UNR8D

a full diff rebuild that im getting atm is new gears $550 LSD center $330 with labour is about $1100-$1200 installed. EB XR6's run a 15.5 stock in manual format.

yea np mate the last thing you need is a 9" diff with out 500+HP @ the rear there is NO need for one as they rob a shitload of power from an alreay starving driveline, best bet is to get your diff rebuilt with 3.9 diff gears as they suit the ratios perfectly in the T5 box wont give you any more HP but will defentlay bring your 1/4 times down. a mate of mine with an EB XR6 mild cam/3.9's/extractors/exhaust runs [email protected]. not bad out of something that is otherwise stock.... yes it is proven and the car atm is now copping some other 'upgrades' :P hehe

kool kool just looking around this site i came across this thread and had to post. to start from the top your futura 5 speed would be lucky to do a 15.5 pass down the qtr with those mods, and you would have around the 165-170HP @ the wheels depending. Are your extractors the street spec or comp (tuned length?) the street will gain you advantages off the line to mid range performance the comp's will gain mid range/topend but loose out bottomend (better for the I6 as it has a nice fat torque curve from 2800rpm onwards.) next on your list should be porting/polishing they can flow upwards of 350HP thru the heads with ease depends how much you want to spend though, a decent cam would also be and advantage but mild/avg as the ECU will go to limp home mode if your lift/duration is too large. atm i have an NL (EL) fairlane that has the following mods:- Pacemaker tuned length extractors upgraded Cat Lukey Cat back system 1 muffler. HP4 chiptorque chip (reprogramable) head port/polish flows 330HP up from 260HP std. Billit custom grind cam (medium lift/duration) *sorry forget exact specs Vernier cam gear (atm still set with std settings) standard auto, 1820kg kerb weight, 3.08 Open center diff [email protected] willowbank raceway. and 192RWHP or 143RWKW. atm im doing a 3.9LSD and auto rebuild in the hope of smashing into the 14's as its the launch that is keeping me in the 15's, with 94MPH on board its defentaly 14 sec teritory just getting a bulk weight off the line and no real HP till 3000rpm makes it hard with crappy HWY diff gears. good luck with it all mate, hope this gives you an insite. :uh-huh: