620's with SU carbs

[greybeard]

I'm going through the carbs on my truck and want to change the aircleaner as I was never really happy

with what I had on there. (a foam type on a flat base)

 

My set up is a little different than a stock 620, but there is not much room between the rear carb

and the brake booster.

 

Anybody running SU's on a 620? what are you doing for an airfilter? I'm after some Pix of SU's on 620's!

[datzenmike]

I wouldn't mind a pic of yours.

[zerow]

I'm kinda partial to the ones I made:

 

http://community.ratsun.net/topic/5294-su-air-cleaners-for-a-ratsun-price/

[greybeard]

I wouldn't mind a pic of yours.

 

There is a pic in my galery, just can't seem to get it to link, the shot was taken after I pulled them off the truck to refurbish, I'll post up a pic when I get them back on the truck.

 

The reason I asking is my truck has very little space between the face of the rear carb. and the brake booster,

 

I know my truck is not the same as most 620's, so I just wanted to see what a 620 on a stock frame with SU's looked like.

[HRH]

Can't be much worse than a 510 with SUs, except I don't have a brake booster to get in they way. Not much clearance regardless.

[Pacific coast Datsun]

These are the filters that came on my SU's when i bought them. The PO said they were lawnmower filters.... :rolleyes: Just clears the steering shaft & booster.

[zerow]

These are the filters that came on my SU's when i bought them. The PO said they were lawnmower filters.... :rolleyes: Just clears the steering shaft & booster.

PCD, Seeing these filters, I would be worried that the poor thing is struggling for air. There is just not a lot of area for the air to get through. But, if it runs...

[lynchfourtwenty]

wish parts wernt so expensive for my car so i could buy neat things for the truck lol

[ggzilla]

The filter have enough surface area, but won't draw properly. Weber says what? Something like taller than the diameter of the bores. I think an open filter (sock filter) would perform better.

 

Although it probably runs well enough with those.

[Pacific coast Datsun]

I personnaly would like to be able to run bigger filters but the booster is so dam close to the ones on there now i dont have many options. I have sove velocity stacks i could run too & they may clear,,idea's opinions?

Sorry for the hijack.

[ggzilla]

You could use an extra long M/C-booster spacer.

I seem to recall seeing 620s like this

 

(this photo is of Datsun 1200)

[Pacific coast Datsun]

wow thats a different style but i guess it works.

[Jester]

I use a Subaru filter sandwiched between two pieces of aluminum. I also have a early brake booster which is smaller than the later