Daves Compound Twin turbo XUD

[Dave]

Finally cleared out my car, took all the rubbish, mcdonalds wrappers and shit out, and engine block and pumps, broken sub and general weight that I had been hauling round with me for ages... gave it a service, changed the oil for the first time in this engine for about 2 years.. topped up gearbox oil... goes slightly better probably due to weight more than anything though.

Got a set of almost brand new tyres for cheap, with vac knobblies still on...



and gave it its annual wash.. put new wipers on too ... waiting to finish uni so can pull block and fit new goodies...

[ash23]

a bit cleaner than when i saw it lol also has those parts been there since you picked them up ? lol

[Dave]

That is correct Ash, they have been around the country! lol Havent been home to take them out as of until this week.

Took it for a royal blast this evening with my housemate now im running derv, and the VE is truly failing at the moment, starving like crazy past 5k, pump work needs to be done!

[Dave]

Dont normally do stickers, but I couldnt resist

[Matt]

That sticker is sweet!

[Dave]

[samass]

that sticker is one of the very few i think looks cool, quality

[Ruan]

Not abusing the clutch too much in that video, Dave!!

[Dave]

I would ask which video is this? but to be fair my clutch gets constant abuse whenever im trying to keep it super-coal mode

[ginge191]

looks nice...



i may have just bought the same sticker :|

[Dave]

Copy cat.

Getting feal fuckin ansy right now, been blasting it about at night in the fog, and I just want MOARR. Its not being too bad at the moment, just typical pump problems.

[Dave]

Bout time I updated this abit.... since being back from uni i've done some work on the car...





Fitted new turbo... :mrgreen:

Unfortunately this happened shortly after, and totally dropped my sump;



As I was running 9mm for ages, this thing needed FAR more fuel to maximise its potential... or many hours of modifying the 9mm...

and was up at james's with ruan at weekend, and fitted an 11mm pump again... this made it perform abit better....



When I got back I had time to tweak boost and fuel abit more, this made it perform pretty well..

But just the pressure on the head this happened shortly after, I wasnt able to get a proper video of it



As soon as its on chat it just sprews water out the header tank.... so heads coming off today...

Will try get some better photos up of it, when its running how I want it...

There are several teething issues, exhaust downpipe fouls gear linkages so pops it out of 2nd, 4th and reverse when dropping clutch.... the intake pipe isnt ideal, and neither is the boost control but these shall be sorted and hopefully not turn into one of those temporary permanent solutions that I seem to do.... also obviously HG needs changing... I was tempted to do a major service and just swap blocks but I cba and need to get back to uni at the moment, that requires alot more work really...

anyway must get on, dave

[mark_airey]

you need to add the "team orange engine bay" to your sig mate

Mine does that too ATM, everything is orange again HG is properly fecked! (have to leave the cap loose or it fills up cylinders when parked) Unplanned engine build on the go now so should be working again by FCS

So, how much boost + 11mm pump = broken? I would ask what turbo but know you won't tell.........

[Dave]

Mark you need to just pull your finger out and f*cking change it ! only takes an evening or a day or something....

Pulled the head off today, and thought since i've got head off might aswell drop sump and bang some better rods in...






The derv garage:





Got back into pump porn, and fitted an IPP gauge aswell..





After dropping sump I also noticed an interesting discovery!...



Seriously time to stop f*cking about with these pissy stock rods

dave

[Atterz]

I need to come round for a play in the workshop i think, bloody bending rods again!

[n0v0s]

oi oii Dave! This is what i like to see.... oh noes, whats that? metal fillings inside the fuel pump..?! naaah MINOR! haha, no fkin about.

You been runing stock rods this whole time? hock: Are you opting for forged or hdi spec? Or Dave spec for that matter... (what happened to those epic diy welded /balanced rods?)

That turbo, mmmh those blades look awfully similiar to the standard k14 style... possibly a bigger kkk series? k27!? But then again, I've only had like an 1hrs kip so maybe not..

[ash23]

good work dave i love how you pull these things to bits and swap rods like its a small task.

what boost was you running or was it just th sheer volume of air that did it?

[Dave]

Hahah novos you know it alreet IDI will sort it out haha... it was washed from inside out before put back together dont worry hehe

Yeh i've always had stock rods, hence killed so many engines. I have about 6 sets of HDI rods now which just takes effort to fit.. I did sometime last year which turned out to be a total fail, and last night I started fitting them again today while redoing head gasketing/decomp.

Its not a KKK turbo

Ash its not much more work to do them than to change headgasket.... just a case of dropping sump off and pushing them out the top... I have run into some problems today though that has really f*cked me off... got them on lathe to skim and instantly f*ck a piston so have to sack one off and dig a scrap one out.

Can you guess which one is the new one?

edit: just realised its actually one of darrens old ones from one of his early blocks haha



Also started majorly wanking over pump porn today aswell... its been a while having one stripped completely, started constructing another german fueller 8-)





Also got most of this on a timelapse I may put on youtube, unfortunately the disassembly got f*cked on my phone which pissed me off, and the piston thing, progress has been slow today and only really just got bottom end build back up... head and turbo on tomorrow hopefully...

dave

[darrenjlobb]

Loving the bits of my old XUD9 high booster going into this At least I ran them in for you,

Epic progress here, cant wait to try it out / see it in action again!

I wish I could win the lottery and donate you a set of forged rods to save you so much hassle

[Dave]

No Darren its from one of your early early early blocks!!! as in totally stock piston!!

Yeh progress is ok, just been shit today unfortunately, place is a tip now tools and oil everywhere...

Haha trust me I wish you won the lottery so you could do this too!! could always donate me yours :p


Honed the block,



and this is the current situation.... gotta love shiny alu :dance:




Gotta love the fuckign RAWNESS of the XUD... you will be back one day Darren !!!!!!!!

[darrenjlobb]

Why do you think the sigma is still parked at the back of the shed

[n0v0s]

Right, now that i've had some sort of sleep, lets just forget any mention of kkk.. i mean if your previous was t28, new one is bound to be bigger.. with v-bands like holsets...not 'inferior tech' tho.. mmmh, hah enough of the guessing. I just want to see this goo! Your on a tmic too, how the fk do you manage to get the boost pipe from turbo to the cooler without lifting the master everytime you hit boost??

Sorry, do you mean you've been using xud rods?! How long have they been holding on average? Why were the welded rods a fail btw? As in snapped i take it ..lol.

[mark_airey]

^^ IIRC the weld on the rods made a bid for freedom and filled the sump with bits of weld so he sacked them off

[Dave]

Yeh it will flow more than the T28 I think.... may put that up for sale soon, maybe... yeh its TMIC, I still stand by the need for a fmic is not needed if you have a really efficient turbo... and if its not efficient and you need a FMIC then your turbos not big enough I would fit a fmic, I had one on before and still have all the stuff its just not worth all the insurance fitting it. There is no issues with the tmic, the turbo exits, theres an adaptor and the stock pipe goes over it..

Novos have been using stock rods since the dawn of time really... I've never really been able to push the xud as far as I want purely for this reason, thats why ive been on 9mm for ages aswell, need a car too bad
Mark I never fitted those rods that was just for lols, the epic fail happened for other reasons but I wont go into that haha, its in this thread somewhere I think anyway, or over on pug306.

[n0v0s]

Mmh yeah i agree with the tmic, I've currently got on a 406 k14 that has a diff fitting outlet so had to chop up a corsa fmic to make an adapter but it's such a faff. New ones going to need v band ones making up and due to the stupidly big cold size housing I reckon it will hit the master, ah well. All part of the xud fun!

Oh right, from what I gather you abuse the shit out of the stock rods though upto 6k so I'm thinking there must be a level they can hack. Just trying to ascertain if me fitting stronger hdi rods is worth it as reliability is key for me next clinical yr at uni (probs not best I keep a boosted xud then lol). With skimmed pistons do you think 200brake 30psi could be a reliableish daily? //end optimism
Niv.

[Dave]

Dont get me wrong a FMIC will help, but no way as much as a better turbo...

Yeh I abuse the absolute shit out of the blocks, ive never had any shell issues.. even on this engine I pulled, and I suspect its had bent rods for a long time because it used to be on a high booster 11mm/T2 setup, and have previously killed another block like that... also there was tons of solid burnt on oil gunk up the side of the piston which couldnt have happened in the past 2 days. I still stand by them dieing from advance/boost and not rpm....

The experience ive had with HDI rods is limited, im basing alot of my expectations on how darrens was setup before... 6.5 grand and silly advance.... The hdi rods will quite easily be reliable at 200hp, providing your not making that at 1500rpm I guess i'll find out how this goes with rods now...

Quick update anyway heads back on and other shit, pretty much gotta put pump back on now, and then go and bed the f*ck out the rings!!!!

[darrenjlobb]

Rpms have never been responsible for an XUD letting go yet that ive owned / know of on here...

[Dave]

Even the bent rods that I pulled, you can see they are slightly worn on one side, apart from that they are pretty good nick... and I thrashed that engine everywhere... will put a photo up later along with a bunch of others

[Dave]

Shes back on boost..



Worryingly almost cooked the new turbo though!! Needs more pump tuning!

[Dan!]

wat turbo is it m8