Nizpro dyno curves

**David** · 09-19-2022, 09:08 AM

It's very cool to see the stock and aftermarket dyno curves

https://www.nizpromarine.com

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Name: Nizpro SHO V6 dyno curve.jpg
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**John S** · 09-19-2022, 10:21 AM

Thanks for the share. Looks pretty impressive. Wonder how it compares to the Hydrotech modded Yammies.

**hellbents-10** · 09-19-2022, 12:29 PM

Anyone put one on a digital scale? Low water pick up to run them high?

**David** · 09-21-2022, 08:38 AM

Hydrotech also sells tunes and other parts like solid mounts, nose cones, and 1.62 gears. it would be a lot of fun to see someone do all the tricks to a SHO and compare it on the same boat with a 300R or 300XS

Hydro Tec Marine Performance, INC

Phase III kit VMAX SHO 4.2L 200/225/250 and 4.2L F225/F250 (ECU Flash / Blowout Ring / Solid Mounts / Nosecone / heavy Duty Propshaft with billet bearing carrier) ECU AND LOWER UNIT MUST BE SENT IN ADVANCE. CALL TO ORDER.

**hellbents-10** · 09-21-2022, 11:56 AM

If I had a pile of cash I would in a heart beat!!!

**allisonracer** · 09-22-2022, 09:12 PM

The flashed sho will out perform a 300xs in my opinion. I currently have both at my house and the xs is for sale. Lol. I ran 90mph in 800ft with the nizpro flash. My boat weighed 1804lbs with me in it and I was running a 26pitch prop. It hit the 7k limiter around 700ft. The flashed Yamahas are strong motors

**allisonracer** · 09-22-2022, 09:20 PM

Originally Posted by hellbents-10

Anyone put one on a digital scale? Low water pick up to run them high?

running a coned case on mine

**hellbents-10** · 09-23-2022, 06:46 AM

So when searching for these a 20" 200-225-250 will all yield the same result with a tune and mods? Hmmm if they scale about 500ish I might have to start looking harder.

**allisonracer** · 09-23-2022, 12:30 PM

Yes. 200-250 is same motor. The advertised weight is 505lbs same as a 300xs but true weight with oil is around 530-540lbs

**Greg G** · 09-23-2022, 08:29 PM

Originally Posted by hellbents-10

So when searching for these a 20" 200-225-250 will all yield the same result with a tune and mods? Hmmm if they scale about 500ish I might have to start looking harder.

Nizpro also has machined some specific bushings that were a weak point on HPDI and SHO motors if I recall