TJet Swap Part 1- DOHC Conversion - Big Turbo Abarth 124 

Thank you!

Tell me about it, I tried starting it for fun and found out that it won't. Now I have to proceed with caution... ugh...

Pull the spark plugs. Less stress on the starter motor.

Kris Jones It’s perspective changing when you look at this from two angles. Firstly, they really did very little to add Multiair to the TJet engine. Second, if Multiair was a better tech, why does the A500, 595, and and 695 run the TJet? It’s the Abarth halo car :)

@@PistonsAndPetrol Exactly!! That has always been my thoughts with it as well. If they keep releasing these amazing cars over in the EU why do we have a different version of it here in the NA. I just wish we could get the M32 Gearbox to fix in our frames, from the research I've done our frame rails get in the way, due to stricter front impact safety requirements.

Kris Jones Johnny and I have an M32 sitting in the shop floor. 👍

@@PistonsAndPetrol 🥺 Please tell me that you you plan on sticking that in an Abarth!

Kris Jones ☺️

Dominic Matraxia nothing. There’s videos on the topic.

Until both sides of the US/Canada border are open, there's nothing I can do. I'm Canadian, Tork is in the US and I am not a business. This is just my hobby so I'm not eligible to travel freely across.

@@PistonsAndPetrol oh man thats unfortunate 😔 i read through all the pages on the Fiat500usa forums and was eager for more lol

@@ChrisPBacon9 you and me both 🤣 Rest assured, the car and I will be back as soon as possible 👍👍

I haven’t done that yet. I want to make sure tuning to support it is available. This would not start without John’s ability to tune these ECU’s. The part of the video where the car won’t start is what happens with a normal tune in the car (stock or otherwise)

@@PistonsAndPetrol Ahh ok. thanks you for the follow up. awaiting the write up!

The ECU tuning to do this is incredibly complicated. The TJet cal is useless other than a couple small clues.

Needs the oil changed badly. It has heavily diluted E85 contaminated oil in it.

@@PistonsAndPetrol No wonder you had issues with your Multiair!! If you won't take care of your engine, how can you expect it to perform ??

Jason Jr Formosa dude. I change my oil every 2k lol. It happens fast.

@@PistonsAndPetrol Every 2k? That sucks.

Hunts By Chainsaw it does. That’s the downside of E85 mixed with Multiair. Now that it’s a TJet, dilution won’t happen as fast.

John Corona because the bottom halves are identical from the factory. Every part from the lower head down is the same part number as a TJet. A Multiair engine IS a TJet with a goofy actuator system strapped on top with limited lift that no aggressive camshaft could ever fix. That and mine is heavily ported and polished.

@@PistonsAndPetrol Ok, that makes sense. Now, why didn't you do this at the same time you did the built engine? FYI, I'm watching the built engine video while posting this.

John Corona I just hadn’t done the research yet.

The 1 gasket required was shown. Unlike the Multiair upper section, the TJet has a sealed unit that encloses the cam so there’s less gaskets and mess to deal with.

Are you talking about a factory abarth T-jet with GT1446 turbo, or a unopened engine, with a big TD04 turbo or what specificly ? As far as i know, on GT1446 you are at around 200hp, with TD04 240-250, and thats the limit, reliability will become a big issue after that , at least what i have seen on youtube. If you are planning to enjoy the car in the longer run, then building the engine is the only way to go, then turning up the power like Eddie did i would do it just lik that. First have the stock 124 multiair remapped, then probbably a TD04 turbocharger, or something more modern (twinscroll turbocharger, for better response) and in teh final engien stage, completly build and probbably a T-JET head liek eddie just did, which is amazing The goal would be 300ish HP, i would never max out the engine, as i will drive my car to work at least 1x a week in summer, and hit Track days and hill climb events on rare ocasions This is just my POV, you are free to disagree with me, but i would go for a reliable engine, that is gonna serve me and not blow up in a year. Have a good afternoon sir

@@klemzale5370 I'm talking about an unopened engine but with a big turbo, yeah building an engine is a good idea but I feel like they can take more. Imho for a fwd car like an Punto Abarth TD04 with NA 1.4 cams is the sweet spot

Here in italy , the land of abarth, yes there are some 300hp 500s or gpunto but they are very unreliable (with stock internals), they are good for some little pulls but not for track or mountain where you push the car for 10minutes or more.. with over 260hp on a standard engine it gests unreliable, it can last 50k km or it can blow up any moment I'm at the end of my build of a gpunto abarth with forged internals and also cams good for 8k rpm. About 270hp with td04hl (bigger than the standard 04L)

@@LorenzoClara97 from my experience t jet is a reliable engine even when pushed but gearboxes don't last long over 300hp

@@miralemnermina142 the m32 with the bearing replaced with the correct ones is very strong. Way better gearbox than the 5 speed on the 500, better gearing also. 300hp are reliable with forged pistons and rods, not on a stock engine

I ordered everything over from England.

Absolutely. It's actually a bit easier because there are available ECU swaps and wiring kits. The 124 ended up needing a full standalone ECU plus integration with both Mazda and Fiat CANBUS

Abarth 124 Spider QV Swap and Built Engine Updates ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-iWLiF4jADc8.html

I completely agree

155stw Abarth 595

The initial cranking was just testing to see if it would start before tuning. There are major differences in the calibration for a TJet and a Multiair. Engine is good and healthy.

I'm in Asia until May. Then we're finishing up the car 👍