Posted October 18, 200519 yr comment_142191 Any one have any feedback on the following rebuild kits for round-tops?Victoria has aftermarket (I presume) kits for $20 per carb.MSA has kits that are (supposedly) OE Nissan for $28 per carb.ZTherapy's "tune-up" kit is $120 exchange for the pair.Other options?I'm leaning towards the MSA kits, as the ZT package seems to be more than I need (includes their video and SM needles, both of which I can live without at this time). Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/ Share on other sites More sharing options...
October 18, 200519 yr comment_142202 Zt has the best. You can send me the video! Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-142202 Share on other sites More sharing options...
October 18, 200519 yr comment_142224 You can buy the parts you need from Nissan, with the exception of the float valves and the nozzles, which I believe are NLA (I may be out of date on that). If you don't need to replace those pieces, it is cheapest to go that way. If you do need to replace those parts, Z-Therapy is the only place to get the float valves and nozzles because they rebuild them. In which case it is cheapest to buy their full rebuild kit. The videos are very informative, BTW. Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-142224 Share on other sites More sharing options...
October 18, 200519 yr comment_142232 Whatever you do, dont cheap out on the floatbowl to nozzle tubes/hoses...the cheap aftermarket ones will dry out and crack leaking fuel...usually during some high speed adventure....go oem on these hoses. Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-142232 Share on other sites More sharing options...
October 18, 200519 yr comment_142233 The experts = Z Therapy Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-142233 Share on other sites More sharing options...
October 18, 200519 yr comment_142249 The parts in the ZT kit are better than all the others out there. If you want it done right go with ZT. Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-142249 Share on other sites More sharing options...
October 18, 200519 yr comment_142260 go with ZT. besides better quality parts and the video, you get to pick their brains when you install if you run into any problems. Bruce Palmer and the gang are good sources of info. Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-142260 Share on other sites More sharing options...
October 18, 200519 yr Author comment_142262 OK, sounds like ZT might be worth the extra cash. I suppose it's handy that they are located only 70 miles away, as well. Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-142262 Share on other sites More sharing options...
October 19, 200519 yr Author comment_142285 I just went out to the garage and removed one of my nozzles and looked it over. Found a nice ridge worn in the side about 10-15 mm down from the top. Since new nozzles are in order, ZT is the only choice. Thanks for all the input, folks. I really appreciate it. Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-142285 Share on other sites More sharing options...
October 19, 200519 yr comment_142287 I am looking at rebuilding the SU's on my 71 as well. If remember correctly when I was in college there was a performance kit that allowed you to hone the chamber walls and install a piston bushing? Does anyone make something like that still?I ask becasue the inside of one of my chamber walls seems to have a casting flaw like a bubble that left a divit on the alluminum. The carbs seem to work real well for thier condition but when I rebuild them I want them better than new : ) Or can you just buy new pistons and round tops to make them like new again? Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-142287 Share on other sites More sharing options...
August 14, 201113 yr comment_364010 Just to update this thread (6 years later on): It is interesting that prices have not changed much! I just picked up two SU kits from Black Dragon (Victoria British) and the quality was poor thus the spur to revise this post. Black Dragon Manufacturer: Wells Part Number: CK749 It only includes: - Fuel bowl needle valve assembly and gasket (much shorter assembly than the two I have in the carbs and not easy to disassemble like the originals). - Fuel bowl top gasket (very thin paper material) - Carb to manifold gasket (very thin paper material) - Rubber gasket for plunger (very thin rubber) - Clear plastic spacer for spring base (very thin clear plastic) - Fuel bowl drain gasket - 2 paper washers different colours and materials (for fuel banjo I assume?) I was hoping they would be aluminum like the existing ones. - 3 mystery paper washers (not sure where they go? ID of hole is 10mm and OD of washer is 14mm) Any ideas? Cooling passages? - fuel hose (best part of kit) The gasket paper changed between the two kits I received. The documentation was generic and did not show where gaskets go however it was informative: Page1:su carb.PDF Page2:sucarb2.PDF This is my 2nd kit. At least the gasket material is the same in this one. Comments: This kit needs front gasket for carb and metal banjo gaskets then it would not be so bad. A fuel filter sock, taller needle valves, and better quality paper would also be improvements. Z Therapy ZT150 $180.00 Complete Tune Up Kit for 2 carbs (Needle & seats, SM, N27, N54, or N58 needles, ZT Nozzles, float gaskets, gas lines, banjo seals,4 insulator gaskets, JustSU's DVD) This cost includes a $50 CORE CHARGE on your old nozzles. Send back your old nozzles for $50 refund. Comments: The ZT kit is more of a serious overhaul kit than a refresh kit. It has too much core stuff that I do not need to change (DVD, Nozzles, Needles) . As well the core hassle for nozzle exchange is not my cup of tea. I think ZT would benefit from adding a basic refresh kit to their product line. (quality gaskets & hose & needle valves) Motorsport Auto I looked at the MSA kit and it looks a lot like the kit I received from BD only it is ~ 50% more expensive. Even the way the wire holds the needle assembly is the same. Ebay This all Nissan kit from Japan is good value for $30. Does two carbs. Best Value seems to be this 72 240z Keyster Kit for $30. It does two carbs and has needles too! Needle valves look aftermarket. Edited August 14, 201113 yr by Blue Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-364010 Share on other sites More sharing options...
May 5, 20195 yr comment_574882 Bring this one back to life. Does anyone know anything about the kit from zcardepot that includes damper dip sticks? Link to comment https://www.classiczcars.com/forums/topic/17664-best-su-rebuild-kits/#findComment-574882 Share on other sites More sharing options...
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