Corvette Performance
C5 | Z06 | C6 | ZR1 | C7

LG Motorsports 402 + Vengeance ported FAST 92mm = 507 rwhp 500 rwtq FIRST PULL !!

Thread Tools
 
Search this Thread
 
Old Jan 7, 2009 | 06:36 AM
  #41  
Photochop's Avatar
11 Second Club
15 Year Member
iTrader: (74)
 
Joined: Jun 2005
Posts: 2,742
Likes: 4
From: In the garage
Default

Congrats man! Glad to see it cracked 500/500
Reply
Old Jan 7, 2009 | 07:25 AM
  #42  
JG853's Avatar
Launching!
20 Year Member
 
Joined: May 2005
Posts: 255
Likes: 0
Default

Looks good - Congrats Doug

Joel G
Reply
Old Jan 7, 2009 | 07:30 AM
  #43  
knappbunch's Avatar
Launching!
 
Joined: May 2008
Posts: 282
Likes: 0
From: va beach
Default

lookin good man great numbers it will feel like a million bucks to get itback I got mine christmas eve and have been enjoying it ever since. Took it on its first road trip only 2 1/2 hrs each waybut runs great on the highway and 70 to 120 happens before you know it. My car is the one in the va speed 402 thread. getting my o2's and my racetronixs kit next week and in for more tunning should be great.
Reply
Old Jan 7, 2009 | 08:23 AM
  #44  
allngn_c5's Avatar
Thread Starter
TECH Senior Member
iTrader: (3)
 
Joined: Apr 2006
Posts: 6,524
Likes: 1
From: Western Burbs of Detroit
Default

Originally Posted by knappbunch
lookin good man great numbers it will feel like a million bucks to get itback I got mine christmas eve and have been enjoying it ever since. Took it on its first road trip only 2 1/2 hrs each waybut runs great on the highway and 70 to 120 happens before you know it. My car is the one in the va speed 402 thread. getting my o2's and my racetronixs kit next week and in for more tunning should be great.
You got a pretty stout car bro. Thanks for the compliments. Be sure to post your numbers after Shawn makes those changes. She's going to be even more powerful.
Reply
Old Jan 7, 2009 | 11:19 AM
  #45  
Bobby @ LGM's Avatar
FormerVendor
 
Joined: Jan 2005
Posts: 40
Likes: 0
Default

Old vs New combo.
Reply
Old Jan 7, 2009 | 11:41 AM
  #46  
allngn_c5's Avatar
Thread Starter
TECH Senior Member
iTrader: (3)
 
Joined: Apr 2006
Posts: 6,524
Likes: 1
From: Western Burbs of Detroit
Default Same heads, cam as last year just more ci's (346 vs 402)

346 --------- - 402
3000 200/360 - 3000 240/420 +40/+60
3500 240/380 - 3500 280/430 +40/+50
4000 300/395 - 4000 360/470 +60/+75
4500 375/440 - 4500 420/485 +45/+45
5000 420/440 - 5000 460/485 +40/+45
5252 440/440 - 5252 480/480 +40/+40
5500 455/430 - 5500 490/465 +35/+35
6000 480/420 - 6000 505/440 +25/+20
6500 485/390 - 6500 500/400 +15/+10

These numbers are a rough estimate, NOT exact ...................... It does illustrate where and roughly how much more power an ls2 based 402 stroker makes VS a 346. As you can see the stroker starts falling off up top losing almost 100 rwtq but who cares when you still have 400 rwtq @ 6500 !! Not sure if a slightly larger runner would help maintain torque up top without losing down low. All in all this is a very STRONG balanced combo that should be problem free. Thanks to Louis and all the guys at LG Motorsports. Can't wait to get her back and go for a drive.

Last edited by allngn_c5; Jan 7, 2009 at 12:08 PM.
Reply
Old Jan 7, 2009 | 12:02 PM
  #47  
blown4.6's Avatar
Launching!
 
Joined: Aug 2006
Posts: 271
Likes: 0
From: Richardson, TX
Default

Originally Posted by Bobby @ LGM
Old vs New combo.
That torque curve is sexy
Out of curiousity what causes the torque to dip between 3000 and 3500?
Reply
Old Jan 7, 2009 | 12:09 PM
  #48  
Sigforty's Avatar
11 Second Club
20 Year Member
 
Joined: Jun 2005
Posts: 1,537
Likes: 0
From: Was New Orleans, but swam to Baton Rouge
Default

Originally Posted by allngn_c5
346 --------- 402
3000 200/360 - 3000 240/420 +40/+60
3500 240/380 - 3500 280/430 +40/+50
4000 300/395 - 4000 360/470 +60/+75
4500 375/440 - 4500 420/485 +45/+45
5000 420/440 - 5000 460/485 +40/+45
5252 440/440 - 5252 480/480 +40/+40
5500 455/430 - 5500 490/465 +35/+35
6000 480/420 - 6000 505/440 +25/+20
6500 485/390 - 6500 500/400 +15/+10

These numbers are a rough estimate, NOT exact ...................... It does illustrate where and roughly how much more power an ls2 based 402 stroker makes VS a 346. As you can see the stroker starts falling off up top losing almost 100 rwtq but who cares when you still have 400 rwtq @ 6500 !! Not sure if a slightly larger runner would help maintain torque up top without losing down low. All in all this is a very STRONG balanced combo that should be problem free. Thanks to Louis and all the guys at LG Motorsports. Can't wait to get her back and go for a drive.
Looks good. I know you will have to readjust your shift points now. You should love the low end torque when driving around. I can personally say, that I often do not even down shift from 6th because the torque makes it so much easier to pass people.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Jan 7, 2009 | 12:10 PM
  #49  
allngn_c5's Avatar
Thread Starter
TECH Senior Member
iTrader: (3)
 
Joined: Apr 2006
Posts: 6,524
Likes: 1
From: Western Burbs of Detroit
Default

Originally Posted by Sigforty
Looks good. I know you will have to readjust your shift points now. You should love the low end torque when driving around. I can personally say, that I often do not even down shift from 6th because the torque makes it so much easier to pass people.
Good to hear Mark !!!
Reply
Old Jan 7, 2009 | 12:32 PM
  #50  
98camaroLS1M6's Avatar
TECH Addict
iTrader: (35)
 
Joined: Dec 2005
Posts: 2,373
Likes: 0
From: Cherry Hill, NJ
Default

400rwtq at 2500 wow
Reply
Old Jan 7, 2009 | 12:54 PM
  #51  
allngn_c5's Avatar
Thread Starter
TECH Senior Member
iTrader: (3)
 
Joined: Apr 2006
Posts: 6,524
Likes: 1
From: Western Burbs of Detroit
Default

Originally Posted by 98camaroLS1M6
400rwtq at 2500 wow
400+ rwtq at 2500 should make it quite challanging to drive aggressively. Those poor Nitto DR's have no idea what is about to happen to them. LOL !
Reply
Old Jan 7, 2009 | 01:05 PM
  #52  
Spectre86's Avatar
TECH Fanatic
15 Year Member
Liked
Loved
Community Favorite
iTrader: (42)
 
Joined: Sep 2008
Posts: 1,166
Likes: 39
From: Oregon
Default

Originally Posted by Bobby @ LGM
Old vs New combo.
kick *** doug. look at that fat *** torque curve. reminds me of a black womans ***(no racist). i love it. lol your almost at 400lbs tq during crusing speeds.

That thing should be wicked fun. definately alot more street friendly/usuable power curve.
Reply
Old Jan 7, 2009 | 01:08 PM
  #53  
Sigforty's Avatar
11 Second Club
20 Year Member
 
Joined: Jun 2005
Posts: 1,537
Likes: 0
From: Was New Orleans, but swam to Baton Rouge
Default

Originally Posted by allngn_c5
400+ rwtq at 2500 should make it quite challanging to drive aggressively. Those poor Nitto DR's have no idea what is about to happen to them. LOL !

Lol, you are not lying. You will learn very quickly you can really only give the car up to about 1/2 throttle without spinning. My 383 would roast my nitto drag radials all the way into 4th if I tried anything over 1/2 throttle.
Reply
Old Jan 7, 2009 | 04:40 PM
  #54  
sublime1996525's Avatar
Staging Lane
iTrader: (2)
 
Joined: Nov 2006
Posts: 88
Likes: 3
From: Salt Lake City, UT
Smile

Awesome power man. I want a 402 so bad right now!!
Reply
Old Jan 7, 2009 | 08:34 PM
  #55  
allngn_c5's Avatar
Thread Starter
TECH Senior Member
iTrader: (3)
 
Joined: Apr 2006
Posts: 6,524
Likes: 1
From: Western Burbs of Detroit
Default

Glad to see that everyone approves
Reply
Old Jan 7, 2009 | 10:17 PM
  #56  
SilveradoSS500's Avatar
TECH Fanatic
 
Joined: Oct 2005
Posts: 1,698
Likes: 0
From: DFW
Default

I would say byebye nittos hello Toyo R888's or RA1's....
Reply
Old Jan 8, 2009 | 07:52 AM
  #57  
Photochop's Avatar
11 Second Club
15 Year Member
iTrader: (74)
 
Joined: Jun 2005
Posts: 2,742
Likes: 4
From: In the garage
Default

I think the new generation of MT radials would suit the car even better. Keep them in mind in oh...500 more street miles
Reply
Old Jan 8, 2009 | 08:20 AM
  #58  
allngn_c5's Avatar
Thread Starter
TECH Senior Member
iTrader: (3)
 
Joined: Apr 2006
Posts: 6,524
Likes: 1
From: Western Burbs of Detroit
Default

Yeah I hear ya fellas on the tire issue. I just have to hope that the Michelin PS2's will be alright for awhile. I am out of cash and need to recoup some of my money. I have the goodyear runflats with nearly new amount of tread on the fronts and enough on the rears to use for awhile. The Michelins are in much better out back, and up front are showing some ware. I thing the extra traction urged me to test her handling. LOL. Then of course I have 3rd set of rims with Nitto DRs on them. So when the run flats are dead I will start looking at some tires that will fit some stock c5 rims. Can 295s fit the rear, and 265's fit the front rims of stock c5 rims (non zo6 rims) ?? The rims that have the Michelins are wider and can easily accomodate 265's up front and 295's out back. The 305 DRs almost rub out back so I won't be able to go any wider, even though I could use it. LOL.
Reply
Old Jan 8, 2009 | 09:03 AM
  #59  
DA GOAT!'s Avatar
Staging Lane
iTrader: (1)
 
Joined: Oct 2007
Posts: 58
Likes: 0
Default

You can take those PS2's and throw them straight in the trash! They ain't gonna hook and they are outright dangerous on your beast!!! I bought some for mine and have seen the *** end of my car in front of me a couple of times!!! I took em off and put the MT Streets (radials) back on. Now I'm thinking about some Toyo R888's...
Reply
Old Jan 8, 2009 | 09:30 AM
  #60  
edcmat-l1's Avatar
Banned
iTrader: (10)
 
Joined: Jul 2006
Posts: 4,782
Likes: 4
From: Va Beach
Default

Mini tub that biotch!!!!
Reply



All times are GMT -5. The time now is 04:49 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 05:00:17


VIEW MORE
story-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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