Author Topic: 2ltr 16v 9a engine more info please!  (Read 22333 times)

Offline ...joe

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2ltr 16v 9a engine more info please!
« on: 18 March 2006, 10:55 »
so this is out of a passat i've been told, is a 2litre 16 valve, but has milder cams than a kr, right? is it a tall block or was that the abf lumps? if not a tall block whats the deal with these? any good? also been told that its a good idea to use the kr cams to get a bit more ooomph out of it?

any info, advice etc welcome!
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Offline veedubgti16v

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Re: 2ltr 16v 9a engine more info please!
« Reply #1 on: 18 March 2006, 12:40 »
yep 9a is the short block, abf the tall block. i think its just the inlet cam that needs swapping over :huh:

Offline monzablue16v

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Re: 2ltr 16v 9a engine more info please!
« Reply #2 on: 18 March 2006, 13:43 »
I have been told to use the 1.8 mk2 head and cams on the 9A lump as it breathes better than the mk3 head. As I understand it the 9a is near identical to the 1.8 kr in many ways,  it's the same height as the kr so the exhaust mounts match up, all the mount points are the same, the gasket set is the same.
I think it's just the drive for the dizzy which needs swapping over and maybe a breather blanking off. It's on my list of things to do I just need to source a good block to rebuild now.

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Offline shaft69

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Re: 2ltr 16v 9a engine more info please!
« Reply #3 on: 18 March 2006, 16:07 »
Yes with 9a when built mine gasket set is same apart from h/gasket so just buy 9a gasket set. Every thing from kr swops straight over dizzy, breathers and as said above use kr inlet cam. If best find one from automatic car dont seem to be as thrashed as manual car. My opinion anyway, You cant imagine the difference when swopped from kr to 9a. The low down torque and power just excellent, Even better with not to wild cams and 4branch.  :smiley:
MK4 1.8t bored/stroked 2.0lt AEG crank, 83mm supertech pistons, intergrated rods, ACL race brgs, Flowed large port head, Supertech valves, All ARP bolts, GTX2871r turbo, Tial wastegate, 3" pipewerx dp, REVO stage 3 tune, Direct port water meth, MORE TO COME!!! Ready to go racing
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Offline Devon Joe

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Re: 2ltr 16v 9a engine more info please!
« Reply #4 on: 18 March 2006, 18:09 »
If it helps you find the right block the code on my 2.0 16v 6a is 2J, not 6A as I'd expected  :huh:
This confused me when i was looking for mine and i went and bought a 2.0 8v 2E block in error as the dude at the scrappy couldnt find 9A written on it anywhere... :smiley:
If only my Volkswagen was as reliable as everyone else's...

Offline monzablue16v

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Re: 2ltr 16v 9a engine more info please!
« Reply #5 on: 18 March 2006, 18:20 »
Which block is the 6a mk2litre16v? is that the mk3 block as I thought the 9a came in audi 80 sport 16vs? anybody know the cars these blocks came from to make it easier to source and in case a bargain is to be found in a scrappy somewhere?

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Offline veedubgti16v

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Re: 2ltr 16v 9a engine more info please!
« Reply #6 on: 18 March 2006, 19:34 »
about the heads, ive seen pics of 9a and kr heads and on the kr the inlet ports are better and on the 9a the exhaust ports are better, so id be inclined to go with the kr head if you are leaving it standard, as you already have the added torque of 2l, might as well make the top end better

Offline shaft69

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Re: 2ltr 16v 9a engine more info please!
« Reply #7 on: 18 March 2006, 19:49 »
6A is audi block, got to change sump and oil pump over from kr. If i remember right!! Short block like 9a, abf and agg are tall blocks from golf, 9a from passat and corrado.
« Last Edit: 18 March 2006, 19:51 by shaft69 »
MK4 1.8t bored/stroked 2.0lt AEG crank, 83mm supertech pistons, intergrated rods, ACL race brgs, Flowed large port head, Supertech valves, All ARP bolts, GTX2871r turbo, Tial wastegate, 3" pipewerx dp, REVO stage 3 tune, Direct port water meth, MORE TO COME!!! Ready to go racing
Owner of bndynamix ltd. BMW and mini specialist
184 Wallgate, Wigan
WN3 4AL
07966492823.

Offline ...joe

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Re: 2ltr 16v 9a engine more info please!
« Reply #8 on: 18 March 2006, 19:53 »
cheers for all that, but you'd say they are solid engines? i was looking through an old pvw where they had a 16v group thrash and most of the big power cars had 9a's. thats got to be a good sign right?! :P
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Offline veedubgti16v

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Re: 2ltr 16v 9a engine more info please!
« Reply #9 on: 18 March 2006, 20:09 »
are you going 16v joe :cool: