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Engine - Turbo & Block Modifications and upgrades to maximize your Dodges turbo output & Improving strength and durability - pistons to crank.

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Old 04-09-2013, 07:39 PM   #1
The Low 400  
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How to break into a solid, reliable 400hp with a 2.2T? A question
maybe 6.37% of us ask. I don't know the answer, but I'd like to.

Stipulations: Built to last. ~24PSI max. No meth injection, no Nos.

How does one do it? Parts list?

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Old 04-09-2013, 07:51 PM   #2
Re: The Low 400  
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Stage 2 (over 20psi) How to build thread

http://www.turbododge.com/forums/f4/...ng-beyond.html

Must read! :)
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Old 04-09-2013, 08:43 PM   #3
Re: The Low 400  
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If you want 400hp without going over 24 psi you are gonna have to spend allot of $$$ on your intake to exhaust, getting air in and out faster. obviously a forged/arp bottom end is a must. valvetrain upgrades are also necessary. A good reliable transmission is a must.

here is my hypothetical no money limit list:
  • custom big plenum / ported 58mm tbody
  • ported big valve head
  • custom exhaust header
  • big turbonetics or garrett BB turbo
  • beehive springs
  • pt lifters
  • big cam, f4 or f2
  • Carrillo rods
  • custom forged pistons
  • all ARP fasteners
  • big efficient FMIC, probably same side in/out OR water-to-air intercooler
  • #4 coolant mod
  • electric water pump, reverse cooled.
  • adjustable FPR
  • billet fuel rail
  • braided stainless lines for everything

probably allot more needed than that, but that would get you close.

Don't forget your monitoring/tuning tools:
  • Wideband O2/gauge
  • Boost/vac gauge
  • trans temp gauge
  • fuel pressure gauge
  • egt gauge
  • ostrich/laptop
  • mptune

I know you don't want meth injection, but it would make the system much more reliable and efficient.
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Old 04-10-2013, 04:49 PM   #4
Re: The Low 400  
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400WHP or just 400CHP? (around 340-350WHP)

Other than a good built CB with forged pistons (not totally needed, but you said reliable) your going to need a good ported head with custom intake and F4 cam at bear minimal to make 400WHP @ 24psi or less. You don't need a header, but it will make it easier IF it's built right. Also going to need a 60mm turbo or larger, this will be key as most are not very good at matching turbos for max response + huge power.

The Charger is a perfect eg. of what your looking for. Going on it's 8th year without an engine tear-down, all I've done is change a few H/G's over the years.

Get's 38+mpg on the hwy and can drive it anywhere.

making around 550WHP @ 39psi boost (about 630CHP)

BTW, I've been meaning to write up a stage 3 build thread, so it would give you and others a clearer picture of going from stage to (400WHP max) to stage 3, apply named beyond +40 inj's.

If anyone is curious, I consider the Charger to be a stage 3 car. Then I can add a stage 4 (final frontier) thread to finish things off :)

Willing to bet it's making 400WHP+ @ 24psi
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Old 04-10-2013, 05:19 PM   #5
Re: The Low 400  
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Shadow I would love to read a write up on stage 3+! If you can talk about transmission stuff also that would be amazing to read.
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Old 04-10-2013, 06:18 PM   #6
Re: The Low 400  
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Hopefully I can find the time to get some of this done.

Now I never metioned anything about exhaust because I assume everyone knows how important it is by now. (I shouldn't really assume this)

So just in case, your going to want the most free flowing exhaust After the turbo possible. 3" minimum mandrel right off the turbo or you will never pull off the #'s your looking for, specially on the target boost that you want.

I'm also assuming this is all for an 8v build, correct? (otherwise this all get's much easier)
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Old 04-10-2013, 06:34 PM   #7
Re: The Low 400  
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Yellownoma I blew through that Stage 2 write up, great read!

Would love to see you do a Stage 3 writeup Shadow. +1 on Detroit for transmission info, so things don't go snap.

To answer: Yep 8v, and WHP not CHP.
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Old 04-17-2013, 07:42 AM   #8
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great info,i cant wait for that stage 3 write up
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Old 04-19-2013, 11:37 PM   #9
Re: The Low 400  
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To be clear the stage 2 has some porting and a bigger turbo. But is going to be higher PSI for the power, but a S50 stage 2 setup will hit 400 WHP.

The stage 3, like Shadows car has more VE or engine flow before boost. So the power compounds higher per PSI. So a bigger cam, a big intake plenum and a big Holset over the stage 2 build basically will get more HP per PSI.

I also wonder how many people really know what 400 WHP is like in a FWD car lol. It sounds really good but it is like hunting rabbits with a 50 cal. Shadows Charger on the street with race gas is like hunting dear with a M1A1... Look into expensive speed controlled electronic boost controllers lol
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Old 04-19-2013, 11:48 PM   #10
Re: The Low 400  
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To be clear the stage 2 has some porting and a bigger turbo. But is going to be higher PSI for the power, but a S50 stage 2 setup will hit 400 WHP.

The stage 3, like Shadows car has more VE or engine flow before boost. So the power compounds higher per PSI. So a bigger cam, a big intake plenum and a big Holset over the stage 2 build basically will get more HP per PSI.

I also wonder how many people really know what 400 WHP is like in a FWD car lol. It sounds really good but it is like hunting rabbits with a 50 cal. Shadows Charger on the street with race gas is like hunting dear with a M1A1... Look into expensive speed controlled electronic boost controllers lol
Oh, but you have to have more power to weight than a ZR-1 to have fun!
Corvette ZR-1: 3350lbs / 638HP = 5.25HP per pound.
Charger GLHS: ~2400lbs / ~400HP = 6HP per pound.

Hell, even a Lamborghini Gallardo Superleggera is less power to weight than the Charger would be. 3200lbs / 560HP = 5.7HP per pound.

As you can see, that would just be damn ridiculous in a car not originally designed to go faster than 85mph.

Shadows charger probably weighs even less than that, and is 550hp.
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Old 04-19-2013, 11:51 PM   #11
Re: The Low 400  
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Oh, but you have to have more power to weight than a ZR-1 to have fun!
Corvette ZR-1: 3350lbs / 638HP = 5.25HP per pound.
Charger GLHS: ~2400lbs / ~400HP = 6HP per pound.

As you can see, that would just be damn ridiculous in a car not originally designed to go faster than 85mph.
those cars are RWD and have huge amounts of rubber on the ground too... Add 205 width tire and try to drive one lol
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Old 04-19-2013, 11:55 PM   #12
Re: The Low 400  
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those cars are RWD and have huge amounts of rubber on the ground too... Add 205 width tire and try to drive one lol
Thats my point. They have much more traction to get that power down.
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