Lawdy Lawd! My NA b18a is finally starting to come together. I have the majority of my plans laid out, and my credit card is quivering with anticipation. However, one of my questions remains unanswered. With my setup(shown below) what size injectors should I use? I hope stock would still be okay to save myself some dough, but i don't know fer sure.

I did search, but found nothing useful. I do apologize in advance if this has been covered before and i missed it.

So, here's the low-down on build plans.


<U>Head</U>
Crower 403's
Crower spring&retainer kit
Manley valve locks
new OEM valve seals
Laskey flat faced valves
ARP headstuds
OEM 2-layer head gasket

<U>Bottom End</U>
P30's (.25 oversized)
ARP rod bolts
New bottom end rod/main bearings & thrust bearings. (not sure what's going in there until i mic. everything)

<U>Bolt-Ons</U>
Edelbrock Performer X intake manifold
AEM CAI
stock TB *will get a bigger one when funds are available*
2.5" mandrel bent exhaust
not sure on a header choice yet.

<U>ECU</U>
shall order one from Phearable.net as soon as i know what injector size to use.

I may have missed a thing or two, if I did, I apologize.

All help is appreciated.
-Chris

 

nuthin, huh?

 

Chris,


Your stock injectors will probably work fine.
Stock injectors will handle up to 190 whp without any issues.
I would recommend upgrading your fuel pump if it is older.

Let us know if you have any other questions.

John Vega - Phearable.net

 

You should be fine on stock injectors. I would have them cleaned and checked. That is one advantage of new ones. I think RC does that for about $25-30.00.

 

thank you both for the help!

hmm, i might just pick up a new set of stock ones to be sure everything is working properly. i'll also see about upgrading that fuel pump when i get to that point of the build.

for now, i think as long as i can get that ECU with a decent basemap, i'll be solid until i can find a decent tuner near Pittsburgh and/or central PA.

thanks again, fellas!

*edit* home internet is down so i have to use the campus computers for a while, hence my slow response(s) *edit*