Injector ????'s

[Koshin]

This is gonna sound stupid, but here goes. I searched and found nothing. Is there anyway that a stock appearing injector could in fact be bigger than 370cc. For example, is there a process that would actually bore out the injector to increase flow capacity?? That sounds stupid but I bought a swapped car not to long ago for dirt cheap, and the guy told me that it had 550 cc injectors. I looked and they seemed to be stock..I just seem to be running really rich. Black plugs everytime I have pulled them. I ordered a wideband to really get a better idea. I just didnt know if someone knew of a process of which I speak. I know I could get them flow tested, but I would rather not put the car down. I have confirmed that they visually appear to be stock injectors. Duffman has confirmed this as well.

[IanS]

How do you know its the injectors, it could also be the MAFs or a boost/vacuum leak causing the richness.

[Koshin]

You are correct sir. The MAF is fine and I have been chasing a vacuum leak since I purchased the car!! I cant find it man. I think it might be the intake manifold gasket??

[IanS]

You are correct sir. The MAF is fine and I have been chasing a vacuum leak since I purchased the car!! I cant find it man. I think it might be the intake manifold gasket??

Try using carb cleaner, with the engine running start spraying carb clean anywhere there are vacuum lines, make sure and hit the manifold real good, especially around the flanges. If the engine idles up at any point you have found your leak. Keep spraying until you can nail down the leaks exact location.

[Koshin]

I have tried that method on more than one occasion, lol. Its a phantom.

[IanS]

I have tried that method on more than one occasion, lol. Its a phantom.

Try using an old tshirt to restrict the air filter, by increasing manifold vacuum you may be able to track it down.

[Koshin]

Thats actually a very good idea, thanks bro