What chip is this?

[Shane]

Hi-
The previous owner of my car left a chip in the ashtray. I don't know what chip it is, but it says BDM2 22/23T on it. Is this better than the stock chip? I'm assuming that I have the stock chip in it, I haven't checked.

 

[blackbuick87]

22/23T my indicate timing, if that is what it has do not run it with pump gas. I personally would never use a chip I know little about. I would put a magnet on it and stick it to the refridgerator

 

[BM Computer Src]

Hey,

That chip is one I made for that car. I would use it only for race gas, its got 22 degrees timing.

Hope this helps!

Bob

 

[Scott231]

Originally posted by BM Computer Src
I would use it only for race gas, its got 22 degrees timing.

Eh? The bone stock TR computer chip has 22 degree of timing and recommends premium unleaded. Splain....

 

[TurboDave]

Originally posted by Scott231
Eh? The bone stock TR computer chip has 22 degree of timing and recommends premium unleaded. Splain....

Easy, in 86/87, gasoline quality was MUCH higher than it is today. It's a forgone conclusion that 22-23 degrees of timing is usually refered to as a 100 octane area, maybe 98 ;-)

But with todays gasoline mixtures/blends, somewhere around 19-20 degrees of timing is more than enough.

And one more reason. Back then 22º of timing was just fine for the factory designed boost level of 12#. Since most guys want to run at least 15+, that's just too much timing.

 

[BM Computer Src]

Originally posted by TurboDave
Easy, in 86/87, gasoline quality was MUCH higher than it is today. It's a forgone conclusion that 22-23 degrees of timing is usually refered to as a 100 octane area, maybe 98 ;-)

But with todays gasoline mixtures/blends, somewhere around 19-20 degrees of timing is more than enough.

And one more reason. Back then 22º of timing was just fine for the factory designed boost level of 12#. Since most guys want to run at least 15+, that's just too much timing.

Thats exactly right.

(It used to be my car, so I know how much timing it could tolerate on the pump gas, and it was not more than 19 degrees at 15 psi)

Bob