Do you have more pics!!! Looks like you have some upgrades on the boat. It looks beautiful. Where your mph numbers gps numbers? How was it without hydraulic steering? Do you know where I can find interior items, ie, seat covers, carpet or any other items. Any tech data would be great. Hull weight, prop testing, really anything you know. I love this boat and never see any around here. I've never seen one really anywhere I've been. One of my best friends owned it since 94 and I always admired it! I used to live in Wisco, so it was always used in fresh water. The boat construction is really solid. I don't beat on it, but have run it hard offshore a few times. No cowl shake at all! I've been out with buddies around here in there big "offshore" boats that didn't seem as solid as the Senza.

PS: I'm going to name her "Rare Breed"

Heres something.....

2 more pages... Pretty good write up, Powerboat Magazine Feb. 1992.

Larson Senza Spectre was built from 1990-1994. RARE BREED for sure.

Thanks for the article. I've been looking for a test article forever! Rare Breed it is. Thanks again for all your help.

I bought my Senza in 1999 with only 170 hours on it, sold it in 2005 with 500+ hours. Real solid boat handles awesome great in rough water the room for this size boat also is good more cockpit space than most 38 footers. Never had any problems with it... never....454 Mag really strong. and everthing is original except new carpet and a few upgrades, drive shower, exaust, trim tabs, radio, thats about it. The 72mph is GPS. Does not have hydraulic steering. This is an awesome boat to own!!!

Any questions feel free to ask.

1990 Larson Senza Spectre

Few more pics...

I dont think you got 72gps with a 1990 454 mag Im running a 2002 volvo version of the HP500 fuel injected with labbed prop and can just touch the 72 mark
even the boat test in the power boat magazine said 62-65 with a 454 MAG , A merc guy put a 575 in one of these and got 82

Ive tried 3 blades and 4 blades and a labbed 4 blade get you the most bang for the buck, 3 blades would tend to blow out on me too much
and I saw only about 1mph difference, 4 blade was much better on poker runs with all the wash in front of you

I WOULD LOVE TO GET A COPY OF THOSE ARTICALS you have there
pm me

Im sure I did hit 72mph, always ran about 65-68 top but did hit that 72mph mabey the wind and or current helped.

I know this thread is old but I cant find much ou there..I own a spectre and I can hardly get 52mph out of it..Has a 4 blade 23P stainless prop. Brand new 515hp 454 carb mercruiser engine. What gives Its 4400rpms at WOT. Help!!