So Suspension...
This has been the limiting factor for b13 rally cars over the years. The b13 is limited by wheel travel in general so not being able to find proper gravel spec coilovers is a bit of a bummer. Im now expert on this but here is what has been run in the past:
Jvab's - I know he built at least one set... and isn't anymore
Hotbits - Possible plan for me here...
Koni inserts and GC coilovers. Another option but isn't a ton better than what I have now.
Custom one off DMS no idea on this one...
Tom Morris? Cant find info but heard someone had them.
KYB AGX on stock springs. This is what Bubs (forum supporter) is running and has had success - this is similar to what I have now. But the AGX is discontinued so I'm running the excel g2
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My thoughts...
KSport has brand new and I have to say much better looking build spec gravel spec coilovers that at $1500 are interesting.
Bilstein b6 -I know people have built - and I have heard that the 30mm inserts fit in our stock strut tubes. But I'm not an engineer and figuring out the right b6's to run seems to be a out of my wheel house... but id like to try.
Hotbits - these aren't cheap but they aren't as expensive as Reigers or DMS etc. This is what the red car had on them originally and i have heard good things. Also Dexter runs them on his b13 car and its well done.
Subaru GC/GD - It looks like these could potentially work... the dimensions and even the bolt pattern seem to look similar and could work out of the box or with some minor fab... I have a front and a rear cheapo strut ordered from each model coming to my house to see what works... this could potentially be an interesting stock-ish setup and then help me with gravel spec down the road.
My current setup is working fine but it's definitely not going to work long term both for stage rally and as we get faster at the FIRM. I have KYB GR2's with HD Koni bump stops and stock SER springs. The red car has GR2s on ga16 springs. Rumor has it that the NX2000 automatic has .5in taller springs and slightly higher spring rates but I can't find info anywhere. I have some on the way... so we will see.
Factory Spring Rates:
GA16DE Sentra E F -112 R- 101
GA16DE Sentra XE, GXE F-112 R-90
SR20DE Sentra SE-R F-123 R- 112
So that is where we are at. I know that there is another forum supporter who is building a 240sx rallyX car and in his thread, he is trying to figure out similar stuff. So that's where I'm at too... trying to figure out what the long-term plan will be without breaking the bank.