PORTED FAST vs Ported LS2 intake manifold isnt close
06-09-2009, 03:48 AM
#1
Tech Contributor
Thread Starter
PORTED FAST vs Ported LS2 intake manifold isnt close
I've been seeing lately that some say the ported stocker vs ported FAST isnt that big a difference.
From a happy customer who had his FAST installed and tuned at an independent shop:
Passing power is greatly improved as is light to light driving for the everyday driver who doesnt want a high rpm only mod for drag racing.
My manifolds are ported and matched to stock heads unless you advise me of a different head.
Here is a lower 1/2 of the manifold being checked for port match. The manifold is on a stock 243 LS2 head to illustrate the airflow path:
Ported TB available at $100. Lots of extra work is done such as an epoxy painted frame and a polished motor assembly:
Throttle body on my car:
Pic of the finished plenum:
Runners arent hacked. Transitions are smoothed and then high speed buffing removes the tool marks. This is before the buffing:
The modded rear graft is held in place by large amounts of GOOP!! (kidding of course). JB Weld is used here and smoothed perfectly:
The rear mod pictured above is to allow it to fit the 2005 to 2007 without hacking up the firewall.
On the car:
Current FAST prep pricing is $339.00. It includes everything need to install it from fuel rail to injector o-rings. Return shipping is included to the cont 48 states. PAYPAL accepted with no additional fees.
PM for details/deals
From a happy customer who had his FAST installed and tuned at an independent shop:
EDITED: Posted the Dyno sheets from page 2 (Thanks Spinmonster!)
Two highly debated topics on here... is the FAST worth it over the Stock ported intake? And the highly debated which header topic. In this review it is the Kooks vs the LG.
Okay, first off let me start by saying thanks to a few people.
First off, Louis and Anthony and the whole group at LG Motorsports. There is no other better shop that takes care of you like these guys do!
They exceed every expectation! I won't take my car anywhere else. I have made the 4 1/2 hour round trip to LG, 3 times in the last month.
That tells you what a great job these guys do!
Second, Thanks go out to Guy (Spinmonster) for his work on my FAST and for his continuing CF guidance and wisdom.
The CAR
The Mods before FAST:
*Vararam VR SC1
*Ported TB
*Ported Stock Intake
*Kooks 1 3/4 headers
*Catless xpipe
*B&B Bullets
*Full Dyno Tune.
Starting pull: 369/361. 94 degrees, with 25% humidity.
First Test: Ported SPINFast 92mm vs. Ported Stock Intake
The only change being made at this current time, which was later on in the day was the SPINFast intake. You will notice that the temperature had increased to almost 104 degrees.
386/381. 104 degrees. Gain of 17hp/20tq
What is even more substantial is that this gain occurs all the way through the band on torque and gradually increases on the hp.
You will notice on the graph that there is a 13hp/17tq gain at 4k and both continually increase all the way to the end of the pull.
Again, bear in mind that this is at 10 degrees hotter which could possibly account for a little more room to gain.
Guy (Spinmonster) will be posting the dyno sheets for me so that everyone can get a look at them.
Two highly debated topics on here... is the FAST worth it over the Stock ported intake? And the highly debated which header topic. In this review it is the Kooks vs the LG.
Okay, first off let me start by saying thanks to a few people.
First off, Louis and Anthony and the whole group at LG Motorsports. There is no other better shop that takes care of you like these guys do!
They exceed every expectation! I won't take my car anywhere else. I have made the 4 1/2 hour round trip to LG, 3 times in the last month.
That tells you what a great job these guys do!
Second, Thanks go out to Guy (Spinmonster) for his work on my FAST and for his continuing CF guidance and wisdom.
The CAR
The Mods before FAST:
*Vararam VR SC1
*Ported TB
*Ported Stock Intake
*Kooks 1 3/4 headers
*Catless xpipe
*B&B Bullets
*Full Dyno Tune.
Starting pull: 369/361. 94 degrees, with 25% humidity.
First Test: Ported SPINFast 92mm vs. Ported Stock Intake
The only change being made at this current time, which was later on in the day was the SPINFast intake. You will notice that the temperature had increased to almost 104 degrees.
386/381. 104 degrees. Gain of 17hp/20tq
What is even more substantial is that this gain occurs all the way through the band on torque and gradually increases on the hp.
You will notice on the graph that there is a 13hp/17tq gain at 4k and both continually increase all the way to the end of the pull.
Again, bear in mind that this is at 10 degrees hotter which could possibly account for a little more room to gain.
Guy (Spinmonster) will be posting the dyno sheets for me so that everyone can get a look at them.
My manifolds are ported and matched to stock heads unless you advise me of a different head.
Here is a lower 1/2 of the manifold being checked for port match. The manifold is on a stock 243 LS2 head to illustrate the airflow path:
Ported TB available at $100. Lots of extra work is done such as an epoxy painted frame and a polished motor assembly:
Throttle body on my car:
Pic of the finished plenum:
Runners arent hacked. Transitions are smoothed and then high speed buffing removes the tool marks. This is before the buffing:
The modded rear graft is held in place by large amounts of GOOP!! (kidding of course). JB Weld is used here and smoothed perfectly:
The rear mod pictured above is to allow it to fit the 2005 to 2007 without hacking up the firewall.
On the car:
Current FAST prep pricing is $339.00. It includes everything need to install it from fuel rail to injector o-rings. Return shipping is included to the cont 48 states. PAYPAL accepted with no additional fees.
PM for details/deals
Last edited by SpinMonster; 06-09-2009 at 03:59 AM.
06-09-2009, 04:05 PM
#4
Melting Slicks
Member Since: Sep 2007
Location: READING PA
Posts: 2,597
Likes: 0
Received 3 Likes
on
3 Posts
St. Jude Donor '08-'09-'10
Here we go again ?
WOW, we have had this discussion about ported oem vs ported fast.
and the great majority of us who went from ported oem to ported
FAST will tell you and show you the difference in this remarkable
Manifold is phenominal. For me the torque curve had a spread of nearly
40 rwtq at around 4800 rpm and the average spread was about 20 Rwtq.
If it wasnt for the fact the FAST has not shown up there for the LS3 is
the one thing holding me back from using the l92 setup as I am still
preparing for a CAM. Spin is the best and if any of you guys are planning
to go to a FAST by all means ship it out to him for the porting and the
three modifications . Leon
and the great majority of us who went from ported oem to ported
FAST will tell you and show you the difference in this remarkable
Manifold is phenominal. For me the torque curve had a spread of nearly
40 rwtq at around 4800 rpm and the average spread was about 20 Rwtq.
If it wasnt for the fact the FAST has not shown up there for the LS3 is
the one thing holding me back from using the l92 setup as I am still
preparing for a CAM. Spin is the best and if any of you guys are planning
to go to a FAST by all means ship it out to him for the porting and the
three modifications . Leon
06-09-2009, 08:31 PM
#5
Melting Slicks
WOW, we have had this discussion about ported oem vs ported fast.
and the great majority of us who went from ported oem to ported
FAST will tell you and show you the difference in this remarkable
Manifold is phenominal. For me the torque curve had a spread of nearly
40 rwtq at around 4800 rpm and the average spread was about 20 Rwtq.
If it wasnt for the fact the FAST has not shown up there for the LS3 is
the one thing holding me back from using the l92 setup as I am still
preparing for a CAM. Spin is the best and if any of you guys are planning
to go to a FAST by all means ship it out to him for the porting and the
three modifications . Leon
and the great majority of us who went from ported oem to ported
FAST will tell you and show you the difference in this remarkable
Manifold is phenominal. For me the torque curve had a spread of nearly
40 rwtq at around 4800 rpm and the average spread was about 20 Rwtq.
If it wasnt for the fact the FAST has not shown up there for the LS3 is
the one thing holding me back from using the l92 setup as I am still
preparing for a CAM. Spin is the best and if any of you guys are planning
to go to a FAST by all means ship it out to him for the porting and the
three modifications . Leon
Spin's intake mods and Porting are great!!!and great Costumer Service !!!!
and St Judes children come First!!!!
