It's a well known fact the direct injected LT1 / LT4 engines have fuel starvation issues at high boost levels - which leads to blown rings and melted pistons.
We are developing a port fuel injection system system (similar to the new ZR1) utilizing the 42 Autosports Port Injection Control Kit and Haltech EMS to supplement the factory fuel system, and eliminate this limitation.
Bulletproofing the LT for Boost The LT series GM engines are incredible powerplants as designed – however unlike their predecessor (LSx) – the LT’s commonly rebel when power adders such as superchargers, turbos, and nitrous are added. unlike the LS – the LT’s commonly rebel when power adde...
SS3 getting it done! Great numbers Ivan and crew at Southwest Speed!!
Southwest Speed Just love having fun with these NA Build! Check out this 2015 1LE, TF225s, GPI S3, GPI Ported Stock Intake, UDP, ARH LTs with HF Cats, NPP Mufflers. 520whp/460tq on a loaded DJ. GET SOME! #swsftw
Ultima Mile Racing coming to Arkansas – Register Here Now!
Exclusive runway event that allows you to run your car flat out for a full mile. Max 50 cars at the event, so you can run as often as you like.
Mile Racing Details -Show what YOU have on a ONE-MILE straight (run wide open on an airport runway in Arkansas – 130mph, 160mph, 190mph & 200+mph) -Set a high-speed record in Arkansas -Get the chance to join the 200+mph club of Arkansas -Test your equipment, prove something to yourself -Heck, just come out for a good time!
Exclusive runway event that allows you to run your car flat out for a full mile. Max 50 cars at the event, so you can run as often as you like. Mile Racing Details Show what YOU have on a ONE-MILE straight (run wide open on an airport runway in Arkansas – 130mph, 160mph, 190mph …
#TeamGPI is proud to welcome our newest sponsor - White Motorsports (@whitemotorsports4878) and the 620hp GPI powered MAX Performance LS3 w/ LS7 Top End. This competition ready Jimmy's 4x4 Bloodline Podium R is freshly tuned, and ready for the 2018 Dirt Riot Series Season which begins March 17th in Laredo, TX.
Looking to upgrade the camshaft in your GM Truck or SUV (4.8L / 5.3L / 6.0L), and want all the essential components to complete the install? GPI is also prepared to add to the savings by offering a 10% Discount on our Cylinder Heads when purchased with this Cam Install Package! GPI Camshaft (Optiona...
In speaking with our customers, and browsing various automotive forums – I have observed a lot of confusion and misinformation concerning hydraulic lifter operation and preload specification. I have concluded it may be helpful to provide some information on this subject. Anatomy of a Hydraulic Lif...
THE ENGINE DYNO RESULTS ARE IN! 150HP MORE THAN STOCK LS3!
Here is our latest testing of the LS3 / L99 MAX Performance Head & Cam Package.
We've taken the goodness of the LS7, and adapted it to the LS3 / L99 platforms, to create a package that is the best of both worlds! The MAX Performance Package is built with an LS7 Cylinder Head, which lets us run a smaller combustion chamber, with additional piston to valve clearance, and still run a lot of camshaft. This seems to be the perfect combination.
Excited to announce we're launching a Gwatney radio program!!!! It's a talk show format hosted by our own Scott Romine. Our first program airs this Saturday on KARN 102.9 fm from noon until 1pm central time. If you are not local you can listen on the station's website or iHeart Radio.
The first show features Jamie Cobb Bradley West Bob Grissom and an interview with Driver of Bumblebee in the Transformers films - Corey Eubanks! Dukes fans should not miss that either!
Tune in this Saturday!!!!
The following show we will be talking about the upcoming Marcus Brooks benefit race! ... See MoreSee Less
Help me make this 14 SS1LE the missle it deserves to be.
The Wife’s 15 SS L99 would be a great candidate. Message me with info. She has been addicted to the track. 1/8 1/4 and road course. And this would keep her out of my ZL1.
I have a 14 camaro ss l99 full bmr rear suspension on 15” wheel currently running tsp cam with stock heads would deff be a tester
Dang, I just bought the vvt3 cam, heads and delete package, lol! Oh well, hope to see ya guys in March to get it tuned.
I’m interested!!! My car is actually needing this done, my valvetrain just took a crap in my 2010 2ss w/L99.
Yes I would be with my L99. I will send back the old Stage 1 GPI VVT cam.
I think I have no chance of being selected, as I'm in Puerto Rico, but will give it a try. I have a 2011 Camaro SS Convertible (L99).
I’d like to enter my 2012 2SS/RS. LTH’s, x-pipe, straight pipes, vararam ‘12model with scoop. Only live a couple hours away also!
hey a big fan of you guys at gpi , had ryan tune my old camaro, i just happened to trade in for a 2012 camaro ss with an l99 back in june, 29000 miles on it right now, victory red black stripes, would love to throw my name in the hat! Looks like a beast of a package.
Would the L99 MAX Performance Package retain the VVT cam? I’m very interested in this.
Interested I have a 2015 Camaro SS L99 with 42000 miles
2012 L99 10k miles Edelbrock E-Force Borla Atak American Racing Headers ZL1 fuel pump CAI Intake.
I have a 15 green flash edition Camaro that is a hell of candidate for this upgrade! I have been in and out of drag racing for the past forty years! I am looking forward to going as fast as I can again.
Also I have twenty years experience as a police officer, Who does not want the streets covered in injuries and dead bodies!!!!
I would be very interested in this Cam package on my LS3 camaro
My car isn’t a L99 but could use something like this. Just have cold air intake installed and kooks headers to be installed soon.
Definitely interested, tsp 1-7/8 to 3” longtubes, d1sc procharger, snow single nozzle meth, stock Cam lifters converter etc. l99 100% stock motor
I am interested in testing this cam package on my 2012 SS/RS L99
I HAVE A 2011 CAMARO SS L99 with headers, exhaust and are intake with a tune
If you want a max effort car I would be interested.
Definitely interested in this!
We have 2014 SS you could use as a test mule.
Holy shit guys those numbers are amazing but I’m scared of my bottom end wanting to let go at those RPMS!
Gwatney Performance Innovation since this accepts a factory LS7 manifold, can further gains be made by going to an LS7 msd atomic airflow manifold?
12 2ss rs.. 70k. Bbk long tubes.. k and n cai, tune. Stright piped into flowmasters super 44s
Want to drop it in a 2013 Sierra L9H? I'll drive my truck out there.