fixed my pulsation damper today and ported the intake out in the proccess.

car has two sets of fuel rails. the first set is on all the time the second set the injectors open up at 3800rpms
well went to hit 3800rpms and the car just FELL FLAT ON IT"S FACE

gave it a second though and tried it again the car did just fine


also wouldn't hold an idle worth a darn either for a while though I think the idle is starting to work it's way back to normal... any ideas guys?

miss a vac line?
gaskets need to setup a little bit?
computer might be "learning"???

 

Was the second set of fuel rails primed and purged of all air?

 

uh... I donno.. doubt it

I hooked the fuel rail up turned the key on to let the fuel pump push in some fuel.... then let it idle for a moment or two

called it good and took off

 

well, you did miss a major line at first, it would be logical to think that you perhaps missed another. after all, all those hoses and lines makes it look like a pile of sticks with a peice of metal under it

 

If you had air compressed into the second bank of fuel rails, you'd get nothing but air out of the injectors until it was expelled. By the time you hit 3,800 the first time, you probably dumped air and starved the primary rails as the pump tried to make up the volume. After the rails had liquid fuel, everything would return to "normal".

Is it now running correctly?

 

for the most part


almost wondering if I have some vac issue now though



alright on each rotor I have two intake runners...

it's like having a 3bbl carb

the 1 throttle blade runs into two primary runners

and the last two both feed two sets of runners when the throttle is opened up so much


at idle I am getting around 15-17 on the vac for the primary runners


and about 5-6 for the secondary runners


I would figure though that they should be about the same????


oh well


oh yeah on the secondary runners though I did port the section out where the injectors stick into the runner cause it realy was a bad restriction (ie almost cut the area down by 35-65%)


but I would think that would cause it