Can anyone tell me why my T-108 idles do much better than me T-100?

[blackbuick87]

Can anyone tell me why my T-108 idles so much better than me T-100?

Just got my engine back together. Had it running very nicely on the Thrasher 108. Since I have three month old Sunoco 110 in the tank I decided to put the 100 in to be safe.

Man what a difference! It idled so bad I shut the car off thinking something was wrong. Put the 108 back in and literally smooth as silk. I reset the ECM every time also.

Whats up with that?

 

[BADINBLACK6]

Black, did you just try it once or a couple times? Maybe the 100 wasn't seated right or dirty or bent pin????

 

[blackbuick87]

I dont think so, because I noticed it when I rec'd the chip. I just never ran the two chips back to back and noticed how big of a difference there really was