Hey planning on doin a AAE engine conversion on my mk2 polo s. Know everything i need, but not to sure if my 4 branch manifold i bought for the 1.3 engine will marry up to the 1.6 head. I kw the down pipes ave got to be lengthened slightly just wanna kw if the flange will bolt to the head??? Thanks Dan

is it not an AEA or an AEE (both are 1600 8v small block) if so then i've fitted a g40 4 branch on my AEA conversion in my mk1 with no problems...

only difference being that the ports are a slightly dfferent shape but the manifold is wider so therefore does not create any ridges in the gas flow...

buy a gasket for your engine (couple of quid) n match it up the manifold if you want reassurance that was all i did...

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AEE thats the one lol thanks m8 top man i have asked a few people but they were giving me mixed answers. Duz the 1.6 make a big difference in performance??? Got bike carbs, piper cam, 4 branch, 2.25" full system, minor head work, lightened fly wheel in the pipe lines too.

AEE makes a huge difference in performance... if you're going from a standard coupe S engine, you'll not stop laughing on your first drive. Have you a vernier pulley for the piper?

The exhaust will bolt straight on,has the same clearance at the sump (despite the reservoir side being deeper),no need to lengthen it or anything.

A Piper/etc cam will need to be for a 1.4/1.6 6n engine - NOT a 1.3/GT engine as one for the latter wont time-up properly without a vernier pulley.

Too wild a cam wont suit the engine anyway,you want to concentrate on low-medium revs because thats the nature of the engine and where the strength is. You're pissing in the wind tuning for high rpm.

With the standard cam and the bike carbs you've got more torque than the chassis can handle,but its a grunty nature - if you want a progressive screamer then you'll want a 1.4 16v engine instead.

Thanks for the info guys great help, any cams you recommend??? I will be happy for the engine to rev to 6800-7000 max

Try it with the standard cam first is my advice, you will be happy with that for a while....

I am ordering a recon'd block so i think i would rather fit a cam, valve springs ect. ect. while its in my shed. Any recommendations??? Looking for low and mid range power as you all recommend.

For low and mid range you probably won't get any better than the standard cam - a proper head porting would be a more worthwhile investment i'd say.

Stick with the standard cam, with the mk3 flywheel, clutch and gearbox they rev well upto 6k. I usually change at just over 6k with mine and i still have a standard GT exaust and a 1.6 restricting downpipe but it still revs very well. Like mikey said this engine isn't a screamer, but the power is great for town/country road driving.

Duz the aee have o rings or a gasket for the inlet manifold??? I ordered them from vw to use as a template for my bike carb manifold and they gave me 4 o rings (Gutted) Is this right??? How do you get the template to make the flange for the manifold???

it's o rings yeah, the ABU manifold gasket could be used - if it has the same shape ports.

Are the bolt pattern the same??? I was planning on having the manifold and head port matched to the carbs. So the port shape duzn't matter as long as they r in the same position. Thanks twin40racer you seem to be giving me alot of info

Yeah they're the same bolt pattern... :)

But it duz deffinately use a gasket, not o rings???

ABU uses gasket, but I've been struggling to get hold of one....

are the ports the same shape do you know coz i dun wanna get a mani made for a abu gasket and wen i get my aee it duzn't match up. Obviously the port shape duzn't matta so much coz i am aving the ports matched, but i wanna kw if they r in the same position. Thanks

ABU ports are round... 34.2 mm ID.

Thanx m8 thats a gr8 help

anyone got the measurements for an AEE inlet port width and height as i believe they elongated???

they're round... i think about the same... 34-36mm....

awsum stuff, gasket is here tomoz for my template. should get a manifold made within 2 weeks just gotta find a scrappy aee for recon exchange purposes

Yeah I jus got an ABU gasket today, on the 3rd time of trying! I made my flange by measuring, luckily its bang on to the gasket.... RESULT!

Manifold off to get TIG'd up on Fri...

Good luck with yours dude.

Right guys got the manifold sorted now, having the flange made this week and hopefully get it tigg'd next week. My carbs are 37mm and the AEE head is roughly 34-36mm so i only have to open the ports up slightly and trim the gasket from 34.2mm to 37mm. As for the cam duz anyone know the spec of a standard AEE cam, duration ect.ect looking at a piper fast road cam as the power band stops at 6800rpm and i will be only reving to 6500rpm. But this cam is designed for the 1400 engine and the 1600 standard cam maybe a similar spec. As much info needs guys Thanks

Its a long stroke engine mate - see the way figure skaters use centrifugal force and you see why 6500rpm is inefficient.

The light flywheel helps but then you've got the small head.

The long stroke and no breathing issues at low rpm does mean high leverage (torque),so you want a cam that'll focus on this. The standard high-lift cam does this well when you have a decent fuel system.

That's not to say a lumpy cam wont help at all,but only if its not at the cost of the torque that the standard cam produces.

But i doubt its cost efficient - a used 1.6 16v lump can be had for around the cost of a new performance cam.