donzi 27zx

[ZXXX Donzi]

Originally Posted by onelightmind

Sweet boat man... I too just got into a 27zx but it has a 502. I wish to upgrade as 57mph top speed is just not satisfying enough to me. I blew up an outdrive this weekend by (luckily) hitting a floating log...insurance WILL cover that...but towing your Donzi with your buddies 18' larson deck boat sux. I've been eyeballing an XR drive so I can do a rebuild on the engine right. If everything works out maybe the drive part will be **free. Anyway what drive do you have on yours?

I would recommend an XR. It takes a bunch of torque to get these boats to fly.

[onelightmind]

Thanks ZXXX thats what I was leaning toward... we will see what the insurance numbers look like and if the BIII drive has a scrap value. Props look like they could be repaired easily...

I was told the XR would bolt up easily to existing BIII stuff is this true??

[ZXXX Donzi]

Originally Posted by onelightmind

Thanks ZXXX thats what I was leaning toward... we will see what the insurance numbers look like and if the BIII drive has a scrap value. Props look like they could be repaired easily...

I was told the XR would bolt up easily to existing BIII stuff is this true??

Pretty much. You will need probably a $150 part. I don't remember exactly what it was.

[donzi-joey]

From what I was told it will bolt up, you just have to change out the gimble bearing since the XR has a larger input shaft.

[onelightmind]

That's what I have heard. Someone also mentioned I should upgrade my B3 upper to XR and have em beef up the lower??? confised a bit by this suggestion... still waiting on the damn adjuster.

[ZXXX Donzi]

Originally Posted by onelightmind

That's what I have heard. Someone also mentioned I should upgrade my B3 upper to XR and have em beef up the lower??? confised a bit by this suggestion... still waiting on the damn adjuster.

Lose the BIII lower. It is a nice piece for cruisers but is not as efficient as speeds go up.

[onelightmind]

Enough said... If I can do it I will loose the B3

[Brock Donzi]

new to this site.running the old 1998 twin step 27 zx donzi race boat.(damn donzi).thing flys for a F1.my problem is when I trim to get my top speed.It dont even get a small tail at all and it ununhooks and spins out.Is this a stepped hull thing or what.every one else running Bravo ones can spit pretty high.hull to shaft is 7",running a sport master,swinging a26"four blade bravo. any help would be great.

[ZXXX Donzi]

Originally Posted by Brock Donzi

new to this site.running the old 1998 twin step 27 zx donzi race boat.(damn donzi).thing flys for a F1.my problem is when I trim to get my top speed.It dont even get a small tail at all and it ununhooks and spins out.Is this a stepped hull thing or what.every one else running Bravo ones can spit pretty high.hull to shaft is 7",running a sport master,swinging a26"four blade bravo. any help would be great.

The word I heard is that your race boat was pretty light in the back and that was a contributing factor. Bryan Rose has a light (er) 27ZX. It probably weighs over 500 lbs more in the back. It tracks pretty well to 90 or so. His bottom of pad to shaft is around 5"

Prop technology has improved a good bit since they built your hull. You may be able to play around with your X and props to get it settled out.