9000rpm on the dyno... and then it broke - Ferrari engined Alfa 105 Alfarrari build part 200
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Wow, sounds absolutely fantastic! My Fiat 2300 with 220WHP goes hard enough, can't imagine what 300+WHP in something 300kg lighter is going to go like, it's going to go HARD BABY. Congratulations mate, you have to be stoked with that!
Marco, where are you located. Just another Fiat fanatic here.
@@JohnSmith-hr3gv Wollongong
Used to get dropped to school in a 2300 What engine you running for 220Hp?
@@joey243win ex Group N Lancia Delta 16V turbo rally car engine. Poor thing is back off the road again after destroying another gearbox and diff. Those things put out heaps of torque.
now that’s a spicy meatball!!! Damn ours just had the straight 6 in it haha Had a sedan and a wagon for parts Then a few 130 sedans and coupes too
The trigger wheel issue isn't the end of the world and you've got the fix, so what a great result! The peak power at the wheels, with probably more transmission losses (vs the Ferrari's transaxle) is also terrific. Love that you found the cross over point on the dyno and it's still very effective even after the plenum mods. All told, you've got to be chuffed, well done mate!
probably the best mechanical issue it could have been. probably means engine out, but at least its a cheap/free fix and not a rod out the block or something.
Yikes, that title gave me a scare! Glad it's a relatively small fix and look forward to the next steps. Congrats on cracking 300HP at the wheels too.
He click baited......yeah, he knows the game.
After putting it off for far too long, seeing the "finished" car debut recently made me finally start on the build series. I'm about 60 episodes through at the moment but wanted to come here to say how educational and enjoyable it has been so far! I'll keep working through and eventually get back here to watch this one in its entirety.
Generally I wait until a car is almost done before watching. I waited 4 years before starting Binky. I've followed this one since the beginning though.
Sounds so sweet at high rpm! Might be worth balancing the crank pulley and trigger wheel together, or even lightening up the trigger wheel a bit if you can. Awesome result, and there's more in it for sure.
Congratulations! A great result. Regarding the sheared bolts: you may find that you have a better outcome here by having one or more tabs that physically couple the toothed wheel to the pulley. Bolts don't love being in sheer, and if they snapped it may be that they're unable to clamp the surfaces together hard enough to create enough static friction to overcome inertia when the engine is rapidly changing speeds, giving the toothed wheel a bit of space (i.e. the difference in diameter between the bolt threads and the holes in the toothed wheel) to accelerate separately from the pulley and then have a near-instantaneous speed-match with the pulley, which force is transmitted completely by the bolts. This is what caused the infamous VANOS pump tab failures in the BMW S54 - not bolts, but a too-large size difference between the tab on the pump and the holes in the cam gears. Tightening those tolerances seems to resolve it. YMMV - I'm not a mechanical engineer, just a shadetree fabricator who has also learned this one the hard way. :) Good luck with the rest of things - it's a beautiful car, and _what a noise_.
You sold this episode with all the drama of a soapie cliffhanger! You had me worried that “broken” was terminal, so hugely relieved that it’s a fixable issue.
I've been lucky enough to drive a 360 for several times, and this motor does not stop till you reach the limiter (8700rpm I believe), exactly like we saw on your dyno runs. Ferrari definitely have done their homework on how to make power by rpm.
So good to hear it run and scream all the way to the high RPMs. Such a great project coming to life !
Great job mate, she is an absolute beauty. The bolts probably failed because you welded them. A bolted joint is held together by friction caused by the clamp load, definitely not through shear in the bolt itself. Welding it once it was together just destroyed the clamp load while simultaneously destroying the heat treatment in the bolt, weakening it. Just three M6 cap head (12.9) with loctite and about 16Nm - and no welding!! - will do the job fine.
I’m just here to feed the algorithm … Patreon for the win. Congratulations, it sounds epic!
Thanks for the support mate :D
Car sounds AMAZING, Jeff!! ' Title had me worried for a bit but it sounds like a relatively simple fix. Glad it wasn't worse damage. Can't wait to see this ripping up the streets PS: Those rear straps looked really sketchy. Car looked unstable on the dyno. Maybe beefier ones next time??
Jeff, you probably have it covered but once running and tuned change the oil and filter, with any build there will be sealer, dust and debris in the engine plus the over fueling will have washed the oil. 👍
Brilliant job. The plus side is the power curve is essentially a straight line so max kw equals max rpm, which sounds fantastic.
304hp while still running rich with little timing, definitely leaves room for more hp, but honestly with the headers restricting it a bit, and chopping the inlet plenum length, it still makes solid power, I reckon on the final dyno it'll make 320-330hp With everything in the safe zone, she's gonna be a handful to drive, well done Jeff 👌
well glad it was only something minor you broke on the dyno... from the headline i was worried you'd put a window in the block.
Haha. So was I!!
An awesome build, Jeff. With fabulous sounds emanating, and the beautiful 105GTV body, I'm looking forward to seeing the complete package on the road. Well done, sir!
Just smashed 3rd 'thumbs up' on the best DIY car channel!
Great stuff Jeff. I guess you can focus on getting it engineered now that it is drivable and head back to see Adam after getting some miles on it. Awesome work! 🇱🇺
I shat myself when i read the title. Luckily not as bad as i thought. The car sounds fantastic screaming at the higher rpms
Congratulations on a relatively successful run on the dyno. The general rule is that power measured at the wheels will be 15-17% below the power quoted by Ferrari as 395 hp - which is the maxium power measured at the flywheel. The aforesaid (15-17) figure is somewhat 'rubbery' because not manual driveline efficiencies and test dynos are the same. What's more the atmospheric conditions will also affect the power measured. I understand the proposed replacement timing gear will be fitted with more fasteners, however it may prudent to ensure the timing gear is balanced - as a relatively small inbalance force will not be trivial when the engine spins to 9000+ rpm.
This is awesome Jeff, I've driven some fast cars the craziest was an Mazda R100 with a 13b with 315kw at the wheels. Reved super high, weighed around 800kgs, it was a handful. The alfarrari sounds better in my opinion, but it's going to be a handful. Great work mate, i I hope to see it in person one day. Hands down my favourite build on KZhead.
You're almost there, "they said it sounds lovely ". Very well said Mrs Jeff.
Silly question, but were the M5 bolts 10.2 or whatever the metric equivalent of Grade 8 SAE is? I wouldn't think there would be rotational stresses, so you may want to look at the balance on that trigger wheel as silly as that sounds. It would be a shame to see the engine seriously let go after all the work. So very glad it was a minor issue. And it sounds *amazing*.
He said he welded the bolts. My guess is a whole bunch of heat into a relatively tiny area of an M5 bolt head weakened them at the shoulder.
Adam from JEM is a great tuner and great bloke you made a great choice can’t wait to see the final outcome 👍👍👍
my car there now
Sooo relieved that it wasn’t a catastrophic failure, having followed this build from the beginning I felt as I’m sure do many as if part of me is with it. I can’t wait to see it finished and on the road. Keep up the good work.
1801... From Italy Jeff.... Don't worry... work it's hard... But at the end it's more satisfying!!!!😂😂 We want you on street.... Greets from Italy an Italian former mountain trooper Alpini 🇮🇹🇮🇹🇮🇹🇮🇹🇮🇹🇮🇹🇮🇹🇮🇹🇮🇹🇮🇹🇮🇹
Man I freaked out when I read the title, I'm really happy that it's a "simple" fix (we all know that an engine off is daily routine for you!), the power is strong, especially for that car. With a finer tune it'll run even smoother, looking forward to see it finished.
Mate - I am so happy for you! - your excellent creation has really come together and the fruits of you labour are paying off big time - well done!
Superb job, mate. Glad it wasn't a catastrophic failure. 3x5mm bolts, yeah nah, nah. 🤣This beastie is going to eat rear tyres, what a machine!
task for the next build Jeff: Get the tune much closer yourself, before going to dyno. There's nothing magical about a dyno. Reading the datalogs and tweaking the tune yourself is a great way to 'de-mystify' the process of tuning and you can definitely do it!
What a releaf that is not a mayor engine blow out. As I have had on dyno with my former Giulia Super. This is perfect videos on sunday morning from Europe/Sweden
The sound of that beauty gives me chills ! As Italian and car Lover I couldn’t be more excited by your project ! Great Job !
Pitty you can't put the trigger wheel on a camsharft. It would spin as 50% of the crank and may be better suited as usually they are unbalanced where the missing tooth is. Most brill a hole 180 from the missing tooth to balance them.. but the little pulley may have a few issues running on the track at 9,000 rpm and may be a lot happier at 4,500rpm.
I had a '73 GTV 2000 I think it was, same body and the 2 liter dohc engine, in Los Angeles back in 1986 to 1989 I think. Rear control arm bushings were shot, throw out bearing went out so I changed that in my appartment building garage. The car was fun but exhaust fumes came throught the trunk into the cabin, brake discs were warped, interior was in shambles, all things had I been older I could have easily fixed. I loved its handeling but later became a Porsche 914 fan. This little Alfa looks and sounds fantastic, happy it was just a minor malfunction.
I am so glad that the break was something that was found and external to the engine, not the internals. I was worried you might be giving us a video like StanceWorks. Congratulations on an awesome build. Looking forward to watching you fix it.
Whew! Glad it's an external issue and hopefully easy to repair. Will be interesting to see the fix. I can imagine balancing will be a factor for future longevity. 9k is hard on everything. 👍🏁
I'm very relieved the failure was external...I'm afraid to say I immediately thought the worst when I read the video description. You do have a lot of bad luck some would say. Happy it's not catastrophic. Beauty car bud.
Nice scare! My bike ran more than a year with a 36-2 trigger wheel bolted to the rear of the original flywheel with just 4 M6 bolts, no problems. Only took it out to replace it with a lighter set up
Amazing to see the car on the dyno. I've been following your channel and watched every episode since your Harry build started. I wish you the very best and keep up your fantastic work ! Hand down from Sweden ! 😊
So a little wiring and a fix for the crank pully and trigger wheel given the amount of work you put in is minor, the sound was great and the power sweet the Alfarrari is going to be a superb car to have fun in and to road trip.
Happy for your success and quick diagnosis of the problem Jeff, Congratulations!
Almost there Jeff ,good luck with the fix
Please make sure that you send the reworked pulley out for balancing.
Beautiful! This is looking amazing… been watching your progress on this and the Boxster for a while.. congrats
Jeff the car is pure class!! Outstanding job chum. One thing and honestly i can not fault any other part of the car is the RED HEAD...... The engine covers should definitely be painted crackle RED. . Health to enjoy! It might just top the Porsche.... 🤔
I bet you are relieved it is a relatively minor issue and not a major engine disaster! Keep up the great work!
Fantastic result. Hope the fix isn't too much hassle. Looking forward to next run on dyno.
I was going to say you ran out of petrol! 😂. Happy that it’s an easy fix! 306 HP! That’s fantastic!
I'm so pleased for you at having got to the final stretch and with everything going so well! 😀😀 It's a fabulous achievement. The video title had me on the edge of my seat until the reveal; so glad it wasn't serious. I'm a bit worried by that trigger wheel and it may be worth getting someone else to make one up (and balance it). I assume it's steel. Maybe a better grade of steel or even make it smaller, if that will still work. Those centrepetal forces must be getting very high at 9k rpm.
Pheeew...! Thank God the issue was located, and maybe relatively easy to fix.. That little yellow beast looks incredible and sounds SO fantastic.. Cant wait to see the result of some more fine tuning.. Following from Denmark
That was quite the thrill, lucky outcome
awesome work!! Looking forward to seeing the Australian Tour!!
Jeff, this is such a great build. I’ve been with you from the start on this rusty GTV, joining as a Patreon supporter once I saw you building out your tools on hand, as I have done, too. I race a very much lightened ‘72 2 liter GTV that followed a ‘65GTA Stradale given up when our kids were little. Currently, a looming project isd a rusty street ‘74 GTV that I put 75,000 tough miles on and will be repairing with some of the techniques you utilized in your repairs. I really like all your mods on the body, the oil tank location, the raised rear floor over the exhausts, all of it. I’m too old and busy to take on the engine change mods but will keep a 4 cyl, not having the time to do the Ferrari route as you have done just so well. My street use car is an early Honda S2K….. Now, important: I have thought about your timing wheel coming adrift. It looked to be a heavy steel part, thus high polar mass. Tied to the front pulley, normally the location of a vibration damper on a V8, I can understand the shearing of the 3 little 5mm screws holding it in place. Possibly, you should cut out as much mass as you can. Because you will need the teeth at the perimeter, that part of the “gear”, the outer most part will constitute a sizable polar mass, so it may be a bit of a challenge to mount it on the front pulley. The engine crank may be rotationally flexing quite a bit at different rpm ranges, thus the fasteners will be fighting that. And you don’t want to upset the crank’s inherent rotational strength… but if you imagine that by adding a heavy gear to the front pulley you have modified the natural frequency of the rotational mass - spring system, and that the crank might wind up and relax at a number rpm points in its rev range where it will have different amplitudes of rotational flex, thus natural frequencies of higher rotational flex amplitude; you could break the crank!! Ya don’t wanna do dat…. I suggest you talk with a good mechanical engineer about this and make sure you don’t over-stress your Ferrari crank. My guess is a very much lighter toothed wheel will be the solution, but the math may be worth going through to know what to expect. V8s with 90 degree cranks have vibration dampers (rubber torsional absorbers) on their front pulleys. Not sure about your 180 degree Ferrari crank.
I’m always waiting for the big one after I finish a car. Glad your is a easy fix. Inside the engine would have been bad. Thanks for sharing Jeff
so glad it wasn't a catastrophic problem, really pleased for you Jeff- should be an absolute blast when its on the road, congratulations 😎
Great talking to you today Jeff, car is sounding sweeet!! What an awesome build. Can’t wait to see it at Cars and Coffee. Cheers
For a build as big as this car. That’s a pretty small problem. If you can, fit bolts with a shank on them so where the bolt passes through the sheer point, there isn’t threads in there. Also use a drill that gives you a good tight fit with the bolt. That shoul stop any issues with the bolts shearing. Really does sound awesome. Well done Jeff
Great result mate, congrats! 👍👍Thankfully it was nothing terminal. Loved the build the whole way through!
Hey Jeff, I have been watching this beautiful Alfa coming together over the last 4 years. You must be super chuffed. You inspired me to get stuck in… Jonny Smith ‘barn found’ my dads old car (it aired yesterday on latebrakeshow) and the carbs were shot, so I thought I’d give carb rebuild a go on the kitchen table. Very satisfying. Now runs but needs a skilled pair of hands to tune. Thanks for the inspiration and what a great car you have. R
I can swear I heard that same metallic clanging sound in one of your previous videos when you were backing out of the driveway.
Great work, it sounds and runs amazing!
Wow thanks jeff its the first time anyone has explained whats going on during a dyno run
Phew! Had me worried there! Glad it’s a ‘simple’ fix. Can’t wait to see it back on the dyno and then out on the road, Will definitely be a Beast to drive! 😮 Well done Jeff.
Fabulous results Jeff, a job well done to this point, minor glitches but we can't wait to see it running on road.
Mate what a sensational build. Wish you all the best with it
Looks awesome, such a pretty looking car, machined up a trigger wheel for my turbo mini, I lightened the harmonic pulley and then had the whole lot balanced, it might be worth having it checked for balance before you bolt it back on, the vibrations at that rpm could be damaging if it's out of balance, awesome result after all the work. We'll done mate. Cheers Marty
Just listening the engine you can hear where she gains and then plateau's. Fantastic effort and you have a Dyno team there for sure, on the current 3 bolts up to 6, if you have the room for 9 I feel you'd have a better balance, 40 degrees per bolt would be a good balance. Cracking project Jeff!
I'm glad to see that it wasn't a catastrophic failure. Btw, it's never too late for a Honda K-series. ;)
Absolutely the BEST build on KZhead 👍👍
what a sound and power, it was fun until it went wrong. I was shocked and felt so bad for you, fortunately it seems that the problem can be solved so I hope to see that the engine is running again next week, good luck 🍀💪🏻
Yes, Jeff, what a sound. Love it. Sounds amazing. Minor hic-up. At least it's not serious. Hope by next week you'll have it sorted.
Sounds amazing Jeff, just a minor setback thankfully, you could spend hours walking around it just admiring its beauty, Great work mate 👏🏽👏🏽👏🏽
Hey up mate been waiting for this one, the sound suits your car perfectly i can only imagine how many smiles per mile its going to be. Well done
stunning craftmanship and knowledge. period.
Love the positivity. Small setback for someone like you.
Brilliant power figure! Almost perfect for a little car like the Alfa. It is also gorgeous looking car now I've seen it out of the garage. Well done!
Awesome 👍🏽👍🏽 Great Jeff I'm getting back on to my car been side tracked as fixing a caravan it's going to take longer so will leve until later , but be good to get my car sorted it's been to long lol 😕👍🏽👍🏽
Man that thing is a beast! Sounds amazing! Can't wait for the next vid
So glad nothing catastrophic happened here Jeff! Well done indeed it's going to be a rocketship. A fully built Alfaholics Giulia which they are charging circa £200k plus Vodka And Tonic makes in the region of 290bhp with an extreme tune on the original Nord motors. Brilliant build Jeff! When I am down under next I would love to see it. A brother's love from the UK! Respect!
Nice work Jeff. Can't wait for the next dyno sess!
Sounds great Jeff. Keep pushing your nearly there!
She sings. ❤ What a glorious sound on full chat. Very much looking forward to some epic onboards and drive bys. The Alferrari is a magnificent creation Jeff. You have a right to be proud of yourself.
Congrats Jeff absolutely made up for you, all that hardwork has paid off and the results are amazing!! Shame about the Timing disc but another Day on the Dyno is always entertaining especially with extra Horses to be gained, even when you have to many😅 Have you thought about setting up a Switchable Traction Control which can be adjusted 1-10 on a Dial switch so when it gets a bit to leary you can dial it back a bit. Looking forward to see the next dyno session at 9k 😊
Great job jeff
this engine really likes tuning so considering more rpm than stock with a perfect tune i'd bet for 340hp at wheels, this is going to be a rocketship.
So happy it’s just the crank sensor pulley! It’s didn’t sound catastrophic but, sometimes that’s the way it is. Nice result on power figures too! This is going to be a fun little car!!!!
I so pleased it was only a simple issue with the crank sensor gear. This is an amazing build, I have no idea how you will top it with the next one.
Sounds killer brother Jeff Well done again Really happy for you Top job
Congrats and glad it is something relatively simple to fix.
So happy it wasn't big failure! Sounds so good!
Great job. Congratulations.
You've created a monster! Bravo!
An afr of 12 is still very safe. Turbo afr target of 11.5 is a goal. There could be 20hp going from 12 to 12.5-13. But the tuner is the professional. That was pretty successful considering it has 5 road kms. No sync issues, no leaks. Great work
Unreal ! An Alfa Gt body with 300hp at the wheels !!!
Did wonder about Dynoing befor putting some miles on it… sounds great!
Sounds absolutely incredible!!
Jeff - Glad to see it will be a relatively simple fix; and just when we thought the engine had gone in for the last time, LOL. You have a high performance one of a kind automobile and working through initial setup problems and minor breakages is part of the development process. Make sure you wear your brown pants the first time you go full bore on the track, this is going to be a beast!!
No need for brown trousers, just go before you go......
Rorty exhaust sound. Lovely.
Sounds great, also consider heat expanding to gear, could be part of it