Big Turbo Upgrade (Guidance)

[n_charpy89]

Hey guys, I've have been off the Forum for quite a while, focusing on work and stuff, and havent had time to work on my car, but now it's time to get back into it. I have read through a lot of the forum and the upgrade paths, and just looking for guidance / suggestions on what I should do to complete my project. I want to go with a new turbo, something that will be reliable and offer good power and driveability (only going to drive on weekends). I would really like to limit my total expense to no more than $3000 but would be more comfortable in the 2K range.

2005 ACR w/ under 60,000 mi.
Here is my list of mods, not all installed obvoiusly, car is still on stock tune:

MPx 3" turboback exhaust w/ cat and resonator
AEM UEGO Wideband
Walbro 255
AEM 3" SR Intake
MPx Oil Catch Can
DiabloSport Trinity
AGP Solid Motor Mounts
Mopar Blue Blow Off Plate
BC Coilovers
AGP Fuel Return Kit (not installed)
MPx Big Front Mount Intercooler (not installed)
DeatschWorks 1000cc Injectors (not installed)
3 bar map / tip sensors (not installed)
TurboXS Manual boost controller (not installed)

Things that I still plan on doing are adding a check valve and fuel pump rewire.

I know I will also need an external BOV when I go big turbo.

Basically I am looking for some suggestions and guidance, and if I have missed anything.... I am not real comfortable with tuning stuff myself, I just don't have any experience with it, kind of just want to install everything and get it dyno tuned (kind of a waste of the DST, I know). Close to 400hp would be awesome, but I would like to see at least 350.

Let me know what you think, Thanks!

[Srt-4 Lover Tim]

I believe you also need a clutch when going big turbo. Which turbo are going to be getting man?

[Ridin59vette]

Your going to need a Clutch too. Get a PTE 5431 Kit From AGP and a 6 Puck from ACT. Should get you where you want to be reliably.

[ggferris]

Return line and bnf if you wanna make power


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[Ridin59vette]

Quote: Originally Posted by ggferris

Return line and bnf if you wanna make power


Sent from

He's got the return line already and for his 350-400Hp Goal there's no point in doing a BNF

[n_charpy89]

Sorry guys, really new to different types of turbos and this is the part that I am most stumped on..... No idea what turbo I want, and what is a bnf (sorry if its a stupid question)?

@ Ridin59vette: is this the turbo you are referring to?

Precision 5431 MFS - AGP Turbochargers, Inc. Store

And would I want the .48 or the .63?
Does this bolt up to the stock manifold?

I figured I needed a clutch too, just wasn't positive if I need it right away, I've read a lot of people stick with the stock one up to like 350, but if I go 400 I know it won't handle it well.

[zman17]

.48 will spool a bit faster but .63 if u wan a bit more power. I'd honestly not use the .48 ar housing. To small, but it all depends on your personal goals.


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[n_charpy89]

Quote: Originally Posted by zman17

.48 will spool a bit faster but .63 if u wan a bit more power. I'd honestly not use the .48 ar housing. To small, but it all depends on your personal goals.


Sent from

That makes sense, and assuming you drive nicely you should get better fuel economy when out of boost. I think thats the route I would go, just don't want a lot of turbo lag.

Does that turbo bolt right up? And would I need a new Wastegate and BOV?

Again sorry for the dumb questions, this is the first turbo car I've owned, trying to do it right without blowing something up!

[Ridin59vette]

Quote: Originally Posted by n_charpy89

Sorry guys, really new to different types of turbos and this is the part that I am most stumped on..... No idea what turbo I want, and what is a bnf (sorry if its a stupid question)?

@ Ridin59vette: is this the turbo you are referring to?

Precision 5431 MFS - AGP Turbochargers, Inc. Store

And would I want the .48 or the .63?
Does this bolt up to the stock manifold?

I figured I needed a clutch too, just wasn't positive if I need it right away, I've read a lot of people stick with the stock one up to like 350, but if I go 400 I know it won't handle it well.

You will also Need a New BOV And Uppipe to mount it on. Other then that you should be good. It looks like you've got all the other support mods

Yes, that is the turbo, I would Def Go with a .63 That way when you get tired of the lower HP you still have some room on the turbo. With a .48 You will more then likely get a good amout of surge, also you would need a full kit. Like this SRT-4 Turbocharger Upgrade Kit - AGP Turbochargers, Inc. Store Then a quality Clutch. A bnf Is a Bottle neck fix. The stock fuel feed is very small so when you get to the higher HP Numbers it will hinder performance significantly.

[zman17]

Quote: Originally Posted by n_charpy89

That makes sense, and assuming you drive nicely you should get better fuel economy when out of boost. I think thats the route I would go, just don't want a lot of turbo lag.

Does that turbo bolt right up? And would I need a new Wastegate and BOV?

Again sorry for the dumb questions, this is the first turbo car I've owned, trying to do it right without blowing something up!

The 5431 kit from agp comes with everything you will need. Manifold o2 housing. Wastegate and the oil lines and coolant plugs. All the goodies. You will need an external bov and a boost controller. Like the boost box. Hands down best boost controller. Do you have a diablo product? My turbo is .63 ar housing. Mines a bit bigger than the 5431 so I have some lag down low but up top it pulls like a freight train. My car has way more street manners now. Seems to me the drive ability is a lot better. Mileage on a big turbo sucks if you don't stay out if boost. I get like 165-180 miles depending if I boost a lot or not. You will also need a tune. From duster360 or turbo666 mindmelt or link low. Who ever you choose. I personally use duster and he knows his stuff.


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[enginjoe]

He can control boost with stock solenoids and a tune I believe, so a boost controller is not needed. He has a trinity, so the tune is just an email away.

[Ridin59vette]

Quote: Originally Posted by enginjoe

He can control boost with stock solenoids and a tune I believe, so a boost controller is not needed. He has a trinity, so the tune is just an email away.

Or just run it on Spring pressure

[zman17]

Quote: Originally Posted by enginjoe

He can control boost with stock solenoids and a tune I believe, so a boost controller is not needed. He has a trinity, so the tune is just an email away.

Right. I was just saying that its something to look into for him.


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[n_charpy89]

So I would be looking at this kit:

SRT-4 Turbocharger Upgrade Kit - AGP Turbochargers, Inc. Store

With the Precision 5431 .63 selection, and that would bring the total to $1775

Then a few hundered for the BOV setup, and an email tune, and I would be all done for less than $2500 or so?

That sounds like a pretty good option to me. I was just planning on doing the dyno tune because I am not real confident in my tuning skills, lol.

[Ridin59vette]

Quote: Originally Posted by n_charpy89

So I would be looking at this kit:

SRT-4 Turbocharger Upgrade Kit - AGP Turbochargers, Inc. Store

With the Precision 5431 .63 selection, and that would bring the total to $1775

Then a few hundered for the BOV setup, and an email tune, and I would be all done for less than $2500 or so?

That sounds like a pretty good option to me. I was just planning on doing the dyno tune because I am not real confident in my tuning skills, lol.

Pretty much man. Your going to want to look into a clutch aswell though. More then likely the stocker wont hold with the power that turbo will make