Cosworth Ultra-High RPM Dual Valve Spring / Titanium Retainer Set
 

Anyone running this set? Comments and info?

I am planning to purchase one, just trying to see what people think or thought of it.

Bump, i am still looking for any comments or concerns for this particular set-up.

Also interested :)

I looked for information as well....Cosworth's site had no real information on the springs, so I had to pass....

Most people go with Supertech, Manley, crower. I suggest supertech(i have them), and they are probably the most widely used on the evo.

Kiggly's beehives are money!

http://www.kigglyracing.com/parts/valvespring1.htm

I have them in stock if your interested...

Supertech are known to eat valve seals.

Ferrera valves, valve springs and valve train components are great. Kiggly beehive springs are also one of the best options out there.

Kiggly's have been tested far higher than 99.9% of users will rev them.

Can you PM me a price, or even a general price of what these are worth?

I run the GSC Beehives. Haven't experienced any float so far.

GSC are rated to 9k
FP style beehives are also rated to 9000 +/- "edited based on new information"
Kiggly are there and up to 11,500+ (not sure exactly how much ;) )

Each has a very specific place in the market and work well. The Kiggly's are generally around 450-500 depending on where you order them from.

I thought the GSC springs were only rated to 8500? I have the 5039 springs that use teh stock retainers and have my rev limit set to 8300, never had much need to go any higher than that. Maybe the GSC units w/ uprated springs are rated higher?

http://stikiller.com/product.php?pro...cat=335&page=1

So, did GSC revise their springs, or just rate them higher now? I am 99.99% positive they used to be rated at only 8500...

FP Beehive springs are rated to 9k RPM. You say each have a very specific place in the market, how do the GSC and FP Beehive springs differ?

More info on this?

you must use the supertech valves seals which are smaller in diameter otherwise you run the risk of the springs rubbing on the oem seals...not a big deal really since you have to replace the seals anyway when going their dual valve springs