Flow Matched

Magnumb · September 26, 2007

Where can I get my injectors flow matched? I know of Westors but they are in Canada.

Draenor · September 26, 2007

Unless a local speed shop can do it, you may have to send them off to a reputable shop like Westers.. Call around. I think the average price to test is about $15-30 an injector.

Where are you located?

Magnumb · September 26, 2007

I was afraid of that. I am located 40 miles west of Chicago. I call Midwest Hot Rods just down the street but they do not offer this. I did find out I can get a 383 installed in my truck over there.

Can they adjust the flow on injectors or do they just find similar ones out of batch?

Magnumb · October 1, 2007

The probelm is they can't adjust the flow on injectors they have to match them by comparison and I only have 4 to compare and at $11 each does not seem worth it to take that gamble. I will have buy used matched injectors off ebay.

Draenor · October 1, 2007

The probelm is they can't adjust the flow on injectors they have to match them by comparison and I only have 4 to compare and at $11 each does not seem worth it to take that gamble. I will have buy used matched injectors off ebay.

Correct, they have to pull from a batch you cant adjust the flow per say. You can adjust the pulse and width(Duty cycle) with a programmer. I would buy a good set already flow matched and sell the old ones and recoupe some cash. Or keep them as spares.

What exactly are you planning to do?

Magnumb · October 2, 2007

I will have to go that route. I want the truck to idle without shaking and have smoother acceleration. The injectors already have 180k so I wanted to change them and might as well do it right. I might increase the PSI to 14.5 and I want to make sure the injectors will handle this..the old ones might not.

Thanks

AirForceAngler · October 2, 2007

The problem probably doesn't reside with the injectors only. With that many miles, there are lots of reasons for rough idle. Timing chain slack is a big one along with worn motor mounts and worn gears on the distributor. If I remember right, a 95 is only going to have 2 injectors and having them a bit off from each other isn't going to make a big difference.

Magnumb · October 5, 2007

I just heard the same from Witchhunter performance that flow matched units will not help on TBI motors. I am glad I did not spend the extra money. I will check my timing chain slack next time I change the distributor. Part of me wants this engine to blow so I can get a higher HP motor. But these TBI's seem to last forever and I like racking up miles.

Thanks,

Justin