Best way to tune a 1.6 8v

[nova speed]

Hi iv got a 1.6 8 v from a late gsi what is the best way to go about tuning it. I am rebuilding it so while it's in bits makes sence to give it a
Bit more power. I am aiming for 125 bhp+

[Novasport]

Fit an XE....











Sorry, thought I would get in there first lol

[Novasport]

Headwork, cam, change of induction, over size pistons, exhaust, turbo.... How far do you want to go and what is your budget

[bazil]

125?

Change cam and add twin 40's

[nova speed]

Would like to keep it na was thinking of a cam and head work what would be the best cam to go for. What gain would I get from biger pistons and a rough cost. The block was slightly pitted on top so that has been decked. Money not to much of a problem it's going to be done over time. Don't want to spend silly money

[gtegary]

mines running around 150, but its had a small fortune spent on it, Blisten head with further head work, big valves, cam, twin 40's, bigger pistons, lightened and blanced crank, lightened fly wheel etc etc etc... i don't even know half the stuff as i can't read some of the engine builders hand writing on my receipt lol

[Stuart]

Kent ast2 cam, light head fettle, megasquirt and that's your 125.

[nova speed]

Do I need a full cam kit valve springs and followers or can I just use a cam

[Stuart]

A long as they are in good order, just reuse the springs and followers.

[bazil]

Depends how much abuse you want to give it,

Personally I'd rather not have tired soft valve springs on an engine I'm going to give abuse too

[Novasport]

You cant fit an AST2 with injection, it will run like a right pile of crap. Kent do some injection friendly cam profiles, check their website.

[Stuart]

You cant fit an AST2 with injection, it will run like a right pile of crap. Kent do some injection friendly cam profiles, check their website.

Hence the megasquirt ;) their injection profile cams are very nancy.

[gte-87]

Bike carbs cam and manifold

[nova speed]

If I use bike carbs what are the best ones to use and what linkage would I use

[burgo]

Bolt on a 16v head with a powerbox and decent exaust and theres 130bhp. Cheapest power as well

[kbnova]

twins 40's , head work, cam,

[nova speed]

Is a 16v head a strait swap

[mowgli]

well, it will fit, but you will have some fun getting all the timing belt bits to fit & then the extra sensors for the efi etc.