Thread: What is a Timing Retard Eliminator? (TRE)

In essence, it retards the timing, dropping the horsepower in the lower gears, so newbie squids that shouldn't be buying GSXRs are less likely to hurt themselves.

From Ivan's Performance Products

The TRE is a device which allows much better throttle response in the first 4 gears on all EFI Suzuki sportbike models.

What the manufacturer has done is to make a SEPARATE IGNITION MAP FOR EACH GEAR.
This has been done for either safety and/or emissions reasons. However, it limits the power and smoothness of your bike in the first 1/2 turn of the throttle in gears 1 through 4.

They were clever in the design of this timing retarder. It still allows full timing at full throttle. As you shift up through the gears, the amount of throttle needed to access the advance curve decreases, until you make it into 5th gear and then it's gone. You have nice, smooth operation. Wouldn't you like your bike to respond just as smoothly in the lower gears?

He invented the thing - I have his jet kit for the early SV (specific to my exhaust system) with carbs. It is very well made and effective.

Eliminates it

Originally Posted by nijiconfetchi

So the timing comes retarded from factory.

Exactly, and this device gets rid of that "retarded" timing, for better or worse.