I was wondering what the stock injector flow rate is in pounds? Its for an 88 TBI code E.

and can it handle a few pounds more without any other upgrades?

Thanks.

 

L83 injectors (350 Cross-Fire)
GM5233770*RPD (rear)
GM5233775*RPD (front

LU5 injectors (305 Cross-Fire)
GM5234255*RPD (front)
GM5233765*RPD (rear)



App | Part # NEW | Part # REMAN'D

350 CFI *rear* | 57204 | 27629
350 CFI *front* | 57205 | 27636
350 2bbl Truck | 57202 | 27620
454 2bbl Truck (89) | 57021 | 27625
454 2bbl Truck (92) | 57229 | (none)
305 2bbl F-body (88) | 57020 | 27623
305 CFI *rear* | 57220 | 27626
305 CFI *front* | 57203 | 27632


When you're looking for 454 injectors:
92 454 Chevy Pickup
17084304RPD
9211GM


Injector sizes: (in ml/cycle)

350 CFI Rear: 114
350 CFI Front: 111
350 2bbl truck: 103
454 2bbl early: 124
454 2bbl late: 129
305 F-body: 91
305 CFI Rear: 101
305 CFI Front: 100

55# comes to mind for 305 cid

yes. it can handle significantly higher pressure.

 

well.. thanks for the chinese, but the only thing I got out of that was yes it can take higher pressure. I need to know what the stock pressure is, and how much higher of a pressure it can take benefitting me in horsepower, before I would have to replace other parts like pumps and intake. or before there is no HP gain and just waisting fuel.

Im not familiar with injectors at all, I just know I have to replace mine and wondering whats best to pop in. At my parts store my choices look to be anywhere from 15 to 32 lbs.

 

stock early TBI = 12 lbs

no benefit to higher pressure unless there is a need due to mods to engine(exhaust, intake, heads, cam etc) requiring more fuel. the A/F is commanded in the .bin typically 12.3/1 or so for WOT. Increasing the fuel pressure without accomodating with a .bin change will make you run very rich. I think some of us have run stock injectors at >28 lbs.