Base Timing +14 +20 At Idle Help!!!!

[PushinPsi]

OK THE ONLY recent thing ive done is installed the 3.5in mas and translater blow through style, car ran like a champ. didnt abuse it just a 3rd gear pull. parked it and 1 week later started it up ran fine for a few minutes and then craped out,.

i hooked up a dattalogger to it today and my idle timing is at the best +14 and veryys around there. with a gental step om the gas the timing advances to peak +37 degrees at about 2300 rpm.. and my

also my throttle position is at 9% at idle

the head was rebuilt about 5k ago all timing belts tensioners,ect

this is my first time using a datalogger so i wasnt sure what all to log, and was kinda in a hurry to not have my car running so long. any other other info i can provide let me know ill get it .

and no i havent hooked back up my stock mas. i really dont think thats my problem.the car was flooding alot after a drive before this.

also my tach on the dash will read about 500rpm at idle and im logging about 1030rmp at idle?????????????there is a rpm wire ive tapped into off the cas but ive checked it, its tight. and like i said it ran like a champ after install of the translater, so im really looking elswhere for now.

other info 16g,255walbro, rc 550's,smic, at 17psi

thanks in advance tyler

 

[Marcus]

You can't go by the timing on your logger to determine your base timing. You have to get a timing light out to see what it is, have you done something else that may have caused the change? How do you like the MAF?

 

[PushinPsi]

THE 1 RUN

 

[PushinPsi]

THE 1 RUN

 

[PushinPsi]

your right, i meant to say my timing at idle was off....THE 1 RUN THat i did with the new mas was awsome felt real good. im gonna try to get a timing light today like i said my timing was done about 5k ago and the belt seems tight..

i have my laptop for only the rest of the day9im borrowing it) anything i should check??

thanks tyler

 

[chinchin]

throttle position is supposed to be like that on the logger if if showed 0% it wouldn't be running the apexi safc showes 0% but that's just it's estimated guess you can go to tmo's website and read all about it

 

[kpt4321]

Is the RPM reading worng on the SAFC? Change the number of cylinders until it reads right, but I think you need to set it for a 2 cylinder.

The timing at idle should probably be around there. Check the base timing with the timing connector under the hood grounded, and the logger UNPLUGED, and make sure it is at 5 degrees.

 

[Phoenyx]

Originally posted by Marcus
You can't go by the timing on your logger to determine your base timing. You have to get a timing light out to see what it is, have you done something else that may have caused the change? How do you like the MAF?

Actually you can. Not the base timing - true, but the actual timing should be 10 degrees. Base timing can only be seen with a timing light and the terminal grounded. Actual timing can be measured without grounding the terminal. You should get the same reading for actual timing on the datalogger as well as a timing light (without grounding the terminal).

I'd say you are 4 degrees advanced. If you hook up a timing light, then you need to adjust base timing to 5 BTDC. After doing that, your timing should be around 10BTDC with the logger.

-M