2.0T to 2.0E pistons

[wyno]

Just a small question. What will I have to do to change my 2.0T pistons to 2.0E. And what are the gains for that change.

[jluetjen]

What will you need to do? Off of the top of my head...

1) disassemble most of the motor
2) reassemble most of motor
3) Enjoy an increase in torque as well as the price of mid-grade gas.

If you already have a set of the E pistons, thats all that you'll need to do. If you haven't bought the pistons yet, I'd at least consider a displacement increase to 2.2 at the same time, but this will also entail new cylinders and getting the spigots on the case opened up so that the larger cylinders will fit. If you chose not to do that for financial reasons, you'll still notice the improvement of the E pistons.

While you're in there and for less money then increasing the capacity, I'd think about replacing the cams with E or Solex cams and the jetting of the carbs to suit and then you'll get the benefit of a rev'ier motor and more HP too.

[snowman]

On todays gas I would thank my luckey stars that I have pistons that I can still buy gas for and leave them alone. If I had to buy new ones I would go to 2.2T pistons and cylinders, not the E ones. I would change the cam to the E grind though. Even the T pistons need 89 octane and that may be the most you can get in the near future. Even with this loss in compression I would expect you could see 145HP or more if you retard the cam a couple of degrees.

[jluetjen]

For comparison, I'm just getting my 2.0E (with 9.9:1 CR S pistons) dialed in using 93 octane. With 94 octane the car actually had the ignition advanced by 1 or 2 degrees and was happy.

As a start I've retarded the ignition by a couple of degrees from stock and I'm just dialing in the MFI over the last couple of weeks. Unfortunately I don't have an exhaust gas analyser so I'm using the tweak a setting - drive, tweak - drive method.

[snowman]

93 octane would be wonderful, but out here in la la land we can only get 91 octane and thats highly questionable.

[F1BADUDE]

Originally posted by snowman
93 octane would be wonderful, but out here in la la land we can only get 91 octane and thats highly questionable.

Is 93 not available out there because of emissions?

Heck, hear in Motor city, I can get 100 Octain at any of 4 or 5 stations within a short radii from either work or home. Even have a BP across the road from The Palace (where the World Champ Pistons play) who has 110 octain race fuel.
Little dig for the Lakers

Only downer is that they usually put about a 2 foot long hose on with cement barriers next to the pump. I guess they don't want you to fill a car; only a gas can.

I have a 100 octain APR program on my 20AE GTI. Man does that little turbo haul @$$ with a tank full

[snowman]

93 octane isn't available here because of the commie pig environmental freeks aversion to ANYTHING high performance. No real environmental value. Just the social implications of high octane that they object to.

[F1BADUDE]

I wondered. I wouldn't think high octane would have anymore emissions than standard.

Quite the opposite here. The faster, the bigger, the better in Michigan. And we don't seem to have many enviromental problems.
Send the pinko's to vacation here, we'll straiten 'em out!