?? celsius (70?? F)
Is it due to the new lcd color cluster with GPS module ?
Video youtube (Riva/ JP Racing etc ...) are alway RXP 2021 who hit 83 mph @8300 , mine @8500/8600 hit at the max 79.5 mph, with low fuel and trim at the max, impeller and wear ring like new.

Another strange thing, i realise my test on a river with 4 mph current, against the current i ve more torque and RPM than in the same current way, i 've the impression that the speed/torque was restricted on the same current way.

[Impulses]

Reading what you post, what could I expect from a Stage 2 on a RXT 300 2022 without any other options?

[Water4fire]

Well I will say mine will not run the 80+ in the Texas heat. So temp and fuel capacity make a big difference with speed. Mine also loved the extra air venting.