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Black Baja 03-16-2014 11:06 PM


Originally Posted by mike tkach (Post 4090895)
maybe it had a 400 hp shot of nitrous.

No but it might get a 50 shot to get there.

Craney 03-17-2014 04:21 AM

If you have 1000hp in a 24 Baja you are going to have your hands full, be careful.

Black Baja 03-17-2014 06:09 AM


Originally Posted by Craney (Post 4090954)
If you have 1000hp in a 24 Baja you are going to have your hands full, be careful.

I had 900 in the Baja. This is going in a 27' Donzi.

ThisIsLivin 03-17-2014 07:28 AM

I called K&N when I was looking to upgrade my flame arrestor as the Hardin I was using a sharp edge at the air horn. Based on their info the 9x3 would be so restrictive for me that it would pull enough vacuum to close my power valves. I went with a velocity stack style housing with the largest 14" K&N element. AT 5600 rpm I am still showing 0 vacuum so no restrictions for me. Most of the flame arrestors I have seen either are way to small or have serious flow issues due to right angles at the air horn.

Budman II 03-17-2014 08:09 AM

So, I'll take this a step further and ask if anyone has seen any serious gains by removing the choke butterfly and milling off the choke housing on a Holley 800. Not much need for the choke butterfly in most marine applications - most of the time all you have to do is bump the throttle a few times to squirt some fuel in there and then just keep the idle speed up until the engine warms up a little.

endeavour32 03-17-2014 09:10 AM

You were serious about a 1000 hp N/A engine? What size engine are you building to get that kind of power?

Black Baja 03-17-2014 11:08 AM


Originally Posted by endeavour32 (Post 4091038)
You were serious about a 1000 hp N/A engine? What size engine are you building to get that kind of power?

632 if I can get 1.6hp per cu. in its over 1000. Problem is I'm building it under the wifedar. So I can't really spend the money to squeeze everything out of it. It will make 950 no problem the last 50+ will cost another 3-4 grand. Either way it will be to much for the boat. In good water the boat has been mid 90's with 850 in perfect water.

Black Baja 03-17-2014 11:51 AM


Originally Posted by ThisIsLivin (Post 4090993)
I called K&N when I was looking to upgrade my flame arrestor as the Hardin I was using a sharp edge at the air horn. Based on their info the 9x3 would be so restrictive for me that it would pull enough vacuum to close my power valves. I went with a velocity stack style housing with the largest 14" K&N element. AT 5600 rpm I am still showing 0 vacuum so no restrictions for me. Most of the flame arrestors I have seen either are way to small or have serious flow issues due to right angles at the air horn.


You don't happen to have a picture do you?

Pismo10 03-17-2014 12:27 PM

Snake oil..

ThisIsLivin 03-17-2014 10:34 PM


Originally Posted by Black Baja (Post 4091137)
You don't happen to have a picture do you?

PM me and I will send you a photo.

Every modification is only as effective as it's necessity. Milling the air horn on an 800cfm carb on a 330 would be pretty ineffective, on a 572 it would be huge. Same thing with the flame arrestor, my 524 at 6000rpm needs lots of air.


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