All Things Mk5 > Performance Modifications

Whos got a hybrid??

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Statller-Stevo:

--- Quote from: vRSAlex on August 26, 2012, 05:23:49 pm ---You have to try an 044 at some point.  Won't work with the stock pump ecu but on a 3076 it was still holding 6.5 bar at 7.5k.

Is the walbro working ok with the stock pump ecu and can it run the tank down to empty ok?

Need to check my logs on the injector duty.  Can't remember off my head.  Apr fuel pump deffo helps ove the autotech imo.  They always seem to sustain slightly higher pressures.  Mine is an fsi.

Do you have an true egt sensor and gauge on your car Steve?  I still find it amazing that the tiny k04 hotside will flow 500 bhp without getting too hot, even with the top part of the runners being opened out.

You say twin pickup, do you mean you are running the suction jet pickup that keeps the basket filled?

--- End quote ---

The cars maxed out AL IMO it's not safe to run the stock motor like that for long your asking for trouble it was just an excersise to see the absolute limits of everything as were using this car to test for the next project were building
Loba's trying to find a good cost effective solution for better headers right now for different set ups, they are already designed in CAD from what I've heard I guess that's the next stage for them, I think then it will be limitless power wise whatever you want etc that's what we hope to use on the RS motor
The Walbro works fine with the pump ecu it's been good for nearly 3 years now no problems at all, Infact the whole motors been good no major problems with anything really, EGT's are between 900-990 at high load so easily within safe specs still although we know the meth helps out to keep them down, (intakes 35-38 degs) the problem now is high load high gear fuel shortage at high rpm (this problem is at the 500hp level no problems when turned down to 450-460)
Were are still running the Auto-tech but Simon is sending us one of their rail pumps to test on this app after the holiday
How do the Bosch pumps work regards the return less set up ? Or is it an 8 injector set up ?
I know a few are using the V10 RS6 lifts now, I've not seen one yet, I might order one in to take a look

vRSAlex:
You measuring the egts with a standalone sensor and gauge?  The med9 only has projected temps.

I've got three walbros in stock, but I would rather run an oem style pump that fits perfectly.  The 044 just runs constant pressure as its full 12v.  The return system never had any issues.  Similar setup is used on Adrian Autosoft's S3 with no issues too.  Only thing I can see is it putting more strain on the fuel filters return.

Fueling is perfectly fine on my car.  Trims and lambda is spot on.  Wmi will be going on soon once the larger tb turns up and I've finished fabricating my new high flow and well fitting intercooler to tb pipe.  :happy2:  I don't max out my car looking for numbers, but its at the higher level and safe.

If the rs4 injector file is the same as the one I've seen before then it was originally used in the US when they couldn't get hold of s3 injectors.  Does allow extra head room which is nice, but its crap on fuel economy iirc?

You saying that your car is currently maxed?  Sounds like you have one of those engines that just won't give up.  Managed to give mine a build last year with rods and headstuds.  S3 cams were added a few months back.  Ported head and full ferrea valvetrain planned for the end of the year.  Just need a cluster that revs to 8k.

Very interested to know if the rs3 or rs6 pumps are any better.  Apr don't seem to think they are and just use stock pumps on their stg4 setups I believe.

Much more than 500 then you will be looking at a different inlet and some extra injectors!

Tfsi_Mike:


Iirc MrP's lpfp was a late revision 2.0 Tfsi one and held good pressure

daz_pd:
@Statllers, can i just ask, have you guys done much with the 2.0 TSI engine yet?

Statller-Stevo:
Yes I've become attached to this particular motor, she's a good en bless, uses no oil at all (maybe Hurdys was built by the same guy!  :smiley:)
Ive never really tuned a high comp motor beyond K04 yet we've always stayed with the low comp K04 motors due to general superior head and block strength, I run the boost controller maxed all the time on the Loba car just to test,  we can't make our mind up if she will go quietly with a misfire or a big bang
You will have a nice little bus for sure when you've finished Alex, we were originally thinking GTX35R plus nitrous for the 4WD DSG time attack car but I really don't think well stray from the Loba now especially as they will hopefully have the headers resolved soon
The Loba is a good fast road car / occasional track turbo for sure but I think out and out the GTX's are the power monsters but the lag is incredible on that app, makes a great track car though
The 2+ RS4 file isn't a yank flash it's one they made recently for my T box, the yanks don't have that ecu for the K04 lumps and the early J & K boxes are different
You'll love the meth it makes one hell of a difference if it's fitted and jetted correctly
We tried using twin Bosch hi flows on the high horse Porsche's TT's but they always over fuelled eventually & the ampage demand was crazy at idle, good for power though say if you were building a standing mile car, when the 997 TT's came out the fueling was massively advanced from the factory.(now gives me an idea for the walbros )
We're finishing tuning the 997 T in the next few weeks I can't wait will make the Golf look like a 1.0 lupo
(over 800 ftlbs @ 3500rpm  :drool:)
I don't use a stand alone EGT on the car as its not run at Wot in 6th constantly at this power, if we ever considered doing that  then I'd use our AFR data logger and fit it permanent .
 The car never drops into saftey at the 450 mark though, I get many 2+ cars in that are straight into safety with three dyno runs power drops 20hp each run. Same cooling I use on my car on the dyno, still need even more cooling though must say.
When I fit the walbros they look o.e I even fit it into the three leg brace with a tiny piece of rubber wrapped around for a good fit
All the best with your build AL will certainly rase a few eyebrows

Anyway I think we stole this chaps original thread so do apologise  :smiley:

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