Fuel Injector Cleaning

155000thou...they toast

Before



day after tomorow I'll have the after fotos.Bill sed they cleaned up real good.They had some flow issues with erratic spray patterns.

Just sent my extra set in yesterday, along with 4 Honda injectors. Bet he has them all done by Fri.

And after



no pic of the Cherry Rancher as it's in me maw allready

I'm just a little stumped on the 80% flow?  what happened to 100% flow?  are my injectors bad?

I think the 80 is in relation to volume of the cylinders they were spraying into. I think Injector 3 was 80 before because it was your best flowing injector. The best will always be at 80 before and then you can compare what the others did in that time. All being at 80 after just means they moved the same amount of volume in the same amount of time! The LBS/ HR is whats important if you know they are all flowing the same! At least thats what Im getting from the summary!

th3fr4nchi5e wrote:

I think the 80 is in relation to volume of the cylinders they were spraying into. I think Injector 3 was 80 before because it was your best flowing injector. The best will always be at 80 before and then you can compare what the others did in that time. All being at 80 after just means they moved the same amount of volume in the same amount of time! The LBS/ HR is whats important if you know they are all flowing the same! At least thats what Im getting from the summary!

No kiddin!? how many lbs are the series 1 injectors supposed to flow? I'm guessing 30.4 lbs/hr is optimal,right?

No idea! They probably made sure one was brought to within spec or whatever the optimal flow was and matched the rest!

According to a bonnevillePRO.com thread I found, Series I L67 injectors have a flow spec of 29 lb/hr.

wow! well,I'm looking into it.It seems that for the 95 s/c the injectors are fine.According to a source,we wouldnt need anything bigger until the Riv starts making 500hp or more.So, I guess I'm good.I'm still confused about other members posted pics of their injectors flowing 100%. what gives?

My Series II L67 injectors flow 36 lb/hr, but whether or not that's needed, I'm not sure. INTENSE Racing claims their 42.5 lb/hr units are recommended for 420 HP, and 60 lb/hr units support 720 HP.

Btw, mine came back with max flow at 95, so I don't think it's a percent. I wouldn't worry about them being 100. As long as they're matched and the output is within spec (in your case better), it's all good!

ah,ok. makes sense I guess. Got 'em all installed.I'll post a tutorial for anyone interested.

Sorry to dig up an old thread, but I have a question. Are the O-rings for the Series II injectors the same on the top and bottom of the injectors? I want to pull mine to do a home-made cleaning and wanted to make sure they weren't two difference sized between the manifold o-rings and fuel rail o-rings. Thanks!

I'm pretty sure the upper and lower O-rings are different.

Yeah I thought so too. I'll probably get a bunch for when I go to do my dad's Regal. It's probably due for LIM gaskets soon, it recently hit 103,000 miles.