which H&R Sport springs for the M42?

[UpOn3]

ready to spring for a set H&R Sport springs, but wondering whether the 50404 (specified for my 91 318i) or the 29664 (for the 84-85 M10 318i) is best if I want a bit more drop and stiffer. I read here on the forums that the 29664 has a slightly higher rate. The H&R application chart says the 29664 is 0.1" lower, but I suspect it will be more than that since the M42 cars are a tad heavier. I've also read that the 50404 is not as low as stated on the M42 cars and to convoluted things I read that, 50404-55 (325 OE Sport) is sent even if you order the 50404, which makes no senses at all.

Regardless the 29664 sounds like what I'm looking for, but am I overlooking something negative about the 29664?

I know there is also a 50404-77 which is their Super Sport (is that same as Race?) which is stated to be a 1.7" drop (vs. 1.3" for 29664) and therefore not a big difference, but I don't want to have to worry about my low oil pan w/o skid plate, or will I have to w/ the Sport spring and stock ht tires???

Thanks for the advice.

Also curious whether anyone is running Bilstein Tourings with H&R Sport springs? I'm planning on going with Billy Sports, but like comfy rides. Car will only see occassional track and 8/10 street driving. E46 w/ ProKit and Billy Sports is a tad stiff for DD, so don't want to repeat that ride. On other cars, Billy Sports were perfect for me. PSS, underdampened in a different car, so hard to guess what Billy Sports are like in the E30.

[Roysneon]

I wanted H&R Race springs for my 84 318i. I ordered from my friend's shop and just told him I wanted H&R race and the model, I ended up with OE sport. Left it at pretty much stock height. Just order from a reputable vendor that sells on r3v and tell them what you want. Or buy the H&R race, they are only specified for the M3.

[jrobie79]

I have e30 M3 H&R race (you wont find race's specified for any other e30) and they fit fine and I dig the drop. Perfectly streetable with billy sports too.

[UpOn3]

thanks. how much does the E30 M3 Race spring drop a 325i or 318i?

[word is bond]

I'm also confused by this. And what about HR 50406 (M3 Sport Springs), which come in a package deal with Billy Sports from Turner? Turner Lists them for 325i and 318i, but looking at the part #s, they also list the same exact package for M3s

[QUKBMER]

I dont know the H&R part number but , i used e30m3 H&R sport springs w/billy sports struts/shocks in my dads 91 318is and works just fine and great ride too.