freaky510 Posted October 18, 2008 Author Report Share Posted October 18, 2008 (edited) they sent me the wrong lashcap the first time.all the assembly was done buy a friend.His dad ownes the local machine shop. i have seen and heard some of the motors HE has built. rode in his shit getin mustang(low 10 in 1/4 .full stock body). so iam pretty sure all the extras (if u will )are right and in properly .but thank you for the input. i would post some pics but we lost the charger for the camera stupid funky batts what happen to aaa batts Edited October 18, 2008 by freaky510 ida b jakaz Quote Link to comment
banzai510(hainz) Posted October 19, 2008 Report Share Posted October 19, 2008 lash caps size are usually sent from cam grinder based on a stock uncut head. Meaning haead saved ,valve seats cut or the valve stem heit cut coul all effect lash pad size including the base circle size if cut or uncut. Quote Link to comment
freaky510 Posted October 20, 2008 Author Report Share Posted October 20, 2008 i have all that could be done to the head done .i have no idea what they did but they (my machine shop friends) Know what they are doing .i know they changed valves to bigger 1s and did some other stuff(port and polished). I got it all together just need to hook up fuel pump and water neck put on the carbs and iam of to the races. After a few test runs.I hope to find my camera charger soon. will post some vid and pics. Quote Link to comment
freaky510 Posted November 14, 2008 Author Report Share Posted November 14, 2008 (edited) this is to contuine the s/u box of crap thread here is the video idk if this helps their is a few more on my photobucket page http://s37.photobucket.com/albums/e86/Mrfreaky510/?action=view¤t=datsunsu007.flv also i have this ? http://s37.photobucket.com/albums/e86/Mrfreaky510/?action=view¤t=datsunsu006.flv Edited November 14, 2008 by freaky510 e Quote Link to comment
Phlebmaster Posted November 14, 2008 Report Share Posted November 14, 2008 Vice vids! I want SUs now. :cool: Quote Link to comment
DISLEXICDIME Posted November 14, 2008 Report Share Posted November 14, 2008 they look out of tune if you turn the mixture screws all the way in (counter clock wise) and let the car idol wil lit die or will it try to keep running Quote Link to comment
freaky510 Posted November 14, 2008 Author Report Share Posted November 14, 2008 i turned them and it still ran didnt seam to try to die did some reading on the links you gave me. now my head hurts:confused:.couldnt get a hold of zthearpy so idk i will wait on taking them a part. Quote Link to comment
DISLEXICDIME Posted November 14, 2008 Report Share Posted November 14, 2008 http://www.sonic.net/~kyle/su.html this helped me Quote Link to comment
DISLEXICDIME Posted November 14, 2008 Report Share Posted November 14, 2008 what are you using to balance the carbs i like to use a piece of hose and stick it at the mouth of the carbs and listen to the sound of the air rushing bye and try to get the pitch the same by adjusting the idol screws Quote Link to comment
Jason Posted November 15, 2008 Report Share Posted November 15, 2008 I usually start by screwing the mixture screw right in and then opening them up 2 full turns. I set the airflow with a Unisysn and try to get the idle on at about 8-900rpm. Quote Link to comment
DISLEXICDIME Posted November 15, 2008 Report Share Posted November 15, 2008 I usually start by screwing the mixture screw right in and then opening them up 2 full turns. I set the airflow with a Unisysn and try to get the idle on at about 8-900rpm. thats how i start out also sorry forgot to mention that Quote Link to comment
zerow Posted November 15, 2008 Report Share Posted November 15, 2008 The dome springs need attention. Open up the domes and check the spring rate. The one in the front looks like it has a spring that is worn. The best way to check is to open up both (make sure you keep each dome with its respective carb) and check the heights against each other. It is possible to stretch the spring slightly to make them match, but don't stretch it too much, they are delicate. I went with stiffer springs and (fingers crossed) it should give better mid-range. Let us know. Quote Link to comment
freaky510 Posted November 15, 2008 Author Report Share Posted November 15, 2008 cool i will check in to that on the carbs. any answers on my 2nd question?its in the second vid. Quote Link to comment
freaky510 Posted November 25, 2008 Author Report Share Posted November 25, 2008 so after talking to a few guys at the sat met i decide to go with a diffrent intake but it need to be modded not sure if it will work but wtf i got nothin better to do.Lol what needs to be removed getting close my gage not to bad for a freak a little more polishing and i think i stop so i hope this works out lol i couldnt find a intake to match my carbs so since i had a few extras i figured what the hell.next i will take it down and have is resufacced and try it out Quote Link to comment
freaky510 Posted November 27, 2008 Author Report Share Posted November 27, 2008 so no one has done this to a intake????:eek: also could this get moved to projects?????????????:):) Quote Link to comment
zerow Posted November 27, 2008 Report Share Posted November 27, 2008 Port Matching is usually done on the cylinder head side, not the carb side. You would match the carb side for 44mm Z carbs, but IMHO, that is too much carb for a 4 cylinder L series motor. If the carbs and maniflod need matched, do a progressive taper from the 44mm outside edge to the 38mm of the manifold. Venturi effect will cause the velocity of the air/fuel mixture to move faster at the end of the taper, and "force" the air/fuel mixture into the combustion chamber. Quote Link to comment
freaky510 Posted November 27, 2008 Author Report Share Posted November 27, 2008 cool so i did tapper it.So i theroy this might work :lol: Quote Link to comment
DISLEXICDIME Posted November 27, 2008 Report Share Posted November 27, 2008 thats the good ontake with the adjustable balance tube nice finde Quote Link to comment
freaky510 Posted November 28, 2008 Author Report Share Posted November 28, 2008 sweet this just keeps gettin better .lol. now i just need ro resurface and mount on the carbs try to tune it. Quote Link to comment
zerow Posted November 30, 2008 Report Share Posted November 30, 2008 thats the good ontake with the adjustable balance tube nice finde Not quite a balance tube, like a Z car. Its an air adjust for smog purposes. If the old adjuster screw gets corroded, too much air gets in, and the carbs are near impossible to adjust. Nissan offers the screw as part of the linkage rebuild kit (99996-D1110), but I happen to have it as part of the "parts not needed" pile in my stash of stuff. PM me and I would be happy to trade for some small trinket of equal or lesser value. NIB part with spring. BTW: Plug the hole above the PCV, not needed for your carbs, unless you have the original air cleaner. Use the PCV, if you get the chance. You will have to fab a hose to work, but it does help reduce the smell in the underhood compartment. Quote Link to comment
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