Sam's Proper MX-3 - LT Turbo project *Parting out*
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Bar a little bit of a surface grind to the flanges the IHI to T25 adaptor block is complete :D
Final height is 38mm
Other good news! won what the Fella reckons is a recently refurb. Garrett T25 (new bearing, seals and wheels) for 75 quid on Sunday night, looks a bit ropey on the outside so will clean it up when it arrives and sort out new water/oil ports for it, and also "clock" it by rotating the housing's to get the oil drain right and the bottom and the turbine housing pointing somewhere nearer to the intercooler :D
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75 quid? Nice job! Good to see progress on the turbo part of this project. Have ya figured out how to wire up the AEM piggyback?
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Yep worked out to be 97 pounds delivered (My keyboard is all fuct up wont let me do the pound sign)
Aye we know how to wire it up its just a case of finding the right wires now, as no wiring diagrams exist for my car not even on autodata! will mean a day or two with the multimeter out in the car. I got to help my wiring man fit some coilovers to His Ibiza cupra then we should be on it.
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Sam a thought on when you wire your piggyback up. rather than wire up the piggy back to the Throttle Body for values, one thing that tends to work better is to wire in an RX7 MAP sensor and run your piggy back off of the MAP. it give is a lot more adjustability, and functionality out of the system.
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Thats a thought Josh, but the AEM FIC has a built in MAP sensor.
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@d532651584=youdirtyfox:
Thats a thought Josh, but the AEM FIC has a built in MAP sensor.
Well I guess you are good to go then :)
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Yes the on baord MAP sensor is good for 27psi and they supply you with rubber capillary line and T piece to tap into the inlet manifold, although me being me will change it for silicon line with a hard plastic over-pipe to go through the bulkhead and some nice black Y pieces as I didn't like the nylon coloured they supplied.
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Been a busy few lunch breaks this week trying to repair the broken stud and crack on the exhaust manifold. The old stud was hard as fuck to drill through!
Ground out the crack to a V and has been TIG'd using stainless steel wire, in hindsight should of really preheated as a few more cracks appeared in the weld, have no idea if this is going to work or not and dont know a way to test it. Might have to grind some more off and try again next week, if that dont work I'll be hunting for another..
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With the imminent arrival of the new tubby thought I better make a start at looking at the downpipe fabrication. Have decided to try and use these 2.5" stainless steel mandrel bends as that's what I had a few of anyway so got a couple more, and have found this great pocketed flange for a T25 from the US milled to take 2.5" pipe. While Im making this will also try and cobble together a decat pipe section aswell.
Gives a better idea of the shape I think needs creating..
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Are you going to go 2.5" the whole way back from the downpipe, Sam?
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No I figure for ground clearance and noise reason I'm going to taper it down to a full 2.25" system eventually.
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New Turbo arrived yesterday so I quickly stripped off the exhaust elbow to check for any cracks this time, absolutely none and zero shaft play either. It needs clocking, but I have to buy some seriously good circlip pliers first! Also came with a Turbo Technics emblem on the wastegate actuator(might of been rebuilt there or an actual TT actuator?) and an oil drain that I can probably modify and shorten to suit.
Also spent a few hours yesterday with the multimeter and some long reach probes checking a few of the wires on the
the ECU plug for the AEM, found around 75 percent of them so far, with them being colour coded and matching some
of the diagrams its making it fairly straight forward. We are going to hook a few up today and see if we can get them registering:D
Watch this space…
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Looks like ya picked up a right bargain there! Glad to hear progress with the AEM is going well.
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Yeah total bargain well happy! AEM is going great ta! its live and showing TPS, MAF, RPM, battery voltage & crank & cam on the laptop, just the injectors, O2 and MAP to go and we are done.
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Sweet! Awesome stuff, Sam!
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Cheers Jay I cant take all the credit for it though my homes Peter N Younger certainly knows His way round a wiring diagram or three 8)
007 (psi) license to turbo & kill clutches…
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brilliant work! Hope you've got notes of everything. Is it actually running the car now then? Fuel / spark?
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Cheers Marc! Yeah got oodles of notes that I need to make into a nice XL document or something. It was actually a nice enjoyable wiring day, usually having worked on French cars there a complete 'mare wiring, but nearly all the wire colours matched the schematics so that was a massive help :D
It is fully running all the time now with ign. on but my understanding of it is that all the fuel/spark tables come set to 0 as default so without changing any of those it wont be affecting anything as such just yet> Just running in harmony with the stock ECU :D
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Been busy lately configuring & clocking the turbo so the compressor housing points more towards the intercooler. It does spin without taking the circlip off just needed a few tap with a rubber mallet to get it going. This does now mean a new wastegate actuator though which is on order from the states, went for a 10psi unit with an adjustable arm to be able to set the spring pretension and a custom bracket.
Have also bought 2 x M14x1.5mm banjo bolts with a 10mm hose tail to use for the water, but I also managed to redrill the VJ water connection pipes from 12 to 14mm so I can use them if needed too. Oil drain I did modify then realised it was the wrong size hose connection so an oil drain kit with a 45 degree 12mm hose tail is on order along with 1/2 meter of stainless steel overbraided hose to connect to the sump and a 57mm-64mm silicon reducer for the air intake. also got an issue with the compressor flange to overcome as the pipe that came off the 200sx points in the wrong direction
so that will need a flange buying for or the existing one being used but with a more favourable direction on it.Will edit pics into this post as things start arriving :D
Compressor flange issue sorted! cut off both ends of the elbow and machined them flat again ready for welding.
Rear of Turbo water connection, 90 deg. bend to hopefully miss actuator arm.
57mm-64mm silicon reducer fits perfect to go upto the MAF
10psi wastegate actuator, with mock up of bracket needed.
Had a nice delivery from Oz. this morning, my adjustable wastegate bracket>
choice of 2 oil drain 45 degree bends now as the new flange fits the old piece I bought, last picture is the new 45 degree pieces I bought pictured with the 1/2" stainless steel braided hose.
Oil feed line parts:
M10 > 4AN oil connector for turbo feed out of block.
By dirtfox at 2012-09-154AN 90 Degree speed flow stealth elbow.
By dirtfox at 2012-09-154AN stealth black nylon braided line.
By dirtfox at 2012-09-15M11 > 4AN with 1.5mm restrictor for conection on turbo.
By dirtfox at 2012-09-15
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With warnings of a few car break ins round my area I wanted to get the AEM tucked out the way incase it was mistaken for amp.
Managed to squeeze it in behind the stock ecu and stuck it to the floor with heavy duty velcro, comms lead routed up to the back of the glovebox also.
Will put the side panel covers back on as soon as I have found the fixings again, as there are also some new MOT laws in force now I think concerning ecu tampering?!
