WBX-Enginecase : GW vs DJ

[VW1300-NORWAY]

Hi!

Are there any difference between a GW enginecase (1900ccm) and a DJ enginecase (2100ccm)? (Exept from the crankshaft).

[Jim Andritsakos]

Hello,

Differences :

Stroke 68.9 - 76.4
Stroker pistons
Different camshaft
Similar but smaller Injection


Good luck

[VW1300-NORWAY]

Thanks for your reply

[Joe vw]

They are not the same:
The Main bearing bores, thrust and oil drillings are different.
The 1.9 uses all Type1 bearings except the thrust bearing which is type 4.

The 2,1 uses expensive all steel backed bearings except #4 at the pulley end. The steel backed bearings have tangs like rod bearings (no dowel pins). The main bores on the left case have milled grooves for oiling and a 3 piece thrust bearing.

[51MAN]

is the bearing difference you mention the difference between the early and late cases, early bearings instd or just ender/over size are impossible to find now..

a "late" case can be identified by a cross web in the generator mount on the jacket (IIRC) all late 1.9 cases will take a 2.1 crank.. 1.9 pistons can me machined enough to clear too.. (common here to use DG pistons and a 2.1 crank as the rings are availabe easy and cheap)

did you get 1.9's after 85/86? or just 2.1's?

[Joe vw]

We have the 2.1 only starting in 1986 in the USA.
You can use a combo of type 1 and 4 in the early case, the type 4 bearings are harder to get than type 1 but not as difficult to obtain as Wasser bearings.

[51MAN]

ah, that explains it then...
if it were me, id look round for a 2.1..

Here in europe we got the "cheap" ones too... my 1992 DOKA syncro has a 1.9 DG (78hp) in it...

[pocketrocket]

The 1.9 block has a 1mm narrower thrust brg. in it its not the same as a t-4 brg. You need to use the waterboxer brg. set to do it right! Rocky

[Joe vw]

Your right , I was thinking of align bore sizes. You would have to narrow the thrust cut bearing also. I'm always looking for cheaper options.
I want to do a t1 stroker in a wasser. The wasser is definetly not as cheap as a type1

[pocketrocket]

The thrust in the blockof a wbx is .826 the 411 is same as bug .866. the the brg width of the wbx 1.020 the 411 1.060. Cheap is a word that has become the trademark of so many companys in the VW aftermarket. I could start a list but my fingers would get tired. The WBX block is the best big bore block. Just look inside any of the other cases and everyone can plainly see. I have spent 100s of hours doing R&D on this block. I have built many engines off the T-1 cranks from 69mm to 90mm. I'm only sorry I can't help all the people that email me with ??. . thanks

[Joe vw]

One set of 2.1 color coded main bearings from the dealer cost me $170.00.
The first set of KS aftermarket standard mains were $50.00. but had too much clearence. When I say cheap, I mean less expensive. There are lots of overpriced wasser parts I try to go closer to the source and shop around.
I agree the wasser is the best block I am keeping mine watercooled and doing all the mods myself. It's rarity of performance parts (pistons) and genuine German VW parts keep prices high. The exception is the type 1 parts that can be used.

[51MAN]

Mmm.. Joe I wonder if you could point me in the right direction of any "upgrade" parts..
I'd like to get a few more cc's on the bore, the stroked crank option is a bit expensive, I am thinking about a set of ceramic lifters with the web 218/119 (IIRC) the engine wll be for low to mid rpm grunt rather than high end power and needs to be reliable (for my syncro doka)

Will clean up the heads but no major mods.. 3 angle the seats etc..

Cheers
Si

[Joe vw]

Mmm.. Joe I wonder if you could point me in the right direction of any "upgrade" parts..
I'd like to get a few more cc's on the bore, the stroked crank option is a bit expensive, I am thinking about a set of ceramic lifters with the web 218/119 (IIRC) the engine wll be for low to mid rpm grunt rather than high end power and needs to be reliable (for my syncro doka)
Will clean up the heads but no major mods.. 3 angle the seats etc..
Cheers
Si

The camshaft has a big influence on horsepower with a Wasser. Click on the link at the bottom of the Wasserboxer price list at "stage III" :
http://www.bostonengine.com/enginepricelist.html
Even with the stock heads the flow continues well after stock valve lift which is around .350" or less. Watch out for valve to piston clearence though.
Blending seats, 3 angles and mild port work helps too.
I plan on a turbo with low boost in my Carat and high boost in my project bug. 2 different engine combos 2 completely different approaches. Initially both will be 2.1 liters. Then I want to build a large stroker turbo with an 84mm stroke , legnthened water jackets ,longer studs and welded heads with large valves and welded-big chambers. I have a Lincoln 275 Tig that I have been welding a lot with over the winter

[VW1300-NORWAY]

Hi!

Are there any difference between a GW enginecase (1900ccm) and a DJ enginecase (2100ccm)? (Exept from the crankshaft).

Hi!

The reason why I asked this question : We have started building an oxy, and when machining the engine case was done (exept for the lifter bore bushing) we found out that it was an 1.9 GW enginecase So, now we wonder if we can use an 2.1 litre crank in the GW case, or should we machine another engine case? (A DJ-case this time )

(I know my english is'nt that good, but I hope you understand )

[51MAN]

Thanks Joe

vw1300
If it has no extra "brace/web" across the alternator mount on the case then its an early case and a 2.1 crank wont fit without clearance and then the bearings are different..
Any 85/86 on, 1.9 or 2.1 case with the brace/web across the altenator mount will take a 2.1 crank ... 1.9 "DG" are easier to find in that respect.

I havent got a picture to hand.. and wont be able to get one for 2 weeks... maybe someone else can post a pic..