greybeard Posted January 9, 2010 Report Share Posted January 9, 2010 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! Quote Link to comment
datzenmike Posted January 9, 2010 Report Share Posted January 9, 2010 I wouldn't mind a pic of yours. Quote Link to comment
zerow Posted January 9, 2010 Report Share Posted January 9, 2010 I'm kinda partial to the ones I made: http://community.ratsun.net/topic/5294-su-air-cleaners-for-a-ratsun-price/ Quote Link to comment
greybeard Posted January 10, 2010 Author Report Share Posted January 10, 2010 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. Quote Link to comment
HRH Posted January 11, 2010 Report Share Posted January 11, 2010 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. Quote Link to comment
Pacific coast Datsun Posted January 11, 2010 Report Share Posted January 11, 2010 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. Quote Link to comment
zerow Posted January 11, 2010 Report Share Posted January 11, 2010 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... Quote Link to comment
lynchfourtwenty Posted January 11, 2010 Report Share Posted January 11, 2010 wish parts wernt so expensive for my car so i could buy neat things for the truck lol Quote Link to comment
ggzilla Posted January 11, 2010 Report Share Posted January 11, 2010 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. Quote Link to comment
Pacific coast Datsun Posted January 11, 2010 Report Share Posted January 11, 2010 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. Quote Link to comment
ggzilla Posted January 12, 2010 Report Share Posted January 12, 2010 You could use an extra long M/C-booster spacer. I seem to recall seeing 620s like this (this photo is of Datsun 1200) Quote Link to comment
Pacific coast Datsun Posted January 12, 2010 Report Share Posted January 12, 2010 wow thats a different style but i guess it works. Quote Link to comment
Jester Posted January 12, 2010 Report Share Posted January 12, 2010 I use a Subaru filter sandwiched between two pieces of aluminum. I also have a early brake booster which is smaller than the later Quote Link to comment
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