does anybody have any info on the 280zx jdm spec? i have tried looking everywhere but to no avail. now most of googles search results come up with either info i have posted or questions i have asked. i know i have the different manifold but i have no idea on what it does in different power/torque specs compared to normal. someone once told me it's a 20rwhp difference but nothing to back it up. any info would be greatly appreciated thanks

 

As far as I know, Japan never got the L28 in a Z. It was an export only. If there was no JDM spec 280ZX, that may be why your searches are comming up short lol.

 

If I remember correctly the JDM 280zx was still called the 280z or Fairlady Z or w/e. Search under s130 it'll be easier to find by chassis when you do the searh.

 

ah that would explain the badge on my centre console then as it said fairlady 280z. had a bit of a squiz. apparantly 170hp. i'd be stoked if it is

 

I believe both the L20 and L28 were options for a few years.
Fairlady Z would be the base model with the L20. Fairlady 280Z is of course the L28 model.

I don't know of any differences in manifolds for JDM cars back then.

 

P75 manifold instead of the P72 i have seen on everything stock

 

looks to be from the same or very similar molds. Just different emissions garbage on it. I doubt it makes any more than a 5 horsepower difference if any.

There was probably a 20rwhp difference from the L20e to the L28e due to it being a larger engine.

do you have an Austrailian 280ZX? what engine comes in yours if you do?

 

longer runners but no it's a japanese import. where do i get the 2nd number i've got the n42 from above the spark plugs but is that head or block code