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Don't Buy ZCarDepot's new su air filters! Huge design flaw


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Title says it all, SU Air Filter Set 650-275.sit6NcR.jpg They drilled the air filter cap to bolt vertically with the dashpot and it interferes with the backing plate. On top of that, it fits so poorly as to cause the backing plate to bow from the interference of the screw head on the dashpot.q6ekxRp.jpg There's a 1/16th inch gap between the carb throat and backing plate, they said add a few more gaskets  :angry:  Guess what happens when the gaskets deteriorate and a bolt comes out inside the filter? And how do you get a tool to the top bolt without removing the dashpot? Its a phillips head btw. They won't stand behind their products, last purchase I'll make from them.. Thought I'd let ya'll know, these are priced at 60 bucks buyer beware. Here is the k&n version showing the bolts holes horizontally for attaching the filter tops. Hope Matt from zcardepot is a member on here; you sir are a :poop: qwdNcKN.jpgWtvE5sU.jpg

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You should have something like a velocity stack and then a thicker filter. There's room but those things, the air has to make a 90 degree bend.

 

Maybe stack two more filters on with longer bolts to get that outside plate away from the carb opening.

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In the process of trying to get refunded; Going to have to go through the credit card company unfortunately.  I thought about redrilling the filter cap screws horizontally but thought I'd give them a chance to make it right and let them know they have a faulty product but they could care less

 

 I agree datzenmike, I remember reading something about dual air filters setups losing power over factory air box with built in velocity stacks. That 60 dollar price tag got me though..  Off to scour ebay on the hopes of finding a stocker under a couple hundred 

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they make screws with thinner heads 

would this be a helpful option

and yes i agree its a design flaw  

I figured they had studs welded when I saw the initial picture. Could use a smaller screw head but still can't get a tool to it.. Just find it odd these made it through R&D to be sold

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I believe what I did was grind the head flat and I put a nut on the inside to hold it in place(keep it from turning), it is poorly designed.

I am thinking it was designed for British carbs and they figured out they would work on Japanese carbs, so they sell them for them also.

Is the inside hole for the carb the correct size or is it smaller?

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I believe what I did was grind the head flat and I put a nut on the inside to hold it in place(keep it from turning), it is poorly designed.

I am thinking it was designed for British carbs and they figured out they would work on Japanese carbs, so they sell them for them also.

Is the inside hole for the carb the correct size or is it smaller?

It does appear smaller now that I look at it

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