Delivery valves cause a lopey idle?

zukgod1

zukgod1

Old fart
Joined
Jul 18, 2006
Messages
1,397
So I have a serious lope @ idle.

I've installed some larger DV's and that's about it.
Sounds like it has a cam in it..

Just wondering if the DV's are the cause.

I was thinking I would toss in the stockers to see but it's not that fun removing the lines etc so thought I would ask first.

VE pump BTW...

And other than big injectors it's a stock engine.
 
I know that too big of injector lines cause this too so I don't see why the DV's wouldn't. It has to have something to do with back pressure at idle?? Is it causing trouble for you?
 
cumminspride said:
I know that too big of injector lines cause this too so I don't see why the DV's wouldn't. It has to have something to do with back pressure at idle?? Is it causing trouble for you?
Click to expand...

I knew the larger lines would but in this case the lines are stock.

It lope's like it has a huge cam in it. Guess I'll pull them out to see if the stockers fix it. Makes it a tad hard to drive also.
 
Well I swapped out the delivery valves and nada.
Still lopeing along.

Maybe the injectors are just to damn big, dumping in to much fuel at idle..?
 
Like maybe the injectors are to big that's causing low fuel flow/ Velosity.
 
I am runnin 6x20's and i had no lope until i installed larger lines??? did it do this before the delivery valve swap?
 
ford69557ci said:
I am runnin 6x20's and i had no lope until i installed larger lines??? did it do this before the delivery valve swap?
Click to expand...

I think we have found the problem.. those are HUGE injectors!...my guess is low velocity in the lines... and my bad this thread is really old!...lol
 
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