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Few questions on this.
Is 99 the only year that they produced the head that flows best out of all of them? I don't suppose it falls into anyother years?
What would you have to pay to get one?
If this was fitted to a std 1.8 bottom end with a MS DIYPNP that enables removal of the maf what bhp could be expected?

Thanks in advance.
 

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As the man says the intake path is straighter on the later heads.



The VICS system in the intake manifold also helps gain some low/mid range.

These heads were fitted to 99-00 1.8's.
You'll need the head, intake manifold and fuel rail.

Price no idea.
I've seen em go for ?100 and i've seen em go for ?300.

Power gain i'd expect 10-15bhp from both mods with a decent tune.
 

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And me!! I have a 1999 1.8 engine in my Mk1, currently running a 1991 1.6 intake manifold, throttle body and ECU... I take it swapping these items for the correct 1999 items would see a bit of a power gain? I will be adding a charger and EMB later, but want to get the basics right first!!

Russell.
 

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And me!! I have a 1999 1.8 engine in my Mk1, currently running a 1991 1.6 intake manifold, throttle body and ECU... I take it swapping these items for the correct 1999 items would see a bit of a power gain? I will be adding a charger and EMB later, but want to get the basics right first!!

Russell.
im surprised the 1.6 intake fits on it? but yes i would be better. you will need a controller to run the intake as it has something that changes in it(VICS).
 

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And me!! I have a 1999 1.8 engine in my Mk1, currently running a 1991 1.6 intake manifold, throttle body and ECU... I take it swapping these items for the correct 1999 items would see a bit of a power gain? I will be adding a charger and EMB later, but want to get the basics right first!!

Russell.
The intake manfiold will be the 1999 one. 1.6 engines are shorter, and MK1 intake manifolds don't fit.

You might gain a smidgen from the correct TB, you'd definately gain from using the 1999 ECU and dumping the AFM!
 

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OK cheers, so I guess my VICS is not doing anything at the moment?

Any ideas how much of a job it is to get / fit a Mk2 ECU onto the Mk1 wiring loom I have? If its a lot of work, I may just put it on hold and go for an aftermarket ECU (when I can afford it) before I go for the charger conversion.

Russell.
 

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You'll likely have to swop 99% of the loom too, the NA ECU uses a CAS to ascertain cam and crank position, the NB has seperate crank and cam sensors, (are those even still fitted to your engine!?!)

It'll definately be easier to fit an aftermarket ECU.

You can get VICS going with an rpm switch, but don't expect to notice a difference
 

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You'll get a better result with just swapping for a 99-00 motor.

Th later motors had a higher compression ratio, this together with the better designed head and slightly hotter cams does give a noticable hike in power.

Don't flog your 1.8 <94 motor though as you'll need the sensors, CAS and cam cover.

VICS does make a noticeable difference when your N/A Richy, it's subtle but you can feel that extra omphhhh in the mid range.

Cheers
Mark
 

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