Triple Mikuni and Webers
Discussions around the triple Mikuni & Weber carb setups
73 topics in this forum
-
- 1 follower
- 0 replies
- 2.5k views
I have a 73' 240z with triple Mikuni 44phh carbs. The previous owner had the wrong jetting set-up on these carbs, they would spit and lose power from idle in 1st gear and sometime in the other gears also. I found a person to help me with the correct set-up here at classiczcar forum. His name is Dave Premo, dave@tuning4performance.com. I contacted Dave by email for help, he responded to me. He suggested that we should talk by phone. After couple of phone conversations, Dave recommended the parts for my Mikuni 44phh to help correct my issues. Dave is very knowledgeable with Mikuni carbs and is a distributor for Mikuni parts. I purchased the parts from Dave and instal…
Last reply by yippi427, -
-
- 3 followers
- 13 replies
- 3.6k views
Hey guys, back with another question. Recently switched over to Triple Webers back in December. Loving the setup so far, still in the process of tuning them as they don't like open throttle in lower rpms. I am currently having an issue with starting the car after driving for a couple minutes. The car starts up pretty good for three carbs when cold, usually starts right up on the second crank. However she will not start after driving for a while and hot. Example, I drove the car recently for about 20 minutes, pulled up to a gas station to fill up the tank which took approx 2 minutes to do, then I try an start my car right after and the car wont turn on, doesn't matter…
Last reply by jitenshakun, -
- 2 followers
- 5 replies
- 4.1k views
I have the chance to get a set of Triple Mikuni for 2,500 this coming week. I talked to someone at Road Atl about them and how rare they were. I tried to price check online, but I couldn't find any for sale. Is this a good deal?
Last reply by Patcon, -
- 2 followers
- 9 replies
- 2.4k views
Hello everyone, I just completed building my 1978 Datsun 280z Motor with pretty much all new or rebuilt parts besides the block. I'll run down everything I have and have done. -Stock L28 N42 Block with dished pistons (not rebuilt or anything) -Rebuilt Late E88 Head, Ported, 1.2mm head gasket -Brand new Triple Weber 40 DCOE from TopEndPerformance with the Canon manifold -Brand new 3-2-1 headers from TopEndPerformance which I also wrapped with header wrap -280zx Dizzy "upgrade" with E12-80 box -Carter fuel pump -Also fully rebuilt 5 speed Transmission (Long gear ratios) -Planning on getting the MSD Ignition Soon I got the car run…
Last reply by 240260280, -
- 3 followers
- 20 replies
- 4.9k views
Question for you guys - I have a friend who bought this: https://www.ebay.com/itm/Weber-DCOE-Kit-fits-Datsun-240Z-260Z-280Z-Triple-Performance-40-DCOE-K659/272778769560?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649&fbclid=IwAR1-Pa61k0L6wA2H0mXxTlwqbQ5MLFtBQT5KGbX4TlrUgjEMWnvBwIyfpWE Even with the air mixture screw set to max-lean, the exhaust out of this car is so rich it burns your eyes within a few seconds. Are the jets this kit comes with too aggressive? -chase
Last reply by jitenshakun, -
- 2 followers
- 22 replies
- 3.4k views
Hello, I have triple 42 DCOE 8 on my stroker 3.0L L28. Car starts easily and idles nicely. The car is new to me so I can't really comment on the performance, but I can say a single cylinder seems to be running pig rich. I'm firing black out the tailpipe and the #5 spark plug is black and wet. Compression on the cylinders is decent (115psi-125psi) and my coolant was oil free on a recent change. In other words, it isn't a new engine but it seems to be in decent shape. A couple questions I'd appreciate input on: 1. Is there anything in particular to look for on servicing the carb for a single side possibly running rich? 2. What are peoples' experienc…
Last reply by jitenshakun, -
- 2 followers
- 13 replies
- 3.4k views
I'm an issues with the # six cylinder. My carbs were work good before I pulled them of to replace a bad head gasket. After installing the crabs. I notice the car was missing on the #6 cylinder. Pulled the plugs and 1-5 was nice and " brown" but plug on # 6 was wet and fouled. I bought a new plug and replaced it car idle and ran great until # 6 plug fouled and gain in a few miles. I puled the plug out of #6 and grounded it on the shock tower bolts and confirmed that there was spark at the plug. I replaced the wire on #6 just in case. The plug still fouled out. I then lean out the carb on # 6 still the plug still fouled out. I stitched out the plug from #3 and #6. . Drove t…
Last reply by Ed Brock, -
- 4 followers
- 51 replies
- 6.4k views
I recently jetted my triple dhla 40s for a standard N42 L28 and the car felt like it was running great. Basically no hesitations and clean acceleration throughout the the rev range. Carbs are all in sync more less and very responsive. I wanted to do some fine tuning and put on a wideband o2 sensor. The car according to my gauge is running absolutely rich as it gets. I can set it to idle around 14-15afr but as soon as I touch the gas it goes right to 7-9 afr and cruises at 9. The jets/chokes I know are around the proper size. 32 mm chokes, 130 mains, 35 pumps, 7772.5 emulsion. 50 idles, 195 air correctors. What would possibly be the cause of it running super ric…
Last reply by jitenshakun, -
- 12 followers
- 480 replies
- 73.8k views
I am going to be ordering a triple weber setup for my L28. First, my engine basic stats: L28 F54/Flattops, .040 bore, E31 Head which is ported/etc, 500/300 cam, 6-1 header, pertronix igntition, etc. My whole engine install thread here: I've been running the round top SU's with SM needles. They go lean up top despite the needles and repeatedly checking the floats/fuel delivery/etc. Looking to go triples. The good news is my engine was built as a backup for a race car and it came in the crate with jet sizing written on the valve cover. So I have a good starting point. Just hoping you guys can help fill in the blanks. I am learning here. …
Last reply by blodi, -
- 1 follower
- 4 replies
- 2k views
Ive been trying to park my Z in the garage but after awhile of sitting in the garage, it starts to smell like gas. I did check each carb venturi area and some have fuel sitting while others look dry. Is this normal? im suspecting it might be fuel level adjustment that maybe out of spec (which i never checked since i got them) but im not sure if its that or possibly a leaky part somewhere. did change all the necessary gaskets and seals prior to installation. I mean i do know there will be some gas odor naturally with carbs but not bad enough to fill the entire garage up. I checked the gas tank and lines and don't see any leaks. it just smells near the carbs themselves. Any…
Last reply by fairladyz432, -
- 2 followers
- 23 replies
- 4.3k views
Hi Guys, Just installed a rebuilt set of 40DCOE's. I can't seem to get the car running. Is their only 2 adjustments, the throttle linkage adjustment at the base of the car and the idle mixture screw by the rear. I did notice a few plugs have gas on them and there was plenty of gas in each carb. Is their any other adjustment I am missing? Also what is everyone using to block the fuel first fuel line and the coolant lines to the old SU's? Finally who sells the throttle linkage? Thanks!
Last reply by hatepotholez, -
- 2 followers
- 5 replies
- 2.6k views
I just stumbled upon a site offering Mangoletsi triple side-draft manifolds. I had never hear of them before. This thread Lists all of the ones I had ever seen mentioned and then some, and they don’t show up here either. There are only two mentions of Mangoletsi on this site, and nothing very informative. Any opinions? —- and while I have your attention, is there anything wrong with the Harada manifolds? They seem readily available and relatively low price.
Last reply by Jason240z,
-
Recently Browsing 0 members
- No registered users viewing this page.
