First look....new LSX lifters
Sorry for the lack of updates....been REALLY busy.
So....all is good now!!! Valvetrain is as quiet as can be expected, considering that the Fast102 transmits a bit more noise than the old ls6 intake. I'm a happy camper....finally!! This last weekend, the car went to the dyno and performed very nicely...even with the stock rockers (w/trunion upgrade) the valves were quiet. It was kind of a last-minute rush to get the car to the dyno, and as such I did not have time to swap the rockers out for aftermarket ones. I now am waiting for a set of Yella Terras to get here, so the car is parked until next week (when I have time to put them on). I just did not care for the swipe pattern, so I'm changing them out. Roller tips will be a nice upgrade as well.
I'll make sure to post a video of the car in the next week or so....it's 1000% better than it was before. I'm VERY happy with it.
I've spoken with the lifter manufacturer recently, and they are still preferring that I not mention them by name. They said that they are currently building up inventories of this lifter, and should be ready for me to reveal who they are in the next 3 weeks or so. This is not their only product line, and as such, it takes a while. They stressed that they just did not want to put any new customers in the position of having to wait 3-5 weeks to have an order filled....that's why they want me to hold off for now. Personally, that speaks volumes of them as a company...they are more interested in being able to meet supply than just taking money from people.
I'll update again as soon as I can.
So....all is good now!!! Valvetrain is as quiet as can be expected, considering that the Fast102 transmits a bit more noise than the old ls6 intake. I'm a happy camper....finally!! This last weekend, the car went to the dyno and performed very nicely...even with the stock rockers (w/trunion upgrade) the valves were quiet. It was kind of a last-minute rush to get the car to the dyno, and as such I did not have time to swap the rockers out for aftermarket ones. I now am waiting for a set of Yella Terras to get here, so the car is parked until next week (when I have time to put them on). I just did not care for the swipe pattern, so I'm changing them out. Roller tips will be a nice upgrade as well.
I'll make sure to post a video of the car in the next week or so....it's 1000% better than it was before. I'm VERY happy with it.
I've spoken with the lifter manufacturer recently, and they are still preferring that I not mention them by name. They said that they are currently building up inventories of this lifter, and should be ready for me to reveal who they are in the next 3 weeks or so. This is not their only product line, and as such, it takes a while. They stressed that they just did not want to put any new customers in the position of having to wait 3-5 weeks to have an order filled....that's why they want me to hold off for now. Personally, that speaks volumes of them as a company...they are more interested in being able to meet supply than just taking money from people.
I'll update again as soon as I can.
TECH Regular
Joined: Jul 2011
Posts: 452
Likes: 2
According to the manufacturer:
The total travel of your parts are .156". Also, be aware that these parts have the same install height as an LS7 with a standard C-Clip. As you can see our R-Clip reduces the travel some, which places the piston in an optimal position and corrects some geometry. You should need about a .050" longer pushrod.
The total travel of your parts are .156". Also, be aware that these parts have the same install height as an LS7 with a standard C-Clip. As you can see our R-Clip reduces the travel some, which places the piston in an optimal position and corrects some geometry. You should need about a .050" longer pushrod.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo I hear ya. This is definitely not the only solution on the market, but I'm very happy with what I got.
What is different about these lifters compared to all the others ones out there? Glad to see you got yours quieted down. Mine sounds like a squirrel on a sewing machine.
Sorry, I have not taken any pics of the rockers since the cam swap...but can tell you that the "scrub" on the face of the rocker is substantial compared to the stock LS1 that I have in my shop. Vettenuts has a nice writeup of how it should look, and that's my plan now as well.
Tighter tolerances, better attention to quality control...they are a billet piece as well. Basically, they are just made by folks who care. LOL Seriously though, they've been great to deal with, and take great pride in what they produce. That's not to say that there are not other solutions out there, but this is the way that I decided to go.
See above reply. :-)
See above reply. :-)
TECH Regular
Joined: Jul 2011
Posts: 452
Likes: 2
Sorry, I have not taken any pics of the rockers since the cam swap...but can tell you that the "scrub" on the face of the rocker is substantial compared to the stock LS1 that I have in my shop. Vettenuts has a nice writeup of how it should look, and that's my plan now as well.
I'm assuming so. I did some more searching on this forum, and found a few threads (can't remember exactly where) that stated that .550 is about the most for stock rockers. I'm sure that I could have shimmed the stockers to get a better pattern....but if I was going to put in all that effort, I just decided to upgrade the whole setup. Besides...this way, my wallet feels lighter 
Before:
And today.....I forgot to raise the idle at all in the video, but this is about as loud as it gets...you can really hear the difference in the FAST intake.
I've logged about 12k on the car since the cam/lifter/tb/intake swap, and although it might not be obvious, the car is a hell of a lot quieter than it was before.
Last edited by salemetro; Oct 4, 2012 at 03:17 PM.
Awesome. But what we need is info on the lifter supplier. I do hear a bit of valvetrain noise in your 2nd video, but not too bad. Your 1st video is exactly what mine sounds like right now. 