• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

1st time tuning/upgrading advice

So how am I getting MAF readings on the OBDII? At idle I get around 50cfm and cruising around 300cfm. I didn't do anything to the MAF sensor yet because I didn't realize it had tamper torx screws.
 


just cause you see a signal dont mean its a good signal, the code says it suffers from low voltage. that means its not working right.
 
New MAF sensor did the trick. Now I can drive her like the hot rod she is! Highest KR I saw was 1.7 with the hammer down.
 


So I've got about 700 miles on it since the mods. Driving to work I might see up to 1.0 KR, but when I really got on it on an entrance ramp, I recorded 2.4 KR. How much is too much?
 
a 3.5" pulley should be good with those mods, I would look around and see if you can find anything like an O2 sensor hitting on the firewall. I wouldn't think you would have any kr with those mods and pulley. might be worthwhile to look for a spark plug wire that is running too close to the header and is shorting out. I usually don't worry about kr less than 1*.
 


O2 sensor could be hitting tunnel occasionally. I bought an extender but realized i cant install it with the header attached. Maybe if i take off the dogbones and disconnect the catback and rock the engine.
 
SgtMarshal said:
If you can get under the car, you could also use a hammer to dent in the firewall
Click to expand...

Yeah, I tried that twice. First, when I installed the headers, and then again, when I realized the bung extension fitting didn't fit with the headers installed. That tunnel sheet metal is some strong stuff, especially right where the O2 sensor needs relief! I have a bung I can weld on somewhere, so I may go that route. The O2 sensor only has about a half inch clearance, or maybe a little less where it is right now on the Speed Daddy's.
 
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