Can I get you to measure your brake booster an Master Cylinder Please

[ppctx]

I'm having a bit of a fitment issue. I bought a revhard mani (complete turbo setup) off a nico member with my same chassis (91-94 S13). The same turbo on the mani cleared his bmc by an inch, its hitting mine. His is a factory manual, I swapped a manual in. The FSM for my chassis does not differentiate between auto and manual transmission only those or with ABS (with regards to brake booster size). my brake booster is an m23, same as found in the FSM for non ABS vehicles, so... I don’t know what fitment issue is. Yes the 95' and up FSM does show the manual brake booster is smaller than the auto or ABS equipped, but my 93 is not in that category... Measuring at the top of the brake booster, from the firewall to where the booster meets the BMC is 4.25" and the BMC is 6" in length (a total of 10.25") can someone with a factory manual please measure theirs and tell me what you have (again, only need this measurement from those with a 91-94 s13 that came from the factory with a manual. Thank you

[spooled240]

wish i could help, but don't have an s13. Just a thought, maybe the previous guy who sold you the turbo kit re-clocked his engine with the stacked hockey puck trick. It's a pretty common solution for those manifolds with the fitment issues, this would give you about another 10mm.

I know on my s14, the clearance is like a few mm's so I can see the s13's would have a smaller gap since they have a smaller engine compartment.

[ppctx]

Common fellows, give me five minutes of you time, measure and help me out here. The previous owner did not have his engine mounts modified.