New LS1 Owners - Newbie Tech Basic Technical Questions & Advice
Sponsored by:
Sponsored by:

Dead spot help

Thread Tools
 
Search this Thread
 
Old Feb 23, 2010 | 07:36 PM
  #1  
Wantin-somthin-more's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2010
Posts: 79
Likes: 0
From: billings, MO
Default Dead spot help

Hey guys i might have messed up. i did the free ram air mod with at home port and polish MAF* and i have a dead spot at 4000 to 5500 rpms. It may have been there before but i just noticed it a lil while ago. i was thinking air/fuel ratio or maybe a simple tune up would do it. Any body have ne ideas?

Last edited by Wantin-somthin-more; Feb 23, 2010 at 07:53 PM. Reason: wrong word
Reply
Old Feb 23, 2010 | 08:26 PM
  #2  
Juicy J's Avatar
TECH Enthusiast
iTrader: (5)
 
Joined: Oct 2007
Posts: 665
Likes: 2
From: Clear Lake (Houston)
Default

Honestly, you might just be getting used to the car. Did you notice this immediately after you polished the MAF? Are you throwing any codes? I guess you could have messed something up.

But if you are asking if something as simple as a ported TB, and polished MAF would constitute a tune, the short answer is no. The only reason your car should be running different is if you hurt something during the process of modifying the MAF/TB.
Reply
Old Feb 23, 2010 | 09:25 PM
  #3  
Wantin-somthin-more's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2010
Posts: 79
Likes: 0
From: billings, MO
Default

no codes no problem other then dead spot. I thought that i was lean and it was causeing a dead spot. did your car have a dead spot stock?
Reply
Old Feb 23, 2010 | 09:29 PM
  #4  
Z28_LT1's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Oct 2008
Posts: 691
Likes: 0
From: Fresno, CA
Default

define "dead spot". Do you mean you're at WOT and then when you hit the top it feels like you let your foot completely off the gas?
Reply
Old Feb 23, 2010 | 09:39 PM
  #5  
Searching4Sierra's Avatar
TECH Regular
iTrader: (27)
 
Joined: May 2005
Posts: 454
Likes: 0
From: Los Angeles
Default

try some MAF cleaner
Reply
Old Feb 23, 2010 | 09:47 PM
  #6  
Wantin-somthin-more's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2010
Posts: 79
Likes: 0
From: billings, MO
Default

the dead spot im refering to is im at wide open throttle and it feels like i let go of the gas about half way then kicks back from 5500 to red line (which isnt very much) well i bought a 100 shot NOS kit and i dont wanna run it until i get it fixed if it is too lean it could cause problems. just dont wanna get ahead of myself and mess something up...
Reply
Old Feb 23, 2010 | 09:48 PM
  #7  
Wantin-somthin-more's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2010
Posts: 79
Likes: 0
From: billings, MO
Default

Originally Posted by Searching4Sierra
try some MAF cleaner
MAF cleaner? oriellys sell that?
Reply
Old Feb 23, 2010 | 09:50 PM
  #8  
Searching4Sierra's Avatar
TECH Regular
iTrader: (27)
 
Joined: May 2005
Posts: 454
Likes: 0
From: Los Angeles
Default

yeah you should be able to find it at those places. CRC mass air flow sensor cleaner. Its a cheap place to start instead of doing a whole tune-up
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 Feb 23, 2010 | 09:52 PM
  #9  
Searching4Sierra's Avatar
TECH Regular
iTrader: (27)
 
Joined: May 2005
Posts: 454
Likes: 0
From: Los Angeles
Default

my car had a dead spot, i pulled the MAF and the actual sensors on it were completely black. after i cleaned it the car ran 100 times better
Reply
Old Feb 23, 2010 | 09:53 PM
  #10  
Wantin-somthin-more's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2010
Posts: 79
Likes: 0
From: billings, MO
Default

WOW when i port and polished the MAF i noticed that the resister looking things were a little bit black thanks alot.
Reply
Old Feb 23, 2010 | 09:53 PM
  #11  
Z28_LT1's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Oct 2008
Posts: 691
Likes: 0
From: Fresno, CA
Default

Originally Posted by Wantin-somthin-more
the dead spot im refering to is im at wide open throttle and it feels like i let go of the gas about half way then kicks back from 5500 to red line (which isnt very much) well i bought a 100 shot NOS kit and i dont wanna run it until i get it fixed if it is too lean it could cause problems. just dont wanna get ahead of myself and mess something up...
my lt1 was doing the same thing when I had it. it was running hella lean up top. My advice to you would be not to run it that hard untill you figure out what is wrong. Changing a fuel filter will help, it helped me at least. U might want to look into that....
Reply
Old Feb 23, 2010 | 09:56 PM
  #12  
Wantin-somthin-more's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2010
Posts: 79
Likes: 0
From: billings, MO
Default

ya well i have a fuel filter plugs talor 10.4 wires and nos to put on this weekend but working 60hrs a week and going to school full time i only get a limited time to work on the car just trying to get the best advice what to do.
Reply
Old Feb 23, 2010 | 10:04 PM
  #13  
Searching4Sierra's Avatar
TECH Regular
iTrader: (27)
 
Joined: May 2005
Posts: 454
Likes: 0
From: Los Angeles
Default

Originally Posted by Wantin-somthin-more
WOW when i port and polished the MAF i noticed that the resister looking things were a little bit black thanks alot.
yeah just be careful when you clean it, use the cleaner and a q-tip. dont touch the wires with your hands
Reply
Old Feb 23, 2010 | 10:12 PM
  #14  
Wantin-somthin-more's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2010
Posts: 79
Likes: 0
From: billings, MO
Default

Hey guys thanks alot for the info you guys make this cite great. ill try the cleaner.
Reply
Old Feb 23, 2010 | 10:27 PM
  #15  
Juicy J's Avatar
TECH Enthusiast
iTrader: (5)
 
Joined: Oct 2007
Posts: 665
Likes: 2
From: Clear Lake (Houston)
Default

I just assumed that if you ported your MAF, you would have saw all the sut (spelling?). You can buy the MAF cleaner from any automotive store. You just spray it on, and let it evaporate. You could also use q-tips to assure everything is clean. Don't apply pressure, but gently slide the q tip across the wires like mentioned above.

If the dead spot is super noticeable, then you might really be having problems How many miles are on the car, and have you done a tune up? The fuel filter would be a good idea to look at, as mentioned above. You might check your fuel pressure. If you can afford a wideband O2, it would be a good investment. I think it's an important item to have when running N2O.

If you have a dyno available in your area, it might be a good idea to throw the car on it. They should have a wideband to monitor your car on the dyno. A dyno can be a great diagnostic tool to figure out if you are actually having a problem, and see how severe your problem might be.

I would definitely recommend staying away from the nitrous until you get everything figured out. Running a power adder on an already handicapped car is just asking for trouble.

Good luck, and let us know if you figure anything out. If you find anything else out that might help us diagnose your problem, be sure to post it up.
Reply
Old Feb 26, 2010 | 08:39 AM
  #16  
Wantin-somthin-more's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2010
Posts: 79
Likes: 0
From: billings, MO
Default

Update. Well i used the cleaner and it helped but theb i changed the fuel filter. It was so clogged up little chunks were coming out and i couldn't even pass ne air through it. Much better thanks for the help.
Reply
Old Feb 26, 2010 | 11:53 AM
  #17  
Searching4Sierra's Avatar
TECH Regular
iTrader: (27)
 
Joined: May 2005
Posts: 454
Likes: 0
From: Los Angeles
Default

glad to hear youre back on the road
Reply
Old Feb 26, 2010 | 11:59 AM
  #18  
01ssreda4's Avatar
TECH Senior Member
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (96)
 
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
Default

good job
Reply
Old Feb 27, 2010 | 11:44 PM
  #19  
Wantin-somthin-more's Avatar
Thread Starter
Staging Lane
 
Joined: Jan 2010
Posts: 79
Likes: 0
From: billings, MO
Default

update man if you guys havent tried the taylor 10.4 wires you guys need to try a set. throttle response is a lot better and a little gain in acceleration.
Reply
Old Feb 28, 2010 | 12:09 AM
  #20  
Searching4Sierra's Avatar
TECH Regular
iTrader: (27)
 
Joined: May 2005
Posts: 454
Likes: 0
From: Los Angeles
Default

yeah i think im gonna wait till i do headers to change my plugs and wires
Reply



All times are GMT -5. The time now is 06:50 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