Anyone have any experience with "Summit Brand" coil-over springs?
I've wanted to try heavier rate springs for a while now and after trading emails with Shaikh @ FCM, it looks like I'm good to 500/325 (+/-) with my current valving. Both front and rear are 7" tall springs with 2.5" ID. Here's what I found on summitracing.com:
0700.250.0500 - $79.69/ea
0700.250.0325 - $79.69/ea
Eibach is known for making good stuff, but damn its expensive! Plus the Eibachs are universally backordered errywhere until the 22nd-25th and my track event is on the 31st... add shipping and I have no time to get them installed and the car aligned.
7-550 - $37.95/ea
7-350 - $37.95/ea
QA1 also has a good rep but the rates are higher than what I'm shooting for. Bonus points because they are cheap and in stock.
SUM-72-5500 - $34.95/ea
SUM-72-5325 - $34.95/ea
Summit has exactly what I'm looking for, plus its cheap and they claim to be made in MERIKA! but are completely unknown. There is some FUD on the interwebs that claims QA1 actually makes these for Summit, but it has yet to be confirmed.
I'm open to other options/recommendations/brands as well.