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I just got my Evo VIII and I not to power hungry but I would like more than what I have. Can anybody tell me what basic mods there are to just get 350-375 whp? Thank you! :confused: :confused: :thumb: :thumb:
 

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qmr510 said:
I just got my Evo VIII and I not to power hungry but I would like more than what I have. Can anybody tell me what basic mods there are to just get 350-375 whp? Thank you! :confused: :confused: :thumb: :thumb:
Not too power hungry and you want 350-375 whp? :laugh: That's about 400-450 crank HP. To achieve that you'll probably need some combination of cams, manifold-back exhaust, bigger FMIC, bigger turbo, standalone engine management system, intake system, fuel pump, cylinder heads, and an upgraded clutch to handle the extra power. Probably around $10k-$15k after you factor in dyno time, labour, etc. I'd set aside another $5k if I were you for when the engine blows up, as it inevitably will if you use the car a lot at this level of power.

Maybe you'd be better off trading in for a C6 'Vette? ;)
 

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It's not that expensive, and stuff is easy to install (OK, maybe not cams & exhaust housing).
For dyno achieved 348awhp and 345 torque (91 oct/22psi.);

10.5 exhaust housing
272 cams
Walbro fuel pump
APEXi SAFC
Denso 720cc injectors
turbo back exhaust
manual boost controller
Everything else on the car is stock, stock airbox, stock air filter, stock clutch, stock bov, stock ic, stock ic piping, stock plugs, stock plug wires, stock fuel rail, no grounding kit, etc.


Throw in the intercooler/piping and there's the 350+
http://www.socalevo.net/forums/viewtopic.php?t=9180
 

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Whose/which dyno? I think a stock Evo will make around 220-225 awhp on the Mustang AWD dynos I've seen; Vishnu's dyno yields similar numbers. 350 awhp is around 50% more than that, which works out to around 420 crank hp. I'd expect the combination you cited to make a fair bit of power, though maybe not quite 150 crank hp. But hey, what do I know. :)
 

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I like how you ask for "basic" mods to achieve 375whp, and you're not "too power hungry). :)

There's nothing really basic about it. If you know what you're doing then maybe it's basic. A few of the people who have responded so far know from experience what it takes. The question is, how much experience do you have modding cars? That will determine how basic it will be. And how much can you do yourself - that will also help determine how expensive it will get.

Something to keep in mind before you get started on this journey - until you're done adding parts and tuning the car, it will not be as fun to drive. Once you dig into a car that much there always tends to be bugs that need to be worked out. You might actually miss the simplicity of your mildly modified car, or you might even realize it's too much work and commitment to get the car to that power level and still drive it regularly. Just be careful what you wish for. I only say all this because you sound like you're new to this stuff and you don't know what you're getting yourself into.
 

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turbolarry said:
It's not that expensive, and stuff is easy to install (OK, maybe not cams & exhaust housing).
For dyno achieved 348awhp and 345 torque (91 oct/22psi.);

10.5 exhaust housing
272 cams
Walbro fuel pump
APEXi SAFC
Denso 720cc injectors
turbo back exhaust
manual boost controller
Everything else on the car is stock, stock airbox, stock air filter, stock clutch, stock bov, stock ic, stock ic piping, stock plugs, stock plug wires, stock fuel rail, no grounding kit, etc.


Throw in the intercooler/piping and there's the 350+
http://www.socalevo.net/forums/viewtopic.php?t=9180
this was done on a dynojet i think :thumb:

but what are numbers if youre evo's driveability is shot :cry: just do the basic for now not unless youre ready to work on a lot of dynotime and throwing in more cash ;) :D
 

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blackawd said:
visit automotosports.com and get stage 1 through 4 and you wil be plenty satisfied. :thumb:
Yeah, that's only $8-9k in parts right there. He might need someone to install the parts and tune the car if he can't do it himself. Dyno time, plus labor - Tam was almost dead-on with his $10-15k estimate.

Again, any time you're spending $10k on a car, I wouldn't call it "basic" mods. It's no small project. If you do it yourself, you better know what you're doing. And you better have some extra money in the budget for when things break.
 

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Ludachris said:
Yeah, that's only $8-9k in parts right there. He might need someone to install the parts and tune the car if he can't do it himself. Dyno time, plus labor - Tam was almost dead-on with his $10-15k estimate.

Again, any time you're spending $10k on a car, I wouldn't call it "basic" mods. It's no small project. If you do it yourself, you better know what you're doing. And you better have some extra money in the budget for when things break.
my bad, in order to acheive the 350-400whp all you will need is the stage 1-3 from ams which is only about 4200 minus labor, most of that stuff is no brainers any way. ams street tune is less than 200$ and im sure they have done enough evo's to get you dialed right in.
 

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My personal opinion is:

Cams/Cam Gears
Crank Pulley
Valves Springs and Retainers (only if you upgrade your turbo soon)
Valves (only if you upgrade your turbo soon)
Pistons (only if you upgrade your turbo soon)
Connecting Rods (only if you upgrade your turbo soon)
Manifold Studs (only if you upgrade your turbo soon)
Head Studs (only if you upgrade your turbo soon)
UTEC
Up-Graded Intercooler
Exhaust Manifold (won't be needed if you are upgrading your turbo)
Injectors (700 or higher)
Fuel Rail
Fuel Pump
Turbo Back Exhaust
Boost Control (Manual or Electronic)
Ram-Air Intake
BOV (due to higher hp, stock will leak)

You are looking at about $5500 just in parts, if you look for deals. Some you can install yourself and others, unless you are a mechanic, you have to get them installed; which could be about $1000-$3000. As far as Dyno Testing, most places know what they are doing and can tune the Evo in without breaking your bank....Just make sure you talk to people and find the right place.....Nothing is worse then spending the money and some retard screws up your Evo and you have to spend more money then you wanted...You should be pushing about 350-400 whp with those mods....
 

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A couple thoughts:
  • Some places will bundle up a bunch of go-fast parts and call it a performance "package". However a collection different parts sold together with a modest discount is not a "package". A package is a bundle of parts/mods that have been thoroughly tested and tuned as a combination. If anything I would expect a package to cost more, not less, than the sum of its parts, because of the development time and cost involved in testing and tuning that package--therefore I would be suspicious of any package that came with a significant discount. Ask the vendor how much testing and tuning they themselves have done.
  • If you're going to go the route of buying different parts from different vendors, it's probably a bad idea to throw on all the parts at once. The problem is if something goes wrong or doesn't work as well as you think it should, you may not know which of the parts it is that's the source of the problem. Furthermore, you might end up with a less-than-optimal combination. By adding one mod at a time and testing, you can verify that each and every mod you're adding is adding power. If instead you throw on ten different mods at the same time, you might end up with +150 hp but one of those mods may actually be sucking away 10 hp and you might never know it.
 

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I am rather surprised by the amount of money a lot of people think it takes to get 350-375whp from an Evolution. We have plenty of customers vehicles, and our own personal vehicle making those HP numbers to the wheels with minimal modifications. This was done without spending more than $4000 including labor. Even using an AEM as management it would still be considerably less. If you plan on spending 10-15 thousand you would be looking at well over 500whp when it's all said and done. The only reasonable response IMO came from Turbolarry since that is pretty much the same set-up we have used. The Evo has a very strong engine as a lot of you know and the stock turbo is capable of making those numbers without going to a larger housing or to a larger turbo. Here are two different cars, one was tuned on an S-AFC II, and the other was tuned using an AEM EMS unit.





 

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vtluu said:
A couple thoughts:
  • Some places will bundle up a bunch of go-fast parts and call it a performance "package". However a collection different parts sold together with a modest discount is not a "package". A package is a bundle of parts/mods that have been thoroughly tested and tuned as a combination. If anything I would expect a package to cost more, not less, than the sum of its parts, because of the development time and cost involved in testing and tuning that package--therefore I would be suspicious of any package that came with a significant discount. Ask the vendor how much testing and tuning they themselves have done.
  • If you're going to go the route of buying different parts from different vendors, it's probably a bad idea to throw on all the parts at once. The problem is if something goes wrong or doesn't work as well as you think it should, you may not know which of the parts it is that's the source of the problem. Furthermore, you might end up with a less-than-optimal combination. By adding one mod at a time and testing, you can verify that each and every mod you're adding is adding power. If instead you throw on ten different mods at the same time, you might end up with +150 hp but one of those mods may actually be sucking away 10 hp and you might never know it.
:thumb:
I second that emotion. Package...? Go with the part that has proven to work. One at a time. And get it for the lowest price you can.
A little something else too; I've read in a couple of other sites, "Get all your parts from the same company..." and "go with what you tuner says." What a crock of sh!t! Go with what works.

T71-AWD said:
The Evo has a very strong engine as a lot of you know and the stock turbo is capable of making those numbers without going to a larger housing or to a larger turbo.
:thumb:
Thanks for the dyno charts.
 

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lol man turbolarry knocked that right down :) no need to go with just one brand just go to the one that works or if its cheaper also ;) as far as tuners sometimes they just look whats best for you and they dont want to look bad if it falls thru since theyre the one who recomended it ;) imo talk to your tuner and dont hesitate to ask questions.cant have the blind leading the blind you know ;)
 

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evo_dadi said:
dont hesitate to ask questions.cant have the blind leading the blind you know ;)
:thumb:
The more questions the better. That's why this forum exists; So we learn from each other what really works.
 

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I really thought with the amount of people that thought it cost a boat load of money to make decent whp numbers there would be more responses. Or at least a very good reason why they thought that way. I just hope no one has spent that much money trying to make that power. Before you spend that much please shop around or when in doubt ask someone that knows or can point you in the right direction.
 

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Can't believe I missed this thread!

I spent a total of $6500 on parts for my EVO (until today that is) with the vast majority of the labor being done by me and my daily driver tune for 93 octane pump gas makes 375 wheel HP on a dynapack AWD dyno.



I run the car at this power level every day of the week, and have no doubt it would last years at this power level without blowing up and costing me $5,000 to replace!

I just ordered the GT 35R ball bearing turbo kit from Buschur Racing, along with their alcohol injection kit. These combined should put me around 450 wheel HP on pump gas. Total investment at that point will be $11,000. I could probably make more than that on pump gas with the alcohol injection, but seeing people make 550 wheel HP on the stock bottom end and wanting my stock bottom end to remain in one piece I am "self limiting" my car to 100 wheel HP less than the max I have heard of someone making on the stock bottom end :)

Later,

Keith
 
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