|
|
| Re: Turbo EFI A12 for under $1200. Discussion thread |
Subject: Re: Turbo EFI A12 for under $1200. Discussion thread
by Gary_P on 2016/3/3 3:06:02
For the fuel atomization issue it is not hard to convert the stock manifold to water heat. I did this on one of my 1200's that had an extractor on it when I acquired it. No matter how the carb was tuned the car did not run good unless the outside temp was warm bordering on hot or the engine had been running for 20 minutes or more.
To convert manifold to water heat.
1. Scrape out all the carbon that is plugging the fins on the bottom of the intake manifold where the exhaust manifold used to be.
2. Using an end mill cut through both ends of the heat transfer fins making them free standing.
3. Make a plate that bolts on where the exhaust manifold used to be. Drill and tap a hole for a water fitting near the front outside edge. I used 1/8" pipe thread fittings for getting the water in and out of the converted manifold.
4. Drill into the engine side rear corner of the manifold hot spot and tap for water fitting. If you angle the drill just right there is enough metal there to drill and tap for 1/8" pipe thread.
With this configuration the hot water enters the old hot spot from the right rear upper corner and exits out the bottom at the left front corner traversing corner wise thru the fins warming the manifold.
I used 1/8" male pipe thread to 1/4" hose fittings for the manifold. Made 1/2" hose fittings with 1/4" hose side taps to tap into to the heater lines.
The engine runs much better with the heated manifold with both light throttle and low end torque showing much improvement.
I've got some pics around here somewhere but can't find 'em at the moment.
|
|
