In the next few months my EVO 6 is showing up from Japan.

Goals of build: up to 500whp

Reliability
Fun
Simplicity
(I know pic 2)

My ideas but I'm open (why I'm posting).

Rods/Pistons
injectors
Pump
Flex fuel tune
intake
Intercooler and pipes
FP GREEN
CLUTCH
2.2? Or leave stock crank. Thoughts?

Exhaust. But want to keep it quiet until boost so maybe a boost activated wastewater cutout (I saw English racing had this years ago where the downpipe would vent to atmosphere based on a boost setting. I know it gets loud then. For cruising I just want it to be quiet.

I'm in Indiana. I can drive. What shops are good for this. I've been out of evo since 2015.

 

Alright time to make my obligatory post on some one asking what to build lol.
I wouldn't focus on the final HP number so much and instead how you want to use the car. If the goal is a responsive street car or a drag car, the build totally differs. Targeting a specific HP number can very easily lead you down a path of building a car that doesn't respond the way you want in the situations you plan to drive it. Be honest with yourself about what the car is, build it to excel at that and you'll end up far happier than a compromised build that hits "XXX whp".

Now with that out of the way, I don't know much about the 6, is the bottom end the same as alike an 8/9 or is it more similar to a DSM of similar vintage? This question will answer a bit about power limits on the stock bottom end.

To met your goals in the order you posted, I would probably go with the list below
Engine: Stay stock bottom end. This will give you the best reliability assuming you don't make too much power.
Turbo: That green is a great street turbo, that would be at the top of my list
Injectors: I have the ID1700x for my flexfuel 9 and they are great but anything like 1300cc or bigger would work.
Fuel Pump: This is probably the one most people will disagree with but I would run a walbro 255 with the relief valve punched. This is what I had on my stock bottom end 9 with a green and E85 and I made 500whp. It also simplifies the wiring and fuel setup because it can run on the stock wiring and use the stock fuel pressure regulator. It is also a nice limiter to keep the stock bottom end alive lol.
Clutch: On my green setup, I ran an ACT HDSS and it was a really solid setup. A little heavy on the pedal but lasted a long time and held the power well.
Exhaust: No idea what brand for the 6 but with the turbo, 2 resonators and a muffler, my 9 is pretty quite. The boost activated cutout is way overkill on a street car.
Intercooler: No idea for the 6
Tuning: No idea on the 6, if its like the 8s, there is a free flexfuel patch you can use.

Let me know if you have any questions about why I picked what I did, most of what I have listed is stuff I have personally used and liked.

 

This is precisely why I posted here. Thanks for your feedback Ryan. It's funny how we(I) chase numbers.

You wrote

"Alright time to make my obligatory post on some one asking what to build lol.
I wouldn't focus on the final HP number so much and instead how you want to use the car. If the goal is a responsive street car or a drag car, the build totally differs. Targeting a specific HP number can very easily lead you down a path of building a car that doesn't respond the way you want in the situations you plan to drive it. Be honest with yourself about what the car is, build it to excel at that and you'll end up far happier than a compromised build that hits "XXX whp"."

What I "WANT" is the torque of a tesla dual motor and the weight of an ariel atom and the reliabiltiy of a Camry. Okay, I'll quit being a wise-***. (not directed at you)

Okay, to be realistic...fun responsive street car. Autocross capability (yes, I didn't address suspension, that is another time). Torque is fun (although I don't want to break stuff) so I don't want to move the power band to the right.

From preliminary research it seems like 400lbs of torque is the max for the Evo 6. I will stop significantly below that because if you're saying not to touch the rods/pistons then I will likely not do that. Probably 330-350lbs. But this is preliminary research.

I had an EVO 9 with 415WHP and 400lbs....on E85. Some turbo surge (I think) issues with that much boost and that little housing. You are able to generate 500 hp on your stock rods/pistons?

Can you recommend a shop? The days of AMS on EVO are over. I will do my own research but good to see who is still doing stuff.

 

Isn't that what we all want? lolol

So if you are looking at autox and the like, I would look into the HTA-71 from Forced performance. These turbos are a great spot bc they make notacibly more power than a stock turbo while staying as close as possible to stock spool. The Green is slightly larger both turbine and compressor so it spools a bit slower for a bit more out top.

If 400ft-lbs is the max, that is quite similar to the 8/9. So I would leave the bottom end alone assuming it is in good shape for reliability and focus on making a responsive setup from there.

Yes, on my stock bottom end, stock manifolds, E85, FP Green setup, I made about 480whp/400wft-lbs. Full boost was on around 4200rpm.

The shop thing is hard. Buscher in Ohio seems to still be doing evos, TSComp in PA is very good but a bit hard to get ahold of. I do most of my own work so I am not super up to date on whos all around yet.

 

Thanks Ryan.

I saw your signature specs 580awhp/510awft-lbs and thought (my bad assumption) you had done that on the stock bottom. I was like...yikes! Makes sense you kept the torque at 400ish on the GREEN.

Okay, good thoughts and suggestions. I have to do some research to be sure on the bottom end but can't imagine surpassing 400lbs of toque is ideal or even coming that close. This is right hand drive so I will have to practice shifting with my left hand (LOL) Maybe I can get a job delivering mail for the USPS.

I'll look into Boostin also. Bottom line is simplicity to meet the goals is good. This car should be 3,000 lbs so it's fairly light to begin with.

 

Yea lol, thats after I had a timing tensioner fail and wreck my motor. Built it, replaced the head, moved to the Red and a double pumper fuel system and basically added 100whp/100wftlbs from the stock block green setup with the same spool.

I mean honestly, IF you want the most reliable option the stock turbo or something like the link below is the way to go. The linked 18k is a stock Mitsubishi turbo so they are really solid. And at 54lb/min of air, thats a lot of turbo.
https://www.forcedperformance.shop/c...18k-for-evo-ix

Also here is a link to the HTA71 super core. I have never used this but it gets rave reviews from auto-x guys I know. And this is a simple bolt on setup you could likely install yourself.
https://www.forcedperformance.shop/c...-ix-71hta-chra

Boostin is a solid option.

 

The evo6 rods aren't as strong as Evo8/9. A rod/piston engine build is a god idea.

 

Good to know. I wasn't 100% sure if it was the same or different.

 

Undoubtedly you've gotten your 6 by now and have probably started your build. Congratulations!!! They're awesome machines.

I'm late to jump into this discussion but having previously owned an evo 5 rs, I wanted to find out from you what type of evo 6 did you get? RS, GSR, RS2?

 

Hey

It got off the boat in Jacksonville Tuesday. It cleared customs yesterday and I should have my guy get it today. Then ship it to me in the fly over midwest.

Evo 6 gsr. I'll send pics once I get it.thanks.

 

I am guessing this can be also said for the V ? Weak rods ?

 

No clue myself but I think it's a safe assumptionm. Can't see why they'd get weaker but then again stranger things have happened.

 

You are a few hours from Boostin performance and they have a great track record.
If you want a fun street car here is what I would do.
94mm crank, carrillo rods,cp pistons 9:1
Fp Green Mhi 18 psi wastegate actuator for pump gas or 25psi wastegate actuator for ethanol only if you are going to swing for the fences.
Ethanol content guage. Flex fuel tune. ID 1300 for pump gas or ID1700 for Ethanol.
If the 6 has shorter gearing consider going to Evo 9 first gear and Evo 8 the rest.
ACT HDSS Is a decent clutch for that power.

 

Awesome.

Good recommendations. If there is someone to listen to it's this guy!!! And for sure Boostin is the answer.

 

@Abacus

What brank crank would you recommend?
Thanks brotha!