SIGMA | Tuning Spanish Webers (in English)

[@jnxmck]

Love watching Isaac work his carby magic, dude's a genius

[@HazeyAuto]

Dudes under fifty tuning carbs. Now this is content that’s worth watching. No offence to the “Page Up” crew, but this is more fun.

[@wobblysauce]

Screw in club

[@Danliquid123]

Not even page up now just bolt on

[@drewbrouder4233]

We need to encourage "Benny and Isaac's Custom works " haha

[@lorinmueller4102]

I'm not sure about "more fun", but it was certainly satisfying to watch.

[@DaRockCRX]

I have been fighting the pop on low throttle transition for 2 years and just found out the real reason. You missed to check one extremelly important point when you did the setup. The position of the throttle blade at idle position in relation to the progression circuit. I did find it in only one Weber book even though it so important. The throttle blade must barely block the first progression hole at idle. As soon as the blade moves it needs to open up the first progression hole. The book says to notch the throttle blades to achieve this. It will enable you to go smaller with idle jet and pump jet, get much better transition and fuel economy. This is also the reason why the weber setup procedure tells you to set the throttle blade stop at 1/2 or 1/4 turn. As soon as you have to deviate from that the throttle blade position is wrong in relation to the progression holes. If you are just slightelly off you can also enlarge the first progression hole by 0.1mm but that is not reversible so better notch the blades as they are available. There are even different angles of blades available for exactly that reason.

[@steveveness3829]

Good to see someone young, that actually knows what I learned 40yrs ago. Tip my hat to you Issac. ( old time sign of respect lost on today's world).

[@aSinisterKiid]

What a wizard. He's got tons of valuable knowledge that is slowly getting lost to time with most car guys. It's been nice to see a sort of resurgence of carby stuff recently in the industry. This was awesome getting to just listen and learn, thanks to both of you.

[@ChristopherHallett]

Mechanics still get taught carburettors at trade school. Even diesel mechanics like me!

[@BennysCustomWorks]

@@ChristopherHallett we spent 4 hours on carbs and that was 15 years ago

[@arcopierik3894]

@@ChristopherHallett Here in the Netherlands they haven't learned anything about carburetors for years. When my eldest son asked his automotive engineering teacher 6 years ago for an explanation about carburetors, he got this answer"Carburetors are no longer used, so buy a moped if you want to play with carburettors”. My son was very disappointed. So I got out my textbooks, and we're about to start rebuilding his first engine for his classic Mini. I think it is a great pity that little attention is paid to the older technology these days. When I look around me, there are still a lot of cars and motorcycles that use this technique That's why I'm glad that attention is paid to carburetors here.

[@tunedcentral]

Webber masterclass in this, gonna have to watch it a few times and probably at half speed to take it all in.

[@gavinoliver8074]

Thats an absolute art to do. I sometimes tune motorcycle carbs but this is so much more in depth. Isaac needs his own channel if he doesn't already. Really good on camera, loads of knowledge and everyone would like to see it I'm sure.

[@HoagesMoto]

Getting a decent run-down on webbers from Isaac, for someone like me whose carb knowledge is centered around bikes, is invaluable. Please pass on our thanks to Isaac, really really appreciate it.

[@1bigsparky]

This is a great episode. I saw this young man on MCM dealing with a VW. He is extremely knowledgeable but not arrogant. His explanation of what is going on with the carbs in relation to driveability, idle, cam etc is direct and factual. As an old school carb guy, I am across what he is talking about. 10/10.

[@BennysCustomWorks]

Thanks mate :) I’m glad you knew what he was saying , I’m still trying to catch up.

[@dylanbrooks546]

I love the mechanical "complex, but simple" abilities of carburetors. But this explains why EFI is necessary.

[@Darkacces]

Tunning Carbs it's kind of a craft art mixed with a lot of knowledge and practice fighting to get it right. Cheers to Isaac for that!

[@icbudmx]

Isaac is a boss on carbs man, i remember him from MCM and the VW bug vid....fantastic!

[@Ty-ts3ku]

Thank you so much for this video! Isaac is an absolute national treasure. The whole Weber fed sigma tuning took me down memory lane and to a very happy place. Wonderful to see such old tech still being understood and used. 👍

[@gavinb9627]

Nothing like a good thrash in the name of science. That noise is pure music, thanks guys.

[@cutters74]

The Sigma now has all the Dorts!!!! It sounded lovely at the end ❤💯🔥👊🏻

[@theSam91]

Great stuff! There isn't enough in-depth info on tuning carbies (that aren't on V8s) on youtube, this is a huge help to me personally, Isaac is a legend. If you're keen to keep the webers and want total control over the timing, have a look at the Megajolt EDIS system. I put it in my twin carb'd Subaru and it works very well. It just controls spark with some other aux inputs/outputs for sensors, gives you control over the entire range of load vs RPM conditions.

[@ChristopherHallett]

Haltech still make ignition-only computers, I feel like if Benny was going to computerise the ignition, he'd go that way.

[@BennysCustomWorks]

@@ChristopherHallett the vms has actually been discontinued but you could use an Elite 750 and run ign only

[@catastrophic82]

WE NEEDED HIM 20 YEARS AGO!

[@AdamRBusby]

reminds me of my old man tuning/working on weber 48ida on my rx3 back in the day... he wrote workshop manuals for gmh but never lost his old school tuning talents!

[@thebnicho]

Sounds awesome. I love Weber carbies, the old-school methods of them and the sound.

[@grouphistorics138]

I use the same innovate LM-2 for this, fantastic hand held wideband. Isaac knows what’s up!

[@biastv1234]

Isaac , awesome job, seriously,webers need such knowledge, really really good job.

[@trailmagnus]

You don't see priests of the dark arts very often. Isaac is an awesome guy!

[@TeamGambleBMX]

Issac is a national treasure 🤘

[@michaelnoyes4817]

Love the sound of Webber's

[@Dazza.]

Idle and progression holes are both on the idle jet boys👍 good job.

[@TJForehand]

Isaac is a legend!

[@seanfahey9787]

that was so satisfying to watch. Go Carbies!

[@finlay230]

This was a friggin class episode, loved it 💪💪💪💪

[@fredericrike5974]

Massive! Not just a roller, but a goer! FR

[@MikeWest_W]

Outstanding. Steam Punk Haltech

[@shadowred1980]

All good having Isaac in the garage.

[@stevegraham3817]

A dying art, the late 80s early 90s was about the last of the carbies. Any mechanic who was 30 back then has retired or is about to, and there is very few people with the skills or interest in playing with carbies anymore. Love your work Issaac, and to everyone else, look after this young fella and learn everything you can from him.

[@davesolty1902]

Watching you tune was intriguing and I’m here to say that cruise and part throttle looked to be spot on in the end but dude there is no way in my 50+ years that naturally aspirated engines make power at 10-11 AFR! I will personally tell you that engine will make peek power between 12.8-13.2 AFR at WOT. Now if it was boosted we run safe at 11.8-12.2 at WOT or a tad richer to cool the cylinders. Also have all your timing in by 3500RPM 32-36 deg! Great to see you playing old school and showing what it used to be like! Can’t wait to see you in the states 💯👍🏼👌🏼🇦🇺🇺🇸

[@rlscustoms]

This has to be the best carb tuning video I’ve ever seen wow man

[@stephanburgess654]

I found a video of yours just the other day building the Sigma. I have spent the whole afternoon on my, to Smart TV to watch every episode made so far. Great build although I rather like builds to original car this was a great afternoon and evening watching your work. I'm an old Chrysler/Mitsubishi nut. Too old to now be able to do rebuilds like you do but not too old to collect scale models and paraphernalia. My scale model collection is nearing 2000 models just of Mitsubishi cars. Not easy when they are not on top of many models makers list. Australian model companies are not even interested. A company called Hi-Story have recently released 1:43 scale models of the Sigma, Colts, L300/Delica, Legnam, Galant, Diamante based on our Magna and Lancer. Prices however are a bit too much for my collection at $100.00 a model. My dream before my accident at work was to be able to have a big shed to house my models and a few real Mitsubishi cars and the collection of brochures of every model released in OZ so far. Unless I win the dam lotto it has come to an end and is why I enjoy what you and many like you are doing so save and restore so many great Mitsubishi cars. Thank You.

[@BennysCustomWorks]

Thanks for watching and sharing mate

[@rickybugg2385]

Fark !!!how good do twins sound!!!!

[@nismofreak33]

man this episode is sooo freaking interesting! also the song at the half way mark, bigggg HPI dvd vibes!

[@itsgrimace]

The Retro Encabulator has now reached a high level of development. Good job Isaac 👍

[@samchristian665]

Did he update to NSP software?

[@mattfisher4256]

I’d love to know what he’s done with the moogbuggy from MCM after they broke it

[@clearstream67]

N64? Oh Isaac... We grew up blowing out Atari 2600 cartridges.

[@paule4204]

Funny I was born in the 80s grew up helping tune a tc cortina with downdraught Webber and blowing the dust out of a Sega system cartridge. Could so relate Isaac's comment.

[@glennscustoms4707]

Had issues with triples on 186 ..kept popping off idle stumble. Found out a progression hole was missing. Once that was done it was a blast to drive.

[@BarrelBros]

Issac is a legend! Also love the colour coded wheels! Perfect period mod!

[@stevesloan6775]

At 5:30 says it all. If you go larger cam with more overlap and duration between inlet and exhaust, you defiantly warrant more compression. Thats one of the bonuses of running a bigger cam shafts, you can run way way more compression, with more advance timing. Im at 11.5:1 compression on a 8000rpm cam on twin DCOE's. This tuner needs his own youtube channel. Not enough webber tuning tutorial videos out there that are not in Italian....LOLS : )

[@BIGPOG]

Ya more sigma content. Great video as all ways mate

[@stephanburgess654]

Hi! Woke up at 3 this morning thinking about something you said you want to do to the Sigma in your video. You talked about installing SE front and rear seats and wanted the rear seat to recline. Also you were talking about putting better speakers in for sound. Your probably aware but it woke me up, when you install the reclining SE back seat you loose about 4” to the parcel shelf. I remember trying to find speakers for my SE it was hell back in the late 70’s.

[@BennysCustomWorks]

Thanks for the info mate, I ended up sticking with the basic rear seats in the end

[@rossmarzano]

lady stalls her car at the traffic lights in front of the cops. Policeman asks what's wrong, lady says it stalled. policeman says pop the bonnet, I'll have a look. He rummages around for a while then says "try that" and it starts right up. lady asks "what was that" and the cop says "shit in the carburettor". lady says "how often do I have to do that?!?"

[@888johnmac]

lol , an oldie .. but a goodie

[@alastairwatson3201]

Best noise e v e r ! PS: was that the Crown 4WD wagon that Daniel featured on Wasabi Cars?

[@bennyillest5508]

Sounds Awsome!!

[@Martin.ac.85]

Loved this kind of very technical videos. Was awesome to see him work.

[@coolkidscarclub]

This carburetor guy is a legend

[@MrKombiman]

Isaac is now known as the Carbonator!

[@gordo5863]

Doing a Re-graph of the dizzy can solve a lot of timing parameter issues

[@super8hell]

Spot on mate! Re-graphing a dizzy can helped tremendously with my retro encabulator, allowed me to spot a malfunction in three out of my six hydrocoptic marzel vanes. Fortunately the ambifacient lunar wane shaft was running true, so no side fumbling for me.

[@paulwiggans3692]

Excellent, knowledgeable, informative. Loved it. Top man to have access to with all that understanding of carbs.

[@lodestone69]

With all this painstaking work, nothing and I mean not even efi itb's sound as good as a set if Webber's on a 4cl, just love it

[@CaptainRedBeardarrr]

At 10:43 is that a Stihl screwdriver? Haha. Old council days..

[@BennysCustomWorks]

Yep, my family have about 10000 of them

[@stevesloan6775]

Jets....Freaking Chokes are real money, even just for four! Late 90's chokes were $50+ each.

[@papapetad]

Carby laptop ftw. Sounds pretty meaty and smooth revving now. Almost time for good bye huh... Whoever gets it will be happy.

[@BennysCustomWorks]

Will be sad to see it go but hopefully the next owner loves the siggy too

[@boxy4973]

What a legend

[@jaydos4265]

I had to do this on my father triple Weber hemi engine. Was a shite of a job 😅 but awesome when you get results!

[@bennyillest5508]

ha that old Crown Safari wagon 😄😎

[@NarfBLAST]

Rewind to 23:45 for that "initial doot".

[@kinglouiesshed8995]

Another enjoyable informative video 👍🏼👍🏼👍🏼👍🏼

[@shanespring2669]

Pure wizardry

[@matthewpickering9270]

He’s a wizard harry!! I’m in the same boat as you Benny. Lol

[@Barrenchats]

My mind has been like... ok magic it is then.

[@DrSyntax1996]

Very informative

[@clives681]

All the borts❤!

[@BennysCustomWorks]

My son’s name is Bort.

[@brettt8246]

I was waiting for the length of poly pipe to come out Iain Tyrrell style!😀

[@AmirPomen]

Im glad there is still nerdy relatively young guy playing carbie in the heaps of world efi today... Carbie whisperer 🥰💪

[@glensubtorq]

I spent so many hours on my Datsun 1600s back in the 90's tuning Webers. Was a great day when I finally got Ric Shaw to fit EFI. So much better than stuffin around with Webers🤣

[@laszlototh5956]

Once you have learned what sound to listen during the carb tuning you just cannot stop doing it. I constantly evaluate all the small dirt bikes the kids ride in our streets. I even give them tips sometimes.

[@ChristopherHallett]

It doesn't take long playing about with carbs before you can hear what they're doing. And smelling the mixture out of the exhaust.

[@mortofromoz1]

A trip back to the past when I had a Datto with a very warm L18 and 45 DCOEs. Frustrating to get right, but when they are, there's nothing better. L18, DCOEs at WOT and 7500 RPM - Ear Porn.

[@gen3v8]

I was pretty good with Holleys in my day

[@tomanycooks]

freaking wizard!

[@gogetem188]

HI ALL WELL AFTER JEROME said main jet 600 times lol love it lol

[@dimadee]

The car by whisperer……love it. EFI has made us lose some of the finer skills of tuning. He is the Maverick of carby Top Gun

[@AudioTones67]

G'day, loved watching this Sigma rebuild. As a former GE owner, it was amazing to hear what an Astron engine could sound like. Just wondering what the fate of the beast was? Did you end up selling it or do you still have it? Thanks!

[@BennysCustomWorks]

Hey mate, I ended up selling it.

[@woopimagpie]

Fuel injection vs carbs is like CDs vs vinyl. The imperfections and compromises are what makes both carbs and vinyl more endearing somehow. Technically, it's not "better", but how can it be if you don't love it as much?

[@poeyd9624]

How many times does Benny say “Yeah”

[@VolkyHaus]

did you use a fuel pressure regulator?

[@kentstroud8218]

Can we get an update from Isaac on the moon buggy? From an Air-cooled VW fan.

[@BennysCustomWorks]

It got parted

[@kentstroud8218]

@@BennysCustomWorks Thanks Benny. May it’s parts keep many an air cooled machine on the road!!!

[@mickc8738]

Fkn classic guys..... com onnnn! You just need to admit it's a rotary next loll if you care about all that🤣

[@blakestacey83]

Isaac is a G! Need to do a dyno video with him and tuning fork @HALTECH. Even though fork is an effective boss I'm sure he would enjoy the idea of this kinda tuning.

[@Willdrknght]

Carby jet drills are perfect for releasing pressure out of crushed finger nails ….. ask me how I know 🤣

[@BennysCustomWorks]

I’ve done the same.

[@wurly1]

What's the carby version of Tuning Fork?

[@felixthecat1672]

Carbyoda

[@NGPLUS0001]

Hoping to see a efi conversion...

[@BennysCustomWorks]

Nope.

[@NGPLUS0001]

@@BennysCustomWorks .. fair enough

[@Low760]

Weber's. You either become an expert or pay one to fix it. It's great fun. Still going through it.

[@Doc_in_the_carpet_truck]

Numbers come through on Saturday lotto Benny its mine will overpay for perfection like that on the Webbers!!! (And the future headlining restoration 🤣👍🍻)

[@shaneskillzrepresent]

'yeah right'

[@Norskenxtreme]

I am amazed. I can't even tune my downdraft 32/36 lol

[@frogonaleash]

If Al is Turbo Yoda then Isaac must be Carby Yoda

[@bret2222]

Captain Carby

[@MrEgghead1999]

Count Carby

[@james.vanmaanenberg]

Carby-Wan Kenobi

[@RoB_666_]

Obi-wan-carbobi

[@rob83r]

Isaac the Harry Potter of carbs 🪄

[@StormHawksHD]

Sounds like I need isaac to tune my 45 DCOE 3sge.

[@vincentdimaio8428]

Does Isaac have a shop? I could use his help

[@BennysCustomWorks]

His profession is actually building, repairing and modifying guitars

[@glensgraphix]

A man who has practiced the Black Magic of Weber tuning. Tunes Webers and tunes guitars. Can he do pianos?

[@shanenorwell8580]

Oh man…I just want to know more about “unfair”🤤

[@gerrys123]

Classic Sigma roof lining lol

[@BennysCustomWorks]

Not for long :D

[@dazdaz9866]

What's Isaac's number? That guy knows his carburettors.... my webber swapped rodeo doesn't run the best lol