LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Turbo Uprising

Thread Tools
 
Search this Thread
 
Old Mar 11, 2011 | 09:46 AM
  #21  
07MCSS's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Mar 2007
Posts: 187
Likes: 0
From: Little Rock, AR
Default

Originally Posted by f3racer
just a question. why not go with the cartuning kit? i know its 1500 more but wouldnt it have been worth it for less hassle? or was it a point to make your own kit? ive made alot of crap on my own in order to save bank so i understand.
I didn't have $5500 when I started this project. I also didn't have the patience to save it up. I had talked to Kevin about a tuner kit in 2009. He was very helpful but what he hadn't developed one yet so I took the bull by the horns. It took several months of buying things in stages and doing some of the installation myself. I liked the fact that I got to choose all of the components myself. I had the shop fab the hot/cold side, mount the turbo and another shop do the tuning. There were lots of times I was frustrated but I'm happy now.
Reply
Old Mar 11, 2011 | 09:50 AM
  #22  
f3racer's Avatar
Banned
 
Joined: Feb 2011
Posts: 122
Likes: 0
From: lebanon, mo
Default

sounds good to me.
Reply
Old Mar 11, 2011 | 10:13 AM
  #23  
07MCSS's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Mar 2007
Posts: 187
Likes: 0
From: Little Rock, AR
Default

Originally Posted by TiredGXP
Wow, lost track of this thread.

What are you using for boost control, the WG spring and manifold pressure, or is there a MBC installed? If boost coming on too early is causing driveability problems, you might consider adding an EBCS system so you can adjust the WGDC to moderate spool up. Some aftermarket units allow you to load several maps depending on driving conditions.

I'm using a WG spring manifold pressure for now. It would be nice to upgrade to some electronics to help with launching.
Reply
Old Feb 25, 2012 | 11:58 AM
  #24  
07MCSS's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Mar 2007
Posts: 187
Likes: 0
From: Little Rock, AR
Default

Hey guys it's been awhile since I gave a progress report. I got my car back from PATC yesterday. They did a proper rebuild of my transmission and installed a Precision Billet converter. I went with a 2800 stall speed. It feels really good down low. Of course 1st gear is even more useless! I can't wait to get a good set of drag radials and head to the track. That dealership band-aid that I got in October was a complete waste of time and money. It shifted horribly driving it off the lot.

At PATC they were very knowledgeable about our transmissions and offer excellent customer support. They had no issues with removing and reinstalling the turbo either. Nathan went on the road with me for about 30 minutes to get my driving impressions of the car under all types of conditions. We went from normal driving to the street race roll and then from a a dig. It is performing flawlessly. On the three hour drive home with about 6 or 7 wot bursts it still averaged 24.2 mpg.

More updates coming!
Reply
Old Feb 25, 2012 | 12:03 PM
  #25  
supercatxr7's Avatar
TECH Enthusiast
iTrader: (5)
 
Joined: Aug 2007
Posts: 628
Likes: 2
Default

Good to hear, enjoy it! Quick question on the PI billet converter install. Did they have any issue with the bolt holes in the converter not being deep enough and having to use washers for spacing to make it draw up flat to the flywheel?
Reply
Old Feb 25, 2012 | 01:36 PM
  #26  
07MCSS's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Mar 2007
Posts: 187
Likes: 0
From: Little Rock, AR
Default

Originally Posted by supercatxr7
Good to hear, enjoy it! Quick question on the PI billet converter install. Did they have any issue with the bolt holes in the converter not being deep enough and having to use washers for spacing to make it draw up flat to the flywheel?
No one mentioned it to me. They want me to follow up in a few days to see how everything's going. I'll ask then. Is that an issue with these converters on our cars?
Reply
Old Feb 25, 2012 | 01:41 PM
  #27  
straitchev's Avatar
Staging Lane
 
Joined: Aug 2011
Posts: 62
Likes: 0
Default

Great write up. How has the transmission held up?
Reply
Old Feb 25, 2012 | 01:52 PM
  #28  
07MCSS's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Mar 2007
Posts: 187
Likes: 0
From: Little Rock, AR
Default

Originally Posted by straitchev
Great write up. How has the transmission held up?
It's only been a day but so far, great! There were some precautions that they advised me of to make it last longer. No wot in 4th gear, ever! They also said to manually select the gear that I want when punching it from a roll. Gassing it to pass or speed up is ok. But like racing from a roll and letting the car downshift on its own at wot will shorten its life. Other than my tuner, no one has ever fixed something on any of my cars and voluntarily went for a ride with me to make sure that I was satisfied with the work. Those PATC guys are pretty cool.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Mar 2, 2012 | 05:25 PM
  #29  
07MCSS's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Mar 2007
Posts: 187
Likes: 0
From: Little Rock, AR
Default

Originally Posted by supercatxr7
Good to hear, enjoy it! Quick question on the PI billet converter install. Did they have any issue with the bolt holes in the converter not being deep enough and having to use washers for spacing to make it draw up flat to the flywheel?
They did used grade 8 washers on the converter to make sure it was seated properly into the pump. He assured me that it was an industry practice and wouldn't harm anything. I don't have a problem with it. Yesterday I stalled it against the brakes for the first time. It held up to about 2900 rpm.
Reply
Old May 26, 2012 | 08:34 PM
  #30  
07MCSS's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Mar 2007
Posts: 187
Likes: 0
From: Little Rock, AR
Default

My transmission bit the dust today. It was really weird. I was just driving normally out of the parking lot at my job. I heard a faint snap and it quit pulling. I have to think long and hard about getting on the demod list or just take like a man and rebuild it. If it is a hard part, I don't even know if my warranty will cover it. I guess I'll find out Tuesday.
Reply
Old May 26, 2012 | 08:41 PM
  #31  
Andrew91PGT's Avatar
On The Tree
 
Joined: Dec 2010
Posts: 109
Likes: 1
Default

Broke your input shaft....get the one from Dave at TEP....
Reply
Old May 26, 2012 | 08:49 PM
  #32  
99slpws6's Avatar
On The Tree
 
Joined: Jan 2010
Posts: 141
Likes: 3
Default

Originally Posted by Andrew91PGT
Broke your input shaft....get the one from Dave at TEP....
X2 I think supercatxr7 broke his 300mm input shaft as well. I think intense is the only company to get one from, unless you luck out and somehow find a gmpp one lol.
Reply
Old May 26, 2012 | 08:59 PM
  #33  
07MCSS's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Mar 2007
Posts: 187
Likes: 0
From: Little Rock, AR
Default

I have the input shaft from TEP. I would rather it be the chain than the input shaft. If the input shaft broke, won't there be pieces of metal floating around in the trans? I know I just spent 4 grand for trans, converter and the installation. It may have to sit for awhile until I get my wits about me. I would HATE to tell my wife that I may have to have the whole thing gone through again.
Reply
Old May 26, 2012 | 09:09 PM
  #34  
Andrew91PGT's Avatar
On The Tree
 
Joined: Dec 2010
Posts: 109
Likes: 1
Default

Originally Posted by 07MCSS
I have the input shaft from TEP. I would rather it be the chain than the input shaft. If the input shaft broke, won't there be pieces of metal floating around in the trans? I know I just spent 4 grand for trans, converter and the installation. It may have to sit for awhile until I get my wits about me. I would HATE to tell my wife that I may have to have the whole thing gone through again.

Looks like your not the only one....

https://ls1tech.com/forums/ls4-perfo...put-shaft.html
Reply
Old May 26, 2012 | 09:34 PM
  #35  
99slpws6's Avatar
On The Tree
 
Joined: Jan 2010
Posts: 141
Likes: 3
Default

Originally Posted by 07MCSS
I have the input shaft from TEP. I would rather it be the chain than the input shaft. If the input shaft broke, won't there be pieces of metal floating around in the trans? I know I just spent 4 grand for trans, converter and the installation. It may have to sit for awhile until I get my wits about me. I would HATE to tell my wife that I may have to have the whole thing gone through again.
actually the other way around if the chain broke it would cause more damage i.e to the tranny case. If the input shaft just broke normally they just twist and break into two pieces.
Reply
Old May 26, 2012 | 09:41 PM
  #36  
07MCSS's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Mar 2007
Posts: 187
Likes: 0
From: Little Rock, AR
Default

Originally Posted by 99slpws6
actually the other way around if the chain broke it would cause more damage i.e to the tranny case. If the input shaft just broke normally they just twist and break into two pieces.
That's good to know. I bought mine from TEP. I hope that if it is the problem that Dave's as generous as the Intense guys were with Supercatxr7! I need a break (no pun intended).
Reply
Old May 28, 2012 | 12:05 AM
  #37  
supercatxr7's Avatar
TECH Enthusiast
iTrader: (5)
 
Joined: Aug 2007
Posts: 628
Likes: 2
Default

Mine was a clean break, no metal shavings. Pulled out the broken shaft and popped in a new one.
Reply
Old Jun 12, 2012 | 12:27 PM
  #38  
DavidGXP's Avatar
12 Second Club
iTrader: (14)
 
Joined: Jun 2007
Posts: 2,563
Likes: 0
From: Renton, WA
Default

Nice build man.. I'm looking to add a turbo too.
If you ever do a DE-MOD sell send me a PM!
Reply
Old Jun 12, 2012 | 03:41 PM
  #39  
07MCSS's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Mar 2007
Posts: 187
Likes: 0
From: Little Rock, AR
Default

Originally Posted by DavidGXP
Nice build man.. I'm looking to add a turbo too.
If you ever do a DE-MOD sell send me a PM!
I'll keep you in mind. De-modding always sounds like a good idea when it's not running. I'm eventually going to take the transmission out to get it fixed. It is showing input speed on my Aeroforce gauge. According to Dave it may be a broken chain. If it is, I hope it didn't damage anything inside the case.
Reply
Old Jun 13, 2012 | 08:16 AM
  #40  
DavidGXP's Avatar
12 Second Club
iTrader: (14)
 
Joined: Jun 2007
Posts: 2,563
Likes: 0
From: Renton, WA
Default

Were you using the 7/8 chain?
Reply



All times are GMT -5. The time now is 01:15 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE