Topic: Twincharged Solstice = Turbocharger + Supercharger

[Steelmesh]

On page 6 of this thread I discussed rigging up a 07+ differential to an 06 car   I made the bushing to silly-rig it, not sure if I followed up but I do not recommend it as the bolt there will loosen after multiple 400+ ftlb accelerations.  Torque loss, I didn't go far enough for the bolt to back out but still it's not right.

I was lurking around another place and this was recently posted:


I PM'd the poster to ask about it, then just noticed it says "09 Sol 4 cyl" written on it.  I am curious if this bracket was used on 2009 base model cars, to save money on the torque arm?

[Critterman]

Let us know what you find out

[Dave@DDMworks]

On page 6 of this thread I discussed rigging up a 07+ differential to an 06 car   I made the bushing to silly-rig it, not sure if I followed up but I do not recommend it as the bolt there will loosen after multiple 400+ ftlb accelerations.  Torque loss, I didn't go far enough for the bolt to back out but still it's not right.

I was lurking around another place and this was recently posted:




I PM'd the poster to ask about it, then just noticed it says "09 Sol 4 cyl" written on it.  I am curious if this bracket was used on 2009 base model cars, to save money on the torque arm?

That piece on the front of the differential acting as the front mount is found on all automatic Solstice/Sky's after the torque are is released. Since the differential housing was changed to accept the torque arm, GM made another adapter for the automatic cars that use that mount. If you need one, the part number is GM#15922410, you will also need the bracket GM#25806725, 2 mounting bolts for the bracket to the frame GM#11515776 and the bolt that mounts the differential to the bracket on the car GM#11519079.

Dave

[Steelmesh]

That piece on the front of the differential acting as the front mount is found on all automatic Solstice/Sky's after the torque are is released. Since the differential housing was changed to accept the torque arm, GM made another adapter for the automatic cars that use that mount. If you need one, the part number is GM#15922410, you will also need the bracket GM#25806725, 2 mounting bolts for the bracket to the frame GM#11515776 and the bolt that mounts the differential to the bracket on the car GM#11519079.

Dave

I sure do need this bracket. Googling and ebay aren't finding anything in stock.  I may need to buy a whole used carrier to get the bracket.

Thanks for sharing this insight!!

[Steelmesh]

Polar Vortexes, Chimney repairs, Water heater replacement, Dishwasher replacements, storm damaged huge branch that broke are soaking up my weekends (ehem, those are my excuses).

I a-tacked it this weekend, man it sucks working in a non-insulated garage.

Had to retack this and push the TB lower, the hood clearance was not touching but considering any engine movement it need all I could squeeze.






Intentionally blows right into the SC bypass:

[MattM]

Very nice!  So once you get the bypass tuned correctly you should have a smooth power curve.  A good thread to look at is zzp s thread on cobaltss.net where they twincharged a cobalt.  The bypass was the key to the system working well...

here is a good thread..lot to read through though:

https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/my-zzp-twincharge-build-175481/

Twincharged kit hit's rollers:
https://www.cobaltss.net/forums/forced-induction-50/zzp-twin-charged-kit-hits-rollers-107218/

"When the bypass is open the blower robs about 10 HP. That is easily made up for by the larger more efficient turbo.

Power delivery is smooth and no streetability is lost. With the boost controller all the way down the car peaks at 16psi and makes about 300WHP depending on how high you spin it. you can adjust the blower bypass opening so that it's a slow lazy controlled spool all the way to lightning bolt instant full boost. We have it set in the middle but it's easy to adjust from there. "

https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/i-need-twin-charger-guide-133538/index2.html

[Steelmesh]

Very nice!  So once you get the bypass tuned correctly you should have a smooth power curve.  A good thread to look at is zzp s thread on cobaltss.net where they twincharged a cobalt.  The bypass was the key to the system working well...

here is a good thread..lot to read through though:

https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/my-zzp-twincharge-build-175481/

Twincharged kit hit's rollers:
https://www.cobaltss.net/forums/forced-induction-50/zzp-twin-charged-kit-hits-rollers-107218/

"When the bypass is open the blower robs about 10 HP. That is easily made up for by the larger more efficient turbo.

Power delivery is smooth and no streetability is lost. With the boost controller all the way down the car peaks at 16psi and makes about 300WHP depending on how high you spin it. you can adjust the blower bypass opening so that it's a slow lazy controlled spool all the way to lightning bolt instant full boost. We have it set in the middle but it's easy to adjust from there. "

https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/i-need-twin-charger-guide-133538/index2.html

Thanks for digging this up and sharing.  I should be able to get away with using the factory bypass actuator passively with a boost signal.  If this works out using the Precision 5557, my pathway would be to go with a much bigger turbocharger and add a secondary throttle body to feed directly into the intake manifold, larger volume tract compared to the smaller factory bypass port.  If you look at the LSJ bypass port system, on the intake manifold side (part of the water adapter), it is quite restrictive considering my power level.

[MattM]

What power levels are you trying to get?

[Steelmesh]

What power levels are you trying to get?

About 600 bhp.  This 5557 is rated to 495 and pretty sure I am pushing it off the right side of the compressor map with the current setup.

[MattM]

Wow! That is overkill!!! lol....

Hell 495 with no lag would get you WELL into the low 11s....


What are you trying to get?  10s?

[Steelmesh]

Wow! That is overkill!!! lol....

Hell 495 with no lag would get you WELL into the low 11s....


What are you trying to get?  10s?

About 15 years ago out of school I put together this 91' Firebird, put my off-road trucks mild 383 in it and was playing with tuning a 454 TBI.  I didn't have a lot of money or skills, it's all I had.  On the freeway going home from work (2nd shift), a Mustang heard my hand-built 3.5" single exhaust while we were on the freeway.  We lined up and I smashed the gas pedal making a ton of noise while the Mustang looked like Marty in the Deloreon after reaching 88 mph, he disappeared so quickly, it impacted me significantly.

I want to build a time traveling Solstice to go back in time and annihilate that rustang.   

[MattM]

Haha....So that's like something happening in someone's childhood affecting everything that person does the rest of there life! 

For you it's the mustang!

[Steelmesh]

Haha....So that's like something happening in someone's childhood affecting everything that person does the rest of there life! 

For you it's the mustang!

That's my story and I'm stickin to it!

[Uranium-238]

The real question is, what year Mustang and was it on bowtie power?

[MattM]

I know what you mean though....When I was younger and had the supercharged probe...It was so unique...people loved it.  I would do 30mph pulls with people on the highway and beat sti's, evos, srt4s, turbo civics, and felt awesome, but there were two vehicles that absolutely destroyed me!  They were both "stage 2" (so they said) SRT4s with electric exhaust cutouts, and they beat me by like 20-30 cars from 30mph to 120....It was insane! 

Here is the video:
https://www.youtube.com/watch?v=gB_CMB9GmPE

The first video...The camera is in the SRT4 and I'm in the probe gt...He gave me the hit too...then just destroyed me!  My car was quick too...With a terrible launch I was able to get a 13.8 at 103 mph... Couple of 1/4 miles I managed a 106 and one 108 mph trap speed!  It was a quick car!  I still don't know what those damned SRT4s had done, but it kills me to this day!!!!

[Steelmesh]

Youtube is broken, doesn't like your upload 

[MattM]

It works for me...That's wierd.  I'm using Google Chrome though...

[Steelmesh]

It works for me...That's wierd.  I'm using Google Chrome though...

nvm it works at home 

Wow that must be one of the first 1,000 videos uploaded on Youtube

[Steelmesh]

  It was above freezing today 

Last check before final welds:



We Shirley have clearance Clarence:



Arts and Crafts with Steelmesh:



Pray I didn't warp the case around the rotors, SC welding complete, Eaton made a pretty clean casting not too dirty:







*Will put a facade on that support rod or paint it black at least, function only

[DeepBlueGXP]

Nice tig welding

[Steelmesh]

Nice tig welding

...for my skill level it's okay, thanks for the compliment!  I learned to TIG with aluminum (cause I needed to weld aluminum), my steel tig is worse than this just not enough seat time with those puddles. I started with a hobart spool gun and confirmed that is great for building large aluminum assemblies, spray arc with mig is not ideal for small parts; you got one shot to make a bead and you can't really make adjustments on the fly other than manipulating the torch/nozzle.

[Steelmesh]

I sure do need this bracket. Googling and ebay aren't finding anything in stock.  I may need to buy a whole used carrier to get the bracket.

Thanks for sharing this insight!!

FYI Hoosier had one in stock and got it out to me quick...second purchase from him all is well 

[MattM]

The differential on 07+'s is that much bigger/able to handle more power?

[Steelmesh]

The differential on 07+'s is that much bigger/able to handle more power?

They are all the same as far as strength, but come in 3.73 and 3.91, LSD and no-LSD.  The real strength upgrade is to go with the CTS-V diff from my understanding.

The 07+ manual trans carrier moved to a design that uses a proper torque arm that connects the rear diff to the AR5 output snout.  My challenge was trying to put a 07+ manual carrier on an 06 car that is setup to run the body mounted rear carrier (the single front mount bolts to the body at the carrier). 

I came across the fact that 07+ automatic cars used an adapter to use the torque arm carrier mount (4 bolt locations) as seen in the picture, which allows the carrier to be bolted to the body again.  In my desperation for traction I rigged up an 07+ LSD carrier using the 06 mount, but the 07+ LSD was not machined to take the 06 carrier mount.  I am now going to try to use this 07+ auto transmission mount on the 07+ LSD, and in theory it should work and eliminate the need to upgrade my transmission to use the torque arm.  I have a quafie torsion diff that I have not pulled the trigger on building up, so for now to get the car racing this spring I will run the factory 3.73 LSD with that automatic mount until I get more confident in what gearing I want to run (3.23, 3.42, 3.73).


This is the 07+ automatic trans carrier mount that bolts to the body right there:

[MattM]

Nice!  I see now.