Hello, Hope everyone is doing well. I would like to make some power, safely as i daily drive it in summer. It was tuned before by previous owner but virtual dyno. Right now i might be at 300 i just want it a little bit more. I was thinking about a magnus intake manifold and artech exhaust manifold. Will it be a good decision? Hows STM for tuning evo 9s?
I have an evo9 with 105k miles. I have couple of bolt ones
*ETS intake
*ETS IC pipes
*Screamer pipe/ O2 dump
*Boost controller
*Turbosmart bov
* 3 inch straight pipe
* 1000cc injectors (not plugged in yet)

 

Alright, lets get this out of the way, everything below is my opinion and how I personally like my street cars to respond.

I would skip the manifolds. The intake manifold is just going to more the powerband higher in the RPM range which isn't how I would want a street car. Same kind of logic for the exhaust manifold plus the money is better spent else where.

Based on what you have, the easy button is E85. I am not sure that you have access to that but it really is amazing how much different it makes the car feel. You will likely need a fuel pump if you go this route as E85 requires a lot more fuel.
The other thing I would look at is probably cams. They can make a pretty substantial difference in power as well but given the daily situation this might be more than needed. If you do go for cams, GSC S2s are a very popular cam. They make good power while being mild enough to drive without sacrificing drivability.

As you said, you want it reliable so I would probably just go with cams and a dual map 91(or 93)/E85 setup. The E85 tune on the stock turbo will make 400ish whp which is a solid start for a street car.

Lastly a comment on STM, they are solid and well known in the USA evo community. I'm sure they would do a fine job tuning the car.

 

Hello Ryan,
Thank you for commenting. Unfortunately we do not get e85 in canada so this is out of league mod. i guess i can put my money somewhere else than manifolds then

*yes, I heard alot of good review about GSC S2s and it sounds brutal too but is Kelford 272 a better cam for the buck? I do not know, i am just asking cause my cousin from Melbourne was saying this, he has an evo 9 too.

*Even if i go for aftermarket cams, is it just the cams is what i need? Or need to change the spring also?

*With the stock turbo with 94 oct can i achieve close to 400awhp? Will it damage the turbo or anything?

* Ok, i will take it to STM, i do not have any tuners near by. Other than going toronto for Dynotune Racing or like some others.

 

I think you need to ask yourself what the goal for the car is. Targeting a specific HP goal without a defined use case is just going to lead to a car not doing what you want. In my opinion, you should just get a solid tune on the current stuff and enjoy it if its really a daily. Anything to get you into the 400hp range on pump gas would be giving up too much for a "daily" in my opinion.

Now, I'll still answer the rest so you have info.
To do the cams, you would need to do springs and retainers. I always forget to list that as I just assume people know that, my bad, you are correct.
I would skip the Kelfords and go for the GSC; they have ben shown to make more power everywhere in the RPM range.

The stock turbo on pump gas won't make it to 400hp. You'd need something the size of an FP Green or Red to get there depending on fuel quality and how aggressive you want to get with the tune. I have had both of those turbos and the stock one and I think for a 100% street car on pump gas, I wouldn't give up the spool for either of those turbos. I have never personally had the HTA-71 I think they call it but that "might" get you there with less spool sacrifice.

If you get a solid tune and maybe cams/springs on the setup you have, I think you'd have a pretty reliable and fun street car.

STM can also talk you through this stuff. But I want to say it one more time, don't focus on the number so much and instead how you want the car to act. My 500hp FP green setup was way more fun on the street than a friends big turbo 900hp setup. That's an extreme example but this is true no matter the power level. The most fun street car is something that super responsive in my opinion so that's the route I would go.

 

i just my evo 9 wagon from Japan. It's fully Stock and I'm located in Canada. Looking to make a very responsive and reliable 400-500hp daily. Which route did you go to make that power level. Any help is appreciated. Also the FP green set up you're talking about, can you please elaborate as to who supplies the products and tune that will be needed. Thank you in advance.

 

I had a green and then a red... you an make a ton of power and DD really comes down to the tuner and part selection. I could DD my 800+whp Evo if i wanted to.... when my evo was my primary car i drove around 450whp on a FP Red. From my experience you'll get more then want more. I would say go FP Red but depends on the money situation. I also was using Aquamist at one point which I'm not sure is the most reliable but an alternative to E85's easy button but you certainly have to check everything frequently and rebuild the pump once a year to be safe.

These are very old numbers and tuning has come a long way since this.... but gives you an idea, go with the Red makes nice power I'd bet you can get 400 on pump gas and be happy with it but like i said you'll always want more

FP Green: 350WHP/305TQ (made closer to 400 on meth injection)
https://www.evolutionm.net/forums/wa...en-w-meth.html

FP Red: 540/490 on E85HKS 280/280 cams
BR Double Pumper
AMS intercooler piping, Intercooler, Exhaust
TSC SD intake
Omni power 4 Bar
Grimspeed EBC
FP Exhaust Manifold ported
MAP Ported Stock Intake Manifold
MAP Ported Stock TB
FP RED
1250cc injectors
Spoolin up COP

 

First let me say that I am stupid jealous of the wagon. I love them and am incredibly disappointed I likely won't be able to afford one when they are legal in the states. If you decide to let it go or want to trade for a sedan in the future, hit me up lol. We will work something out.

Now for the questions, Forced Performance is where the green and red are from. They are very popular in the states because there are stock replacement and make excellent power.
If E85 is an option where you are, the green would get you to about 500 wheel and be very responsive; however, a quick google search says that likely isn't an option for you. So the red will make more power and get you closer to the 400-500 goal but for me in a street car, response > everything so I'd personally go with the green on a true daily.

Go look at the dyno section for specifics of the green vs red on pump gas, this will give you a better idea of what kind of power and where you'll make it to help inform your decision.


For everything else, you'll likely want cams, spring and retainers to help it breath better; my personal suggestion would be GSC S2s with GSC springs and retainers. You'll also need more fuel; if its just a pump gas car, a walbro 255 drop in with some 1000-1700 cc injectors should be plenty. You'll also need a downpipe, exhasut, upgraded map sensor (i use the omni 3-bar) and maybe an intake depending on if you stay MAF or go speed density.
And then obviously a tune; there are quite a few remote tuners in the US but do your research and find one that you trust.

 

There will be a gazillion people wanting to trade their wagons for your sedan lol nobody really wants these except a handful of people and they're a fraction of the cost of a sedan here in Canada. The market wont be different for the USA trust me. Youl easily be able to get one when they're legal in the states by selling your evo and have much more left over cash.

 

God I hope you are right. From what I have seen with other low production JDM cars that get legal here, the prices get high quick.

 

They will be bewtween 15-30k. Based on cad prices now and how other jdm cars went up when legalized in the usa. While cool, most people who buy the older evos get it for its performance and heritage. I've had actual nightmares that my evo turned into a wagon. The though of an evo not have those signature tail lights and wing and a big metal box to replace it gives me anxiety lol

 

Man, that would be amazing. I can tell you that if they stay in that range, I'll be making a purchase lol.

Yea, I love the way that the sedans look too but I love wagons. Just a silly car lol.

 

I paid over 50k CAD for mine, was rated 4 at the auction and came with 68k kms pn the clock. Any of the cheaper ones were either rusted and had high mileage on them.

Thank you for telling me about the turbos and will definitely check out the dyno sheets for info and you're correct I do not have access to E85 but I'm sure I could buy some from my brother inlaw as he uses that in his 300zx from time to time. Pump gas will definitely be the tuning route I will be going for sure. Will slowly start buying/budgeting for the parts that will be required for optimal response and power.

 

I'll tell you right now that if I can get a kind of rusty one for 15k when they are legal, I would my next daily lol

 

I would skip the manifolds. The intake manifold is just going to more the powerband higher in the RPM range which isn't how I would want a street car. Same kind of logic for the exhaust manifold plus the money is better spent else where.