IMO at the rpms that you say your going to run i dont believe you have much to worry about. I would not get the Supertech 120's though becouse of the reasoning Mike stated above. The Kiggley are great springs for all around cams, so are the Supertech 90's both i would say will be more then enough for what you seem to be doing.

Not sure on the IX having titanium reatainers though...sorry!

 

HAHA you beat me to it..

Chris

 

Thanks for the info fellas....any other input is welcome

 

What about the FP ones?

http://store.forcedperformance.net/m...=Lancer-Engine

 

^ I was gona ask that too!lol

 

Bump for info...looks like its gonna be almost a grand to run the M3s

 

I am running the kiggleys with buschur 272's. I love them. I didnt notice any wear on my valve seats (just swapped heads today)
I am on a 2.0L w/35r @ 35psi going to 9krpm

 

i am about to release some new valve train parts in the next 3 weeks for the 4g and for the 4B... they will both use a Pacloy Beehive spring. all i will say is that they are far supiour to the dual spring technology.

the 9 does not have ti retainers both the evo 8 and 9 use some kind of composite retainer... you can actual break one with a hammer and it will crack.. i really didnt look into what they will hold.

as for the kiggly spring kit, you deffinatly wont have a problem. the seat pressure on them is 90 on the intake and 95 on the exhaust at the seat. with out shimming.

 

^ cool, cant wait....Im going to wait on getting the M3s right now....with the cams. springs, and the tool to put them on with the head on the car its going to cost me a grand....I need to upgrade my IC and pipes, they are stock.

 

I'm running the Kiggly springs with BC280 cams. 10,000 rpm without any issues. My advice would be to go with the Kiggly springs. Why go cheap now, then later down the road have to upgrade again. In the long run buying something once is cheaper and less annoying than having to do it twice.

 

We're running the Kiggly springs on a DSM head and have taken them to 10,300rpm so far on .440/.425 lift cams. No issues whatsoever with them.

 

i run kiggly springs..on my evo...they are awesome springs and ive taken them to 10k.. highly reccomended

 

very true

 

I just dont want to be hard on the seats... you think the Kigglys will be ok on a stock head?

 

I pmed FP about their Beehive springs...let see if they respond here?.......