Recent Posts

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How to Guides / Troubleshooting / Re: S3 fuel pressure dropping on hard acceleration

« Last post by GVK on August 06, 2026, 04:49:57 pm »

Semi fixed, he's put VIS hpfp internals in to raise the high pressure,  the old piston was worn on the pump - still needs a bit of work on the map we think as it hits what I think is a boost cut and momentarily cuts power.

12

General Area / Re: Replacement Monza Alloys

« Last post by rdajks25 on August 05, 2026, 12:03:50 am »

Are you still looking for these?

Sent from my SM-A600FN using Tapatalk

13

Members Rides / Re: Edition 30 rolling resto.

« Last post by rich83 on August 03, 2026, 09:43:59 pm »

Plenty of life left in that subframe.....

14

How to Guides / Troubleshooting / S3 fuel pressure dropping on hard acceleration

« Last post by GVK on July 29, 2026, 10:35:47 pm »

I know it's not a mk5 Golf GTI but it's a TFSI , different badge , same sh1t

Mates got a 2008 Audi S3 8P. (BHZ) It's meant to be a stage 2 car but when you log the airflow g/s and do the calculation to the bhp, it comes out about 260bhp (it should be well North of 300bhp)

It's had a fair bit of maintenance in the time he's had it - carbon clean with manifold off, injectors serviced, timing checked both ends. Fuel filter new. Cam follower bucket that drives the high pressure fuel pump was changed Intercooler was leaking out of those stupid spring clip fittings so he's fitted an aftermarket APR intercooler to fix that.

All that's been done and it's no more powerful Sad if you log 115 boost pressure, it spikes to 2300mbar and holds just about a bar. (No wonder it's showing stock power) all the way through him owning it i've wondered if it had a weak turbo actuator.

Next thing was try another map so he's been in touch with Chris at Tuning Technics in London who has sent him a few maps to try with varying differences in boost pressure etc. Chris asked him to log fuel pressure and sure enough block 230 shows the ECU demanding 120bar and when on hard accel. the actual pressure drops right down to 35bar in some cases! When it does that the lambda control tries to add fuel but it can only try to add 25% when it drops to that low pressure it hiccups and goes into limp mode momentarily.

The low pressure readings seem to stay around 5 bar. So, we are wondering if it's a high pressure fuel pump failing or the low pressure in tank pump not being able to keep up with demand. Any ideas to this rambling?

15

Members Rides / Re: Edition 30 rolling resto.

« Last post by mk1mad on July 25, 2026, 06:10:58 pm »

Got the axle all stripped down.
Badly rusted, don’t think it would have done many more mot’s










Picking a replacement up this week, which will need stripping for powder coating.

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Members Rides / Re: Edition 30 rolling resto.

« Last post by mk1mad on July 25, 2026, 05:35:47 pm »

Dropped out the rear axle, it was pretty badly rusted, too far gone. I am  going to find a better  condition one .

Made up a couple of blanks to block off the brake lines, they came undone ok. Had to be careful dropping the axle.

Even though the car had had new arms I am going to fit all new super pro bushes.

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Members Rides / Re: Edition 30 rolling resto.

« Last post by mk1mad on July 25, 2026, 05:21:57 pm »

Got the sill covers off , back corners of the sills will need welding , fronts were better than I expected. Pretty pleased compared to some I had seen.

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Members Rides / Re: New Member - Newly Purchased ED30

« Last post by Graney_ED30 on July 24, 2026, 07:30:57 am »

Aye, it does seem to be more frequent these days, just times out when loading, once it is loaded it is fine but just getting there in the first place is the issue!

Mine is just about to click over 100k miles, it had 78k on it when I bought it, was a pretty clean example then

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Members Rides / Re: New Member - Newly Purchased ED30

« Last post by mk1mad on July 23, 2026, 12:43:44 pm »

I've  also been having trouble accessing and uploading, seems worse in the morning ?

Making some good progress, I think mine is going to take me a lot longer.

Out of interest how  many miles has yours done ?

20

Members Rides / Re: New Member - Newly Purchased ED30

« Last post by Graney_ED30 on July 22, 2026, 10:58:36 pm »

Took a while to get some updates on here because for some reason this site seems to pick and choose when it wants to load - not sure if it is just me or not!

So, been a bit slower going as I have had a few things on, but managed to get most of the welding buttoned up:

















Been and collected the bits from the powder coating place, they have come up really well (will add some pics at a later date)

Ordered all the parts/bolts I can think of from TPS, I can still get the new rear brake lines but the fronts are discontinued 😭 I have some pipe that I can use to make them up so not the end of the world!

Also need to get the rear calipers blasted - I have access to cabinet but it has been out of action for a bit, but it’s up and running now so shouldn’t be long for that, got a rebuild kit from Big Redd so gonna get those done, never done a set before so looking forward to that

Once those are done and the rear lines are fitted (they go under everything else) then it should be ready to start fitting everything up!