Best Air filter for 750 DP Holley

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Basin_Runner355
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Best Air filter for 750 DP Holley

Postby Basin_Runner355 » Thu Jan 04, 2018 7:51 pm

Recently got me a 750 dual feed double pumper was wondering what is the beat filter that allows the most air to flow through it with open carb it was turning right at 5400 with the filter and the cover on it went down to right under 5200 was just trying to get thoes rpms back
14ft diamond back mild zz4 355sbc pushin 410 hp 430 TQ 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

Coastslider
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Re: Best Air filter for 750 DP Holley

Postby Coastslider » Thu Jan 04, 2018 9:20 pm

What carb we’re you running before ?

Basin_Runner355
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Re: Best Air filter for 750 DP Holley

Postby Basin_Runner355 » Fri Jan 05, 2018 5:02 am

A demon 650-750 I’m not sure dual feed DP
14ft diamond back mild zz4 355sbc pushin 410 hp 430 TQ 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

loudmouse
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Re: Best Air filter for 750 DP Holley

Postby loudmouse » Mon Jan 08, 2018 8:28 pm

IMHO demon is a better carb but both are capable. A 3" aircleaner is the minimum I consider for performance gains. But on an airboat they can break the mounting stud off. R2CPerformance.com makes some of if not the best filters.
15' Alumitech deckover LSX TT Oxbox 84" JX 4-blade
Gas required Water optional :dontknow:
Built and Tuned by Me
14'X8' JW, Chevrolet 122CID LNF Turbo Engine, Ox box, 80" NGR 3 blade

Life is short, eat your dessert first! :downtown:

Basin_Runner355
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Posts: 134
Joined: Sun Nov 13, 2016 7:16 am
Location: St.martinville , Louisiana

Re: Best Air filter for 750 DP Holley

Postby Basin_Runner355 » Tue Jan 09, 2018 7:25 am

loudmouse wrote:IMHO demon is a better carb but both are capable. A 3" aircleaner is the minimum I consider for performance gains. But on an airboat they can break the mounting stud off. R2CPerformance.com makes some of if not the best filters.



Do you have a part number or someting. I can go
Off of and if you want or know somebody im trying to sell my demon it’s freshly rebuilt. Only reason I took it off is cause my mechanic don’t like demons and he had a used Holley Laying around I got for a good price idd sell that demon for $200
14ft diamond back mild zz4 355sbc pushin 410 hp 430 TQ 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

loudmouse
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Re: Best Air filter for 750 DP Holley

Postby loudmouse » Tue Jan 09, 2018 7:33 am

You would need to order the element based on what will fit ur housing and boat.
15' Alumitech deckover LSX TT Oxbox 84" JX 4-blade
Gas required Water optional :dontknow:
Built and Tuned by Me
14'X8' JW, Chevrolet 122CID LNF Turbo Engine, Ox box, 80" NGR 3 blade

Life is short, eat your dessert first! :downtown:

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JAMES
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Re: Best Air filter for 750 DP Holley

Postby JAMES » Tue Jan 09, 2018 3:46 pm

Drill tap carb to 5/16 ss all tread be done use lock tight to install no problems i use 5” k&n
https://m.facebook.com/321ccc/?ref=bookmarks Wp383 268 rotator 3 bld WT/EX 14.4 perdator

stonny9
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Re: Best Air filter for 750 DP Holley

Postby stonny9 » Tue Jan 09, 2018 4:31 pm

I saw a youtube video a few months back comparing air filters where the dyno just the engine. The most power came from air filters that directed airflow straight down. They did a k&n shaped like an old school air cleaner with pleats on top and sides. More power was made with the sides ducts taped taking air from just the top.

loudmouse
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Re: Best Air filter for 750 DP Holley

Postby loudmouse » Tue Jan 09, 2018 9:27 pm

Yes the straighter the air entering the venturi the less turbulent the air is and more flow in = more fuel= more power out.
15' Alumitech deckover LSX TT Oxbox 84" JX 4-blade
Gas required Water optional :dontknow:
Built and Tuned by Me
14'X8' JW, Chevrolet 122CID LNF Turbo Engine, Ox box, 80" NGR 3 blade

Life is short, eat your dessert first! :downtown:

Basin_Runner355
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Joined: Sun Nov 13, 2016 7:16 am
Location: St.martinville , Louisiana

Re: Best Air filter for 750 DP Holley

Postby Basin_Runner355 » Wed Jan 10, 2018 9:24 am

That place r2c performance makes a base that’s suposed to give you more power

http://www.r2cperformance.com/products/ ... ductId=264

7837DD1E-2A2A-4F68-95C4-9394B3548672.png
14ft diamond back mild zz4 355sbc pushin 410 hp 430 TQ 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

Basin_Runner355
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Posts: 134
Joined: Sun Nov 13, 2016 7:16 am
Location: St.martinville , Louisiana

Re: Best Air filter for 750 DP Holley

Postby Basin_Runner355 » Wed Jan 10, 2018 9:35 am

But that base plate only works with a 14 dia filter Ima prob go with thier 11x4 filter
14ft diamond back mild zz4 355sbc pushin 410 hp 430 TQ 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

loudmouse
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Re: Best Air filter for 750 DP Holley

Postby loudmouse » Wed Jan 10, 2018 9:09 pm

A drop base is not as good as a straight base or a raised if u have the clearance
15' Alumitech deckover LSX TT Oxbox 84" JX 4-blade
Gas required Water optional :dontknow:
Built and Tuned by Me
14'X8' JW, Chevrolet 122CID LNF Turbo Engine, Ox box, 80" NGR 3 blade

Life is short, eat your dessert first! :downtown:

Basin_Runner355
Southern Airboat Member
Posts: 134
Joined: Sun Nov 13, 2016 7:16 am
Location: St.martinville , Louisiana

Re: Best Air filter for 750 DP Holley

Postby Basin_Runner355 » Wed Jan 10, 2018 9:43 pm

I think I’m going to go with a k&n PN# 59-3370 read some where that it flows almost 900 cfm and that’s plenty
14ft diamond back mild zz4 355sbc pushin 410 hp 430 TQ 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

Basin_Runner355
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Posts: 134
Joined: Sun Nov 13, 2016 7:16 am
Location: St.martinville , Louisiana

Re: Best Air filter for 750 DP Holley

Postby Basin_Runner355 » Wed Jan 10, 2018 9:44 pm

CD4D4A59-4527-41B0-894C-83B9C0D9CB34.png
14ft diamond back mild zz4 355sbc pushin 410 hp 430 TQ 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

loudmouse
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Location: Ocala Fl

Re: Best Air filter for 750 DP Holley

Postby loudmouse » Wed Jan 10, 2018 10:20 pm

Well you asked for the best filter and I gave it to u. K&N doesn't come close to a r2c filter. Filters that use oil cut flow dramatically.
15' Alumitech deckover LSX TT Oxbox 84" JX 4-blade
Gas required Water optional :dontknow:
Built and Tuned by Me
14'X8' JW, Chevrolet 122CID LNF Turbo Engine, Ox box, 80" NGR 3 blade

Life is short, eat your dessert first! :downtown:

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JAMES
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Re: Best Air filter for 750 DP Holley

Postby JAMES » Wed Jan 10, 2018 10:58 pm

Dyno proves K&n exstream
Flow is grest !! 5” 14 round
https://m.facebook.com/321ccc/?ref=bookmarks Wp383 268 rotator 3 bld WT/EX 14.4 perdator

Basin_Runner355
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Posts: 134
Joined: Sun Nov 13, 2016 7:16 am
Location: St.martinville , Louisiana

Re: Best Air filter for 750 DP Holley

Postby Basin_Runner355 » Thu Jan 11, 2018 5:09 am

Only thing keeping me from getting a r2c filter is they are to big my boat is a hunting boat and if I get a filter over 9 inches dia my plastic cover won’t fit and my boat sits in the rain and I quite often am running in the rain and I don’t know who makes a bigger plastic cover that covers the carb and distributor
14ft diamond back mild zz4 355sbc pushin 410 hp 430 TQ 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

Rich Andrews
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Re: Best Air filter for 750 DP Holley

Postby Rich Andrews » Thu Jan 11, 2018 1:19 pm

K&N did a great job marketing but for an airboat I hate their filters, they gum up too quick, thats if your an off trail rider
I'll have my Manatee burger medium please...just say NObama

14x8 deckover FELBER 397ci.. HP ???..just stay back!!

LOHA is AHOL backwards

Basin_Runner355
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Posts: 134
Joined: Sun Nov 13, 2016 7:16 am
Location: St.martinville , Louisiana

Re: Best Air filter for 750 DP Holley

Postby Basin_Runner355 » Thu Jan 11, 2018 2:59 pm

Yea that me always running through the woods. And through the marsh but at least you know the trash isn’t in your engine causing damage
14ft diamond back mild zz4 355sbc pushin 410 hp 430 TQ 2:1 belt drive reduction with a 78 water walker falcons pitched at 5200

Rich Andrews
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Re: Best Air filter for 750 DP Holley

Postby Rich Andrews » Thu Jan 11, 2018 3:29 pm

I have a hard time believing a 1 dollar air cleaner if changed periodically isnt as good as a k&n which requires the same maintenance
I'll have my Manatee burger medium please...just say NObama

14x8 deckover FELBER 397ci.. HP ???..just stay back!!

LOHA is AHOL backwards


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