In the market for cams...

[1ViciousGSX]

any of the FP grinds are fine with mild springs (including stock)

its the FPx grinds that have the really steep ramps, and thus require baller springage.WRONG, the FP1x and anything from the FP2x up recommends or requires heavier or dual springs. Only the FP1 & FP2 can use stock springs. :cool:

[Super Bleeder!!]

http://linux.forcedperformance.net/merchant2/merchant.mv?Screen=PROD&Store_Code=FP&Product_Code=FPCamInt&Category_Code=DSM

says right there in plain english "FPCam1x--Requires upgraded valve springs"

[1ViciousGSX]

any of the FP grinds are fine with mild springs (including stock)

its the FPx grinds that have the really steep ramps, and thus require baller springage.http://linux.forcedperformance.net/merchant2/merchant.mv?Screen=PROD&Store_Code=FP&Product_Code=FPCamInt&Category_Code=DSM

says right there in plain english "FPCam1x--Requires upgraded valve springs"Maybe you should read it again. By your first statement above, you claim "any of the FP grinds are fine with mild springs (including stock)

its the FPx grinds that have the really steep ramps, and thus require baller springage."

But it clearly states on that page that the FP3 & FP4 require dual springs. :cool:

[Matt D.]

WRONG, the FP1x and anything from the FP2x up recommends or requires heavier or dual springs. Only the FP1 & FP2 can use stock springs. :cool:
So what are my Crower springs considered as?

[Super Bleeder!!]

actually i can read just fine. :)

FP3 and FP4 cams: "Dual valve springs RECOMMENDED"

FPX cams: "Dual valve springs REQUIRED"


if he's gonna rev an FP cam to 7500, he'll probably be fine if he pays attention to how he shims the springs. if he wants to rev to 9, then hell no!

now quit arguing semantics with me and cluttering matt's thread.

if you'd like to argue further use the PM feature. (-_-)

[Super Bleeder!!]

i believe the Crowers are only 10% more pressure than stock, i'll look into it and edit if necessary.

[1ViciousGSX]

If he's not willing to install dual springs, why bother with a grind he can't wind up the rpm on that 2.0L to go with that large turbo? (-_-) What if he misses a shift, bye-bye valves.

[Thor06]

I wouldnt worry too much about sprigns/retainers. At AF there a guy (95gsx_racer or something like that) that has been running stock springs/retainers on his 272's and hes revves out to 8500, and has done so for many years. Hes a very knowledgable guy and when he still had his DSM he was running low 11's.

[Super Bleeder!!]

http://www.engintecs.com/html/valve_springs.html

[Matt D.]

I've done a bit of looking for info on the HKS 280 cams and can't find anything about them. Do they require springs beyond what I have?