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Ok here we go right now I have 3:08s I'am going to a FFRP rear with 3:73s do I need a chip? I'am going to get one when I get more cash but will I have probs if I put the rear in before the chip? Thanks.
 

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toofast4u said:
Ok here we go right now I have 3:08s I'am going to a FFRP rear with 3:73s do I need a chip? I'am going to get one when I get more cash but will I have probs if I put the rear in before the chip? Thanks.
Yup, too many steps for your EEC to compensate for.

Your gonna be smacking the rev limiter. It's going to rev up quicker than the computer is used to, therefore it won't fill the cylinders in the tranny fast enough, so it will bounce off the limiter, and then shift.

Plus your top speed will be like 90, if not lower since you have 3.08s
 

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what about going from 3.27's to 3.73's ? i have heard you dont need a chip, is this true? if so i will go ahead and swap to the frpp. just curious.
 

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You shouldn't need a chip with a 3.27 to 3.73 gear change. You will just need a speedo gear.

Russell
 
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