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Apr 22, 2024 13:18:06 GMT
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Not only am i amazed at the amount of thought, design and work you put in to it, but also that you're able to leave it at that.
I would have to hook it up to the engine to hear it immediately.😅
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Apr 15, 2024 11:29:02 GMT
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A friend had an Alfa 75 with really rusty floor parts and sills. The problem was that he couldn't weld and knew nobody who could help him. He covered the holes up with some layers of masking tape and then sprayed the entire floor of the car thick in underseal. Looked great.😅
The MOT guy complimented him on the state of the body..🤔
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I turboed a '67 DS Citroen which works great, and I went for a small turbo. Everybody told me there was no point in going that small. But I paired the turbo max power to the one I was targeting for the car. And I like it ! No lag, boost everywhere I need it in every day use. I'm sure I could make more power with a bigger turbo past 5000 rpm. But I'm never there in real life. And that would come at the cost of turbo lag in the power band I use all the time. A bigger turbo introduces less thermal stress in an engine. A smaller turbo acts as a barrier for the exhaust gases and creates more combustion heat. These engines tend to run out of steam higher up the rev range and almost drive like a diesel with a lot of torque down low. Modern petrol turbo engines are mostly build that way. They tend to boost almost from idle so the driver experiences almost no lag. Safer for most drivers but not much fun anymore. If your running the turbo to the max of it's range it's not very efficient anymore which could also mean you're running higher intake temps all the time. On a very hot day that could cause problems. I was adviced by an expert to always keep some room (like 20%)in the power range above your power goal. Same goes for fuel injector and pump, always go bigger then needed.
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Does your wastegate seal/close 100%?
Have you tried disconnecting the actuator to see if your boost rises above wastegatepressure?
Have you checked opening pressure on the wastegate?
A GT3582 might be a bigger turbo but you also have a bigger displacement engine so that would help spool.
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Mar 15, 2024 12:56:53 GMT
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BTW we need more info on the LT as well! That LT belongs to a customer of my mate. It's a 4x4 that was turned into a camper by the owner. It had a 6 cylinder petrol engine which was very thirsty and not very powerful. Note that this thing weighs 4000kg (8000pounds) empty and you need a lorry license.. My mate has converted it to a 2.5 TDI 5 cylinder engine with a mechanical pump. It now has something like 150bhp and way more torque. It drives very good now, quite pokey. Gearing is a bit short but that's not really a problem as you're not allowed to go faster than 80km/h (55mph). Conversion has been checked and approved by the RDW( Dutch governing organisation) this week so the owner can collect it this weekend. I expect him to be quite pleased with how it drives now.
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Mar 14, 2024 17:28:28 GMT
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A mate brought me another ECU. With that ECU the main relay and fuelpump relay were activated on ignition. The ignition warning light also comes on. But the coils don't fire due to the immo. I had the immo removed and replaced the fuel pump that didn't work and now it runs. So the original ECU was the problem somehow. Glad to have it running. qilin , thanks for brainstorming with me👍🏻
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Mar 14, 2024 17:20:06 GMT
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A friend brought another ecu. Had the immo deleted on it and put it in het car. Changed the fuel pump and put fresh fuel in it. It coughed a bit and wanted to start. Put 8 new plugs in it and it started and idled. I don't want to take anymore chances with this old belt but it seems to run fine. Will swap the timing belt and do some maintenance on it now. Also need to change the cylinders on the clutch. Pedal was stuck.
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Mar 13, 2024 19:27:22 GMT
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How do you explain that on these Motronic the fuel pump start up on ignition only then?
There is no signal from the tdc sensor at that time but the main relay and fuelpump relay need to be activated for the pump to work.
Normally these relays 'click' when the ignition is put on, the fuel pump relay deactivates after a few seconds if the car is not started but the main relay keeps activated and provides power to the coils and injectors until the ignition is switched off.
I checked the inertia switch for the pump and it works.
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Mar 13, 2024 13:48:49 GMT
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On this version the main relay is also ground by the ecu.
When you turn the ignition on it should activate the main relay. The fuel pump runs through a fuelpump relay which is switched by the main relay. Originally the pump primes a few seconds when you turn the ignition on.
Yesterday i got another ECU. With that ECU there is an injection light that comes on when the ignition is on. It switches the relays. This ECU will now be made immo-off and I hope that solves it.
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Mar 12, 2024 15:22:39 GMT
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I bought it from a guy I know. He bought it in a batch of cars and parts from someone that has deceased. So the history is unknown. Last APK (mot) was in 2012 or so. Car was cheap so still interesting for me.
It needs maintenance like timingbelt, oil, filters etc. Tyres are gone. Brakes need a fluid change at least.fuelpump seems stuck as well.
But the most annoying thing is it won't start. Engine turns over but there is no spark. Had the ECU immo-off'ed due to a keycode issue but that made no difference. Seems the main relay doesn't get switched by the ECU.
The plan is to look into this further this week.
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Mar 12, 2024 13:53:52 GMT
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I believe they are. But not 100% sure..
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Mar 12, 2024 12:26:09 GMT
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Mar 11, 2024 20:17:44 GMT
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It's going way slower then I would like but there's still progress. So I guess that's good.
I'm starting to walk with 1 crutch, I've started driving again and I'm slowly getting out of the house a bit.
To get myself mobile again I've bought an Alfa Spider from 1997, 2.0 TS. Small project as it's been stood for like 10 years and it's not running.. thought it would be a quick fix but it's proving to be a bit more difficult then I thought.
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What about the grit they use for blasting?
Crushed glass also comes to mind.
Interested to see where this goes as I also thought about this before.🙂
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Hello,
As a temporary daily I've bought myself an Alfa spider 2.0 16v TS from 1997. This car came through an estate sale and has stood a few years.
I now have an issue getting it to start. I've got the ECU immobilizer disabled but it won't fire.
It's got a Motronic m2.10.4 injection system.
The main relay gets a direct 12v on pin 30. Turning the ignition on sends 12v to the ecu directly and also powers pin 85 on the relay. To operate the relay it then needs a ground on pin 86 and according to the electrical diagram that should go through the ecu. Would I be correct to assume that supplying the ECU with the ignition 12v it would need to switch on the ground for the main relay?
That ground seems to be missing at the moment.🤔
Unfortunately it's got an older style OBD which I can't read at the moment. Adaptercable is on order to solve that.
Has anybody got some deep understanding about these older Motronic systems?
I'm starting to wanna torch the car...
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Why not fit the lift pump from an e39 530d or something alike?
E39 530d also has a neat little fuelcooler. But for real cooling you might look at a small oil cooler or perhaps an airco condensor.🤔
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The other way around seems better somehow, poking a hose in a hole.🤔
These little setbacks are all part of the game. If it was easier everyone would be doing it. The harder it is the greater the satisfaction if you succeed. (🤐)
We look forward to the next rolling road session..👍🏻
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Nice, my mate has a few LT's. Mechanical a bit agricultural but very sturdy. They do tend to rust a fair bit.
What engine does it have? 2.4 (turbo) diesel? 2.0 petrol is not our favourite, very underpowered and very thirsty.
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Feb 13, 2024 15:23:53 GMT
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Yeah, I get that for the LT. But for my own cars that are capable of a bit more speed I kinda like the centering on the hub centre.. 😉
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Feb 13, 2024 10:47:13 GMT
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It might not be supporting but it sure is nice if your wheels are properly centered to prevent you shaking out of the car at speed...
VW LT mk1 uses steel wheels and the version with single rear wheels don't even have a centering part on the rear drum. No supporting there for sure.
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