alternatively you can upgrade your 3.23 to a 3.7 or 3.9 diff instead and get a HUGE difference on your take off to help you out a bit..

call Joe @ crescent motors if your in syd, he can do them fairly cheap..

bang for your buck

Cheers mate, i might take you up on that offer!
Ill give him a call when i get a chance.. With a higher ratio diff though, like maybe a 3.7, do you lose any top end power? Or power any else?
Cheers.

I have found my EL XR8 to be an embarrasment off the line even with the few mods I have and a 3.45lsd ,I find the thing accelerates quicker if I dont use full throttle off the mark & using the box manually.
hold the brake with left foot, watch the other direction of lights (knowing you're turn is next otherwise it can be embarrasing) have you're RPM (right foot of course) at around 1100, now its you're turn hit the throttle to about 3/4 and let the brake off when RPM hits around 2500, at 3000 fully open the throttle and shift into second, keeping throttle full, then into D (try this in both power & economy settings as I find econ to give me the best change, but mine is an ex cop so the shift is much higher than factory, 5100 in econ & 5500 in power which is into the dropoff too much
I believe the trickflow stage 1 cam is the best for the 5.0l that doesn't have too many mods.
I have seen it produce 208kw (280hp) at the treads with AFR 165's ,trickflow street intake and a 75mm throttle body, with 19LB injectors. but not without a set of pacemakers of course!
but even the easy way out by stroking it the heads need work as 310hp is about the limit .

I find with my car - I need to get the back wheels to spin a little when launching just to get it into it effective rev range. The 3.27 diff doesn't help so I launch hard and blaze the tyres. It works pretty well as some more potent cars have found out (poor little 550000km Fairlane )
Shane

What diff ratio would u recommend for my car with a manual box?
I think mine currently has a 3.45 ratio, am i right?

3.45 -4.11 are pretty good for the town ,even the occasional highway but it depends on the camshaft you plan on installing, you realy want to be cruising within the cam ''sweet spot'' by around 500rpm otherwise it will be boggy down low, & have s**t fuel consumption, nothing makes a good car feel s**t!

Yeah a lot of those nissans are little rockets. My tickford 6 is a slug off the line too, i know how you feel its embarrasing getting your a*** kicked and foot flat and they still pull away.