Building a 2332

[vintagewagenwerks]

In winter time i was thinking about building a 2276 typ one .But now my plans become more preciouslly what i want.
The choice is going to a 2332 cc type one ,it should be a good road worrior engine.

Some details:

-48 IDF Weber (allready exists)

-crank 84 stroke

-94er pistons

-30mm berg oil pump

-2" merged header

-1.4 Pauter Pushrods

So my idea is the engine should have an power output of 160 - 180 HP and an operating RPM at 6000 - 6500rpm.

I am not a pro motor engeneer so i hope you can help me by the choice of missing parts these are:

-what case

-heads and valvesices

-cam

-rods

-valve springs etc.

-what crank

Some nice easter everyone at that point ,hope you can help me alittle bit.cheers martin

[Peter]

2" header is way too big for 160hp...

[vintagewagenwerks]

ok what do you suggest for it.

[neil68]

I built a 2332 cc:  1.75" headers, 1.4 rockers, 26 mm Berg oil pump, 5.5" CB H-beam rods, IDA's, CB 044 Ultra Mag Plus heads (first with 42 x 37 valves, now with 44 x 37 valves by K-Roc for weekend racing) and have used several camshafts:  FK8, Web 86C, Web 226.

Depending on your definition of road warrior, I would probably recommend the FK8.  It's very smooth driving around town, but still give decent power when you accelerate.  The 86C is better for 1/4-mile racing, but a touch rougher at low rpms.

Output for my engine was 180.4 HP on the chassis dyno.  I drive it everyday (in good weather) and race most every weekend in the 1/4-mile events...

[vintagewagenwerks]

sounds not bad ,do you use a stock vw case? I ever heard about cracking by the third cylinder with the 2332 cc because of the missing metal in the case for the big crank.My fear is even getting this problem too.

[neil68]

Yes, it's a stock VW magnesium Type 1 case and I haven't seen any cracks anywhere yet.  However, I only have 12,000 miles/19000 km on this case, so far (includes over 250 1/4-mile races).

I do have the 94 mm "slip-in" Mahle cylinders that fit the 90.5 mm Mahle size case holes (from www.lowbugget.com)...the engine was formerly a 2017 cc.  I selected the slip-in's because there didn't appear to be much meat around the case savers and I can switch back to 90.5's in the future, if need be.

[vintagewagenwerks]

Over 250 drag runs is an good attitude.I never heard about 90.5 slip in pistons .I had a 1678cc in the past ,i had big problems with overheat and had blotches in the honing of the cylinders from the heat.Therefore my question ,are your slip in´s thicker than the 1678´s because that was the major problem with them ,to less material by running on high degrees and lots of rpm.

[volkskris]

Neil is saying that he had normal 94 barrels turned down where they go into the case to 90.5 dimensions. Then you need an 90.5 case and 94 heads.

[vintagewagenwerks]

Oh yes i  know ,maybe my question is not in the right way,i mean the thickness of the piston,does it have enough material for cooling,that´s the proplem by the 1678cc pistons,they could not be cooled down enough ,by my past engine.There are different opinions about slip in pistons.

[neil68]

I'm confused...your original post indicated that you were building a 2332 cc?  If so, then the 94 Mahle's are a good choice for most applications.  I haven't seen or heard about too many issues with the pistons...some have put pistons squirters in the case, etc, but most of us just run them "as is".

Others use 94 mm JE, Wiseco, etc, so you could search for feedback on those pistons...you may need to hone the Mahle cylinders in some cases to match other manufacturers pistons.

I think the only problem that there ever was with the 94 mm Mahle kit (or the 88 mm "slip ins") was the older CYLINDERS...the pistons are mostly fine to use, except perhaps in a high powered turbo application.  I had a set of 94 cylinders that warped out of spec in 23,000 miles just with regular driving in the city and highway...but that was back in the '80's before Mahle increased the cylinder wall thickness.  You can find first-hand accounts of 88 mm slip-in cylinders warping under normal use as well. So, I think Mahle pistons are fine...