1983 Toyota Celica GT-S - Message Forum (Re: New fuel injectors?)

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Re: New fuel injectors?

Posted By: Steven Benner

Posted On: August 05, 2002 at 10:53 am GMDT

There isn't any need to replace your fuel injectors unless they have failed (VERY uncommon) or are insufficient for the actual horsepower your engine is (going to be) producing.

Injectors allmost never fail. They just get dirty and cloged. You can have the injectors serviced to bring them to like new condition. I recommend PRT injection (look in the links section) for injector servicing. Injectors can be tested and cleaned. Balanced if you have a few extras. Also there are four replacable pieces on each injector. A screen up top, an o-ring at the fuel rail connection, a plasic spacer and a pintle cap. All should be replaced when the injectors are serviced. Expect to pay around $100 US for four injectors.

If you are planning further mods to your engine then it would be a good idea to upgrade to 210cc/min injectors out of a 4A-GE. If you are going to leave the engine stock don't bother changine flow rates.

Oh, BTW... Don't expect a fuel milage increase from servicing injectors. And expect a minor decreas if upgrading to larger injectors.

Steve

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Message:	Steven Benner wrote: > There isn't any need to replac > e your fuel injectors unless t > hey have failed (VERY uncommon > ) or are insufficient for the > actual horsepower your engine > is (going to be) producing. > > Injectors allmost never fail. > They just get dirty and cloged > . You can have the injectors s > erviced to bring them to like > new condition. I recommend PRT > injection (look in the links > section) for injector servicin > g. Injectors can be tested and > cleaned. Balanced if you have > a few extras. Also there are > four replacable pieces on each > injector. A screen up top, an > o-ring at the fuel rail conne > ction, a plasic spacer and a p > intle cap. All should be repla > ced when the injectors are ser > viced. Expect to pay around $1 > 00 US for four injectors. > > If you are planning further mo > ds to your engine then it woul > d be a good idea to upgrade to > 210cc/min injectors out of a > 4A-GE. If you are going to lea > ve the engine stock don't both > er changine flow rates. > > Oh, BTW... Don't expect a fuel > milage increase from servicin > g injectors. And expect a mino > r decreas if upgrading to larg > er injectors. > > Steve
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