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AC Dodd
Приєднався 4 лис 2011
A view into the world of repairing and tuning BMC A-series engines from a hands on perspective and my passion for engineering machine work…..
Introducing a brand new ACDodd HIF44 SU!!!
Very happy to bring this to the market, for the first time I have managed to get a brand new SU carburettor direct from SU built to my fast road spec!! This means for those that don’t have exchanges typically customer in other parts of the world, there is now an off the shelf version which you can buy and fit which has all the same parts I fit to my rebuilds you see me fitting in the tuning videos……
Available from Burlen Fuel systems ABF1094ACD
Available from Minispares FZX3006ACD
*****minispares now have these instock!*******
Available from Burlen Fuel systems ABF1094ACD
Available from Minispares FZX3006ACD
*****minispares now have these instock!*******
Переглядів: 1 021
Відео
How the SU carburettor works - Part 1
Переглядів 2,1 тис.14 годин тому
I felt compelled to put this video series together, based on the cars I see for tuning, after all these years people still don’t understand how this carburettor actually works…..
On the road ‘tuning’ with ACDodd - S3, Ep29 MLMotorport
Переглядів 1,2 тис.День тому
Join me as I tune more cars at MLMotorsport in Kent…..
On the Road ‘tuning’ with ACDodd - S3, Ep28 Fueling - Deep Dive!!
Переглядів 2,4 тис.14 днів тому
This time I get to demonstrate part throttle fueling correction, enjoy!
My Ford Ecoboost failure….. Part 1
Переглядів 3,6 тис.21 день тому
This is a 93,000 mile 1.5 ecoboost 4 cylinder dry belt engine, which has failed in service. Watch for how I am dealing with this and how I get on.
On the road ‘tuning’ with ACDodd - S3, Ep27 a triumph and a fast road mini
Переглядів 1,7 тис.21 день тому
Out on the road again, and this time a poor running Triumph Dolomite 1300 gets my attention, as does a 70’s fast road mini….
On the road tuning with ‘ACDodd’ - S3, Ep26 Non start, Deep Dive!!
Переглядів 1,6 тис.Місяць тому
An interesting look at what can happen when people who should know what they are doing don’t…… If any one leaves a comment trying to guess the name of the company, then that is their own view and does not imply that it is the company concerned here. I shall remain silent. This video is provided for information purposes to inform owners that they need to look into what services they are actually...
On the road ‘tuning’ with ACDodd - S3, Ep25 Part 2
Переглядів 1,8 тис.Місяць тому
Welcome to Part 2 of the RJM Minis tuning day. More minis plus something different, an SU equipped comma van!!!
On the road ‘tuning’ with ACDodd - S3, Ep25 RJM minis - Part 1
Переглядів 1,5 тис.Місяць тому
Join me as I head off to RJM minis to tune a bunch of their customer vehicles……
On the road ‘tuning’ with ACDodd - S3, Ep24 1275’s’ Deep dive!
Переглядів 2 тис.Місяць тому
Trying something a bit different, this is an opportunity to understand why I do what I do and help you as owners to maximise the life and enjoyment from your SU powered vehicles….
On the road ‘Tuning’ with ACDodd - IOW adventure 2024
Переглядів 923Місяць тому
Join me as I head off to the Isle of Wight for the West Country minis isle of wight adventure 2024, my mission as usual is to make minis run very nicely indeed!!!!
On the road ‘tuning’ with ACDodd - S3, Ep23 - Hayling island
Переглядів 1,3 тис.2 місяці тому
Join me as I travel to Hayling island for a multiple car tuning event…..
On the road ‘tuning’ with ACDodd - S3, Ep22
Переглядів 1,2 тис.2 місяці тому
On the road ‘tuning’ with ACDodd - S3, Ep22
On the road ‘tuning’ with ACDodd - S3, Ep21 Five minis!
Переглядів 2,1 тис.2 місяці тому
On the road ‘tuning’ with ACDodd - S3, Ep21 Five minis!
On the road ‘tuning’ with ACDodd - S3, Ep20 Old Cars
Переглядів 1,6 тис.2 місяці тому
On the road ‘tuning’ with ACDodd - S3, Ep20 Old Cars
On the road ‘Tuning’ with ACDodd - S3, Ep19 MLM and a nice VDP!!!!
Переглядів 1,2 тис.3 місяці тому
On the road ‘Tuning’ with ACDodd - S3, Ep19 MLM and a nice VDP!!!!
ACDodd Inspex…. Ep2 The clutch backplate
Переглядів 9103 місяці тому
ACDodd Inspex…. Ep2 The clutch backplate
On the road ‘Training’ with ACDodd - Holcombe Garage
Переглядів 1,3 тис.3 місяці тому
On the road ‘Training’ with ACDodd - Holcombe Garage
On the road ‘Tuning’ with ACDodd - S3, Ep 18
Переглядів 1,5 тис.3 місяці тому
On the road ‘Tuning’ with ACDodd - S3, Ep 18
On the road ‘tuning’ with ACDodd - S3, Ep17 CGRemaps and a Morris Minor
Переглядів 9024 місяці тому
On the road ‘tuning’ with ACDodd - S3, Ep17 CGRemaps and a Morris Minor
On the road ‘Tuning’ with ACDodd - S3, Ep16 - Minimedics tuning weekend
Переглядів 1,1 тис.4 місяці тому
On the road ‘Tuning’ with ACDodd - S3, Ep16 - Minimedics tuning weekend
Milwaukee Low demand, high capacity M18 battery build - Part 2
Переглядів 4664 місяці тому
Milwaukee Low demand, high capacity M18 battery build - Part 2
Milwaukee Low demand, high capacity M18 battery build!!!! - Part 1
Переглядів 4034 місяці тому
Milwaukee Low demand, high capacity M18 battery build!!!! - Part 1
On the road ‘Tuning’ with ACDodd - S3, Ep15
Переглядів 1,5 тис.4 місяці тому
On the road ‘Tuning’ with ACDodd - S3, Ep15
On the road ‘Tuning’ with ACDodd S3, Ep14 Horley & 4 cars…..
Переглядів 1,7 тис.4 місяці тому
On the road ‘Tuning’ with ACDodd S3, Ep14 Horley & 4 cars…..
On the road ‘Tuning’ with ACDodd - S3, Ep 13 Metro Magic
Переглядів 1,3 тис.4 місяці тому
On the road ‘Tuning’ with ACDodd - S3, Ep 13 Metro Magic
Milewaukee M18 rebuild & upgrade - Part 2
Переглядів 2,5 тис.5 місяців тому
Milewaukee M18 rebuild & upgrade - Part 2
On the road ‘tuning’ with ACDodd - S3, Ep12, 2 Mini and a Moggy!
Переглядів 1,3 тис.5 місяців тому
On the road ‘tuning’ with ACDodd - S3, Ep12, 2 Mini and a Moggy!
Milwaukee M18 battery rebuild & Upgrade - Part 1
Переглядів 8 тис.5 місяців тому
Milwaukee M18 battery rebuild & Upgrade - Part 1
ACDodd Inspex - Episode 1 - Bore Wash!!!
Переглядів 2,5 тис.5 місяців тому
ACDodd Inspex - Episode 1 - Bore Wash!!!
Congratulations, we are grateful for your constant improving input for our minis, innocentis and other a-series engined cars. You are a legend!
Can you tune a.fast road 1100 with a weber 28/36 dcd carb
You can try, but I've never had much joy with Webers on the A-series engine; they tend to be difficult to start from cold, have a lumpy idle and also problems with the crankcase breathing. You're probably better off sticking with an SU.
No, su carbs only
AC, can you confirm what size of A and A+ engines the HIF44 is suitable for, please? Many congratulations on the new product and for your ongoing support for Minis and Metros.👏👏🙌👍
Best suited to 1275 engines, 1100 fast road motors, and highly tuned road based 998 based engines
@@ACDodd I know what to get as and when FRUty's carb wears a bit more!😁
Congratulations, improving on the original. Looks very shiny and expressive… just in time for christmas 👍
Well done, Sir! Out of interest, are the fast-drop dampers available separately, and if so, how much, please?
Part number lzx2085, available from Burlen fuel systems and minispares
That's some achievement Adrian. Something to be proud of. Thank you for your contribution to the Mini & classic car community. 👍
Thankyou
Great bit of kit, well done getting it to market and I'm sure it will be the go to choice for anyone looking for the latest in SU tech. I was half expecting Cod and Chips to appear when the parcel was unwrapped...
I have ordered mine already🎉🍾 Looks awesome, AC, so looking forward to getting it🥇
Congrats and respect for helping 'classics' running . Stand proud !
Congratulations Sir, becoming a world wide brand 🎉❤
ACD = 🌍 No 1 for Mini SU 👍
What an honour!
Nice bit of kit 🎉
a good thing to show would be the different jets available for each carb. fixed jets come in rebuild kits, so do you piecemeal a rebuild kit? And do you use the waxstat jets for all HS carbs?
No both jet types are available in rebuild kits, as are the exact rebuild kits I use for the carbs I rebuild, CRK121A for the HS4 carbs
Superb 👍…As Mini(etc) owners, I’m guessing we know 70% of this…but the 30% you teach us , is both fascinating and of course critical to running and tuning….thankyou 👍
I would guess on average most are below 30%!
Will connecting a crankcase breather to the carb affect the mixture in the engine?
No, because the carb is calibrated with it fitted.
Excellent. So many gorgeous minis and varients around the country
Hi mate ive just subscribed to your channel and your vids are a brilliant source of information. Can you tell me how to book a tune up please?
Send me a message on Facebook messenger
its okay on old engines that aunt a 100% rebuilt @!
Great video! Are there HIF carbs with ported vacuum from factory? Mine is already ported vacuum.
Yes a few were made like this but the vast majority are manifold vacuum.
@ACDodd ok thanks. As my Mini is from 1992, maybe this change was implemented quite late in the production of carbs.
@@ptirom44it was, your 92 car has emission limits hence the factory adjusted the carb to ported vacuum for the same reason I do.
if done correctly vale lapping not needed !
Good info. Thanks for sharing.
Excellent❤😂
What you recommend for checking the bottom for straightness or square. Got a boring that would be stored on the floor.
Never store them on the floor. Raised up on a softer material like wood is ideal and keep the face lubricated. Bore a block and then rotate the machine 180 degrees offset the bore 0.005” and then increase the cut by 0.010” off it cleans the bore all the way around the cylinder it’s perfectly square. If it does not, it’s out
@ thanks so much
this is great 👍🏻 👍🏻👍🏻
Another brilliant video - your sharing of knowledge and experience is greatly appreciated.
Great informative video AC.. Learning all time . When you move the vacuum tube. Which process to you use to plug the old hole ..
Thred the hole and plug it.
thanks for everything this season, AC. Have you ever tuned SUs for running in very cold conditions ? Winter is on us in the middle of Canada and temps of -20 to -35 will be common for the next 3 months. When our '67 MGBGT was new (and we still have it) when the cold hit I took it to the BMC dealership with stumbling on acceleration. The service mgr told the mechanic to richen the carbs 3 flats. From your videos, perhaps a needle change would have been better ? Minis at that time had a 12 volt heater band around the dashpot since piston freezing was an issue. Our Volvo 122S had 2 HS6s and no dashpot heaters and freezing pistons was an issue with them as well. Carb air preheat was unknown back then. John in Manitoba.
I agree carb heating would be required. You need to install a wide band gauge and do some monitoring yourself during these conditions, you may find that a different needle profile may be beneficial in the coldest months.
@@ACDodd thanks AC. I am going to buy a wide band gauge. Any advice here on brands or costing ?
Amazing video! As a mini owner who tries to keep my car running, I find this content very useful and informative. Thank you so much for sharing this knowledge.
Glad you like them, please like and subscribe to my channel, this is your way of easily supporting me as this grows, and will enable me to add more content.
AC, what are your thoughts on the effects/risks of running E10 with SUs
Run E5 and use a fuel stabiliser. Having the carb(s) rebuilt with genuine parts Mean that the carb is fitted with all the ethanol protection that can be afforded. Stabiliser added to your fuel will add the rest of protection needed. At this point there will be no issues with using modern fuels with your SU equipped vehicle. One last point, you need to ensure that all your rubber fuel hose is changed to the correct ethanol rated standard to avoid premature failure of hoses.
@ACDodd thanks AC. Unfortunately they have stopped supplying E5 in Ireland so we are forced to run E10
@@damiendoran9739then it really important to run a stabiliser, it’s the future and there is no avoiding it. The good news is, your engine will run better anyway!
Excellent, thanks!
Your knowledge of these su carbs are amazing great video
Great video AC, and happy birthday too.... Question.... why did the factory opt for manifold vacuum signal over behind throttle blade? Or is this just your performance improvement to only bring in vacuum advance quickly as throttle is opened....??
I will cover this at the begining of the next video.
Thank you AC for this new episode on explaining SU carbs👍👍 I’m a little bit confused on why ported vacuum gives better emissions on idle. I already read a lot about this but don’t see the benefit. My 1275 is fitted with a 123 dizzy and the recommendation is to run this dizzy with ported vacuum. I’m a little bit unsure. What are your thoughts on this Thank you 🙏
when engine idle - set AFR 14.6 ( lambda 1 ) - very good emission, for higher revs you have correction by vacuum and for HIGH revs mechanical correction by ignition system ( distributor )
Nothing to be confused about too much vacuum advance at idle causes incomplete combustion, and therefore higher HC emissions.
@@ACDodd thank you got it now 👍👍
Hey teacher, how long till the next lesson? And i wish my pistons in the bell housing were that strong
Filming part 2 today.
Never understood how the piston was pulled up. Now I do!!! Good video. Thanks
That’s just to point of this series it’s to explain how it works and help people make the right decisions when it comes to what they need to get their cars to run right
Great video thanks
I put a WB gauge in (Innovate or AEB are good) with my HIF44 - makes life far simpler. No guessing. Thanks AD.
That’s the point.
@@ACDodd Yup.penny has dropped for me.Thanks AC.
Thank you very much Sir🙏
Thank you for the presentation; do you use the wax jets on twin HS2's as well?
That’s a good question, and no is the answer
Great video 👍I’d love you to explain how the Hif choke works? Thanks.
the same rule applies
@@flapjck1 it’s not the same though, it doesn’t lower the jet as it does with the HS2/4… So what does it do?
@@mcmotors100 The adjustment mechanism is different. The principle of operation is the same
Do you prefer hs or hif as a general rule?
HIF is a better carb full stop.
@ACDodd Thanks. From what I read a lot of people seem to want to swap from HIF to HS, at least on MGBs.
Great video! If I’m understanding well, the momentary enrichment of fuel when opening the throttle happens because the RPMs go up faster than the piston goes up (because of the delay effect caused by the damper), thus the air velocity momentarily increases because the open cross section in the carb body is still small (piston still down) causing a higher Venturi effect in the jet-needle?
Yes
The enrichment would also happen in constant RPM situations(Or even with (non-extreme) RPM drops) too, the enrichment happens because the piston lags behind the airflow increase from opening the throttle.
You do do some pretty units. Is that some satin clean on the body?
No.
@@ACDodd I was kidding. 🤟 Are you using a tumbling media for body cleaning?
@ no tumbling
I do like your clearly explained videos. I've been in this game for a long time,but it does no harm to listen to the whys and wherefores . By the whey, I've throne away more than enough perfectly good wax jets in the past!
Excellent, thanks
Does the float chamber need to be mounted with a rubber mount between it and the carb body ? I was always under the impression that if they were mounted solidly then vibration could cause problems with the fuel supply.
Only rubber mounted on the twin carb models, can’t say I have ever seen an issue on the single carb applications using a solid mount.
@ That’s interesting, never knew that. Both my cars are twin carbs and it’s 30+ years since I have owned a mini so don’t recall how the float chamber was mounted.
Great video, one of the most confusing things learning when a piston flys up (thin oil etc) it leans, which I'll admit was not what I used to think due to thinking the needle was pulling out and therefore must be enriching. As a side request you once did a videos with a weight (lay shaft I think) to show approximately the drop speed on a carb, would you be able to show that test on this hs4 please?
Use the same test. It’s only starting point, and still maybe miles out for your actual car.
Im enjoying my home tutoring 😁 So interesting. Thanks AC
Clear and concise quality information.....👍