[Supras] 550 CC fuel injectors

[b2nice84 at aol.com]

I have Lucas injectors from ebay and have passed smog here in California (had to go to a check only station this time).  He did however say everything passed very well accept I was running close to the rich side but still passed. 
 
So if your engin is in good shape the 550cc injectors should pass smog where you are at.  At least with the Lucas 550cc with the Lexus AFM. 
 
Plus I have a hybrid CT-26 (garrett center) that passed the visual but had too pull out my BOV and had to put my CATs back in.
 
 
-----Original Message-----
From: berniek at technicaldevelop.com
To: Supras at supras.com
Sent: Thu, 17 May 2007 7:15 PM
Subject: [Supras] 550 CC fuel injectors


I know this subject has been discussed numerous times before, and I've received 
replies from many good, knowledgeable contributors.  But before committing to 
buying 550 CC injectors, one last set of responses would be appreciated.

New Jersey still uses dynamometers for emissions measurement of pre-OBDII cars 
at 15 MPH, as I found out today when I took my 20 year old 300 CID Chevy van for 
inspection.  The HC limit of 174 PPM seems very hard to meet in some instances.  
When I had the Supra running with the stock engine, it was super smooth with no 
hint of a misfire, but the HC reading was around 90 PPM.  Amazingly the Chevy V8 
was only 9 PPM with about 10 degrees of spark retard.  Conversely a 3 liter SOHC 
older Nissan is right up at the limit with fresh spark plugs and about the same 
spark retard.  CO and NOX have never been problematic.  

I contacted Importblowoutsales, who replied that they know nothing about 
emissions characteristics of Lucas injectors.  Others in the group had reported 
good results in that regard from RC (disc type) injectors.  Yet others have 
advised against use of Venom injectors, as quality control seems poor.  Arlene 
uses Greddy injectors, but there is no emissions inspection in Oklahoma.  

One point of concern is the fact that the stock injectors have the punched sheet 
metal cover over the pintle end for some good reason, or Toyota would not have 
provided it.  Venom provides them since they are apparently modified stock 
injectors.  It would appear that the intake port divider to each valve is the 
reason from splitting the stock injector pattern in half.  "Straight" injectors 
will spray much of the fuel onto the divider.

Hence the concern about 550 CC injectors.  Any and all comments would be 
appreciated.  Thanks.


        BernieK
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