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View Full Version : I took my SRT-4 to the dyno!



mpboost
03-18-2008, 03:24 PM
So after putting 54k miles on it and having it nearly 3 years I finally put it on the dyno:
http://www.barrettmotorsport.com/images/SRT%20Dynosheet1.jpg

http://www.youtube.com/watch?v=f5RsY6Z8qtc"]http://www.youtube.com/watch?v=f5RsY6Z8qtc

The car is equipped with Mopar Stage 3 with the Turbo Toys option. I was running it in High Octane Mode on Sunoco 116 (I can also run 110 octane and hold HOM though).

I have a good number of mods to the car, but engine wise it just has the basics:
-MPx Intercooler
-Maxxfab Dual Exit Mufflered Exhaust (Turbo back)
-Maxxfab Stage 3 O2 housing
-Injen Short Ram Intake
-DCR Oil Modifier
-AGP Stage 3 Wastegate Actuator
-JMB Powdercoated charge pipes w/HKS blowoff valve

Just thought I'd share.

bill2
03-18-2008, 04:18 PM
Very nice! The agp wastegate is a must for s3.

2.216VTurbo
03-18-2008, 05:22 PM
Very strong, nice:clap:

turbovanman²
03-18-2008, 05:34 PM
Very nice power, :nod:

glhs727
03-18-2008, 05:44 PM
nice numbers for a s3 car.

badandy
03-18-2008, 06:19 PM
:wow1: Close to 375 horse and 400 ft lbs! :faint:

neoned
03-18-2008, 06:19 PM
Is that the big or small i/c setup?

With the dcr port job on the comp and ported intake I made -10hp and -10tq on pump. But I was boosting 27psi at the time. Does it feel like your running out of huff up top. Other than that I'm very similar to your setup. I even have the mopar 2.5 inch though.

Good #'s though. I know how it feels to have hard work pay off.

t3rse
03-18-2008, 06:51 PM
neoned: if you didn't dyno back to back, 10 hp is within acceptable error so there is no guarantee those mods did anything.

mpboost
03-18-2008, 07:34 PM
Is that the big or small i/c setup?

With the dcr port job on the comp and ported intake I made -10hp and -10tq on pump. But I was boosting 27psi at the time. Does it feel like your running out of huff up top. Other than that I'm very similar to your setup. I even have the mopar 2.5 inch though.

Good #'s though. I know how it feels to have hard work pay off.
It's a large IC.

I actually just bought another brand new Stage 3 turbo and it just got here today. I am going to break it down and ship the parts off to a couple vendors. I am planning to have the turbo upgraded to an FM Enforcer 3, and then it is going to Darrell Cox Racing to have a 3" bellmouth w/antisurge ports added to it. I am still debating what I will do with the manifold. Right now I am either going to send it to Darrell Cox or Realtune to have an external wastegate added.

My new goal is to make 370-375hp on pump gas and 420-425hp on HOM.

cordes
03-18-2008, 07:39 PM
That is a pretty nice graph, and a very nice powerband too. I bet that is a lot of fun on the street.

stage3
03-18-2008, 11:22 PM
It's a large IC.

I actually just bought another brand new Stage 3 turbo and it just got here today. I am going to break it down and ship the parts off to a couple vendors. I am planning to have the turbo upgraded to an FM Enforcer 3, and then it is going to Darrell Cox Racing to have a 3" bellmouth w/antisurge ports added to it. I am still debating what I will do with the manifold. Right now I am either going to send it to Darrell Cox or Realtune to have an external wastegate added.

My new goal is to make 370-375hp on pump gas and 420-425hp on HOM.

Hope you plan on a ported head or upgraded turbo.

mpboost
03-18-2008, 11:28 PM
Hope you plan on a ported head or upgraded turbo.
:lol: don't take this the wrong way but you might want to consider re-reading the post


I actually just bought another brand new Stage 3 turbo and it just got here today. I am going to break it down and ship the parts off to a couple vendors. I am planning to have the turbo upgraded to an FM Enforcer 3, and then it is going to Darrell Cox Racing to have a 3" bellmouth w/antisurge ports added to it. I am still debating what I will do with the manifold. Right now I am either going to send it to Darrell Cox or Realtune to have an external wastegate added.

stage3
03-18-2008, 11:30 PM
:lol: don't take this the wrong way but you might want to consider re-reading the post

Reading owns me :banghead:. But I was right :bump2:.

stage3
03-18-2008, 11:34 PM
I have the E3 turbo, installed it last year. Finally got a ported exhaust manifold for it. Realtunes manifold but still with internal wg.

Clay
03-18-2008, 11:38 PM
just cause Im curious, but why would you put a modded stage III turbo on, instead of a 50 trim?

stage3
03-18-2008, 11:45 PM
Less lag and broader powerband.

10G OMNI
03-19-2008, 12:09 AM
What PSI? great if your boosting 16 not so great 28 and up

t3rse
03-19-2008, 12:47 AM
the chart says 23-24....

I feel sorry for these SRT folk who think they need ported heads to make 500 hp....

mpboost
03-19-2008, 06:30 AM
just cause Im curious, but why would you put a modded stage III turbo on, instead of a 50 trim?
Just like stage3 pointed out, it's all about powerband.

50 trim turbos tend to make better peak numbers, but the Stage 3 turbo makes a lot of power underneath the whole curve. At the track my 366hp Stage 3 performs more like a 390hp 50 trim would.

mpboost
03-19-2008, 06:33 AM
the chart says 23-24....

I feel sorry for these SRT folk who think they need ported heads to make 500 hp....
Yup, 23-24psi spike but the PCM pulls it back to 21psi real quick, and then it tapers down to 19-20psi near redline when the backpressure starts to overpower the wastegate.

contraption22
03-19-2008, 06:40 AM
Very nice man. Very nice!

omni_840
03-19-2008, 08:05 AM
Nice numbers:thumb:

Clay
03-19-2008, 08:06 AM
Less lag and broader powerband.

ahhhh ok, makes sence then. That stage 3 does seem to have a LOT of area under the curve. The 50 would probably be pretty peaky.

so what is the cutoff point where the stage 3 runs out of gas and you have to move to a 50 trim or better for more power?

stage3
03-19-2008, 09:52 AM
Now that I am awake and can comprehend what I am reading you should be able to hit your numbers. I put down 410 with the FM 44# wheel with an unported exhaust manifold and 2 ½” exhaust. That pretty much maxed out the injectors. I upgraded to the 625cc’s and also got the manifold ported and added 3” O2 housing this winter. Just waiting on the weather to break so Aaron can tune it.
Might be a good idea for you to remove the balance shafts and get the DCR windage tray kit and better oil pump gears.
I can post my dyno graph if you want to see it.

mario03SRT
03-19-2008, 09:54 AM
All,

Just to add to the discussion and shown another Stg 3 dyno here is mine from about a year ago. Stage 3 turbo w/ Stg1 electronics, pump gas, Alky Inj, 3" ex, 52mm TB, 3" CAI. Stock head, no work done to the turbo. DTEC fuel piggyback, manual boost controller. 27 psi holding 21 @ redline. 11.70 car @ 118/119 or so mph.

http://i122.photobucket.com/albums/o270/mario03srt/mariondyno.jpg

mario03SRT
03-19-2008, 10:17 AM
Here is a DBB 50 trim that I tuned recently with ported head , 52 mm TB and alky, 3" ex, SAFCII piggyback, 25 psi. This has a very nice spool up:nod: and lotza power under the curve.

http://www.srtforums.com/forums/f31/my-50-trim-dyno-425442/

WLKivett
03-19-2008, 10:43 AM
that 50 trim made 400 # ft from 3500 to 5750 RPM - nice.

Best Regards,
Landon

t3rse
03-19-2008, 12:43 PM
The 50 trim will do everything the s3 will and more with a standalone, and thus the ability to tune for it.

And PLEASE don't buy the DCR sorry attempt at a windage screen and crank scraper. here's what a real one looks like, and cheaper to boot:
http://www.crank-scrapers.com/updateSRT4_c.jpg

http://www.crank-scrapers.com/Chrysler.html

mpboost
03-19-2008, 01:12 PM
All,

Just to add to the discussion and shown another Stg 3 dyno here is mine from about a year ago. Stage 3 turbo w/ Stg1 electronics, pump gas, Alky Inj, 3" ex, 52mm TB, 3" CAI. Stock head, no work done to the turbo. DTEC fuel piggyback, manual boost controller. 27 psi holding 21 @ redline. 11.70 car @ 118/119 or so mph.

http://i122.photobucket.com/albums/o270/mario03srt/mariondyno.jpg
I remember when Forced Performance got their hands on some Stage 3 turbos several months ago now. Everyone was buying them left and right, many of them inspired by your dyno numbers with the Stage 3/Stage 1 hybrid. Props to you for doing it your own way :thumb:

mario03SRT
03-19-2008, 01:40 PM
I remember when Forced Performance got their hands on some Stage 3 turbos several months ago now. Everyone was buying them left and right, many of them inspired by your dyno numbers with the Stage 3/Stage 1 hybrid. Props to you for doing it your own way :thumb:

I ran into a guy at the Mopar Nats with a clandestine hookup on the Stg3 turbofolds in the summer of 06. I finally got around to putting it on during XMas. The Stage 3 pulls insanely hard. A good buddy has one with a 44lb wheel and ported head, cams and alky. Soon to be tuned. Outta make 425/450 or so:hail:

Marion

mpboost
03-19-2008, 01:46 PM
The 50 trim will do everything the s3 will and more with a standalone, and thus the ability to tune for it.
True, but not everyone wants (or should even try) to tune a setup. Some people are just not capable of properly building and tuning a good 50 trim setup.

stage3
03-19-2008, 01:47 PM
The 50 trim will do everything the s3 will and more with a standalone, and thus the ability to tune for it.

And PLEASE don't buy the DCR sorry attempt at a windage screen and crank scraper. here's what a real one looks like, and cheaper to boot:
http://www.crank-scrapers.com/updateSRT4_c.jpg

http://www.crank-scrapers.com/Chrysler.html

There you go. You need to spend an additional 2000.00 for a standalone on top of the 50 trim kit to out do a Stage 3 :thumb:.

Clay
03-19-2008, 01:53 PM
There you go. You need to spend an additional 2000.00 for a standalone on top of the 50 trim kit to out do a Stage 3 :thumb:.


Here is a DBB 50 trim that I tuned recently with ported head , 52 mm TB and alky, 3" ex, SAFCII piggyback, 25 psi. This has a very nice spool up:nod: and lotza power under the curve.

I know its not a stand alone, but an SAFCII is far from 2000.00. Way far away.

mpboost
03-19-2008, 01:57 PM
I ran into a guy at the Mopar Nats with a clandestine hookup on the Stg3 turbofolds in the summer of 06. I finally got around to putting it on during XMas. The Stage 3 pulls insanely hard. A good buddy has one with a 44lb wheel and ported head, cams and alky. Soon to be tuned. Outta make 425/450 or so:hail:

Marion
Nice! :nod:

Since I originally bought the Stage 3 kit I have been toying with the idea of going to the 44lb wheel. At first I was going to do it before I put the turbo on the car, but I was too impatient, installed the Stage 3 kit when it arrived and sold my Enforcer 1 turbo soon after (that was almost a year ago now). Since then I have been looking to buy another Stage 3 turbo to modify (because I daily drive this car). I didn't realize they would be so hard to find, so I missed out on a couple deals. I finally found a new one for a decent price a couple weeks ago and bought it.

Apparently the company I bought it from managed to get about 5 of them directly from Mitsubishi, although I don't know how.

I am definitely looking forward to the E3 upgrade :D

stage3
03-19-2008, 02:08 PM
I know its not a stand alone, but an SAFCII is far from 2000.00. Way far away.

I was just messing around. I use a DTECFCBC.

Here is what I put down last year. Hope its a little higher with the new parts.
http://members.cox.net/90vnt/SRT-4/07%20DYNO/carlisle.jpg

mario03SRT
03-19-2008, 02:34 PM
One more for giggles.............here is my stock turbo dyno.. 302/375 summer of 06. It went 12.2 @112mph

http://i122.photobucket.com/albums/o270/mario03srt/StockTurboDynoChart11.jpg

t3rse
03-19-2008, 07:16 PM
There you go. You need to spend an additional 2000.00 for a standalone on top of the 50 trim kit to out do a Stage 3 :thumb:.

last I looked you could get megasquirt for 150$....

turbovanman²
03-19-2008, 07:19 PM
Wow, your giving me some good numbers to shoot for, ;)

neoned
03-20-2008, 01:51 PM
Hope you plan on a ported head or upgraded turbo.

He won't need it. I'm only a few off those #'s

Why not get the DCR 49lb wheel while your at it. By the time your done shipping it around it'll work out the same.

And it is pointless to go to a 50 trim. The Borg warner 256 is a faster spooling and flows 4lbs a min more.

risen
03-20-2008, 03:00 PM
Just curious, any of you SRT guys ever run a Holset with a bullseye housing on it? And if anyone has, I was curious to find out how close it was to bolt on (SRT's do use the mitsu style turbine inlet, right?)?

Nice numbers by the way, must be a handful to launch.

mpboost
03-20-2008, 03:56 PM
Just curious, any of you SRT guys ever run a Holset with a bullseye housing on it? And if anyone has, I was curious to find out how close it was to bolt on (SRT's do use the mitsu style turbine inlet, right?)?

Nice numbers by the way, must be a handful to launch.
There are no direct "bolt-on" turbos for the Neon SRT-4 because there is no turbo mounting flange on the exhaust manifold. The stock turbine housing is integrated to the exhaust manifold so you have to run an aftermarket cast or tubular manifold for any other turbo besides the stock turbo (or a stock derivative).

Check out this Mopar Stage 3 turbo for further clarification:
http://www.modernperformance.com/dcx/mopar_stage3_notoys.jpg

risen
03-20-2008, 04:02 PM
There are no direct "bolt-on" turbos for the Neon SRT-4 because there is no turbo mounting flange on the exhaust manifold. The stock turbine housing is integrated to the exhaust manifold so you have to run an aftermarket cast or tubular manifold for any other turbo besides the stock turbo (or a stock derivative).

Check out this Mopar Stage 3 turbo for further clarification:


Ahh, thanks for denoobifying me there. Dunno why I thought they used mitsu inlets, perhaps all the mitsu turbos that get used.

Aries_Turbo
03-20-2008, 04:41 PM
nice job maurice. :) now get to work on that aries! ;) hehehe

Brian

mpboost
03-20-2008, 04:45 PM
Ahh, thanks for denoobifying me there. Dunno why I thought they used mitsu inlets, perhaps all the mitsu turbos that get used.
Well I should have mentioned you are partially correct, they do use Mitsu turbos. It's just the whole turbocharger unit is very odd and application specific. I believe there is only a small handful of Mitsu center sections out there that will even bolt into the SRT-4 "turbofold".

mpboost
03-20-2008, 04:47 PM
nice job maurice. :) now get to work on that aries! ;) hehehe

Brian
Anybody want to buy a Grassroots Motorsports challenge car? I am selling one for cheap......1988 Dodge Aries w/2.2L Turbo......only $2008 :lol:

Seriously though, you are right, I need to work on the Aries :nod:

neoned
03-20-2008, 05:40 PM
I can launch decent on dr's. I need slicks though.

There is guys that have the holset with the bullseye housing. Goes like hell

Aries_Turbo
03-20-2008, 06:35 PM
i dont like those .50 ar bullseye housings. i dont know if there are larger ones but i think the .5 is too small.

Brian

risen
03-20-2008, 08:33 PM
i dont like those .50 ar bullseye housings. i dont know if there are larger ones but i think the .5 is too small.

Brian

I read over on dsmtuners that BEP had made a .70 AR for the HX-40, but I don't know if they're still available (TheTurboTrader had some). I'm in the process of going to a HX-35/.50 ar BEP/38mm Tial setup. I'm hoping the gate will let things flow ok up top and spool hard. There's plenty of DSM guys who have put down 400+ on the .50 housings, so it should be plenty for me.

I was just curious if anyone had tried one on a SRT, as it's my understanding the compressor wheels on a HX-35 are good to around 50#/min, and you can get a hx-40 that's good for 75#/min.

WickedShelby88
03-21-2008, 03:59 AM
From what I can tell the stage 3 kit isn't exactly cheap in itself, but as prices keep falling for SRT4's
it seems like a bargain to make the numbers not to mention the driveability. Ma mopar came a long way after the super 60 setup.

neoned
03-22-2008, 01:37 AM
From what I can tell the stage 3 kit isn't exactly cheap in itself, but as prices keep falling for SRT4's
it seems like a bargain to make the numbers not to mention the driveability. Ma mopar came a long way after the super 60 setup.

I'm selling my s3 for a reasonable price if anybody is interested. I didn't think there would be much interest so I didn't make up a ad for here.