Fuel injection to Carbs? |
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Fuel injection to Carbs? |
torakki |
Jun 27 2024, 11:32 AM
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#1
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Member Group: Members Posts: 51 Joined: 5-October 18 From: Nor Cal Member No.: 22,545 Region Association: Northern California |
In the process of swapping the FI, on my 2.0L to Empi carbs. My research never found anything about the dizzy needing to be changed. Now I see in the Empi instructions, to swap the distributor. It sounds like, just for timing advance. I wasn't planning on the extra expense so is this necessary?
Thanks |
Superhawk996 |
Jun 27 2024, 01:24 PM
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#2
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914 Guru Group: Members Posts: 6,469 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
So no one else dares wade in and answer your question. (IMG:style_emoticons/default/happy11.gif)
I’ll stick my neck out. Problem is with carbs you pretty much lose the ability to use vacuum advance or vacuum retard. Yes, there are cobble solutions. Trust me that you don’t want to know about them right now. So what you need is a distributor that can give you the advance the engine wants without vacuum. That means a dizzy swap. 123 is great but crazy pricey. There are other options all the way down to the Bosch 009 centrifugal advance which was the “ticket” back in 80s but really is sub-optimal without having it re-curved (again you really don’t want to know). So can you survive without swapping? Yea. But performance will suck and you will have unsolvable flat spots that will seem like carb tuning issues but it really is an ignition problem. Nuisances - yes. Catastrophic - no as long as you keep your total advance reasonable around 27 degrees BTDC. Are we having fun yet? Unfortunately carb swaps come with some strings attached that seem to get glossed over in all the happy marketing for carbs. Sorry to be the bearer of bad news. Long term: watch the classifieds forum. Used 123 dizzy’s seem to pop up from time to time at more affordable pricing. |
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