Seadoo Lucky 13 cone users gurus

[SLASHER]

Ok , I need some advise ..

I am about to install a lucky 13 cone to my turbo RXTX S3 , is there a formula to how many rpm each spacer drops ..

need to drop 200-300 rpm , my prop already pitched and running stock 87 nozzle ..

dont have red spacer ..

[Turbo Retro]

i have a red spacer.. depends on your nozzle ring etc with how the revs drop... have u installed it?? i would put the red spacer in first!!!

[SLASHER]

Retro I work 5 days not part time retirement like u ...

Ill grab the red ..

[Titan_Joe]

I have a 2014 with 87mm nozzle. In my experience when adding spacers the rpms didn't drop much but the speed did

[SLASHER]

Turbo will be different ..

[Scott]

Turbo will be different ..

I run no spacers using a 15/22r, riva pump and riva nozzle, revving to 9150

[greenbullet]

Ok guys. Now try running the red and blue spacer .... Rpm will drop huge but then see how the ski is in the chop and mid range pull. Pitch your prop to get revs back and watch the speed climb. I'm seeing huge fuel economy difference with using the blue and red spacers together. I'm debating on trying them all and pitching the prop accordingly.
Im running an 86-87 bored Venturi and my steering nozzle cleaned up a bit as well. The more efficient that pump runs the better it stays loaded in the chop

little tip. Using this cone and spinning upwards of 9 k. A 15/19 ish or so bent blade is a good spot to start when using at least 2 spacers. Every ski is different so just saying. I've done a lot of different testing over the past week with this and the cone has amazed me
you can get away with using a stock 83 mm Venturi on a lower 70 mph ski and see huge gains but that cone on a 80+ ski (83mm) Venturi is risking a stuff so the 86-87 mm is needed and adjust from there

[greenbullet]

Ok , I need some advise ..

I am about to install a lucky 13 cone to my turbo RXTX S3 , is there a formula to how many rpm each spacer drops ..

need to drop 200-300 rpm , my prop already pitched and running stock 87 nozzle ..

dont have red spacer ..

use blue and yellow spacer with 87 Venturi that's good for About 350 drop or get a red. It will drop about 200

[SLASHER]

Ok thanks , I just needed a base line to start with ..

I'll grab Retro s Red spacer and hope for a 200 rpm drop which will be perfect .

Thanks for the help guys ...

[Snoman]

but that cone on a 80+ ski (83mm) Venturi is risking a stuff so the 86-87 mm is needed and adjust from there

Ive got an 85 mm nozzle ring for mine,you think i should go 86 instead???Im only planning on turning 8600 though....Whats your thoughts brother??