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Sun Oct 16, 2016 4:53 pm

I have a 1999 mexican beetle and I was communicating with a guy from Mexico yesterday who knows this cars pretty good, he said there won't be a problem with the ecu or injectors as he already done it to his 1993 mexican bug.

He recommended me to go with AA 1914cc (94mm) kit but I mentioned him about the 1776cc been better or more reliable because of the thicker walls but he said that the AA 1914 (94mm) has the same thickness, is this true? If that is the case would it be better going that route?

I saw what is called super big bore pistons and barrels and in the description they specifically mentioned that it has thicker cylinder walls design providing greater strength.

What's better AA or Mahle?

If that is the case, would 1914cc (94mm) be a better option instead of 1776?

I noticed what I believe is what I need, a set of 94mm x 69mm.

The other opton would be 1835cc (92mm) with thicker walls.

Just looking to go the biggest I can but still keeping a healthy and reliable engine. If is better than 1776 I can go with it. I don't abuse the car or race it or anything just want the extra power but like I said I want a healthy and reliable engine.

I don't mind spending the extra money for thicker walls as that is what I have notice is the issue, the thinner walls the worst, right.

Sun Oct 16, 2016 5:13 pm

85.5 standard = 4.14mm (.163")
88 thick wall = 4.50mm (.177")
90.5 standard = 3.75mm (.148")
92 thin wall = 3.00mm (.118")
92 thick wall = 4.54mm (.179")
94 standard = 3.55mm (.140")
As copied from .ashman40
If haven't already, search through the engine/performance forum.

Sun Oct 16, 2016 5:16 pm

Is that the wall thickness?
If that is the case i wonder how thick is the 94mm thick wall, per that list it looks like 92mm thick wall is the way to go.

Sun Oct 16, 2016 5:56 pm

Yep. Wall thickness.
You have a link for thickwall94s?

Sun Oct 16, 2016 5:59 pm

Here you go http://www.cbperformance.com/product-p/1081.htm. depending on cost and shipping I might send the heads to them for machining.

Sun Oct 16, 2016 5:59 pm

That's just hype, the mahle 94 kits have had the same dimensions for 20 years.

It's not really practical to have a 94 thickwall.
You'd be cutting so much out of the head the first two or three fins will be barely attached.
maybe ok if you have 044 heads and a tubro but not OK for you

Do the thickwall 92, and tell machinist to deck the block .060, because the cylinders are that much longer, same as ALL 94 kits. Or you can use 94 too, because the machining is the same.

Sun Oct 16, 2016 6:02 pm

modok wrote: It's not really practical to have a 94 thickwall.
You'd be cutting so much out of the head the first two or three fins will be barely attached.
maybe ok if you have 044 heads and a tubro but not OK for you

Do the thickwall 92, and tell machinist to deck the block .060, because the cylinders are that much longer, same as ALL 94 kits.

That make sense, like in my previous post, i could send them to cb performance depending on shipping and cost to machine the heads. Since they are thick walls, would this be a better alternative than the 1776?

Tue Nov 15, 2016 7:29 pm

Mikedrevguy wrote: 85.5 standard = 4.14mm (.163")
88 thick wall = 4.50mm (.177")
90.5 standard = 3.75mm (.148")
92 thin wall = 3.00mm (.118")
92 thick wall = 4.54mm (.179")
94 standard = 3.55mm (.140")
As copied from .ashman40
If haven't already, search through the engine/performance forum.

Dont forget -> Thick wall AA 94s: 104mm head side x 5mm thick walls

Tue Nov 15, 2016 7:58 pm

There's also the JPM 94's with 105 mm OD, but they cost $700 USD with today's exchange rate:

http://en.jpmotorsports.se/ms/ms/j-p-motorsport-ab-products-helsingborg-254-68/ms-90001226-p-5/#JPM Cylinder

Wed Nov 16, 2016 6:49 am

Or stroke it.
92 thick wall + 74mm crank http://www.cbperformance.com/product-p/1107.htm gives you 1968, almost a 2 liter.
92 cylinders keeps you away from the stud openings when cutting the heads and 74 mm shouldn't require much if any clearancing, depends on your case.

Wed Nov 16, 2016 3:40 pm

bore size has little to nothing to do with reliabilty.

Wed Nov 16, 2016 6:39 pm

mark tucker wrote: bore size has little to nothing to do with reliabilty.

But it has a lot to do with fun. And when a fun engine is neglected, things go south. When a 1500cc got neglected, it mostly just shrugs and keeps going.

Thu Nov 17, 2016 2:35 am

Fast - Reliable - Cheap

Pick any two.

Mon Jul 09, 2018 5:04 pm

allsidius wrote: Fast - Reliable - Cheap

Pick any two.

Good one!