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information - mk2f GT tuning


kiran_182

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kiran_182

some info on improving your mk2f  GT, not a comprehensive post so feel free to add you tips 

 

these are the quick power gains

• high lift cam 264 / 268 / 270 - the biggest gain is made here. dont forget new tappets
• 4 branch manifold and exhaust system - dont go to large or it will cost you power
• bigger injectors 
• better air filter 
• chipped ecu

those probably account for 95% of the gain you can get from the engine 

 

the next lot help to pull a few extra horses out for those who really want to put the work in:
• skimmed head / port matched with inlet / exhaust
• de-wedged ported throttle body 
• lightened flywheel - not really power but will spin the engine up faster. be warned if the fly is to light the crank will wear its bearings

 

in opposition to porting the inlet you can use a NZ/G40 inlet with smaller holes to fill in the gap created by the highlift cam moving the powerband higher

 

above all refresh the electric and cooling systems to have a solid runner

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some info on improving your mk2f  GT, not a comprehensive post so feel free to add you tips    these are the quick power gains • high lift cam 264 / 268 / 270 - the biggest gain is made

With a 270 cam i ran 200cc g40s and have now got 249cc injectors    To add my experience since posting. My setup is: • newman 270 cam std pulley • 249cc injectors • g40 inlet

no dont buy a g40 cam...you can ring newman and ask for the 268/268 although ive seen one latley and it looked terrible quality   id pay the extra for a schrick if you can manage

kwijibo_coupe

If you know how to set them up than a Mk2 Golf AFM can give a decent boost in power. They are less restrictive anyway so could be a good addition if you have other mods on the inlet side.

 

Personally I think the best thing about the GT is the GT gearbox. The short ratios really make the most of the lack of torque and help keep the revs in the power band. 

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kiran_182
On 12/02/2017 at 22:02, bradstub said:

Do you know what injectors would be best?

 

With a 270 cam i ran 200cc g40s and have now got 249cc injectors 

 

To add my experience since posting. My setup is:

• newman 270 cam std pulley

• 249cc injectors

• g40 inlet

• 8k chipped ecu

• 421 with jettex g40 system 

 

The big difference is how you set the timing, ignition timing, mix and idle

 

The exact same setup can be slow or fast depending on those factors

 

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  • 2 years later...
BIG RHYS

Hey can anyone help. 

 

I can't find a cam for the Polo GT. 

Looking at getting a newman 270/270 cam for the Polo GT.

 

The ones on ebay are listed for the Polo G40. Will this also fit the polo GT? 

 

 

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steveo3002

no dont buy a g40 cam...you can ring newman and ask for the 268/268 although ive seen one latley and it looked terrible quality

 

id pay the extra for a schrick if you can manage

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