I wasn't sure. Good info. Thanks.

 

How long are you wanting to stay at said 350hp? Everyone always wants more, so im not one to buy the same parts again and again. If youre not going to go over 350hp for a long time then i think all the advice given is great. Id also stay with the s1's and a smaller fuel system.

 

For a while probably. I have an MR and dont really want to make too much power because of the trans. I spoke to my tuner about the s1s and he said I might as well stick with the stock cams. He must not think highly of them.

 

Who is your tuner??

I've made the power in my sig on a 6spd. The car is used for autox and Time Attack. The 6spd isn't the slouch it's rumored to be, assuming it's taken care of. I only run e85 on GTA events, though. Just some extra info for you.

 

john "jestr" from titan motorsports is my tuner

 

Interesting. I've never heard anyone recommend stock over S1s before, given your power goals. I'm sure he has his reasons, though.

 

If you have an 8 MR I believe any set of cams is an improvement over stock. If he has a 9 MR the stock cams can still produce good results with the Mivec. For the money spent on cams there are cheaper and better options to make power. I had no desire for cams but since I had to replace my headgasket it was a good time to upgrade to S1's and I'm more than happy having them as it was a nice improvement over stock. I hope that was helpful.

 

9MR actually and Ive gone through most of the cheap options and this was what i was going to include along with them. What gains am I suppose to see with s1s if you think stock cams would suffice? I was under the impression of 20-30.

 

some other info for ya: going from stock to Greddy and Tomei 265s (i have used both), my old dyno sheets show 30whp peak, but about 60whp from about 4000-5500 rpm. i think peak tq was about 40-50ftlbs more. i road race the car, so i am focused more on "right now" power.
the S1 won't make any of your peak numbers look exciting, but if you want a car that pulls like an N/A V8 then you might want to give them further thought.
i'm 99% sure the S1s are even better. i think you would need to get pretty extreme to make 350whp on stock cams, though i have no experience with 92 oct. maybe someone else can chime in on that.

if you're worried about the cost:whp ratio, have you considered a used set? i buy all my cams used.

the best part of using cams, is that you get a bit more power any time you make any other mod (within reason).

sorry for the novel. just trying to help out with as much info as possible LOL

 

Or just scratch all these ideas and spend a few bucks on a fp green and make that super easy and be done. My buddies 9 made 308hp with literally a self made 3in exhaust and a tune at switzer when he used to tune evo's. Im sure with your supporting mods and the boost cranked up you'd be able to reach your goal for sure. Many ways to do it just have to decided how you want to go about it. Personally, id buy a green and get a tune. bolts on, easy install, no sweat!

 

If you are going to do cams go S2's or nothing. S1's are a waste of money in my opinion. There are countless threads out there where tuners did S1's vs S2's and they all say the same thing.... No loss in spool, only power gained up top. Why not have a cam that will give more HP and leave room in the future. The only downside, you need springs and retainers. If you plan to drag race or even rev the car a little, I would suggest them to be safe anyways

 

because some drivers have other goals for their cars, such as increased, "useable" power. if OP's goal is 350whp, why not make power and torque sooner and still end up with the same peak HP? an S1-equipped car with 350whp will be faster than an S2 car with 350whp.
if OP plans on making more power in the future, then i'd suggest the S2 as well.

*edit the whp in my sig is on Greddy cams and a MAP 2.5. I have stock idle, vacuum, etc. No upgraded valvetrain and I pass smog with flying colors, if any of that is a concern for you.

 

There have been numerous tests that state otherwise. S2's don't lose any power at all down low but add extra up top. I don't know about you but useable power is having a good rev range. On a stock turbo that is 4-7K all where S2's will outshine S1's and make more power.

 

OP isn't going for max power and if you can show me a graph where S2s make more power across the board than S1s, then I'll take back everything I said. I have no problem admitting I'm wrong.
Then again, it's possible Greg @ GSC doesn't know what he's talking about. :-P

 

[QUOTE=JohnBradley;9174874]S2 has no loss in low end on the Evo IX. Its the beauty of MIVEC when done properly hides anything that might be negative.

Here are some dyno graphs to show what I mean-

https://www.evolutionm.net/forums/ev...370ft-lbs.html[/QUOTE]

There are plenty more threads showing the same statements and tuners who back up the claims.