Mk2 8v....Any benefit to fitting a 2.0 8v

[gazareth]

Hi folks

Been offered a Mk3 2.0 8v GTI for peanuts, Wondering what benefits (if any) there would be on fitting the engine in my MK2 8v as they seem to have the same power

Thanks in advance

Kev

the agg is only 3bhp up on the pb but there is more low rpm torque. use the agg block with the pb head and a cam upgrade and it will go very nicely

[gazareth]

Not really. But the bottom end with mk2 head is better.
Mk2 head flows better than the 3. Hence the bhp figures of the 8v not being much different

tbh lemski I think this is a bit of a myth. the agg engine has a milder cam and runs a cat but still makes 3 bhp more than a pb engine at the same rpm.

[lemski]

I thought it was a myth. But im sure someone has tested the theory.
I know in the 16v you put the inlet cam in the abf to make slight gains. Because of lift duration.

But I digress. You cpuld well be right that its a myth

[Craigwilson]

I done the agg block with pb head with a 270 cam in my 8v and it was noticeably different right away nice low end grunt but it fade at 5k but I think it was more to do with the cam, would reccomend it tho, it was certainly quicker

[gazareth]

it may not rev much over 5k rpm, but it gets there quicker . if you only change the bottom end you will get the same bhp figure but it will be lower in the rev range. which is why the cam upgrade is needed to help the larger capacity engine breathe at higher revs.

[gazareth]

it may not rev much over 5k rpm, but it gets there quicker . if you only change the bottom end you will get the same bhp figure but it will be lower in the rev range. which is why the cam upgrade is needed to help the larger capacity engine breathe at higher revs.

maybe your cam wasn't timed right or it wasn't getting enough fuel.

[Craigwilson]

may well have not have been, but it was definetly faster, still have the 2.0 block with distributer and head with updated valve springs, the (cam is now in my dads 1.8 8v gti) just a heads up

[chrismc]

A 2E/AGG mk3 bottom end is a nice upgrade. More torque low down, though it will run out of puff between 5-5.5

A Schrick or similar 270-276 cam & flowed head (particularly with a port matched & flowed exh manifold) compliments it a treat

The only other thing I'd recommend is a 16v pressure plate for the clutch as the standard 8v might struggle a bit...