PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

mail order tune

Thread Tools
 
Search this Thread
 
Old Jun 19, 2009 | 08:44 PM
  #1  
Chris'stransam's Avatar
Thread Starter
TECH Enthusiast
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (7)
 
Joined: Oct 2007
Posts: 604
Likes: 1
From: Gainesville FL
Default mail order tune

I have a 99 TA m6, I got a mail order tune. I went to the track and my times are slower. WTF by .300 and dropped 3mph in the quarter.Then i put a 75 shot to it, and now I running the same time with nitrous as i was na. WTF !!!! Tire size maybe I went from 275-45-17 to a 295-30-18. My new tuner who i am going to see tomorrow to re tune it said the car had 29 degrees of timing. So i think the car is seeing the timing and the cylinder psi and dropping the timing back.


The ecu that has the tune in itwas throwing the knock codes so I took out, and stuck the stock ecu in it. Now the the car dosent throw the code , but it dose with the bottle. SO WHATS UP WITH IT HELP ME
Reply
Old Jun 19, 2009 | 08:47 PM
  #2  
Frost's Avatar
FormerVendor
iTrader: (45)
 
Joined: Jul 2005
Posts: 5,913
Likes: 2
From: Richmond VA
Default

29 is aggressively high even for a 99 in most cases, especially on the jug. Knock slows you down; it hurts power.

Additionally, if you have a KS code you are losing 4 degrees at WOT as a result of it being set.
Reply
Old Jun 19, 2009 | 08:54 PM
  #3  
Chris'stransam's Avatar
Thread Starter
TECH Enthusiast
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (7)
 
Joined: Oct 2007
Posts: 604
Likes: 1
From: Gainesville FL
Default

How much power is 4 degrees in HP.
Reply
Old Jun 19, 2009 | 08:56 PM
  #4  
Chris'stransam's Avatar
Thread Starter
TECH Enthusiast
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (7)
 
Joined: Oct 2007
Posts: 604
Likes: 1
From: Gainesville FL
Default

Is this my problem ? Is this why my car is getting slower every time i get parts for it?
Reply
Old Jun 20, 2009 | 05:51 AM
  #5  
brianfromhawaii's Avatar
11 Second Club
iTrader: (3)
 
Joined: Oct 2007
Posts: 857
Likes: 0
From: Hawaii
Default

do you have headers? maybe with headers i can see 29...
Reply
Old Jun 23, 2009 | 08:16 PM
  #6  
AFASTYZFR1's Avatar
10 Second Club
15 Year Member
iTrader: (55)
 
Joined: Feb 2007
Posts: 1,746
Likes: 2
From: Florida
Default

Originally Posted by Chris'stransam
Is this my problem ? Is this why my car is getting slower every time i get parts for it?
Yes.....the tune is your problem.........contact Frost and get a good tune
Reply
Old Jun 23, 2009 | 09:50 PM
  #7  
LS1-450's Avatar
TECH Junkie
iTrader: (33)
 
Joined: Aug 2005
Posts: 3,783
Likes: 9
Default

Originally Posted by Chris'stransam
My new tuner who i am going to see tomorrow to re tune it said the car had 29 degrees of timing. So i think the car is seeing the timing and the cylinder psi and dropping the timing back.

The ecu that has the tune in itwas throwing the knock codes so I took out, and stuck the stock ecu in it. Now the the car dosent throw the code , but it dose with the bottle. SO WHATS UP WITH IT HELP ME

Even 29 can be 26 or 25 depending on the ECT, IAT spark reduction tables. Regardless, 29 is higher than most of us are able to run. Further, throwing spray @ an engine that's already pulling timing due to knock is not a good idea.

The stock ecu (PCM) has a less aggressive timing table, which is why there is no knock code. It is too high for the spray though.

+1 on contacting FROST.
Reply
Old Jun 24, 2009 | 05:53 PM
  #8  
Matt@SNLPerformance's Avatar
FormerVendor
iTrader: (1)
 
Joined: Jun 2009
Posts: 282
Likes: 0
From: DFW, Texas
Default

Are you able to post the tune so we can take a look at it and steer you in the right direction?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

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

 Pouria Savadkouei
story-2

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

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

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

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 09:43 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE