Joyner 650 Sand Spider Carb vs. Turbo??

Posts: 18

If you purchased Fast freddy's webber kit and hooked it up as the instructions supplied. Im finding i cannot get full throttle because there not enough adjustment in joyner linkage. Pull the air cleaner and take a mirror have a helper push the throttle pedal all the way to the floor,look in the mirror and see if you are getting w.o.t. I treid this i was only getting about 3/4 throttle using all adj. I ended up removing the throttle pedal and band sawing a half circle to clear the frame rail. Its about the beefiest gas pedal there's plenty of meat you will have lots of room and will not weaken it at all. Well what a difference,come on turbos ill give you a better run than you think i will. Another help im at 33 degrees advance, valves 7 thou. This has helped also.Ifeel 5 thou. on valves is to tight.If you want to see my buggy ill be at the cinders july 26 we always camp by dry lake. great riding hope to see you there az.

Posts: 934

Ghost, you are still looking at this as turbo vs carb. The carb is a fuel metering device. It regulates how much fuel is sent down to the pistons. The turbo is an air delivery device. They do different things. The thing to do is to upgrade both. On our turbo 650 we have a weber carb which is light years ahead of the stock carb and probably gave us 10 to 12 HP just because of better fuel delivery, and then a turbo with about 8 lbs of boost that gave another 15 to 20 hp. We run premium gas, but even that isnt needed, Ive run regular because it was all i could get and still didnt get any preignition. With this setup, 1st gear which is usually too high is just right and 4th becomes a cruising gear instead of virtually useless. I have a top speed of around 70 at 8000 ft elevation which probably will be about 5 to 10 mph faster at sea level. I am not knocking you carb install I think it is a great first step. Now put a turbo on it keep the boost at 10 lbs or less and watch that thing really open up. Van

PS nothing against the kit fast freddy sells, but carbs are a dime a dozen out there, because of the VW market. We purchased our weber off craiglist for $100 bucks. Set it up for the spider and were off and running. Dont just look at weber either there are alot of carbs that will work well. My next step is to go to a 2 barrel like the holley bug spray or weber progrssive which should give me better drivability and even more hp.

Posts: 18

I have worked tiltson, bing, delarto, kehlin, mekunie,webber hads down has been the best performer,easier to change jets,and tune,plus lots of parts axail. Im not disputing that turbos are faster than carbs,i know tubos are faster. Turbos are with all the plumbing butt ugly. Ive only seen mabe one or two setups pleasing to the eye. Im running a 32dcof 2 barrel the idle , and accer. are unreal. For a 1200.dollar mod i would recommend to anyone. Top speed on gps 71 mph 1800 feet.

Posts: 18

Hey Vanet i will be up your way july 26,27 at the cinders in flag. I camp on the north side of the crater in the dry lake. I have large wht.chevy van and a rampage toy hauler you can't miss me. Convince me to blow another 1000.bucks and make my buggy look like swimming pool pump. Hope you can make it the race is on WAHOO.

Posts: 934

Im about three hours from flagg but I have been wanting to go to Cinders. I was planning to go for the big bash in August, but I might make it that weekend. I will try to find you. As for the turbo looking funny mine is all painted black and most people look at least twice before they even know it is there. I will be curious to see how much the elevation slows down your buggy. Do a gps run and let me know so I can adjust mine. I am going to mexico in November but I hate to wait that long to find out how much top speed I will pick up. I am also curious as to what you have to do if anything to your car at the higher elevation. Do you have to rejet or can you just adjust the carb with a screw driver and call it good? As far as price a buddy and I just put together a turbo for his buggy and the cost was less than 400.00. Bought the turbo on the net (I forget the site, but all they sell is reconditioned turbos) for around 185, fuel pump was another 50 and we found a plumbing kit on ebay that had most every thing else, except gauges. The gauges we got at the wrecking yard for 5 bucks off a wrecked sprint. I know not everybody can get that kind of deal but you definatly do it for alot less than 1000.00. Van Very Happy

Posts: 18

Ive already down jetted my weber i hope i went far enough. Last year i didn't go small enough it was a little sluggish. My truck has fuel injection no problem there. I just installed trans. cooler with inline magnetic filter it works in tandom with stock cooler plus a water misting system. Will see how it works on those long climbs pulling 9000lbs. By the way a you running air cooler on your turbo. I would think a cooler charge would give even more h.p. Well hope to see you thanks for letting me jerk your chain a little . Its been great going back and forth with you.

Posts: 934

You too. No on the cooler, in my climate with the open engine compartment and where the air filter is it doesnt seem worth it. Hope I can get there.

Posts: 16

bit late repling, I can tell you regarding the webbers, my brother and I have sandspiders 650cc and I give mine hell, I imported series 2 and my brothers was series 3. Before my brother changed the standard setup to the webber I took great pleasure ramming him from behind, since he changed to the webber I just need to try a litle harder but there no escape. The webbers based on cost gave him little more and 1/2 the fuel economy.

Posts: 18

Does your brother have 1 barrel or 2barrel carb any exhasut mods sounds like a tuning problem. Are you running a turbo.

Posts: 934

Hey ghost I wasnt able to get to flagg. How did it go? Did the elevation rob much power? I was able to take my 1000 out for a top speed run a couple of weeks ago after I changed the filter out for a K@N. By gps I got to 76 but there was still more there. At that speed it started to feel squirley and I back out since I was on a tree lined road up here in the mountains. My point is I am not sure I want too much more top speed in the 650 I am not sure it would handle it. Of course if I was in the dunes with nothing to hit it might be a different story. Van