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Looks good

155mm Maxxx pump, if you cut and reweld mounting brackets.

I need more height for my lack of talent

My ski with a DASA 1200 and Maxx 155 pump and 8/16 impeller gets more height with 86mm nozzle than a 90mm nozzle, and still revs out easily. You can hear it slipping a lot with the 90mm. The impeller is good, with 0.3mm clearance. Is there a way to predict what pitch to run with 90mm based on...

What do you usually recommend?

Found I had too much back pressure in my waterbox, ski came alive. Also changed compression and running Sunoco oxygenated fuel. Impeller is slipping now, not getting the pop/thrust I want

The hull in profile pic, heavily modified Speedmagic X-2 hull Kyle came back saying PFP, RRP and TNT are all close

With a few exhausts available now, which works best with a DASA 1200?

Speak to the pro racers like Motz and they won't touch them

Any ignition but Advent

Fixsteer - Flatwater

Email from Kyle at DASA: We can run up to 185 psi valves open on US 91 octane fuel. Kyle DASA Racing 9251 Orco Parkway Unit A Riverside CA 92509 951-681-1131 Fax: 951-681-1224 www.dasaracing.com

He should be fine on the 48 domes, I run them with 95Ron(91oct-US) on a 1200. He also says seizure which is more likely jetting

It ran better but then the battery conked in, luckily whilst still on the trailer

Testing again tomorrow Found possible water leak on head. Spaced impeller 2mm. Re-checked pitch and it is 8/16. Adjusted back-pressure on exhaust. Sounds a lot snappier on the trailer

DASA recommended 7/15 or 7/16 due to altitude

Mine is a wetpipe, basically a ss version of a RRP

Speedmagic X-2 hull that has been shortened. The pump intake has been opened to 160mm wide. MSD TL, NOVI 48mm carbs Our 98oct racing fuel is equal US 93oct At 5000ft with 46cc domes The pipe is a custom SS pipe, I think I reduced the back-pressure too much while trying to figure out jetting...

It came with the pump, I would say medium

I am running DASA 1200 with a 8/16 in a 155 Maxxx pump and 90mm nozzle. Where the trailing edge of the blade meets the hub there is about 1mm gap to the stator vanes. Ski has thrust from idle, no slip at all. Engine not getting a chance to rev up before impeller bites