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Turbo and Supporting mods


 
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05MoparSRT4
#NYR #keepcally
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Age: 26
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2005 Dodge SRT-4

Post: #1   PostPosted: Sat Sep 30, 2017 5:59 pm    Post subject: Turbo and Supporting mods Reply with quote

Looking to get a little more "umf" out of my SRT. I autocross and hopefully road racing mine, so not looking to go big turbo. Looking for a nice little rumble and some more pucker factor when going boost.

Any suggestions I was thinking 50 trim but don't know the A/R to get and what would be some supporting mods?


I have the '05 Stage 1 PCM, injen short air, 2.5" exhaust (might be changing that).
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INVUJerry
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2005 Dodge

Post: #2   PostPosted: Wed Oct 04, 2017 1:31 pm    Post subject: Reply with quote

You could get to your goals easily with a big wheel stock turbo.
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BlackRoseRacing
1st ever DD SC 2GN!
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Age: 38
Joined: 25 Dec 2004
Posts: 12733


2002 Dodge Neon R/T

Post: #3   PostPosted: Thu Oct 05, 2017 9:53 pm    Post subject: Reply with quote

Agreed with Jerry,
I'f your looking to do autocross you "DO NOT" want some huge massive turbo because you will be more than likely running you engine in the lower rpm range lets say 1500-4000rpm on average with about maybe 5500rpm peak. For Autocrossing you may want to look into a hybrid turbo that will spool faster in the lower RPM range so when your pulling through corners you have the power band right there so you can pull full power out of a bend.
Your not looking for top end power like 4500-7000rpm.....
Thats one thing that sucks about turbos is the spool time. If you were SuperCharged that thing would be killer in short tracks with no long straights like I would see in videos of the WRC....
I don't know what your class restrictions are so I can't recommend anything farther....
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JeremyJ
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Location: Kent, Washington

2002 Dodge Neon R/T

Post: #4   PostPosted: Fri Oct 06, 2017 10:19 am    Post subject: Reply with quote

Going to a 50 would require a whole lot of changes. Exhaust manifold, fuel system, tune, downpipe, intake...just to name a few. Like Jerry said, a big wheel stock turbo would probably be a decent upgrade, with minimal extras needed.
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jonnymopar
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Location: Southeastern MA

2003 Dodge Neon SXT

Post: #5   PostPosted: Fri Oct 06, 2017 12:17 pm    Post subject: Reply with quote

I know of a few people running the Forward Motion Enforcer 1, me included. Seems to be well-liked. Not a massive upgrade, but it sounds like something you could use.
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05MoparSRT4
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2005 Dodge SRT-4

Post: #6   PostPosted: Mon Oct 09, 2017 5:07 pm    Post subject: Reply with quote

Awesome, I'll look into the BWS. I can still keep the stock internals and head no? I don't really need supporting mods, would a tune assist?
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JeremyJ
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2002 Dodge Neon R/T

Post: #7   PostPosted: Tue Oct 10, 2017 7:40 am    Post subject: Reply with quote

BWS will work fine with stock motor and depending on boost levels, could work without a custom tune.
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occasional demons
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Age: 52
Joined: 03 May 2007
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Location: Ashland, Ohio

2001 Dodge Neon ES

Post: #8   PostPosted: Tue Oct 10, 2017 7:50 am    Post subject: Reply with quote

Adding to Jeremy's post, I would replace the upstream o2 sensor, at minimum, a bit more often than normal to keep it's response as optimum as possible. Anything that has a faster response to getting more air into the engine is going to need to keep the PCM on it's toes.

Not an FI situation, but replacing the 02 sensor on my '01 made a huge gain in throttle response using a 60mm TB. It was far more than the UDP made.

So a tired o2 might be the difference between a good A/F mixture, and a brief lean one.
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jonnymopar
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2003 Dodge Neon SXT

Post: #9   PostPosted: Tue Oct 10, 2017 8:04 am    Post subject: Reply with quote

occasional demons wrote:
Not an FI situation, but replacing the 02 sensor on my '01 made a huge gain in throttle response using a 60mm TB. It was far more than the UDP made.


This completely took me by surprise and it's absolutely true. The heater died in my downstream sensor around 190k miles, so I decided to replace both. The car truly ran like new again. Best $100 I've spent on it so far.
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