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Author
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Topic: Which OTS cams are passing smog?
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SHIFTY-50
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Member # 8091
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posted
 
 
I know it's a beaten topic, but I would like some input from folks who have gotten some decent street cams through the sniffer. My car currently has an XE270-114, AFR 165s, Edelbrock RPM2, 24#, 302, and the rest of the typical stuff all NA. I suspect the cats I have are questionable and I am getting some blow-by. I'm gonna freshen the bottom end up here and now I am deciding on a different cam. I thought the one that is in there should have made it, it's really not that big. I did a pre-test and I don't have a printout but the tech said it was about 100ppm off on the hc at its best attempt. The car was hot and I do have a 195 t-stat, timing was at 10, fuel pressure was 36#. I have gotten an X-cam through before with a little different combo but I would like to use a newer cam if possible and not step back to the FFRP cams. I would like your input though even if you are using the ford cams. I would really appreciate any feedback you have, what your combo is, what you did, etc. Thank You.
[ February 19, 2010, 06:12 AM: Message edited by: SHIFTY-50 ]
Posts: 10 | From: Chico, CA | Registered: Dec 2007
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threethirty1
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Member # 7814
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posted
TFS 1 passed no problem for me
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1987 Black GT
factory zero option car
Posts: 777 | From: North Bay | Registered: Jul 2007
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JohnB
Tech Moderator
Member # 969
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posted
The combinations/possibilities are endless. If you're only 100ppm off, it can be corrected/passed with dropping the timing 1-2*. As stated, cats are questionable right?
I've gotten everything from a TFS1 to some of the bigger XE's to pass. It's all about the setup and condition of the shortblock.
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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SHIFTY-50
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Member # 8091
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posted
Yeah I think the smog guy was tweaking with the timing and fuel pressure and that was the best he could get it. I just want to make sure I get a cam in there that will make it. Thanks for the input though.
Posts: 10 | From: Chico, CA | Registered: Dec 2007
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Pure Stang
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Member # 7251
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posted
spend a little extra money (not by much) and get a custom cam that would pass the sniffer. that would be the best way to go ![[patriot]](graemlins/patriot.gif)
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HEART BREAKER
R.I.P Willie Guzman (5ltrsvt) you will be missed brother.
04/24/87 - 11/23/2012
90 lx 347 RIP
86 gt
89 lx- next project
Posts: 6497 | From: San Jose | Registered: Nov 2006
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STREETFIGHTER50
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Member # 2973
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posted
quote:
Originally posted by Pure Stang:
spend a little extra money (not by much) and get a custom cam that would pass the sniffer. that would be the best way to go
+1, but if u really need to get off the shelf I remember the COMP XE274HR passing the sniffer
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'89 Coupe-Kurgan Tuned 498/491RW, Vortech SI, 351W
Posts: 3925 | From: SF Bay Coastin' to Rocklin | Registered: Jun 2003
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