Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

lsxr vs lsxrt results yet?

Thread Tools
 
Search this Thread
 
Old Nov 22, 2011 | 11:50 AM
  #1  
Cosmos's Avatar
Thread Starter
TECH Enthusiast
iTrader: (15)
 
Joined: Oct 2010
Posts: 624
Likes: 0
Default lsxr vs lsxrt results yet?

Anybody get dyno results of the lsxr vs the lsxrt? Im buying either one this winter for my car and don't mind cutting it up for the lsxrt if it is that much better than the car fast (FASTLSXR). I don't wanna cut my car up for 10rwhp and 5 flbs. Anyone have results? You can pm me info if ya want.
Reply
Old Nov 23, 2011 | 11:15 AM
  #2  
Cosmos's Avatar
Thread Starter
TECH Enthusiast
iTrader: (15)
 
Joined: Oct 2010
Posts: 624
Likes: 0
Default

Anyone?
Reply
Old Nov 24, 2011 | 05:59 AM
  #3  
bayer-z28's Avatar
TECH Veteran
20 Year Member
iTrader: (14)
 
Joined: Apr 2005
Posts: 4,085
Likes: 1
From: N. Falmouth MA
Default

You don't put an LSXRt on a car. It's won't fit since it's a truck intake.
Reply
Old Nov 24, 2011 | 06:39 AM
  #4  
98SSClone's Avatar
On The Tree
iTrader: (2)
 
Joined: Jul 2011
Posts: 162
Likes: 0
From: Tampa, FL
Default

It could fit... It just depends on what car it's going in. The truck intakes will fit in some applications, like the fox body mustangs...
Reply
Old Nov 24, 2011 | 07:36 AM
  #5  
bayer-z28's Avatar
TECH Veteran
20 Year Member
iTrader: (14)
 
Joined: Apr 2005
Posts: 4,085
Likes: 1
From: N. Falmouth MA
Default

The truck intake is for a truck for a reason; they need the low RPM grunt to haul around trailers, payload, not to mention a 6000lb dry weight.
IMO; it'd be overkill and a waste of time and money to put it on a car. I don't foresee any difference or gain (Over the LSXr.) The LSXr has all the plenum volume you should need.
Reply
Old Nov 24, 2011 | 08:08 AM
  #6  
Bill00Formula's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Nov 2001
Posts: 1,066
Likes: 11
From: West Palm Beach, Fl
Default

My understanding was the fast truck manifold was much better because they did have the room for better airflow. It wasn't because it was tuned for trucks. Someone was going to/did test it but got bent out of shape because someone was giving them a hard time on the forum so said they wouldn't post the results. I would love to see a comparison.
Reply
Old Nov 24, 2011 | 08:09 AM
  #7  
SweetS10V8's Avatar
12 Second Club
iTrader: (4)
 
Joined: Jun 2004
Posts: 2,580
Likes: 3
From: Michigan
Default

Originally Posted by Cosmos
I don't wanna cut my car up for 10rwhp and 5 flbs.
Then you dont want to run the LSXRT. Its the most powerful intake that FAST makes, but its not worth hacking up your car for. Its the one to pick if you have enough hood clearance, otherwise just run the car intake.

Originally Posted by bayer-z28
The truck intake is for a truck for a reason; they need the low RPM grunt to haul around trailers, payload, not to mention a 6000lb dry weight.
IMO; it'd be overkill and a waste of time and money to put it on a car. I don't foresee any difference or gain (Over the LSXr.) The LSXr has all the plenum volume you should need.
The runners in the LSXRT are straight, and the runner in the LSXR are curved to fit in Camaros and Corvettes. Air doesnt like to turn........

The LSXRT doesnt make any low end grunt over the others, it just carries power better because of improved runners and increased plenum volume. It doesnt have anything to do with being a truck manifold, it has to do with the amount of space avaliable to straighten the runners.

Edit:
Originally Posted by Bill00Formula
My understanding was the fast truck manifold was much better because they did have the room for better airflow. It wasn't because it was tuned for trucks.
We posted the same info at the same time....haha, but you are correct.
Reply
Old Nov 24, 2011 | 09:08 AM
  #8  
bayer-z28's Avatar
TECH Veteran
20 Year Member
iTrader: (14)
 
Joined: Apr 2005
Posts: 4,085
Likes: 1
From: N. Falmouth MA
Default

Originally Posted by SweetS10V8

The LSXRT doesnt make any low end grunt over the others, it just carries power better because of improved runners and increased plenum volume. It doesnt have anything to do with being a truck manifold, it has to do with the amount of space avaliable to straighten the runners.
Ahh.... Thanks, but we can agree, in general, that a truck needs more low end grunt..... For stump pulling and whatnot.... -All modifications aside. I just figured it was an increased plenum volume over the LSXR.


But the LSXR intakes are basically an ITB intake that shares a common plenum, and the truck intakes have straight runners.... -From what I gather. When I took my 102 apart I was in awe... Such a piece of engineering, it's amazing..
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-4

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-5

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
Old Nov 24, 2011 | 03:07 PM
  #9  
Cosmos's Avatar
Thread Starter
TECH Enthusiast
iTrader: (15)
 
Joined: Oct 2010
Posts: 624
Likes: 0
Default

I wouldn't mind cutting my car up for it, but it would have to consistently beat the lsxr by at least 20 rwhp. It would be nice to see some dyno results though. I'm just going to run the lsxr and a 92.
Reply
Old Nov 24, 2011 | 09:00 PM
  #10  
SweetS10V8's Avatar
12 Second Club
iTrader: (4)
 
Joined: Jun 2004
Posts: 2,580
Likes: 3
From: Michigan
Default

Originally Posted by Cosmos
I wouldn't mind cutting my car up for it, but it would have to consistently beat the lsxr by at least 20 rwhp. It would be nice to see some dyno results though. I'm just going to run the lsxr and a 92.
It doesnt beat it by 20hp.....
Reply
Old Nov 24, 2011 | 10:47 PM
  #11  
Cosmos's Avatar
Thread Starter
TECH Enthusiast
iTrader: (15)
 
Joined: Oct 2010
Posts: 624
Likes: 0
Default

Do you have graphs?
Reply
Old Nov 25, 2011 | 06:58 AM
  #12  
SweetS10V8's Avatar
12 Second Club
iTrader: (4)
 
Joined: Jun 2004
Posts: 2,580
Likes: 3
From: Michigan
Default

Not with me, but I have done the testing.
Reply
Old Nov 25, 2011 | 10:01 AM
  #13  
NY02ws6's Avatar
On The Tree
 
Joined: Oct 2011
Posts: 132
Likes: 0
From: 20 minutes from the Valley...
Default

Originally Posted by bayer-z28
Ahh.... Thanks, but we can agree, in general, that a truck needs more low end grunt..... For stump pulling and whatnot.... -All modifications aside. I just figured it was an increased plenum volume over the LSXR.
Yep, lots of stump pulling in TBSSs and drag trucks...cuz ya know people put FAST LSXRTs on their farm trucks to haul hay to town and ****
Reply
Old Nov 25, 2011 | 04:42 PM
  #14  
bayer-z28's Avatar
TECH Veteran
20 Year Member
iTrader: (14)
 
Joined: Apr 2005
Posts: 4,085
Likes: 1
From: N. Falmouth MA
Default

^ Seriously dude?? Why even respond..... childish remark. ........... Not everyone DRAGS their trucks. There may just be a couple people out there who have added LT's and a FAST intake to their 2500 HD's so they can tow their trailers a bit easier on the HW.

Last edited by bayer-z28; Nov 25, 2011 at 04:53 PM.
Reply
Old Nov 25, 2011 | 04:46 PM
  #15  
ls1 1990 VN's Avatar
TECH Fanatic
20 Year Member
 
Joined: Aug 2004
Posts: 1,373
Likes: 4
From: Auckland, Nth Is, New Zealand.
Default

Originally Posted by NY02ws6
Yep, lots of stump pulling in TBSSs and drag trucks...cuz ya know people put FAST LSXRTs on their farm trucks to haul hay to town and ****
Copperhead Rd stuff ya mean
Reply
Old Nov 25, 2011 | 07:04 PM
  #16  
SweetS10V8's Avatar
12 Second Club
iTrader: (4)
 
Joined: Jun 2004
Posts: 2,580
Likes: 3
From: Michigan
Default

Ive had a few people tell me they do gain 2-3mpg after they install the LSXRT, I have no way of verifying it but its what ive been told.
Reply
Old Nov 26, 2011 | 12:34 PM
  #17  
Cosmos's Avatar
Thread Starter
TECH Enthusiast
iTrader: (15)
 
Joined: Oct 2010
Posts: 624
Likes: 0
Default

Originally Posted by SweetS10V8
Ive had a few people tell me they do gain 2-3mpg after they install the LSXRT, I have no way of verifying it but its what ive been told.
Not cutting my car up for MPGS lol. If you can get some graphs for me I would be greatful. My car is max effort for the most part and will stay that way once I do a stroker motor.
Reply
Old Nov 26, 2011 | 05:20 PM
  #18  
MiniLSx's Avatar
Staging Lane
 
Joined: Nov 2011
Posts: 70
Likes: 0
Default

Originally Posted by bayer-z28
^ Seriously dude?? Why even respond..... childish remark. ........... Not everyone DRAGS their trucks. There may just be a couple people out there who have added LT's and a FAST intake to their 2500 HD's so they can tow their trailers a bit easier on the HW.
thats what i planned to do to my 1500. just needs a little more *oomph* i dont intend to run the 1/4 mile with it anytime soon lol
Reply




All times are GMT -5. The time now is 10:24 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE