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Also just for anyone that wants to know I have had all 3 sets of cams.
S3s are great cams. They are awesome for a mild daily driver.
S4s are great cams. They work great in turbo cars and great in N/A cars.
No springs and retainers needed. And they are the best bolt-on for the SR20 motor.
S5s are JUNK. Dont buy them they break the factry springs. I wouldnt take a free set.
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05 Tacoma 4x4
91 White SE-R built de coming up
well this sucks, here I have S3 cams, and I was thinking about going with something else maybe, as i will probably only see 155 hp at the wheels..
maybe I'll just stick with the S3 cams.. 155 on a 2500 lbs car should be plenty fun for me.
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1991 |black | SE-R
all season tires | hypercoil gen ii springs | shortened koni struts | ST front sway bar | (WTB progress rear sway bar) | octotat 3 point RSTB | octotat 2 point FSTB | ad22vf calipers | carbotech pads | blowd up DE with VE being installed | hotshot cai | ssac header | 2.5" mandrel bent exhaust | wrx STi muffler | UR pullies | jwt motor mounts | B&M short shifter |
How long have you run the S4's with factory springs and retainers? Im looking for cams at the moment and am wondering whether or not to upgrade the S's and R's.
I ran s4's on stock s/r for almost 2 years. Never had a problem. Before that I had S3's for about a year. IMO here is the difference between 3's and 4's on a non boosted car:
S3 cams will be stronger than S4's below about 5000 rpm. Above that S3's will be better than stock, but not as strong as the S4's will be. S4 cams will be about the same as stock to maybe 4000 and then they will pull away. S4's make the most power in the 5-7k range.
So if this is a daily driver and you only occasionally really romp on it, you might be better off with S3's. If you are always running up to 6000+, you'll be happier with S4's. If you want the best of everything, save your money and get a VE.
Yea what about their performance on a boosted car? Which is best for a det?
I think it's going to depend on your turbo size and how many PSI you're running, and what results you're looking for.... low end torque? linear torque curve with high rpm power? all top end?
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| hypercoil gen ii springs | shortened koni struts | ST front sway bar | (WTB progress rear sway bar) | octotat 3 point RSTB | octotat 2 point FSTB | ad22vf calipers | carbotech pads | blowd up DE with VE being installed | hotshot cai | ssac header | 2.5" mandrel bent exhaust | wrx STi muffler | UR pullies | jwt motor mounts | B&M short shifter |
