We've invented the wheel since then and started slicing bread. Google a few Aussie and South African "enthusiast" cars like Hannes Minnaar's 'Rolla or Luis Lima's Blue Bakkie. 400killerwatt 1.6l's are common on the streets here. Just haven't seen it happen to an A15 yet

I imagine it can be done.

The block "breaks" if:
* the rod breaks and pokes a hole in the block. Use strong racing rods.
* the piston breaks and the rod pokes a hole in the block. Use strong forged pistons.
* the cylinder cracks from combustion pressure. Don't overbore too much. Naturally aspirated can go to 79 but sometimes they crack. Have the block sonic-tested for wall thickness. 77 mm -- 1 mm oversize -- might be OK for high boost.

Typical race-prep will need to be done on the block, including
* Boring and honing done with a compression plate
* Block stress relieved
* Harmonic balancer
* Dowelled flywheel

Don't let the A/F ratio lean more than 14:1 and keep the spark in check -- that's half the battle. Detonation can quickly break a stock 69 HP A12, let alone a big HP build.

why do you want to see 500hp on an A series when you cant do any of the work yourself?

if you havent seen it on an A15 yet then the reason is simple and no need to google it to prove anything.

how about just building your own A series first than paying others to do it?

Yes, a simple explanation is that no one has done it yet.

even simpler is that no one with any real mechanical clue would bother
just for bragging rights or dyno queen figures for a grenade setup.

My my that is so negative. Haven't you ever had any dreams that others said "it can't be done"?

I don't know the limits of an A15, so I won't say it can't be done. When BMW had a 1.5 liter engine that made 750 hp, nobody thought they could make it push 1500 hp. Yes, it was a grenade too, but still made history. That engine lasted just long enough to be effective.

Just for $hit$ and giggles... 1500 ponies at the treads... (I hate hairdressers cars... i.e. Lancers, even my boss has an evo X, although he did come 3rd outright in Targa Taz)
impressive...

apparently there is some stalkbook information, a mate sent me pictures of the crank etc.... it's well good porn....

Nothing negative just not on the crap pipe comparing Bmw to a non diy Peter Panner. You can look at a superior full wet sleeve sierra 1.6 on a Renault maxi turbo with pushrods, crossflow hemi head, variable vane turbos before anyone dreamed of them and all the factory backing. They managed 360hp that grenaded itself from the slightest hiccup. Even to this day in the UK cashed up spoilt kids end up broke replicating the original pricey renault shrapnel.

Maybe the Ti inlet manifold made for free will add extra hp to the H89 head :)
or that guy you labelled a muppet that did your supposed cut and shut box
might be able to squeeze extra hp from lightened main shafts.

Even the propaganda of salesman engineer David Keith Duckworth couldnt help him from failing miserably when entrusted with turbo engines.

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^^^^THIS - This is why I started this thread. My first post in this thread indicated I just wanted to get pick the Datsun 1200.com Guys' brains. Initially I just wanted to speculate. Just for $hits & Giggles. To confirm if it has been done.

Quote:

Now I have to no matter how long it takes or much I end up paying. ;)


I do most of the fabrication bits myself. But I buy the primary block, sub-asssembly, kits and bits for the same reason guys who race fuelers do. You're going to struggle to convince me they dont have the means to build their own engines out of blank steel. I can make hundreds of CAD's, but I still work for a living and dont have as much time during my day to do everything. I mean, if I were to cast my own block and head up to my own spec, of course it could end up making that power. I'm siply doing what every other guy out there does when he buys a bolt-on kit for his car. I'm just buying a few kits =P

I've built more than one 120hp A14 turbo from junkyard crap for buggies. Blew more than one head off as a 16 year-old. It was no biggie as I didnt pay for anything. Now I have a "solid" salary, and I'd like to put some thought and pride into it, even if it has been 8 years since my last A-Series build from ground up. So IF i do blow the head off or put a con' rod through the block sidewall again, I'll investigate what needed strengthening and work on it until i get enough reliability to classify any remaining damage as simple accelerated engine wear =)

I appreciate your input D =) Good questions

Good luck! It's a project I wish I had time to do. From what I understand one of your main challenges will be managing heat. An exhaust gas temperature gauge will help with this and some water injection can be a good way of managing heat while you're tuning. Heat build up is one cause of pre-ignition and all the nasty failures that go with it.