Guilt-Toy

I am in Abu Dhabi, our workshop is Project X Motorsports +971558452254 - give me a call if you like.

its got about 380hp at wheels, with stock injectors. the fuel pump is upgraded. injectors are the 440cc rb26 injectors, they are pretty much on the limit atm. been driving the car alot today, wow it sounds amazing... it goes really well once you have moved off the line, after 100km/h its nice. so no one can give any solutions from mixing and matching diff's ??

my r32 skyline has a RB30DET also, but it has about 550hp at the wheels. (rb25 head) I really cannot see the point in spending soo much money on this... 4.3 is good... there has to be another diff that can fit ??

the central 20 3.9 is very expensive... I also want to run something like a 4.4 or 4.1 there has to be something we can mix and match together... they are just R200's right?

It is a little messy in the engine bay atm, but here is a pic of the car when I tuned it the other night. its very messy, they put some coils from a land cruiser on there and had to remove the top cover. I have alot of work to do under the engine bay... please do not comment on how bad it looks because I know really it looks bad.

Thanks for the quick approval. More info on the car, its an American spec car LHD (sucks i know but its all we are allowed here) , it had a 6 speed in it, Tomei oil pump australian rb30 bottom end (stock) R32 gtr RB26 head with intake manifold and exhaust manifold with the stock twin turbo's tomei oil pump hks head gasket full stainless exhaust 4" fmic hks oil cooler kit os twin plate clutch r33 skyline rb25det 5 speed gearbox lsd diff (standard i believe) Vipec plugin ecu I am a tuner, i tuned the car, it made 380rwhp on just under 1 bar boost, once i get this diff ratio sorted out the car will be complete and the twin HKS 2510's will be ready to go on. I think the car would travel to 350km/h + with this ratio in it, (if it had enough horse power) let me know if there is anything else i have missed out.

Hey everyone! I recently finished doing a RB30DETT conversion into a 2004 350z, it made 380hp at wheels but because I am using a RB25DET 5 speed transmission the ratios are soo far off its really destroying the car, i could only manage a 14.4 second quarter mile it was sooo bad and the quarter mile was finished 2 seconds after changing to third gear because of the 350z's 3.5:1 diff ratio. R33 skyline had 4.11:1 in manual and 4.39:1 in automatic, which suits the transmission fine. What i need to do is change the ratio in the Z from something anywhere between 3.9:1 to 4.6:1 Can anyone help or suggest what to do, i can get access to r33 diff's etc etc but do they fit? what can I do to sort this issue out. any help would be appreciated! Cheers guys