[first/thridgen]

Looking to upgrade to Direct Injection On a muilty port chevy small block

I am currently running a progressive kit with a 12gph nozzel on a na (13:1) compression with 87 octane fuel. The trick to sucsess is I am running -15% in the fuel enrichment table opossed to the stock +20%
Border line detonation in the lower rpm range in the summer.


I have chosen 100% methanol as the mixture and roughly 1/2 the total fuel is methanol under load.

With this much fuel flow I am experencing puddleing in the the intake duct before the throttle body. And the distance from the plenium to intake valve is about 2' plus ducting and plenum it is 3' for the back cylinders to see meth. I can reduce this distance by 2' by direct injection.

Question one -> Is there a advantage with direct injection?

Question two -> There looks like alot of hose and manifold to be sucked dry from the intake manifold vacum and to be refilled on demand with the upgrade kit. Is there more lag time?

I already can see the enriched fuel shot followed by a lean drop before increasing to proper fueling ratio on my wide band when Meth is called for.

Question Three -> If I take my single 12gph and divide by 8 I get 1.5gph. Is this the correct size?

I expect the nozzels are rated at a certain pressure and 8 nozzels in parelel will not flow 8 times the rating from a single nozzel due to pressure drop from the others.

Will Eght 2gph nozzels be close to the output of One 12gph nozzel?

Question Four-> How close is the flow of these nozzels when hooked up together? Will they be within 10% of each other?