Rb25DET in 280zx - Must I replace the solid fuel lines? + other questions

[Die$eL 0]

Hi all

 

I'm fitting a RB25DET NEO into my S130 280ZX.

 

I have the bare engine and box, no mounts or wiring harness etc. 

 

I'm planning on squeezing around 400-450hp out without opening the motor. 

 

First question:

- Do I need to replace the solid fuel lines with larger ones or do i just replace the rubber hoses with larger ones? (I'm using the stock tank with a bosch in-line fuel pump)

 

I have seen mention that the RB drops into the ZX using the stock mounts (not sure if it meant stock RB mounts or stock L28 mounts). Either way, from what I see, the stock L28 mounts wont work. I have a mechanic friend stopping by tomorrow and we will place the engine in the bay to see what needs to be done.

 

WRT gearbox mounts, any advice there? I have the stock bits off the L28. Can any of that be reused? 

[Die$eL 0]

any advice?

[grannyknot 29]

I believe to original hard fuel lines were 8mm or 5/16" they may be alright but probably better to go up to 3/8" just in case and replace all the flexible lines as well just for safety sake.

[Die$eL 0]

cool. will do. Thanks. 

The plan is to upgrade the supply lines and use the current supply lines for the return as they are bigger than the existing return.