FAST 102 gains over ported LS3 intake in bolt-on 6.0L G8
03-11-2010, 01:49 PM
#21
As you add airflow mods (like cam or cubes), the gains will be quite a bit larger. There were three reasons why I bought the FAST.
1. I plan on adding a cam in the near future and will need the higher flow the FAST 102 offers.
2. I have been interested in seeing how the FAST 102 compared to a ported factory intake in the mildest rectangular port engine that GM offers. If it shows gains in my 6.0L with bolt-ons and wimpy 200/208 .479/.474" 116LSA AFM camshaft, then it's going to gain big time in a hotter application.
3. Many people (mostly those selling them) claim that the ported factory LS3/L76 intake is every bit as good as the FAST. I wanted to find out if it was truth or fiction. My testing showed that at best, a ported intake was equal to the stock manifold, but certainly not better. The FAST on the other hand was measurably better than both the stock manifold and the ported stocker.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
03-11-2010, 08:27 PM
#22
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how long till another cam finds its way in to the car?
A dude on the G8 boards has a comp thumpr cam in his car, 219/233 or somewhere in that range on a tight LSA. he still has DOD. with the SLP 1.85 rockers his lift is a tad over .600". car runs pretty good too. I believe he was running 12.2 @ 115 on the stock tires
A dude on the G8 boards has a comp thumpr cam in his car, 219/233 or somewhere in that range on a tight LSA. he still has DOD. with the SLP 1.85 rockers his lift is a tad over .600". car runs pretty good too. I believe he was running 12.2 @ 115 on the stock tires
03-14-2010, 03:48 PM
#23
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Keep in mind this is over a Stage 2 ported intake. That porting work is worth lots of money too. The gains would probly be more over a bone stock intake, and make it more worth the money.
03-17-2010, 08:15 PM
#24
I think the FAST 102 should be the very last mod, because it cost so much for the gain/$$ ratio. Same story over again than with the last gen III engines it seems, marginal gains for big $$$..
..I have the FAST 92 on my LS1 so I'm not complaining, just giving my .02
03-18-2010, 05:29 AM
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I hear ya JohnnyStock. I guess it goes to show how good the factory LS3 intake is I guess. But if you are someone with a truck engine and want to convert to car style intake, if you are gonna get hosed on a LS3 intake, it might not be much more $$ for a Fast 102...depending on your deal.
Like in my case, I have an LQ4 on the stand and am considering putting L92/LS3 heads on it, my choice of intake is between the LS3 and a Fast 102. I say that because I want to build it into a 408 one day and those extra cubes are probly gonna like suckin thru that Fast better then the GM piece.
Like in my case, I have an LQ4 on the stand and am considering putting L92/LS3 heads on it, my choice of intake is between the LS3 and a Fast 102. I say that because I want to build it into a 408 one day and those extra cubes are probly gonna like suckin thru that Fast better then the GM piece.
03-18-2010, 06:36 AM
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Like in my case, I have an LQ4 on the stand and am considering putting L92/LS3 heads on it, my choice of intake is between the LS3 and a Fast 102. I say that because I want to build it into a 408 one day and those extra cubes are probly gonna like suckin thru that Fast better then the GM piece.
03-18-2010, 08:50 AM
#27
I hear ya JohnnyStock. I guess it goes to show how good the factory LS3 intake is I guess. But if you are someone with a truck engine and want to convert to car style intake, if you are gonna get hosed on a LS3 intake, it might not be much more $$ for a Fast 102...depending on your deal.
Like in my case, I have an LQ4 on the stand and am considering putting L92/LS3 heads on it, my choice of intake is between the LS3 and a Fast 102. I say that because I want to build it into a 408 one day and those extra cubes are probly gonna like suckin thru that Fast better then the GM piece.
Like in my case, I have an LQ4 on the stand and am considering putting L92/LS3 heads on it, my choice of intake is between the LS3 and a Fast 102. I say that because I want to build it into a 408 one day and those extra cubes are probly gonna like suckin thru that Fast better then the GM piece.
The good thing is I was planning to get the LS3 intake ported, so now its not part of my 'to do list' if I ever do boltons on a LS3 car.
On the other hand, I've seen thread with very good results on ported LS3 intakes and minimal gain with the new FAST 102...
10-21-2010, 12:03 PM
#28
hi Im thinking of blending the runners and port matching the fast 102mm on my l92 head equipped ls2 engine.
Do you guys think its a good idea?
I was suprised a stock 102mm fast outflowed a ported ls3 intake
pretty impressive
Do you guys think its a good idea?
I was suprised a stock 102mm fast outflowed a ported ls3 intake
pretty impressive
03-17-2015, 09:33 AM
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There has been so much speculation as to whether the FAST 102 would gain any power over a ported LS3 intake on a 6.0-6.2L engine with a stock long block, I decided to conduct my own scientific test. By scientific, I mean that only the manifold gains or losses alone would be shown.
We started off with a 2009 Pontiac G8 with a 6.0L L76 engine with AFM/DOD, stock 90mm throttle body, American Racing 1 7/8" headers with dual cats, Vararam Cold Air Intake, ASP UD pulley, Yella Terra 1.85 rockers, and Comp 26918 beehive valve springs (so we could have better valve control above 6000 rpm). Stock cam, stock torque converter. All runs were same day, same dyno. The manifold swap was performed on the dyno.
The red run featured a Stage 2 ported LS3 intake manifold by an LS1Tech sponsor. This combo was super-tuned for best overall power. The blue run is with the FAST 102. It too was super-tuned. As you can see, even with the mildest of engines available with an L92/LS3 head, the FAST 102 intake manifold gains nicely over the most expertly ported factory intake. If you were to add significant airflow from a camshaft or increase cubes, the gains would only be larger. Remember, this is the smallest, mildest motor that come with rectangular port heads.
For those who can't read the dyno sheet, the ported intake made 389.3rwhp/387.6rwtq. The FAST 102 made 393.7rwhp/390.6rwtq. Although the peak gains were only 4.4/4.0, the gains at other rpm were much higher.
We started off with a 2009 Pontiac G8 with a 6.0L L76 engine with AFM/DOD, stock 90mm throttle body, American Racing 1 7/8" headers with dual cats, Vararam Cold Air Intake, ASP UD pulley, Yella Terra 1.85 rockers, and Comp 26918 beehive valve springs (so we could have better valve control above 6000 rpm). Stock cam, stock torque converter. All runs were same day, same dyno. The manifold swap was performed on the dyno.
The red run featured a Stage 2 ported LS3 intake manifold by an LS1Tech sponsor. This combo was super-tuned for best overall power. The blue run is with the FAST 102. It too was super-tuned. As you can see, even with the mildest of engines available with an L92/LS3 head, the FAST 102 intake manifold gains nicely over the most expertly ported factory intake. If you were to add significant airflow from a camshaft or increase cubes, the gains would only be larger. Remember, this is the smallest, mildest motor that come with rectangular port heads.
For those who can't read the dyno sheet, the ported intake made 389.3rwhp/387.6rwtq. The FAST 102 made 393.7rwhp/390.6rwtq. Although the peak gains were only 4.4/4.0, the gains at other rpm were much higher.
01-11-2018, 09:11 AM
#39
There has been so much speculation as to whether the FAST 102 would gain any power over a ported LS3 intake on a 6.0-6.2L engine with a stock long block, I decided to conduct my own scientific test. By scientific, I mean that only the manifold gains or losses alone would be shown.
We started off with a 2009 Pontiac G8 with a 6.0L L76 engine with AFM/DOD, stock 90mm throttle body, American Racing 1 7/8" headers with dual cats, Vararam Cold Air Intake, ASP UD pulley, Yella Terra 1.85 rockers, and Comp 26918 beehive valve springs (so we could have better valve control above 6000 rpm). Stock cam, stock torque converter. All runs were same day, same dyno. The manifold swap was performed on the dyno.
The red run featured a Stage 2 ported LS3 intake manifold by an LS1Tech sponsor. This combo was super-tuned for best overall power. The blue run is with the FAST 102. It too was super-tuned. As you can see, even with the mildest of engines available with an L92/LS3 head, the FAST 102 intake manifold gains nicely over the most expertly ported factory intake. If you were to add significant airflow from a camshaft or increase cubes, the gains would only be larger. Remember, this is the smallest, mildest motor that come with rectangular port heads.
For those who can't read the dyno sheet, the ported intake made 389.3rwhp/387.6rwtq. The FAST 102 made 393.7rwhp/390.6rwtq. Although the peak gains were only 4.4/4.0, the gains at other rpm were much higher.
We started off with a 2009 Pontiac G8 with a 6.0L L76 engine with AFM/DOD, stock 90mm throttle body, American Racing 1 7/8" headers with dual cats, Vararam Cold Air Intake, ASP UD pulley, Yella Terra 1.85 rockers, and Comp 26918 beehive valve springs (so we could have better valve control above 6000 rpm). Stock cam, stock torque converter. All runs were same day, same dyno. The manifold swap was performed on the dyno.
The red run featured a Stage 2 ported LS3 intake manifold by an LS1Tech sponsor. This combo was super-tuned for best overall power. The blue run is with the FAST 102. It too was super-tuned. As you can see, even with the mildest of engines available with an L92/LS3 head, the FAST 102 intake manifold gains nicely over the most expertly ported factory intake. If you were to add significant airflow from a camshaft or increase cubes, the gains would only be larger. Remember, this is the smallest, mildest motor that come with rectangular port heads.
For those who can't read the dyno sheet, the ported intake made 389.3rwhp/387.6rwtq. The FAST 102 made 393.7rwhp/390.6rwtq. Although the peak gains were only 4.4/4.0, the gains at other rpm were much higher.
