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Discussion Starter #1
HI Guys,
based on some basic research with unlimited budget to reach 400+ HP with "original" Solstice parts (no replacing engine from another V8 cars and still call it Solstice! phew :)
ok, I have Solstice GXP, 116k miles, no problems what so ever. It already has some quick tuning, but now I wanna get to another level. This is what I wanna do.

Here are the parts I would like to change and install to reach the power:

New engine by DDM - 3995$ (for 400+HP)
http://www.ddmworks.com/Built-Sosltice-Sky-20L-LNF-Engine-by-DDMWorks-_p_681.html

Pontiac Solstice GXP Stage 3 Performance Pack (350whp/380wtq) - 1750$
https://www.rpm-motorsports.com/store/p170/pontiac-solstice-gxp-stage-3-performance.html

Pontiac Solstice GXP Upgraded 3.5" Core Aluminum Intercooler (600whp rated) - 550$
https://www.rpm-motorsports.com/store/p203/pontiac-solstice-gxp-upgraded-intercooler.html

DDMWorks Brace Bundle for Solstice (Backbone and Probeam) - 400$
http://www.ddmworks.com/DDMWorks-Brace-Bundle-for-Solstice-Sky_p_302.html

DDMWorks Front Big Brake Kit for Solstice - 880$
http://www.ddmworks.com/DDMWorks-Front-Big-Brake-Kit-for-Solstice-Sky_p_638.html

BR Series Coilover Pontiac Solstice suspension - 1050$ (I already have it installed, very low)
https://www.bcracing-na.com/products?car=52-1518-2007-0&bFilter=bc-racing-br-series-coilover

Solstice VDI Vertical Door Kit - 1300$ (for the look)
http://www.ddmworks.com/Solstice-VDI-Vertical-Door-Kit_p_142.html

Solstice GXP Mach Shorty Exhaust by Solo Performance - 825$
http://www.ddmworks.com/Solstice-GXP-Mach-Shorty-Exhaust-by-Solo-Performance_p_119.html

MagnaFlow Competition Core Stainless Steel Silver Exhaust Mufflers 2x - 450$ (for the loud sound)
https://www.carid.com/magnaflow/magnaflow-street-mufflers-with-tips-1295166329.html

  • bunch of gauges for over 1200$
  • GT wing spoiler - ??$
  • new edgy looking body kit - ??$
  • 245, 20' wheels (I already have it installed)
Service / Labor not included - ??

What else would you recommend? or what else am I missing? am I on the good path?
In most cases, the packages includes all additional parts, you might not see in the list.
 

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Get Solo's race exhaust if you're using other mufflers... cat delete or hi-flow?
 

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I see no reason to have DDM built engine for the big wheel turbo upgrade - the big wheel will only get you close to 375hp.

Look into PAW's WR-2-EG turbo if you want to touch 400hp.

I love DDM, but I'd defer to PAW for a built engine - thats just my opinion.
 

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Agree - an upgraded K04 won't get you to more than 375 bhp (NOT whp). You need a larger turbo and a willingness to sacrifice some flexibility and endure more lag before you can hit the numbers you are after. And I also agree that a dead stock rebuilt engine (just because yours is high mileage) works just fine with the K04. You only need rods and pistons when you go well above that output level.
 

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Agree - an upgraded K04 won't get you to more than 375 bhp (NOT whp). You need a larger turbo and a willingness to sacrifice some flexibility and endure more lag before you can hit the numbers you are after. And I also agree that a dead stock rebuilt engine (just because yours is high mileage) works just fine with the K04. You only need rods and pistons when you go well above that output level.
Totally agree with this!

Our pistons are Hypereutectic - forged piston and rods is the way to go if your surpassing 400hp. Maybe better springs and retainers also.
 

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ok, i'm seriously jealous.

given that I have decided the solstice is the best car ever made, just a matter of time before i buy a second one and add something like this.
 

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There are several guys on fb who bought the stage 3 package from rpm, when they dyno their car they barely made 290-300 whp. From the list above besides the tune nothing really adds power. Here is a new list:

1) E47 Tune (Best mod)
2) Catless downpipe
3) Intercooler (minimal gains, but you can push the car harder)
4) Lighter wheels
5) EFR turbo (wr-2,3,4)
6) Catback exhaust (minimal gains, but more noise)
7) Zpp closed deck engine

The bw k04 adds 15-20 whp
 

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Discussion Starter #11
I see no reason to have DDM built engine for the big wheel turbo upgrade - the big wheel will only get you close to 375hp.

Look into PAW's WR-2-EG turbo if you want to touch 400hp.

I love DDM, but I'd defer to PAW for a built engine - thats just my opinion.
Thank you, lets put it together, I found those options:

TURBO
http://www.performanceautowerks.com/catalog/index.php/werks-m-3?filter_id=395&sort=3d&osCsid=679aef

ENGINE (5350$ - 9500$ w all options)
http://www.performanceautowerks.com/catalog/product_info.php/werksracing-lnf-long-block-assembly-p-1930

Is that what you mean?
 

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Discussion Starter #12

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Discussion Starter #13

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Discussion Starter #14
There are several guys on fb who bought the stage 3 package from rpm, when they dyno their car they barely made 290-300 whp. From the list above besides the tune nothing really adds power. Here is a new list:

1) E47 Tune (Best mod)
2) Catless downpipe
3) Intercooler (minimal gains, but you can push the car harder)
4) Lighter wheels
5) EFR turbo (wr-2,3,4)
6) Catback exhaust (minimal gains, but more noise)
7) Zpp closed deck engine

The bw k04 adds 15-20 whp
Thanks, that sounds powerful, let see what answers I will get and I will update the post above for better solution.
 

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The key word is RPM, run away. Do WERKS or DDM with a 6758 or 7163 and you will get 400 + BHP.
 

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My suggestion....unless you know about cars and engines, or you have someone that knows about cars and engines....don't do any of this...enjoy your car in it's current state. And definitely don't do an e47 tune...you'll be mixing fuel on your car constantly...it's a pain.
 

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Since money is no object just upgrade the fuel system as well to run straight E85. You can probably get away with just the ZZP upgraded HPFP for 400hp. Check with ZZP for their exact recommendation. In AZ we have E54 out of the pump which I run in both of my cars exclusively. So much better than 91.
 

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Discussion Starter #19 (Edited)
My suggestion....unless you know about cars and engines, or you have someone that knows about cars and engines....don't do any of this...enjoy your car in it's current state. And definitely don't do an e47 tune...you'll be mixing fuel on your car constantly...it's a pain.
Hmm, I wont build it, it will happen in shop and they should know what they are doing. I just wish, we had good performance shops in Georgia for Pontiacs. Its very limited here.
Other option is to take it to Florida, I think there are a good shops for tunes.

https://sandmautomotive.com/services/
https://www.facebook.com/speedlineperformancefl
https://www.facebook.com/Corkys-Muscle-Car-Performance-227958817225931
https://www.brothersperformance.com/
https://www.americanmotorsports.net/
https://www.extremeperformance.biz/
etc.
 
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