Evo 9 problems
#91
Account Disabled
Insufficient clearance between top of valve guide and retainer at full lift?
Failure to measure properly when fitting the cams.
Yet another problem to eliminate.
Failure to measure properly when fitting the cams.
Yet another problem to eliminate.
#92
EvoM Guru
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#94
EvoM Guru
iTrader: (1)
Nothing wrong with S1's. They make a little more torque, power up top on small turbo's is good to about 500whp before the S2's will start making significant gains. And for a car that is just street driven, the much smoother idle of the S1's gets the nod.
#95
Evolved Member
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I thought the stock 9 would be plenty enough for me when I traded my modded wrx in. My 9 didn't last 2,000 miles before I added some power mods. Lol
If you're already getting beehive upgrades, it makes more sense to me to get S2 so that when you upgrade your turbo, you don't have to upgrade cams again. Talk to those that went through S1 and S2.
If you're already getting beehive upgrades, it makes more sense to me to get S2 so that when you upgrade your turbo, you don't have to upgrade cams again. Talk to those that went through S1 and S2.
#97
Evolved Member
iTrader: (1)
Stock vs S1 vs S2
Strange that S2 looks like it makes power faster than S1 as turbo is spooling up. Could be a glitch.
Last edited by 2006EvoIXer; Jul 28, 2017 at 08:26 AM.
#98
Evolved Member
iTrader: (1)
From reading further, the MIVEC will help with the low end difference. Idle is definitely smoother with S1.
For me, I didn't add cams because I chose the hta71 upgrade over cams, so until I build up my reserves, I'll most likely get the S2 with beehive springs and retainers. On E85, 1st gear acceleration is at traction limits of my tires, so I don't see the benefits of S1. Normal freeway driving will be nicer on S1 for ease of passing, but there should be plenty of power on S2. Both are great sets if cams, so you can't go wrong either way.
For me, I didn't add cams because I chose the hta71 upgrade over cams, so until I build up my reserves, I'll most likely get the S2 with beehive springs and retainers. On E85, 1st gear acceleration is at traction limits of my tires, so I don't see the benefits of S1. Normal freeway driving will be nicer on S1 for ease of passing, but there should be plenty of power on S2. Both are great sets if cams, so you can't go wrong either way.
#99
Evolved Member
we have super smooth, 950 RPM @ 14.7 AFR idle with S2 cams on E9...
#100
EvoM Community Team Leader
iTrader: (60)
I thought the stock 9 would be plenty enough for me when I traded my modded wrx in. My 9 didn't last 2,000 miles before I added some power mods. Lol
If you're already getting beehive upgrades, it makes more sense to me to get S2 so that when you upgrade your turbo, you don't have to upgrade cams again. Talk to those that went through S1 and S2.
If you're already getting beehive upgrades, it makes more sense to me to get S2 so that when you upgrade your turbo, you don't have to upgrade cams again. Talk to those that went through S1 and S2.
Not on a stock turbo, they aren't.
#101
EvoM Guru
iTrader: (1)