With fuel prices on the rise, we’ve been getting lots of inquiries about building a VW engine to improve and maximize. This article outlines Aircooled.Net’s recommendations for an MPG Long Block – we call it the “Mileage Master”. This article focuses on the components for a Mileage Master Engine. A lot of guys aren’t interested in improving mileage that much, but their ears perk up when they find out that if they build this engine as we have specified, they will have up to a 50% increase in power over the stock engine! Doing that and having a 40+ mpg power plant is nothing to sneeze at!
[This article does not address MPG TUNING issues -- there is so much material to cover on that topic that we'll instead do another article on MPG TUNING in the near future. ]
The primary goal of the Mileage Master MPG long block
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Some folks with aircooled VWs are looking to move up to an 1800cc VW engine from their stock 1600cc VW engine, but don’t want to break the bank in the process. The advice below is intended to help you build an economical 1800cc Aircooled VW Engine Combo.
The first way we recommend to keep costs reasonable is to stay away from machine work – sometimes called a “no machine” VW engine. This is the first article written for our “VW Engine Combo” series. We are outlining a bare bones build that assumes you do NOT have an unlimited funds. You can add to or change components in this engine combo, of course, but if you do that too much you’ll wind up with a different “category” engine, with a different end cost. The second way we are going to keep the purse strings tight is by not delving into the
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VW Distributor Installation How To
Stock VW Ignition Timing Vintage Training Videos
VW Valves Adjustment Part 1
How to Adjust VW Valves Part 2
After springing for a set of carburetors, some people bolt them on, and are “pleased” with the results. Others are upset by a backfiring, or smoke belching monster. In either case, spending the time to properly jet a set of dual (or single) carburetors is a worthwhile task, since receiving “perfect out-of-the-box” carburetors is one of the biggest myths in the VW industry!
Proper jetting varies depending on engine size, elevation, cam overlap, etc. Jetting is so specific to an individual engine that two identical engine combos with the SAME carbs can even require different jets! The moral of the story is: With your engine combo, carb information and driving elevation, we can advise and get you CLOSE, but to know that your carbs are jetted optimally, you will need to spend the time necessary to dial it in. It IS worth doing for drivability, engine life, and mpg
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This article contains the step by step, detailed procedure for synchronizing dual carburetors on an aircooled VW engine. But before you actually tackle the syncronization, remove the air cleaners, and make sure there are no vacuum leaks (spray starting fluid around the carburetor bases and intake manifolds while the engine is idling). Make sure the engine’s ignition timing, valve adjustments, and other items are all correct also. You do this to ensure that you are adjusting the carburetors to a TUNED engine, not one that has problems.
How to Adjust your Stock VW Carburetor Part 1
Stock VW Carb Adjustment Part 2
Many people do not understand the importance of the following the appropriate steps to prepare an engine to run for the first time. Following proper VW Engine Break In Procedure can mean a long life or fast death for a high VW performance engine. The information in this article can also be a useful guide to starting a VW engine that has been sitting for a long period of time, since it ensures proper oiling before the engine fires up.
Building a ‘Big’ Aircooled VW Engine (Type 1)
This article is a guide to the theory and choices involved in building performance engines for Aircooled VWs (Type 1). There are careful decisions to be made with regard to the engine size and components that are “right” for what you have in mind. The Beetle (and other Type 1 VWs) are fairly light cars. Relatively speaking, it doesn’t take a lot of power for you to really get moving! 140 HP will keep even the Mustang GT’s in your rear view mirror on the street, and 180 HP will eat Corvette’s and Vipers for lunch all day.
“Bolt-On” VW Performance Improvements for your Stock VW
This article is for the aircooled VW owner who ask “What relatively straightforward modifications can I do to make my aircooled VW faster and even more fun to drive – without breaking the bank?”
The following modification recommendations will give you the biggest grin per dollar you invest in your car! Most of the modifications in this article are easily reversible, and do no damage to your stock VW. To help you stay in your budget, this guide attempts to present modifications in the order that will maximize the performance boost or drivability benefit per dollar you spend. Of course there are more involved VW performance and drivability modifications you could do, but this article focuses on mods that you can make to your stock VW in a course of a few hours or a few days.