97 21XD prop help

[Leonard Bullet21XD]

I have 97 21XD, 2018 250 Pro XS 2 Stroke, 12” Rapid Jack plate, currently running a 27 Tempest 1.5 below pad with all holes plugged, it blows and snorts like a chopper coming out of the hole. I don’t want to spend a fortune buying and trying props, I fish and carry a lot of tackle. I ran the same prop on my old 200 EFI with no holes plugged and no blowing out issues, any suggestions would be appreciated. Anyone in the Lake Hartwell area with a prop to try would be greatly appreciated. I left out TM2 with 1.75 ratio.

[barbarian]

28 Bravo xs at 3/4” below pad will most likely be impossible to beat as best all around fishing prop. My guess is 2 plugs in, 6 open.

[Leonard Bullet21XD]

Thanks,Barnarian, I do not understand why this prop did not blow out on my 200EFI. I have ever buried the motor and it still blows.

[BULLET FAN]

27 or maybe 28 Pro Max. Bravo may be a little better with hole shot not sure but what I have seen and read the Pro Max is better mdi & top and maybe handling.

[barbarian]

Thanks,Barnarian, I do not understand why this prop did not blow out on my 200EFI. I have ever buried the motor and it still blows.

I am going to wing this, but my guess is the 200 didn't have enough umph to spin it high enough on the hole shot compared to your current motor. Do you have PVS holes on that prop? In the end, a 4 blade will handle so much better now that you have enough ponies to matter. And you can probably sell that tempest and get in a good 4 blade for about $150 difference.

[21XDC]

The new gearcases Gen2/Wingmaster seem to vent harder/easier causing issues in blowout. Not sure what LU you have, But just my experience. The bigger the motor/torque/HP, The more blade area is needed to stay hooked up. 14 5/8 diameter in a 3 blade is not much for such motors, motor height and loads.

[Leonard Bullet21XD]

I got turned off of 4 Blades with the Trophy Plus and started run the Tempest with my old 200. The fuel consumption on the Trophy was awful compared to the Tempests. Do I need the Brovo with 8 holes or will the one with 4 work?

[barbarian]

The trophy plus can do that and should not be THE prop that you base your 4 blade opinion on. All Bravo ‘xs’ will have 8 PVS holes.

[Leonard Bullet21XD]

Thanks for everyone’s advice, I am trying to find someone in my area so that I can try before I buy.

[Leonard Bullet21XD]

If anyone knows of one pm me please.

[Leebob]

Thanks,Barnarian, I do not understand why this prop did not blow out on my 200EFI. I have ever buried the motor and it still blows.

100% of your hole shot issue is the gen2 gear case. After spending tons of money on Bravos, TXP, Promax...…..I reluctantly bolted on a foil and solved my issues. Great hole shot now with my old 29 Bravo XS with 1" holes.

[sowenssw]

I had a similar set up, had the same issue, I added a foil and it improved my hole shot 110% (hated to do it, but it was effective). I also went to a 15-1/4" diameter 27 Hydramotive, with 8 pvs holes and had a 1" flare added. Still wasn't great but the best all-around I could come up with.

[Leonard Bullet21XD]

Any suggestions as to what brand foil would be recommended?

[WVBullet]

Any suggestions as to what brand foil would be recommended?

Pm Chris Bailey on here. Member “cbailey”

[20DC BULLET]

[QUOTE=sowenssw;11102593]I had a similar set up, had the same issue, I added a foil and it improved my hole shot 110% (hated to do it, but it was effective). I also went to a 15

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[Leonard Bullet21XD]

I want to thank everyone for their advise, I just borrows a 28 Brovo 1XS that has not been worked and will run it this weekend. I will post my results. Hope it works because I really do not want to install a foil.

[Leonard Bullet21XD]

Brovo results- ran the Brovo 1 XS today, had to plug 6 holes in the prop to get the blow out under control, left jack plate along at 1 1/2 below the pad, it starts off sluggish and then revs to 4K RPM, ran out of real estate at 75 GPS MPH and still climbing- 6 holes plugged seems a little excessive? Any ideas?

[barbarian]

6 sounds like more than most, but it might be the gen 2 TM. But it is irrelevant because it sounds like it did better at the top and rev to 4k on hole shot is about right. The sluggishness sounds like the gen 2 from what I hear. IMO, I'd run it and not look back for now. The only thing you don't know yet is how many max RPM's it will turn, but my guess is that the 28 should be very close to on point.

[Leebob]

Without the foil, its either gonna break loose or be a dog when you plug it. An original Bravo with the flare (Not XS) will have a good hole shot without a foil, but some have had top end handling issues with flared props.