Professional products vs Fast vs LS6 intake numbers
Thread Starter
Teching In
Joined: Sep 2007
Posts: 18
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From: Edmonton, Alberta,
Professional products vs Fast vs LS6 intake numbers Hey guys so i got my LS1 out of my 89 FC RX7 setup on an engine dyno on sunday and also figured that while we were at it we might as well test the Professional Products intake manifold (mine) vs the LS6 manifold and the Fast manifold
the motor is a stock bottom end 2001 LS1 with the following
TSP MS3 cam
ARP rod bolts
stage 2.5 5.5L ported.CNC'd heads combo from TSP with upgraded valvetrain
Professional Products 96mm intake manifold
RevXtreme 95mm throttle body
36# flow matched injectors
JTR 1 7/8" longtube ceramic coated headers
tuned on HPTuners prosuite
made 526HP @ 6900rpm and 447FT/LBS @5200rpm... I'd say thats pretty decent for about 3500 bucks canadian, i am pleased with the numbers... and going in my 2700lbs car it will be a rocket!
so after we finished the tuning on my setup we figured we'd test against the other common intakes since it only takes like 20 min to change them out so they could be all dyno tested under the exact same conditions
here are the results
stock LS6 intake with stock LS1 78mm throttle body - 517HP 450TQ (blue line) about 200 bucks
my setup listed above (red line) about $800 w/ manifold and TB
Fast 92mm intake with 90mm throttle body - 535.6HP 459.2TQ (black line) about $1200 or more w/ manifold and TB
what do you guys think?
the motor is a stock bottom end 2001 LS1 with the following
TSP MS3 cam
ARP rod bolts
stage 2.5 5.5L ported.CNC'd heads combo from TSP with upgraded valvetrain
Professional Products 96mm intake manifold
RevXtreme 95mm throttle body
36# flow matched injectors
JTR 1 7/8" longtube ceramic coated headers
tuned on HPTuners prosuite
made 526HP @ 6900rpm and 447FT/LBS @5200rpm... I'd say thats pretty decent for about 3500 bucks canadian, i am pleased with the numbers... and going in my 2700lbs car it will be a rocket!
so after we finished the tuning on my setup we figured we'd test against the other common intakes since it only takes like 20 min to change them out so they could be all dyno tested under the exact same conditions
here are the results
stock LS6 intake with stock LS1 78mm throttle body - 517HP 450TQ (blue line) about 200 bucks
my setup listed above (red line) about $800 w/ manifold and TB
Fast 92mm intake with 90mm throttle body - 535.6HP 459.2TQ (black line) about $1200 or more w/ manifold and TB
what do you guys think?
Last edited by jarcher; May 8, 2009 at 05:39 PM.
Good report. Looks like the FAST intake is way better at producing power under the curve.
__________________
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Man, that may be the best intake comparison thread ever.
Well done, and thanks for taking one for the team.
Well done, and thanks for taking one for the team.
Hi jacher,
That may be the best intake comparison thread ever!!!
Looks like the FAST intake is way better at producing power everywhere!!!
Thank you for sharing.
Christian
That may be the best intake comparison thread ever!!!
Looks like the FAST intake is way better at producing power everywhere!!!
Thank you for sharing.
Christian
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Nice comparo, but I have to say that LS6 intake is doing very well even if it has a stock 78mm TB! Would love to see the LS6 opened to 90-95mm one day against those intake. I know its been done, but never in a good comparison like that...
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I am satisfied with the excellent comparison. Some people are never happy, but I am quite impressed with the effort. Engine dyno numbers a LOT HIGHER then chassis for sure. Still an excellent comparison.
thank you for the great comparison!
I'm amazed how the fast builds power everywhere, usually people say they lose power down low, I know my car felt stronger everywhere, especially above 4k rpm
would be awesome to see the tpis ls6 and ported fast thrown into the mix too, but this was awesome either way!
I'm amazed how the fast builds power everywhere, usually people say they lose power down low, I know my car felt stronger everywhere, especially above 4k rpm
would be awesome to see the tpis ls6 and ported fast thrown into the mix too, but this was awesome either way!
Great comparison. Looks like the Pro Products can hold it's own above the LS6 and compared to the FAST, despite what the common concensus is among this board. Seems to me that a LS6<10hp<FAST difference is easily worth the money.....This coming from a ported FAST owner.
Once factor I would have liked to see was the heat differences, to prove/disprove the Pro Products heat soak issues, or lack there of.
Once factor I would have liked to see was the heat differences, to prove/disprove the Pro Products heat soak issues, or lack there of.
I would agree if the power gain were only up top...my car is a daily driver so having that extra power above 4k instead of above 5500 is a plus to me.
Now the cost of a fast is retarded...mine was bought used for $500, otherwise I would have a ls6 instead.
Now the cost of a fast is retarded...mine was bought used for $500, otherwise I would have a ls6 instead.
This is a great post!!!!! I have been waiting a long time to see this combo on a engine dyno,since its basicaly what im running.Great Job.The fast has really good torque on the heads and cam setup,compared to the other two.Looks to be about 15 ft lbs at 4500.
Thread Starter
Teching In
Joined: Sep 2007
Posts: 18
Likes: 0
From: Edmonton, Alberta,
ya the reason for the 78mm TB on the LS6 manifold was cause we didnt prepare for this test and kinda just decided to do it with what we had lying around the shop after tuning my setup
and as far as the heat soak issue... my motor was run hard for about 2 hours doing the tuning with the Pro products manifold on before doing this comparison so it was really very warm haha... whereas the other two were nice and cool and run as soon as they were strapped on
no doubt the FAST is far superior to the other two over the entire curve. however i do think the the pro products may have made a few more ponies if it had been cool like the other two... either way its some good info i thought i'd post up since i know it has always been a big question for many LS guys
and as far as the heat soak issue... my motor was run hard for about 2 hours doing the tuning with the Pro products manifold on before doing this comparison so it was really very warm haha... whereas the other two were nice and cool and run as soon as they were strapped on
no doubt the FAST is far superior to the other two over the entire curve. however i do think the the pro products may have made a few more ponies if it had been cool like the other two... either way its some good info i thought i'd post up since i know it has always been a big question for many LS guys
