Need advice on speedo conversion box

JOHN1242

Active LVC Member
Joined
May 1, 2007
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michigan
OK GUYS BEAR WITH ME.. THE MARKS ARE FINE... BUT.. CHANGING THE GEAR TO A 4.10 IN A MANUAL TRANS 98 COBRA REQUIRED EITHER A CHIP OR A SPEEDO CONVERSION BLACK BOX. THE SPEEDO IS FINE, THE CAR HAS A BIG POWER LOSS. WHY?? I THOUGHT THE MANUAL TRANS COMPUTER WONT RETARD OR ADVANCE TIMING WRT THE SPEEDO. i KNOW THE AUTO TRANS DOES DUE TO SHIFT POINTS BUT HAS ANYONE HEARD OF THIS? WOULD U DISCONNECT IT AND DRIVE THE CAR AROUND TO SEE IF IT COMES BACK?? SORRY THIS POST IS A COBRA THING BUT YOU GUYS NEVER LET ME DOWN.

THANX, john
 

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