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Adam's Fabia vRS Mk1 - 2.0 litre GTB powered

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Sitting in jogging bottoms in front of the telly is not healthy - out you go to do sth useful :)

How did it work with finding a leak in that core?

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  • Managed to get the ARP lube on all the bottom end and get it all torqued up this morning. Whilst I was torquing the bottom end down I had threw some parts in the wash off tank at work, mainly the s

  • More work carried out for the engine build over the last couple of days. The pistons have been fit to the conrods, not before weighing them all to make sure they are equal in weight. The block

  • Thanks very much Jars, tbh it was fairly simple to make, just faffing about to cut the material to the correct size and angles. Further progress update. I made a start on polishing the wheels up, I

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Haha I was warming back up after digging a few of my neighbours cars out.

Not done anything in regards to the core just yet, weather hasn't really allowed me to get to check it, but it's on my to do list

How tight was access to adjust the actuator?

 

What oil return is fitted? :)

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How tight was access to adjust the actuator?

What oil return is fitted? :)

The actuator isn't a problem, plenty of room to get in with a stubby 10mm spanner between the turbo and the bulkhead to undo the locknut.

The stop screw was another matter. I couldn't get onto the locknut with a spanner and undo it, even with a socket and extension, so I ended up pulling the actuator mounting bracket off to swing it out of the way for clearance then had to remove the stop screw completely due to some thread lock holding it together so I cracked it off the car.

John took a few pics of adjusting the actuator and stop screw at the weekend.

It's a standard oil return pipe that's fitted to it.

Edited by Southy

Ah right.oil return if you use a xman gtb on cast manifold is a pain,must be the tubular manifold is designed so the gtb oil outlet is positioned exactly where standard one is. :)

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Ah right.oil return if you use a xman gtb on cast manifold is a pain,must be the tubular manifold is designed so the gtb oil outlet is positioned exactly where standard one is. :)

Yeah that is the thing with the tubular. Although I did have a panic moment when I first fitted is as it wasn't in line and wouldn't fit, then I realised you could rotate the core section haha.

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Ordered myself a replacement 4bar Map Sensor from TPS ready for the weekend. Have yet managed to find/cure the potential boost leak due to getting ready to move house.

I was thinking of removing the MAP Sensor and using an airline with a bung made to suit the size of the hole and pressurize the system then check around everything for leaks, but unsure if this is a good or a bad idea to carry out. Any thoughts as to whether this will work or is not advisable to do?

Yeah you can pressurise the inlet ok.

Seen bungs made up that have a fitting for air line in them :)

If you do it and can't hear your leak spray a washing up liquid mix all over the cooler and joints and watch for bubbles. 

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Managed to get my car onto the rollers at work today for a dyno run to see where the figures stand whilst currently running 1.9bar of boost.

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Now according to the results it has made 251bhp corrected flywheel power, with 215bhp at the wheels, but after talking with a chap who know dynos and looked over the results, we think it has spun up when the car has come on boost around the 3k mark, this will explain the drop on the graph.

How accurate has that dyno been before? :)

 

Lot of transmission loss for 2wd, and torque figure is low for a GTB.

 

Be interesting to see how it compares to the groupb rr in a few weeks :)

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How accurate has that dyno been before? :)

 

Lot of transmission loss for 2wd, and torque figure is low for a GTB.

 

Be interesting to see how it compares to the groupb rr in a few weeks :)

Fairly accurate, both of my BLT engined Fabia's have run 154 and 152bhp, so pretty much where they should be, as I say though, I think think from looking at the graph the drop at 3k maybe caused by wheel slip when coming on boost, this may contribute to a silly high power reading when corrected thus giving a high transmission loss.

The dyno is also a twin roller setup, I know these tend to be more harsh on run downs and cause more drag as more tyre is in contact with the rollers than on a single roller and also on tarmac itself.

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A small update from this weekend. Managed to find time to fit my boost gauge.

The loom which plugs into the back of the gauge itself wasn't quite long enough to reach the headlight switch so out came the wiring and soldering iron to lengthen the wires.

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I ran the earth to the screw that holds the fuse box in place.

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The wires was then ran over to the passenger side where I have run the vac hose through a small grommet hole in the bulkhead.

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And the finished article.

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I also decided to treat myself to a new hoodie and a new cup for work haha.

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Nicely done. Like the routing of the vac pipe for the gauge :)

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Thanks Charlie, I was originally trying to route it up through the grommet in the top left of the bulkhead but couldn't fully reach up and that's when I spotted this hole slap bang in the middle behind the glovebox.

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Another trip over to Liverpool to visit John at Hidden Power, car is now running 2.5bar and pulls nice and smoothly all the way upto the redline.

Can't recommend John enough if anybody is after mapping carried out, he has transformed the car.

Another trip over to Liverpool to visit John at Hidden Power, car is now running 2.5bar and pulls nice and smoothly all the way upto the redline.

Can't recommend John enough if anybody is after mapping carried out, he has transformed the car.

Yeah he certainly puts the effort in!!!! :)

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He certainly does, car feels fantastic to drive and certainly is an animal, really did surprise the 64 plate 135i M sport the other night lol

  • 2 weeks later...
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Right update time. As some of you will be well aware by now Alex_e3 organised a Dyno day at Group B Motorsport in North Wales.

I was really impressed with the results that the car made, it made 263bhp with 375lbs ft of torque.

Bhp and torque graph.

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AFR graph.

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And here's a video of the car on the day

http://s264.photobucket.com/user/south001/media/Fabia%20vRS/20150228_111419_zpsrdeocipy.mp4.html

And also a few pics of the group of cars from the day.

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Awesome build there buddy will keep following this.

Is it me or the AFR map needs a little bit of TLC there?

Looks like it is running too lean between 2600 and 3000?

Looks like it started belching black smoke and was leaned out too much - guessing here of course :)

Was really good to get the AFR reading. I got it for my car as well which was standard and is similar shape but leaner. Feel a tweak coming on. :)

Did you get to have a look at mine too?!

 

What was your opinion on smoke levels by the way John?

Thought smoke wasn't too bad. Some I would of preferred a little less but then steve's golf went on. Lol

I have a vRS MK2 with CTHE motor so a "tad " different from your oil guzzlers :). To make any kind of half ar$ed assessment more date would be needed of course. One thing I know about diesels is that you do not lean out the AFR to get more power :). My guess was they were trying to avoid a massive torque speed and a smoke screen when that big turbo was coming in, which is all right, but it could to with a bit of TLC to make the curves a little bit smoother. I'd personally go for a flatter curve so peak early and stay there to the red line. But I might be talking b00110ck$ here of course :)

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