Its coo, no problem.

damn I feel like a high jacker, or thread snatcher.

 

Your confusing and crossing up a lot of info, this is bad side of internet forums.

Patrick tested on his G8 ,with L92 port heads and the FAST intake didnt show a ton of gains until higher RPM, where it gained 20rwhp over the stock piece where stock one ran out of air. He also tested two "professionally ported by sponcers" stock manifolds and they both lost power to the OEM one.

Patrick later swapped to cathedral port AFR 230V2 heads and a Mamo ported FAST cathedral intake. I havent seen him test against any stock intake with the cathedral port setup.

Texas speed also tested a "ported OEM LS3 " intake and it too lost power...Ill dig up the results. I found a bunch of positive results before I purchased my FAST LS3 intake.

 

what about the LY6 intake off the truck?

 

It doesn't clear most car hood lines.

 

I believe you are wrong and you didnt read the whole thread the TOPIC is Heads and CAM Ls3's!

Patrick tested an L76 6.0 from his G8 with an L76 intake, he also tested 2 L76 intakes that were ported by sponsors NOT Ls3 intakes.

here are his results FROM an L76 6.0 with 1 7/8 headers, 1.85 Rockers(increasing his LIFT), Vararam Cold Air Intake, ASP UD pulley, maybe the gain up top has to do with the headers, rockers and CAI because the L76 intake(not the Ls3) is holding its own, and in some spots making more torque and HP than the FAST but I didnt see a 20 HP spike on this graph. Not only that but they were tested on different days and weather but on the same dyno. DONT get me wrong please, im in no way bashing FAST at all. Hell id buy one but before I do I want to hear from other members or sponsors with experience with it. Thats all, I also am not trying to contradict you, I know you are a man in the KNOW and have plenty of knowledge in this hobby of ours.

 

About this part your right, and so am I. That graph is exactly what I explained, L92 heads/LS3 intake. Not much gain down low, but 20rwhp at the end.

Your getting caught up in the details that are insignificant and trying hard to catch me being wrong. Like LS3 vs L76 intake, EXACTLY the same thing as far as power goes. The difference in the map sensor, hose clamp vs "clip on" PCV ports, and that one has a PCV port that sticks out to the middle of the plenum is irrelevant. The runners are the same, the plenum is the same. I understand all of the intakes for these engines, I have all of them and I have studied all of them.

This is where I said you were confused. You explained the graph you just posted, but said it was for cathedral ports. I simply said what you were describing was actually from an L92heads/LS3 intake test and that you were confusing it with his new cathedral port setup he runs now.

I also found the 5 dyno graphs of FAST vs LS3 intakes that helped convince me to go ahead and get the FAST(But my wife is calling me to get off the computer, ill post later). Remember FAST only says the LS3 version makes 14hp/11ftlb @ flywheel. All of the graphs I have show the intake doing exactly what they claim or more.

 

Ok can we see the data that you found. The Pat G test I feel was about selling a sponsers parts and not testing the original GM parts. Send the parts to me and I'll let them eat at the track not the dyno. I guess in my dreams.
I believe the Fast does work but at what cost. $$$ for the gain. I would do every thing else then think about the FAST and T.body. The 102 is like an elec. H2O pump lots of cash for small gain if any. MHOP.

 

I looked at everything I can find, and here is what I found to be a commonality in most dyno results. The FAST is about even below 3500RPM, after 3500RPM it starts to pull alway from stock.

100% Stock Pontiac G8, no tune


100% Stock 2010 Camaro, no tune, at Spectacle Solutions



Texas speed engine dyno



GM High Tech


Vengance racing



If you look at Pat G's closely, the FAST pull looks as if something was happening between 5200-5800(Theres a flat spot). Where it should continue on a smooth curve and meet up at the end, like the rest of the graphs. I made it orange to show what Im talking about.

 

Thanks . It looks like the 102 has some nice gains on those tests. Looks like a 10th or 2 and maybe a couple mph gains with it.

 

Here is 2010 camaro that we HPS/APF did a back to back comparison on with a Comp cam and set of HPS CNC Ported LS3 heads and then added the Fast102 intake. Click the link for the dyno graph

The 2010camaro :
Stock 365rwhp 370rwtq

ARH Headers and Borla Catback with custom Comp Cam and stock LS3 intake..
472rwhp 429rwtq

Added HPS CNC Ported LS3 Heads
494rwhp 446rwtq

Added Fast 102 Intake
510rwhp 457rwtq

We are very pleased with the gains with just the addition of CNC porting on the LS3 heads. Adding the Fast 102 Intake made a great improvement as well.
Click link for graph.
http://www.musclecar-evolution.com/f...0&d=1277430377



Chris Hunter
Hunters Performance Solutions
678-551-8422

 

Here is the graph for those who dont have an account on that forum.

 

Wow nice comparisons for sure, but it seems like it needs a power adder or a bigger CID to push through the intake to make more power... It seems like the stock stuff ported does just as well, but still falls off where big cams want to live like mine... Designed from RPM range from 3500 to 7500... :-/

 

7500 RPM need a completely different manifold. The FAST seems to be good to 6800-7000ish the way it is.

The kicker is that the FAST 102mm, with its removable runners "could" be reconfigured with shorter runners that will do 7500+ RPM. But "Race" runners would make it give up torque through the midrange for larger gains at high RPM.

 

Yeah man for sure that makes alot of sense. The camshaft doesn't pulling until 3000 an actually it doesnt turn on until about 3500 so something like the vic jr wouldn't be that bad of a idea, but i'd rather not be spinning those kind of RPMs on the street unless it's racing.

 

Thanks for info...awesome comparison. I have a fast 102 on my ls7, 427 and I believe it a contributor to the hp and flat curve to 7k...but do not have a comparison with a stock intake.

 

Looks like I'm going to be joining the 102 crowd. On the bottle I'm running out of gear and having to cross the stripe at 7000+. With the 76 intake it's laying down and not making power. On motor it's pulling 128-129 mph. On the bottle it's only gaining 7-8 mph over all. I'm gaining that much in the 1/8. Maybe the fast can give me a couple 100 more rpm. The N2O is kicking off at 7000 and I'm still 100-150 feet short of the line. it's that or shift into OD early so the bottle doesn't kick off.

 

Damn thats for sure man sounds like the right thing to do for those of us looking for that little extra something something for our combo's in all purpose conditions... I'm just gonna cut out some material with a local guru an see what we can come up with as far as laying down for an if it needs more air to push numbers it'll be a power adder car over this winter so it'll all work out for the best since the L76 can't perform anymore for what it's worth an the vic jr just loses to much bottom end for me to pick the peak number up... I wonder how well the fast will do with a 660 lift camshaft on a 408 with 11:5:1 comp with 4:10's through a M6 an a 28" 295/55/15...

 

L76 intake comes on what? what part # and can a 92mm aftermarket 4 bolt throttle body fit?

 

L76 is discontinued, it was part number 12590124. The LS3 intake is the same intake with minor differences that do not affect performance. They both will run with a 90mm or 92mm aftermarket TB.

I have run both before, and I didnt keep either the L76 or the LS3.

 

Yeah he is right they both fit it. I'm currently running TSP's ported 92mmTB an it has worked fine for me with zero problems.

SweetS10V8, So are you running the Fast LSXR 102 now finally?