Generation IV Internal Engine 2005-2014 LS2 | LS3 | LS7 | L92 | LS9

Got my LS3 427 today!!

Thread Tools
 
Search this Thread
 
Old Sep 3, 2011 | 10:17 PM
  #241  
TwoValveKid's Avatar
Staging Lane
15 Year Member
iTrader: (1)
 
Joined: Dec 2008
Posts: 56
Likes: 0
From: Suffolk, VA
Default

I ended up going with Mast medium bore ls3 heads

But the fast 102mm LS3 doesnt fit in my C5
Reply
Old Sep 4, 2011 | 11:46 PM
  #242  
ReeknHavic's Avatar
Teching In
 
Joined: Aug 2006
Posts: 10
Likes: 0
From: Olathe, Kansas
Default

I thought the LS3 fit in the C5, no problem. What doesn't fit?
Reply
Old Sep 5, 2011 | 12:27 AM
  #243  
Jimmy P's Avatar
TECH Fanatic
iTrader: (177)
 
Joined: Jan 2004
Posts: 1,933
Likes: 1
From: USA
Default

I thought the LS3 fit in the C5, no problem. What doesn't fit?
pretty sure he means the FAST 102mm intake
Reply
Old Sep 5, 2011 | 12:59 AM
  #244  
The highlander's Avatar
Staging Lane
 
Joined: Jan 2004
Posts: 93
Likes: 0
Default

Originally Posted by CETAWS6
BTW, these numbers i posted up could of been higher even at 24 degrees but on two pulls the tires broke loose on the rollers. I had it on video but I accidently recorded over it. I have the sheet but it's at home right now and I'm in class. On the sheet, you can see that the hp/tq lopped off cause the tires broke loose and the car was strapped on tight as it supposed to be. Like I said there's more there. I just gotta get on the dyno again and record results.
414 on a mustang dyno is around 467whp on a dynojet.

Extremely low.

I don't think that 24º vs 27º is going to give you 100whp which should be what you should get.

Now, on the other hand... Can you post the tune? I bet the car is NOT running at 24º sorry...

Then again. I installed a 440 from scoggin dickey.........
Reply
Old Sep 5, 2011 | 01:44 AM
  #245  
CETAWS6's Avatar
Thread Starter
TECH Regular
iTrader: (2)
 
Joined: Jun 2008
Posts: 463
Likes: 1
Default

To the highlander...well point well taken. I got the car retuned. Last time on dyno, it layed 509/480. I was told the original tune from before was garbage. So the problem has been solved.
Reply
Old Sep 5, 2011 | 05:25 AM
  #246  
WKMCD's Avatar
TECH Junkie
iTrader: (2)
 
Joined: Mar 2005
Posts: 3,416
Likes: 2
From: Northern VA
Default

Originally Posted by TwoValveKid
I ended up going with Mast medium bore ls3 heads

But the fast 102mm LS3 doesnt fit in my C5
If you're talking about the clearance up against the cowl the solution is pretty simple. There is a small pin that secures the wiper tray. Remove that. If you still need more, a couple of thick washers between the cradle and the frame will do the trick.
Reply
Old Sep 5, 2011 | 08:02 AM
  #247  
1994z's Avatar
TECH Regular
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (48)
 
Joined: Apr 2006
Posts: 442
Likes: 2
From: empire,alabama
Default

Originally Posted by CETAWS6
To the highlander...well point well taken. I got the car retuned. Last time on dyno, it layed 509/480. I was told the original tune from before was garbage. So the problem has been solved.
ceta are talking about the first tune or the one from v.r. reason i ask is i see you have one from frost.
Reply
Old Sep 5, 2011 | 08:02 AM
  #248  
TwoValveKid's Avatar
Staging Lane
15 Year Member
iTrader: (1)
 
Joined: Dec 2008
Posts: 56
Likes: 0
From: Suffolk, VA
Default

Not with Mast heads. lol.

It was hard fouling on the wiper support bracket about 3/4 of an inch before the car met the cradle.
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 Sep 5, 2011 | 08:31 AM
  #249  
CETAWS6's Avatar
Thread Starter
TECH Regular
iTrader: (2)
 
Joined: Jun 2008
Posts: 463
Likes: 1
Default

To 1994 Z...before VR, I took it this shop in Athens called MV Performance. Though they say they tune GM, Ford, and Dodge, they were actually a mustang shop. They tuned my car 1st. So there tuning was garbage. That is when I took it to VR. They dynoed the car and tuned it. Though they made it driveable, it was surging and bucking and cuts off. That's when I got with Frost so he can help with the tuning issue.
Reply
Old Sep 5, 2011 | 09:12 AM
  #250  
1994z's Avatar
TECH Regular
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (48)
 
Joined: Apr 2006
Posts: 442
Likes: 2
From: empire,alabama
Default

okay, same here took it to a guy in hueytown,ala. everyone said he was the best around. well after he took about 5 hours of trying to get it tuned he let it slip that he was more familar with fords. then he called someone to help him try to to get my car running better. said this guy was better with ls motors. i told my nephew right then i screwed up. i dont think there is anyone around here that really knows ls motors. dont get me wrong to me it runs better than i thought a cammed and intake 346 should run. 7.62 in the 1/8 and 12.05 in the 1/4 in a 3400 lb. firebird. it seams to run out of steam around 1000 ft. mark just want pull no more. after the holley ls fest want to find someone that knows ls motors, to see if they can get anymore out of her.
Reply
Old Nov 9, 2011 | 05:34 PM
  #251  
CETAWS6's Avatar
Thread Starter
TECH Regular
iTrader: (2)
 
Joined: Jun 2008
Posts: 463
Likes: 1
Default

https://ls1tech.com/forums/dynamomet...-427-ceta.html
Reply




All times are GMT -5. The time now is 08:23 PM.

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