Could I put 350sbc injectors in my L67 without making any other modifications? Would it work to generate more power or just create problems?

_________________
If it were quick and easy everyone would be doing it!

Just create problems.

Your pcm has an injector flow rate programmed in it. If your change the injectors, it's not going to fuel the engine properly.

You have to do quite a bit to max out your injectors too.

What mods do you have already?

_________________

95 SLE... a keeper. 241k miles. Low and Slow.
97 BMW 528i
98 Infiniti vq35'd i30: 13.3@104mph, 30MPG Hwy (RIP)
02 Jag X-type
03 BMW M5
05 Chevy Cobalt LS
07 Infiniti G35s 6MT (Sold)
07 Ducati Monster S2R 800 with DS1000 swap
83 Yamaha IT175K
72 Yamaha DS7: '74 RD250 swap, JL chambers

Info on dropping a 92-99: Here.

None. well CAI but i dont plan on doing anything else except mabey a high flow cat and mabey a smaller sc pulley.. I just thought if it would be quick and easy than mabey injectors but, "if it was quick and easy everone would do it".. it was just a thought. The car is an every day driver so i cant really take it out of commission to do the mods required..

_________________
If it were quick and easy everyone would be doing it!

Plugging in fuel injectors isn't like jetting a carb. Different injectors require different flow rates programmed into the PCM as already mentioned, PLUS a boost in fuel pressure for the spray to atomize correctly.

Not to mention your L67 injectors are the same ones used in some V8s already.

_________________
2005 GXP - White Gold Pearl, no mods...yet.
2000 SSEi - Resurrection in progress. Built L67 w/L32 fuel rail, ported heads, and cam. Camaro front brake system, GXP cluster, and much more in planning.

Yes, the size and shape of the injectors are standardized to a certain extent. However, as mentioned above, you will not get the results you are expecting. If the injectors are off a TPI motor, they are 18lb/hr, off an LT1 motor I think they are 22lb/hr. With injectors off of either platform, somebody might have hot-rodded the motor and put in bigger injectors..always check the part number cast into the injectors. You can also send them off to be cleaned and matched up. There's a fellow in the Bonneville group who does this for a living.

_________________
Bye Bye 1990 Bonneville LE... Now it belongs to my daughter
In the Garage: 2009 Subaru Outback, 1987 Camaro, 2006 SV650S, 1995 Regal 182 "ASANAGI", 1962 Ford Galaxie 500, 1995 Ford F150 XL 4WD, 1953 Farmall Cub

His name is Chris and here's the original post

http://www.bonnevilleforum.com/showthre ... +injectors

_________________

Sapphire -1999 SSEi Metallic Navy Blue

Is there any way to distinguish weather or not my injectors have a bad flow rate? And can one test the current through the injector circuit to tell if it is faulty or not..?

_________________
If it were quick and easy everyone would be doing it!

your injectors are fine up until you get to the rate that willwren's car is at, i believe, and that is a big amount of power for a 3800.

_________________
Bye Bye:

RIP sandrock

fine if they are working properly... he is wondering if there is a way to test them.

Bigger injectors don't add power. Ideally, if you're outflowing your injectors, a boost of fuel pressure would be the best 'first step' as the fuel will atomize more efficiently, and the flowrate will rise with higher pressure.

It takes alot of mods to need bigger injectors.

Unbolt the rail and put six identical shotglasses under each injector. Crank the motor several times and fill the glasses. Make sure they all look like the same level.

That's the best you can do on your own.

_________________

Click here for mod list for both cars
93 SSEi, 95 SLE (supercharged) 97 Buick LeSabre Limited
PontiacDad at WCBF '04: Cruise control? That's like surrendering!
Comprehensive guide to troubleshooting, rebuilding, and modifying Eaton Superchargers

Ok thanks. will more fuel pressure make a difference, efficiency wise? like i said before its an everyday driver. With gas prices the way they are im looking for ways to get more power and increase my mileage but that is another topic..

_________________
If it were quick and easy everyone would be doing it!

With no 'flow' mods? No. Leave the fuel pressure stock and concentrate on a good tuneup. Most important? Tire pressure. Raise it to 5psi over suggested for your tires.

_________________

Click here for mod list for both cars
93 SSEi, 95 SLE (supercharged) 97 Buick LeSabre Limited
PontiacDad at WCBF '04: Cruise control? That's like surrendering!
Comprehensive guide to troubleshooting, rebuilding, and modifying Eaton Superchargers

wont another 5 psi wear the center of my tires quicker and end up costing my in tires rather than fuel.

_________________
If it were quick and easy everyone would be doing it!

Not really so much on a stock width tire size. It will wear them slightly faster, but not to the point of it costing more in tires in the end. By the time the center is wore out, you will be in need of new tires anyways. If you were running a wide tire it would have an effect though. I have pretty much always run my tires at 40 psi and have never had a problem. You do get a somewhat stiffer ride and slightly better handling as well as the increased fuel mileage.

If you are worried about it though, you can just make sure that they are set at 35 and you will be fine. The mileage increase wouldn't really be massive with just 5 psi, but it would just be one more little thing that helps. As we all know, right now, every little bit counts.

_________________
Ryan

2003 Bonneville SSEi - The Black Mirror SOLD!
2002 Bonneville SE - The Mutt Complete 2004 SLE interior, drivetrain, and body harness swap, ECC swap, HUD swap, black GXP wheels, GXP headlights and tinted tails - SOLD
2003 BMW 540i M Sport, 2001 BMW X5 4.4i, 2010 GMC Acadia, 2017 Grand Design Imagine 3150BH
1982 Cutlass Supreme - The fun one

Balance your fuel savings against a couple thousand less miles in treadwear and let your wallet decide. ;)

No tire on the market today will be hurt by 5psi over the AVERAGE suggested pressure.

_________________

Click here for mod list for both cars
93 SSEi, 95 SLE (supercharged) 97 Buick LeSabre Limited
PontiacDad at WCBF '04: Cruise control? That's like surrendering!
Comprehensive guide to troubleshooting, rebuilding, and modifying Eaton Superchargers

alright thanks very much.. and crash has a good point now days" every little bit helps" I'll try that.. thanks again guys

_________________
If it were quick and easy everyone would be doing it!

With your mods, your injectors should be the right size/flow rate.

If you were looking to increase flow, another possibility would be to have your PCM reprogrammed with scaled down injector sizing to increase flow. The pcm would pulse them more to compensate for their smaller size and it's fueling requirements.

_________________
97 Ei
97 GS
98 GS