[Mk2] [Turbo] CT20B Turbo on a Rev1 Turbo

[pilotmike17]

Hi,

I am looking to see if i bolt on a CT20B turbo on a REV1 to replace the CT26 do i need to adjust or map anything or should it just be plug and play etc?

Thanks

Mike

[2mad]

Just bolt it on and enjoy .. dont turn boost up to high .

[Peter Gidden]

You'll need to deal with the extra stud on the turbine outlet flange.

[2mad]

Forgot i cut that off

[pilotmike17]

Thanks!

What would you say are safe boost levels with a stock block using the CT20B? I have a AVCR installed.

Cheers

Mike

[craig]

Thanks!

What would you say are safe boost levels with a stock block using the CT20B? I have a AVCR installed.

Cheers

Mike

On a rev 1 turbo 14/15psi. You'll need a fuel cut defender if you havn't already.

[pilotmike17]

Thanks for the help guys, i pick up the CT20B next week!

[craig]

you'll love it!

[2mad]

you'll love it!

Agreed, boosting with no drop off to the redlines great

[Mike N]

If you are using a rev 3 turbo on a rev 1 or rev 2 block you will have to retain the oil and water feed pipe from the ct26, dont rip the old unit off and destroy those pipes! The ct26 also has a block to turbo support bkt, bolt that to the block but it may no longer bolt under the turbo. Also use a down-pipe clamp at the bottom of the block at the exhaust joint to prevent excessive loading on the manifold and prevent a down-pipe splitting especially with a 3" decat down-pipe or tube manifold.