Quote:
Originally Posted by gripster
Thanks to those with NA SRs who shared their experiences.
I'm getting around 27 mpg in my stock SOHC, being easy on the throttle, but I'm still looking into the N/A SR swap as well.
I've also looked at changing the rear end.
With stock open diff (4.xx), I get 3400 rpms at between 70-75 mph.
What kind of rpms should i be at with the J30 LSD diff (3.xx right)? Should be lower, right?
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Only the J30t has a different ratio, and IIRC it's 3.92:1, so it's not much of a change from 4.08:1. You could do a 3.55:1 from a Q45 but your car would be a turd in traffic.