MK1 GTI 1.8T 20v 25 Year Project

Yes that's the one

 

Ok winter upgrades underway

ABF Ribbed belt alternator set up

does anyone have the part number for the Crank pulley with no other pulley attached ( single )

plus has anyone got a spare spacer bolt for top right hand of the alternator bracket

Mr Pinder you'll have loads of spares

 

New clutch was fitted for GTI Festival last event of the year and did a few NASP PB's

13.31 sec @ 100mph 1.77 60/ft

 

Old clutch lasted 2 seasons of abuse

will change every season now , 2 was too much













clutch release fork strengthened a few years ago






All done

 

New fuel pump upgrade too

Bosch 044 and also increased the fuel pipe from the tank to 12mm ID ( was 8mm ID)

 

Nice one cheers i'll have a look to see if i can split it when it comes out of the dishwasher with the other parts ( don't tell the wife )

 

Split it , sorted cheers

 

I gave the spare Pulley I had to Tom (Smudge) a couple of months ago. I don`t have another

 

All sorted now and fitted don't how i put up with the old v belt set up for so long .



abit tight on the tensioner side so had tocounter sink the pulley bolt .






does anyone have the part number for the M8 spacer bolt for the back of the alternator bracket ?

I have another kit with only that part missing

 

Update - I killed No 4 cylinder


well after 8 years the engine let a valve go on no 4 cylinder inlet , i actually completed the race on 3 cylinders and did a 15.4 sec @ 80mph ( valve went just after 60ft )

so back to the drawing board and decide on the future spec for the 16valver , i was aiming for a 12.98 1/4 mile NASP with the new gearbox ratios . clutch and i finally converted to cable shifter set up.








not too much damage to the bore so should be ok with a Hone , problem is i cannot get 1 replacement JE Piston as they are custom made pistons





so future plan is to go NASP Only and try for the 12.98 sec 1/4 with 200bhp

 

What's special about the JE Pistons ? Sure Nige is running standard ABF Pistons and I know they're good for well past 200 bhp .

 

Damn

As you know, I had exactly the same failure and that destroyed my block too ! You were luckier than me in that respect.

 

Custom compression ratios Mike. Easy to buy pistons with the required CR and have things like deeper valve pockets and correct squish band without risking failure of a machined OEM piston.

Sorry to see this Brookie. Hope you get it sorted soon.

Do you know what caused the valve head to drop off or was it a random failure? Brand of valve?

Gurds

 

Have read through this over the past week on my lunch break. Have really enjoyed reading about the journey and progress you have made. Would love to build a similar spec engine for my car too .

 

Missed the gears and few times on the Saturday due to new box and cable shift set up issues and hit max rpm i think , the valve snapped off the end of the stem .

they have been in 8 years so had a good run out of them.

 

Fair play. 8 years is going well for a race engine.

Gurds

 

Just looking at the spec options for the new rebuild -

Wilder race cams
Higher compression
Bigger injectors
Mapped on Race Fuel

220 - 230 bhp target power

 

Options -

The 16v will be getting rebuilt but also looking at options to make do in the meantime

Here's some food for thought

2.0L 20V ALT Block weight compared to the 16v ABF Block


ABF 16V - 42.8KG



2.0L 20V ALT Alloy block 19.4KG



oh look what i found a low mileage 2.0L 20V ALT Engine , i wonder what power that will push out with 45mm ITB's bolted onto it ? 24kg lighter must be worth 10bhp and we can always put more Nitros through it