srajeremy

iTrader: (5)

i've searched but i cant seem to find...anyone that uses bc valvesprings how high of an rpm do you set redline? are they same as stock? i know gsc rates theirs at about 9000 rpm for the single springs are bc rated to the same?

gsrboi80

iTrader: (38)

I have them and my 120k mile evo sees 8K pretty often without issue

JohnBradley

iTrader: (30)

12,300 miles.

8300 frequently, 8700 once or twice. That was nothing I didnt do to the stock valvesprings which got pulled at 28k for these. I am very happy it didnt end up sucking a valve, the springs just suck. This was the only broken one, the rest were severely sagged out. To this day BC denies there was any issue and any warranty.

For 8500-8700 I recommend GSC or FP beehives, beyond that Kigglys.

Teal2nnr

iTrader: (7)

I dunno I thought Supertech duals were pretty good, Kiggly's I also hear are good. Might want to stay away from BC's

epson1

iTrader: (2)

I have the BC single springs and my car has seen 9k probably 15 times at the track and haven't had a problem with them yet.

srajeremy

iTrader: (5)

wow thats horrible...does this happen often with these? anyone else have the same experience?

GdotRegEvo9

iTrader: (9)

i have bcs and have been using for 6k miles. no problems at 8k redline

EvoFlash

iTrader: (7)

I have bc go to 8500 often no problems.

EriCS

iTrader: (9)

Why risk it you get what you pay for! The GSC springs are suppose to perform well from what I heard. I never hear anything positive from BC products.

gsrboi80

iTrader: (38)

I bought them years ago and they have been in my car for over 60k now. Some of the parts avail today were not even on the market yet.

I'll go with something higher end once the engine is built

JohnBradley

iTrader: (30)

These are the only springs other than stock (DSM not Evo) I have ever had break. The thing is use at your own risk though obviously. Even if they had warrantied them after a break would you put them back in? What if it had sucked a valve, I know who pays for that. i have pulled them out of pretty much all our customers cars since I dont trust them anymore.

The long list of fail from that company really leads me to think that if you cant trust a stroker assembly, cams, or valvesprings, its probably best to look to known good products for the Evo.

Maybe the BC stuff works better in non-Mitsus?

Aaron

n2oiroc

iTrader: (33)

nope, their subaru stuff sucks too.

srajeremy

iTrader: (5)

really theyre similar in price ive found the gsc springs cheaper on some sites than the bc.

JohnBradley

iTrader: (30)

GSC and the FP Beehives reuse the stock retainers so it keeps the price down.

dustin213

The picture posted is a CROWER spring and retainer not a BC.