ABA swap?

[hamradio]

Question-
What exactly is the advantage in swapping an aba into a mk1? It is still a counterflow engine, isn't it? Can CIS be made to work with it?

And also,
What's the advantage of a aba 16v? Why not just go with a 2.0l 16v?

[20V'er]

ABA=crossflow

Also electrical injection, a bit more displacement and usually less miles.

Advantage of ABA 16V combo is you can build a motor from low to block popping compression depending on what you are after.

[EWAustin]

The biggest advantage to the ABA (aside from being crossflow) is the longer rod ratio.

Makes the engine smoother, but also means less wasted power.

a 2.0 16v is good for about 120hp right? The ABF (euro-spec OEM ABA 16v) put out something like 160hp.

[hamradio]

Oh. Would it be ridiculous to get take out the 16v in my rocco and put an aba 8v in?

[EWAustin]

Yes.

[hamradio]

Ok. I thought an aba was like 140 hp, but just looked it up, and found it was 115. I suppose, for the guys swapping them into mk1's, coming from a smaller 8v, it is an upgrade, and cheaper than a 16v.

Would changing the jetronic k to motronic do anything?

sorry to sound like a ricer.

[EWAustin]

Not really.
Get yourself a 'fuel enrichment module', a K&N, and a header and go from there if you want performance.

[hamradio]

I've actually looked into building a fuel enrichment module. Seems easy to make. Just tricks the cis into thinking the engine is colder, doesn't it?

K&N in the airbox, or the airbox modified to a big rice boy k&n can go in there?

Headers, I'm kicking myself for not buying those brospeed ones on here for cheap, a while back. My downpipe is all hacked up anyway, thanks to the PO bringing it to a shady exhaust shop when the flex joints leaked.

[hamradio]

Another ricer question-
What kind of gains can be expected from k&n, headers, enrichment module? A couple hp?

[momo]

sorry for being noobish, but what exactly is CIS? and what is the difference between couterflow and crossflow?

[bagpipe goatee]

Would changing the jetronic k to motronic do anything?


Yes, this will do a lot. Not much regarding peak power, but slightly better driveability and significantly better fuel economy.


Not really.
Get yourself a 'fuel enrichment module', a K&N, and a header and go from there if you want performance.

The fuel enrichment modules are cheap and easy, but they are not a good idea if you actually drive your car a lot. They don't enrich smartly, it's quite uneven. Hits your gas mileage, plus there's no reason a fueling system shouldn't be exact. Throwing more fuel at the engine is usually not the answer.


sorry for being noobish, but what exactly is CIS? and what is the difference between couterflow and crossflow?

CIS is the injection system most older vw's and some other cars had. It stands for Continuous Fuel Injection, it's also known as jetronic. It is a mechanical fuel system, using vacuum to lift a plate, controlling a valve, which releases more fuel through the injectors. Not a terrible fuel system, and it was great for its time. Nowadays, though, cheap programmable fuel systems like megasquirt have it slightly beat in power and definitely beat in driveability and economy.

Counterflow means the intake and exhaust manifold are on the same "side" of the head. Crossflow means the intake manifold is on the opposite side as the exhaust.

[EWAustin]

Counterflow means the intake and exhaust manifold are on the same "side" of the head. Crossflow means the intake manifold is on the opposite side as the exhaust.

Fixed it for ya :beer:

[bagpipe goatee]

Oops, I should proofread what I said. Yes. I crossed them. Don't listen to me. Fixed now.

[EWAustin]

No worries, just don't want to confuse Hammy or Momo

[Die Frau]

or me.

[EWAustin]

You too Pete ;)

[Die Frau]

whew.... I deff don't want to be left out of the clueless, mis-informed member club!

[furryrabbit84]

thats all good but you should take an aba block and your 16v head and get some vw crossmojonation on and get some extra hp's to stuff in your rocco and mega squirt the crap out of it. just get the right aba so you have the factory forged innerds and can add boost it if you want to later.

[hamradio]

That was the funniest post I've read all day! Thank you sir.

crossmojonation ftw.

[Digital K]

mmmmmm block popping compression....

[furryrabbit84]

get a fat gasket and you are ready for booooooost! the gti, jetta gt& trek/wolfsburg have forged goodies in their aba's and with a good rebuild with the right pistons and a small hairdryer you could have a pretty quick lil racco. i ditched the itb idea in favor of this one my self. rumor has it that abf's in europe are hitting 180-200 whp's without boost and upwards of 300 force fed. just right for my lil yeller. still too many valves for my taste but what do you do? my fast like extra valves......maybe 20?

[Digital K]

only 1995 and earlier had forged internals and oil squirters.

[hamradio]

*all* 1995 and earlier aba's have forged internals and oil squirters?

Do I *need* different pistons, or will a thick gasket do for turbo goodness? What's the CR of a 1.8 16v head on an aba? How 'bout with stacked gaskets?

What can a turbo aba do? I just don't want to drop big $$$ on turbo mani for the 16v. Rather just use a diesel turbo mani on an 8v. diesel turbo mani fits on aba head, right?

What's the cheapest one could make a decent 16vt for?

[Digital K]

you dont want to do a hybrid on your first swap. just do a straight up swap and get it running. dont get over your head.

[hamradio]

meh, then I'll just mess around with diesels. :biggrin: How does stacking gaskets on a 1.8 16v work for turbo goodness? I figure, turbo setup is about equal to the price of a good set of cams.

[EWAustin]

meh, then I'll just mess around with diesels. :biggrin: How does stacking gaskets on a 1.8 16v work for turbo goodness? I figure, turbo setup is about equal to the price of a good set of cams.

Techtonic's cams start at $380 for the 16v and go up to $550.

Find me ANY turbo kit for under a grand...

[hamradio]

I didn't mean turbo kit, I meant $300 ebay manifold (or a hacked s2 mani, doesn't that work?), a really cheap turbo, and some parts I'd have laying around.

[EWAustin]

Maybe so, but then you need an intercooler, piping, and whatever fuel enrichment is necessary for your new found blower. Oh, and let's not forget the snail itself.

[furryrabbit84]

if you are going to be messing about force feeding the motor with air do it right the first time and dont use half assed methods. if you wanna do it pay the little extra money and get the right parts for the job so your newly boooosted toy will be drivable and not an expensive paper weight:idea: