Prawn and BigAls A3 Track Car

Hi Daz, Mum/ Grandma passed away last week, so no comms for a while.
 
im really sorry guys
wasnt trying to be insensative.
my sympathy for you both
:(
 
It's ok mate. You wernt to know

Grandma was awesome, she had such a long and interesting life, and was such an amazing character. We will all miss her very much.

She is also, without question, where Dad and I get our love of speed from!



RIP Grandma xxx
 
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Thanks guy's.

On a funny little note, Grandma got pulled over by the police for speeding whilst driving her Fiesta, when aged 80. They thought she was a young tearaway. They had not banked on the terrier sitting by mum in the passenger seat which set about attacking them. A hurried verbal caution was issued and they made their getaway. Great.
 
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Too long without boost.

I was getting withdrawals today, so I bought one of these:

12622.png


Didn't fix it.

Sodd the exhaust leak, needed to drive it!





Was gooooood :)
 
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that interior pic looks cool!!
love your shifter!!!
so when you getting that hybrid dans working on?;)

joking aside whens you next track day?
2015??
saw jardo mention a track day soon but he is now selling up??
 
Was nice to take it out for a proper drive yea :) went for a proper 30 minute hoon :)

I don't think I'll be getting a hybrid any time soon, I'd love to, but it means injectors, maf housing, and undoubtedly a head build too to go any further. None of which I can afford!

I do need to get to the bottom of this over fuelling issue though. It's entirely possible that it's inherent in the mapping as I suspect the sytec was struggling at the time of mapping so fuel requests will be taking that I to account and causing the over fuelling now. It's always run a little too rich since fitting the inline.

Nothing for the car now until next war track wise. I'm going to Brands on Friday though for a bacon sandwich and a few passenger laps :)
 
ahh cool!
whos driving??
to be honest i dont think more power is something you need right now lol
and the work to go further sounds like a ball ache!
so its still rich?
is that of any concern or just not ideal?
2015 better ****** hurry up!!!
cant wait to finally get a proper go in this car!!!
 
So, I have finally made my way through the entirety of this truly epic build thread. It is so inspirational to practically relive the journey through these records. It's great to see the dedication and love that has gone into this car by you, your family and your friends. I hope it will continue to give you the enjoyment it has done for the past year, now that it's appetite for gearboxes and driveshafts has subsided ;-)

My condolences for the recent loss of your grandmother, too.


P.s. it's been ages since you've bought any wheels, what happened?
 
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great post!!
your are totally right its an epic build thread and if it wasnt for this thread and prawn i wouldnt be an audi owner anymore.
nor would i have any of my current set up which i love!!
this thread is simply fantastic its just a massive shame he's given up with it

"nudge nudge"
 
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He fixed his car up within weeks after crashing it, he doesn't give up ;-) It's funny how I'm hundreds of miles away, likely never to meet any of you, and yet these build threads make me feel like I sort of know the people that write them...

p.s. thanks for the sig quote, Prawn!
 
Prawn do you know what page number it is for suspension set up I'm currently looking into making mine nice and rigid just ordered the lcr hubs cast lower arms and quick rack looking at getting the camber adjustment top plates silver line is it on ebay next or and got arbs anything else anyone can add for a decent handling fwd or will that be fine for the daily :jump:
 
audi upgrades
Don't go black series poly bushes if your going to drive it daily, they are almost too hard for the track, that's my advice
 
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Nick_sheep said:
Don't go black series poly bushes if your going to drive it daily, they are almost too hard for the track, that's my advice
Click to expand...

What about regular powerflex ones? Do they affect comfort a lot for road use on a daily?

@Prawn, now what am I supposed to do at work, if I can't spend my time reading your thread?
 
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Crap, I totally forgot to mention how awesome it is that you share this with your dad. Mr. Al, I take my hat off to you. :thumbs up:
 
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Prawn said:
I do need to get to the bottom of this over fuelling issue though. It's entirely possible that it's inherent in the mapping as I suspect the sytec was struggling at the time of mapping so fuel requests will be taking that I to account and causing the over fuelling now. It's always run a little too rich since fitting the inline.
Click to expand...

The Sytec intank was struggling?

Sytec ITP331 OE , LPH
1 Bar @ 3.8 L/Min , 228
2 Bar @ 3.5 L/Min , 210
3 Bar @ 3.25 L/Min, 195
4 Bar @ 2.9 L/min , 174
5 Bar @ 2.7 L/min , 162
6 Bar @ 2 L/Min , 120
Lock Out @ 7 Bar


It should be good for up to like 400hp on its own
 
This is the drop in FWD pump sold by badger5 its rated to be able to happily supply 630cc injectors at 5 bar pressure.

(Accurate math is complicated shizzle including accurate bsfc and fuel pump losses etc)
 
I believe the issue is flow AT pressure.

Several people have had 400bhp from them using larger injectors at 3 bar rail pressure. Mine did 350 bhp on a 3 bar rail happily.

The tfsi unit pushed my injectors beyond their limits at 3 bar, so as a quick fix we added a 4 bar fpr, and the pump wasn't able to supply enough fuel at the higher rail pressure. Despite being able to flow MORE fuel at a lower pressure.
 
Prawn said:
I believe the issue is flow AT pressure.

Several people have had 400bhp from them using larger injectors at 3 bar rail pressure. Mine did 350 bhp on a 3 bar rail happily.

The tfsi unit pushed my injectors beyond their limits at 3 bar, so as a quick fix we added a 4 bar fpr, and the pump wasn't able to supply enough fuel at the higher rail pressure. Despite being able to flow MORE fuel at a lower pressure
Click to expand...

I didnt think old school bosch green tops were stable past 5 bar.
At static 4 bar pressure your uitting 5bar pressure on just actuator pressure aren't you.

Newer green giants are rated as stable up to 7bar but then you lose low end stability from the old Me3.8 drivers
 
antwan64og said:
This is the drop in FWD pump sold by badger5 its rated to be able to happily supply 630cc injectors at 5 bar pressure.

(Accurate math is complicated shizzle including accurate bsfc and fuel pump losses etc)
Click to expand...

not static pressure of 5bar it wont.
3bar rail pressure
 
The old green go and are 440cc at 3 bar. Running at 4 bar tail pressure adds 15%, so my they're effectively running at 506cc before you add boost.

At 1 bar the injectors will run at 5 bar, giving around 600cc.

600x 4 is 2.4L/min flat out, and the sytec will give that happily at 5 bar with 10% headroom.

Running at 1.5 bar of boost, so 5.5 bar rail pressure, the greens at 100% will be flowing at a rate of 630cc/min, so 2.52L/min.

Given the sytecs flow is 2.7 at 5 bar and just 2 at 6 bar, mid way it's highly likely to be less than 2.5, and this explains why the sytec won't fuel my car alone with a 4 bar reg :)
 
Worth noting that with the correct sized injectors, the sytec alone will happily fuel well over 350bhp at 3 bar rail pressure.

It's just me being a pikey and refusing to change injectors that's caused the issue!
 
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I got black series bushes on my r32 rear arb (they came with it from phils ron), so so so much regret. the rear end is crazy stable going fast through corners but when going over speed bumps etc the slightest bump through the rear is just noisy and unpleasant now. too lazy to change them though :p
 
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Prawn said:
Worth noting that with the correct sized injectors, the sytec alone will happily fuel well over 350bhp at 3 bar rail pressure.

It's just me being a pikey and refusing to change injectors that's caused the issue!
Click to expand...

PIKEY!

Does Nik not like tuning Siemens 60lb injectors? I know some people don't like them.

You could always be a complete pikey..... A 440cc tune for a 2.75" MAF should run 630cc injectors with a 3.25" MAF housing albeit with advanced timing, lol
 
Well that took some time, but I've gotten here in the end! All read front to back and I've learnt more from this thread than I have on any forum. ****** good build, a credit to your workmanship and hard work!

Now to go and buy a new daily and turn my 8L into a weekend toy. :)
 
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Thanks Gareth :) I'm amazed people are still reading it!

I've been a bit quiet lately, busy with other things, but hopefully progress and updates on the a3 will continue in the new year :)
 
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k04 hybrid and hardward done!
semi slick tyres done
ordering camber plates and sorting alignment asap

2015 is going to be a terrible track season for you
quattro FTW!!!!!!!

:whistle2:
 
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well i have this friend who is an awesome driver
he keeps threatening to take me out and teach me a little bit but im starting to think hes all talk ............


or possibly realises the mammoth task it will be to teach me how to drive lol


roll on 2015!!!! cant wait to get some footage for the site!!!!
a fast s3 driven by a clown vs you in your a3
think it will be an eye opener for most!!!
all in good fun of course!!
 
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So, as I've mentioned a few times, I've been pretty busy lately, and not really had all that much time for the A3.

Earlier this year, Tori and I moved house.

The new place had a garage, which was on my list of 'must haves'. But it was awful. and I don't mean a bit crap, I mean really, truly, awful.

Dad reckons Mosses may have bought it second hand at a car boot sail a few thousand years BC.

I reckon Moses then paid Stevie Wonder to put it up....



And this was the view from upstairs when we moved in:



Clearly, this was never going to be a suitable home for the A3, so something had to be done about it!
 
So, first job. The rattly lean - to on the side of the garage had to go.



Followed by the big tree that was in the way:





And already it was looking more open:



Next up was the roof!



Gone!



it felt strange putting the car back in the garage with no roof!





No going back now.......
 
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