14/21 prop experience...?

[VdeKock]

Im looking for a impeller upgrade for my gp1300 2005 with 87mm exit nozzle.
found alot info with search on the 14/20 but not for this 14/21...

looking to by this YF-CD 14/21 prop or another YG-DF 15/22

http://www.4-tecperformance.com/index.php?main_page=product_info&cPath=16_22_23&products_id=94

some people have this...? Any Good..?

I am only looking for top speed.
Running 130psi and 7100rpm

ow and the sealevel you are talking about....!
We are 0,3M (1Feet) Down to Sea level

[LT1GMC]

If you are only turning 7100 I wouldn't think you would gain anything by going to a 14/21 or 14/22. They would load you down too much if you do not change anything else.

[jetdave56]

If you are only turning 7100 I wouldn't think you would gain anything by going to a 14/21 or 14/22. They would load you down too much if you do not change anything else.

Yep...rpms too low...7200-7300 would be about right..more compression(150psi) and porting (cylinder intake/exhaust) that will get you there and be the best investment you'll make for this GPR in my opinion..also a R&D rideplate cut for speed will put you somewhere in the mid 70mph now with that 14/21 spinning...

[OzarkYamMonster]

Jetdave56 tell LT1GMC about what you did to your GP 1300 before you sold it (gave it away) HaHa .... if I remember, you were getting 75 MPH /GPS

[jim mcgreehan]

...the other concern/question would be the difference between the Concord 14/21 and the Dynafly 14/20 (assuming that you're considering that in the mix). The Concord might be for the smaller pump...05' was first year for the larger diameter pump, but am not sure....?

[VdeKock]

Mmm oke...to bad.

So the dynafly 14/20 is my best option for top speed.
Need to go make serious tuning now then.
Hoping for good wheater soon and test Jims plate, its 5*C (40*F) at the moment

[jetdave56]

He'll need the Dynafly for that ski (155mm pump) 05-08....

Yep practically gave her away...As technology changes it effects everything around us....2 strokes just don't have the power and pull of a forced induction 4 stroke....Most members on GH started on 2 strokes at one time..need to spend alot to bring a 2 stroke up to date with the latest SC/turbo advancement to be on a performance scale...then,again there cheaper to build and repair than the 4 strokes..gas/oil expense on the 2 stroke just has to be turning people away if you expect to ride at least 2 hrs in a day...IMO

[lazsrxp]

I have friend that has a Dynafly 14/21
Forsale lmk if ur interested

[VdeKock]

I have friend that has a Dynafly 14/21
Forsale lmk if ur interested

Mmmm interesting....
Must check RPM's with new tiny tach, cant do before april (to cold)
What price inc. Shipping to Netherlands ..?

[mikegp]

I have friend that has a Dynafly 14/21
Forsale lmk if ur interested

Mmmm interesting....
Must check RPM's with new tiny tach, cant do before april (to cold)
What price inc. Shipping to Netherlands ..?

I'm going to give you a idea, i'm running a 14/21 dynafly and its getting me 75.6 +/- with a half a tank and a 158 lb rider.

[VdeKock]

I have friend that has a Dynafly 14/21
Forsale lmk if ur interested

Mmmm interesting....
Must check RPM's with new tiny tach, cant do before april (to cold)
What price inc. Shipping to Netherlands ..?

I'm going to give you a idea, i'm running a 14/21 dynafly and its getting me 75.6 +/- with a half a tank and a 158 lb rider.

cool.... Not with the same specs i asume...

[mikegp]

I have friend that has a Dynafly 14/21
Forsale lmk if ur interested

Mmmm interesting....
Must check RPM's with new tiny tach, cant do before april (to cold)
What price inc. Shipping to Netherlands ..?

I'm going to give you a idea, i'm running a 14/21 dynafly and its getting me 75.6 +/- with a half a tank and a 158 lb rider.

cool.... Not with the same specs i asume...

hahaha sorry you right not the same specs.
i have increase comp,vf3 reeds,4* key,efi cont,velocity stacks,true 14/21 dynafly and of course plate,grate ,tabs and the magic touch of WFO.lol
oh and a fzr turn nozzle

[mikegp]

and i love it i just cant stay away from the 2 stroke rumble and the smell.

[VdeKock]

And what is the differance between your vf3 reeds and my Riva reeds?

For the rest...i dont see much other mods than me!
Other than the Velocity stacks? Dont now what that is

Ow and a touch of WFO i am missing

[mikegp]

And what is the differance between your vf3 reeds and my Riva reeds?

For the rest...i dont see much other mods than me!
Other than the Velocity stacks? Dont now what that is

Ow and a touch of WFO i am missing

the vf3 reeds are superior,will increase the flow of air.the velocity stacks will help direct the flow of air through the throttle body.or increase speed of the air going through the bodys.
on the WFO touch .he help setting the hull ,grate,plate,tabs, etc.