Have a few threads about my engine dying, but wanted to ask this in a separate thread. Currently a 1.8L but want to do a 2056. If I buy a 2056 long block, I assume I can use all of my L-Jet. But I have questions:
1. Exhaust from my 1.8L will all fit and can stay, correct? I'm almost certain exhaust port spacing is the same on all engines for our cars.
2. I would need new upper engine tins since the spark plug location is different. Or do I plug and redrilll the 1.8L tins?
3. Do the rest of the tins from the 1.8L work?
4. If I use 2.0L upper tins, did they have a stanchion to attach a fuel pressure regulator?
5. I thought 1.8L FI runners have four bolts where they meet the head and 2.0L have three. Do I just drill the 1.8L runners for the third bolt (is there even room for that)?
6. Are the lengths and positions of the L-Jet runners even compatible with the 2.0L?
Anything else I'm missing?
Just use what you have. Get a 2 liter crank and rods. Build the 2056 from there. 912E engine was a 2.0 with L Jet. L-jet may need a little tuning, not sure on that part. 1.8 heads are good to use.
You’ll also need to follow the manuals procedures for tuning the AFM for the proper fuel trim. I think the L-Jet is pretty adaptable, but I would still recommend checking your mixture as the injectors for a 1.8 flow less than the 2.0.
If you use 3 stud 2.0 heads and 2.0 intake runners, the runners won’t line up with the 1.8 plenum. I cut the 2.0 3 stud runners and rewelded them to align with the 1.8 plenum. Not a difficult mod. I am in the process of ditching the D Jet on a 2.0 and installing LJet. Wish me luck
Go find the crank and rods from a 2.0 VW Bus. There are lots out there.
Buy pistons and cylinders.
Get your 1.8 Heads rebuilt with 2.0 Stainless valves.
Find a Bus oversized throttle body. I will help you to put it together.
Buy a Raby 9590 cam kit, including the pushrods, lifters and rocker spacers.
The rest is just careful assembly.
Clay
I’m just sorting through what i have to build my 2056 Ljet. Im presuming a 2.0L throttle body wouldn’t fit the 1.8L intake runners requiring use of the 2.0L ones with a bolt pattern needing modification. Sounds right? I’d like to stick with the Ljet at first anyways
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