GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat - Found flowbench data for LOTS of stuff

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- - Found flowbench data for LOTS of stuff (https://www.gmforum.com/performance-brainstorming-tuning-96/found-flowbench-data-lots-stuff-223283/)

Found flowbench data for LOTS of stuff

http://dtcc.cz28.com/flow/

A few snippets that may interest us:

Quote:

Stock 98 Camaro 3800 II Throttle Body -- 554.3 cfm
Stock 3800 vin L throttle body w/ screen -- 419.1 cfm
Stock 3800 vin L throttle body w/o screen -- 444.8 cfm

In-Tank Fuel Pump Flow Rates
92 Buick Ultra 3800 Supercharged High Volume AC Delco EP311
36.6 Gallons Per Hour @ 43.5 PSI
25.8 Gallons Per Hour @ 60.0 PSI

Walbro 307 In-tank (86-92 GM high-performance replacement)
255 liters per hour (67.3 gal/hr) @ 70.0 PSI

Injector Flow Rates (@ 43.5 psi)

3800 vin C injectors -- 19.0 lb/hr
3800 vin L injectors -- 21.2 lb/hr
3800 SC vin 1 injectors -- 29.0 lb/hr
3800 Series 2 (non SC) Rochester 17103146 injectors -- 21.2 lb/hr
3800 Series 2 (non SC) Bosch 0280150973 injectors -- 21.2 lb/hr
1996-up 3800 Series II Supercharged (white LS1-style) -- 36 lb/hr

So what does 25 cfm make regarding the TB Screen.....would that be a noticeable gain

Yeah gmtuners has had the info up for a while.

Looks like the Walbro pump would give a significant inrease...

Quote:

Originally Posted by Ryan

Looks like the Walbro pump would give a significant inrease...

Unnecessary flow for most of our cars. There is no performance benefit unless you're outflowing the OEM.

Quote:

Originally Posted by 1993 SLE

So what does 25 cfm make regarding the TB Screen.....would that be a noticeable gain

only if you were outflowing that 419 CFM.