Blue - valid point. However on a stock auto he cant load the car up to get the better launch. my .02

 

bluebeast .........i 2 think it is wierd that i am 1/10 off with drs that is why i am on here asking ?s. if i would have ran 11.7 or 11.8 i would be ok with that and not need to ask what was wrong. i will get a few photos and post them tonight when i get home. i don't know how to prove the slips are with street tires but i will post them anyway. i "got defensive that quick" because i came back to the post to see if i had any responses and i saw what you wrote.


will putting a higher stall convertor effect the driving of the car? it is my daily driver and i enjoy driving it around town as is

 

12.1 w/street tires => good track prep + good DA???
12.0 w/DR's=> limited to max 2K rpm launch???

 

i was expecting a higher trap for flat 12s though [&:]

 

This isn't wrong wheel drive

 

Are you sure those splits are accurate?

With a 91.3 mph entry speed I would expect a3.24 split between 1/8 and 1000'.
It appears you had a power loss between the1/8 and 1000' mark.
Despite starting with a 2.09 mph speed advantage the car took 3.346 to cover the 340' with DR's vs 3.316 mph on street tires.
Thatsover 1/10loss in ET right their just in that 340' without considering its implications for the final 320'.
Hit the knock sensor? Belt Slip? Converter Slip?

Edited: Stock Converter Automatic explains the 60's.

 

I believe it. Saleen blowers run fast times. I swear I have seen more saleen supercharged s197 mustangs in the 11's then any other type of FI. Probably because they are more prevalent, but still I witnessed an automatic saleen sc stang run 12.0 flat not to long ago and he claimed 450 rwhp.

 

[:'(]

 

if my converter is slipping how would i know it? i am going back on friday if no rain. i will try a few runs with the stock tires and then change out to the drs. how do i check to see if the belt is slipping or converter slipping or a knock sensor? any other ideas? thanks

 

i think the belts would whine, at least on GTOs it did. But idtk about torque converters