C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Diablo Predator Programer vs. Dyno Tuning by changing computer program.

Thread Tools
 
Search this Thread
 
Old Apr 5, 2008 | 09:59 PM
  #21  
LSCHLEM's Avatar
LSCHLEM
Melting Slicks
15 Year Member
 
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
Default Predatotr Tunes Vs Pro Tuners.

Originally Posted by Danny318
what was the deal with this tune and you car? Can you tell me some of the symptoms of the tune being junk? I am just curious, you know? Also what mods did you have on your car at time?
Canned tunes are base tunes. They are good for someone starting out. You select a 93 octane tune because you have headers & CAI. You notice an improvement, you think you can do a little better. When you modify parameters now you have just made a custome tune. The car runs well. Then you go to the dyno and surprise your numbers were not what you thaught they should be. I thaught 390, nope 363 was the number. The tuner then at that point asks you to restore your stock tune. I say can you do better give me a number. He says just you wait and see. He gets 387 and your thrilled. The heart of the matter the tuner w HP or EFI has many more tables to work with as opposed to the predator which is really just a wot tune. There is part throttle,
drivability, gas milage as well as wot w no knocks. thats my experience
which eventually got me numbers and performance and now im very satisfied at 412 RWHP. I still have the predator but can no longer tune with it. Its still a useful tool to scan and do logging.
Reply
Old Apr 5, 2008 | 10:56 PM
  #22  
Danny318's Avatar
Danny318
Racer
10 Year Member
 
Joined: May 2007
Posts: 496
Likes: 0
From: Townsend MA
Default

interesting.
Reply
Old Apr 6, 2008 | 07:44 PM
  #23  
NIGHTSTALKER's Avatar
NIGHTSTALKER
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2007
Posts: 1,757
Likes: 2
From: Middletown DE
Default

Originally Posted by LSCHLEM
Canned tunes are base tunes. They are good for someone starting out. You select a 93 octane tune because you have headers & CAI. You notice an improvement, you think you can do a little better. When you modify parameters now you have just made a custome tune. The car runs well. Then you go to the dyno and surprise your numbers were not what you thaught they should be. I thaught 390, nope 363 was the number. The tuner then at that point asks you to restore your stock tune. I say can you do better give me a number. He says just you wait and see. He gets 387 and your thrilled. The heart of the matter the tuner w HP or EFI has many more tables to work with as opposed to the predator which is really just a wot tune. There is part throttle,
drivability, gas milage as well as wot w no knocks. thats my experience
which eventually got me numbers and performance and now im very satisfied at 412 RWHP. I still have the predator but can no longer tune with it. Its still a useful tool to scan and do logging.
...The tunes are not optimized for every car with the same mods....Danny318, to answer your question, the deal was with the tune, not the car. My only mods were LG headers, Stingers and a Vararam. I was lean at cruise and pig rich at WOT, and the MAF values were all over the place. My tuner couldn't get over how off it was for my car.....It wasn't a junk tune, maybe the word I used was a little harsh, but compared to having a good cutom tune done in comparison it is....I'll have dyno numbers with the Predator tune vs. a custom HP Tuners tune by next weekend.
Reply
Old Apr 6, 2008 | 07:45 PM
  #24  
Danny318's Avatar
Danny318
Racer
10 Year Member
 
Joined: May 2007
Posts: 496
Likes: 0
From: Townsend MA
Default

so isnt the stock tune a 'canned' tune since its the same for every car, yet every car varies?
Reply
Old Apr 6, 2008 | 07:47 PM
  #25  
NIGHTSTALKER's Avatar
NIGHTSTALKER
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2007
Posts: 1,757
Likes: 2
From: Middletown DE
Default

Originally Posted by Danny318
so isnt the stock tune a 'canned' tune since its the same for every car, yet every car varies?
Thats half the reason why one car will dyno differently from another.
Reply
Old Apr 6, 2008 | 07:49 PM
  #26  
Danny318's Avatar
Danny318
Racer
10 Year Member
 
Joined: May 2007
Posts: 496
Likes: 0
From: Townsend MA
Default

Originally Posted by NIGHTSTALKER
...The tunes are not optimized for every car with the same mods....Danny318, to answer your question, the deal was with the tune, not the car. My only mods were LG headers, Stingers and a Vararam. I was lean at cruise and pig rich at WOT, and the MAF values were all over the place. My tuner couldn't get over how off it was for my car.....It wasn't a junk tune, maybe the word I used was a little harsh, but compared to having a good cutom tune done in comparison it is....I'll have dyno numbers with the Predator tune vs. a custom HP Tuners tune by next weekend.
do you know how rich? because I noticed one of my tunes w/ the predator is pretty rich..12:1 ish but yeti t made moree power there than it did with the leaner was. I thought the consensus was these cars kind of like to be on the richer side?
Reply
Old Apr 6, 2008 | 07:55 PM
  #27  
NIGHTSTALKER's Avatar
NIGHTSTALKER
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2007
Posts: 1,757
Likes: 2
From: Middletown DE
Default

Originally Posted by Danny318
do you know how rich? because I noticed one of my tunes w/ the predator is pretty rich..12:1 ish but yeti t made moree power there than it did with the leaner was. I thought the consensus was these cars kind of like to be on the richer side?
I'll be able to show you as soon as I get my car back on Saturday. My tuner is going to dyno the car with the predator tune in place, then again with his modified tune in place to show the differences......Then again after my new mods are done with with a new custom tune in place.
Don't get me wrong.....The predator is a nice tool and a great tuning starting point, but as LSCHLEM stated with software like HP Tuners more changes can be made therefore optimizing parameters that can't be reached with the Predator.
Reply
Old Apr 6, 2008 | 08:03 PM
  #28  
Danny318's Avatar
Danny318
Racer
10 Year Member
 
Joined: May 2007
Posts: 496
Likes: 0
From: Townsend MA
Default

Originally Posted by NIGHTSTALKER
I'll be able to show you as soon as I get my car back on Saturday. My tuner is going to dyno the car with the predator tune in place, then again with his modified tune in place to show the differences......Then again after my new mods are done with with a new custom tune in place.
Don't get me wrong.....The predator is a nice tool and a great tuning starting point, but as LSCHLEM stated with software like HP Tuners more changes can be made therefore optimizing parameters that can't be reached with the Predator.
Oh for sure, I know HP tuners is wayyyyyy more useful than predator.

I wouldnt mind having at it, but its a lot of money for me so ima just wait.

Anyways, that will be real sweet to see the two graphs overlayed!
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-1

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-2

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-3

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-4

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-5

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-6

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-7

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-8

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-9

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
Old Apr 6, 2008 | 08:10 PM
  #29  
NIGHTSTALKER's Avatar
NIGHTSTALKER
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2007
Posts: 1,757
Likes: 2
From: Middletown DE
Default

Originally Posted by Danny318
Oh for sure, I know HP tuners is wayyyyyy more useful than predator.

I wouldnt mind having at it, but its a lot of money for me so ima just wait.

Anyways, that will be real sweet to see the two graphs overlayed!
Yeah, I'm looking forward to seeing the differences myself. To tell you the truth, just like LSCHLEM also said, I actually thought that with the Predator tune in place, my car was running pretty damn good. It felt strong, it wasn't until Ed @ B&P hooked my car up to the scanner at the track and data logged some highway cruising that we were able to see that there was room for improvement.

Here's some pics of Ed at work at the track:





Reply
Old Apr 6, 2008 | 08:31 PM
  #30  
Danny318's Avatar
Danny318
Racer
10 Year Member
 
Joined: May 2007
Posts: 496
Likes: 0
From: Townsend MA
Default

nice
Reply
Old Apr 6, 2008 | 08:32 PM
  #31  
Danny318's Avatar
Danny318
Racer
10 Year Member
 
Joined: May 2007
Posts: 496
Likes: 0
From: Townsend MA
Default

i love those taillight covers btw, thing looks mean.
Reply
Old Apr 6, 2008 | 09:25 PM
  #32  
NIGHTSTALKER's Avatar
NIGHTSTALKER
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2007
Posts: 1,757
Likes: 2
From: Middletown DE
Default

Originally Posted by Danny318
i love those taillight covers btw, thing looks mean.
Thanks man.......BTW, I just talked to my tuner and he says he'll have some graphs for me by tomorrow evening of the canned header tune vs. his custom tune, so I'll post them up so we can see the differences.
Reply
Old Apr 6, 2008 | 09:30 PM
  #33  
NIGHTSTALKER's Avatar
NIGHTSTALKER
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2007
Posts: 1,757
Likes: 2
From: Middletown DE
Default

Originally Posted by bad427
Mike's car was in the 11.8 range @ WOT with the predator tune. Now he is 12.8-13.0 dead on. I doubt running that rich did make more power for you. It all depends on what type of dyno you were on, what vehicle temps, what the weather conditions were at the times of the different runs so many variable, I can only speak for myself on keeping those things consistent to produce consistent runs. Mike's graphs will be done tomorrow and you can see the difference between the two tunes. Every car likes something different, "canned tunes" only get the cars in the ballpark, but there is still a lot to be gained. This is true with the factory or an off the shelf tune from a handheld programmer. Factory isn't worried about the performance aspect, they worry about fuel mileage and durability. They get the power from the mechanical parts and deal with the vehicle to vehicle losses from their tunes.

Ed
Thanks Ed. You beat me to it

Last edited by NIGHTSTALKER; Apr 6, 2008 at 09:33 PM.
Reply
Old Apr 7, 2008 | 09:39 AM
  #34  
LSCHLEM's Avatar
LSCHLEM
Melting Slicks
15 Year Member
 
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
Default Coat hanger in exhaust pipe ?

Originally Posted by NIGHTSTALKER
Thanks man.......BTW, I just talked to my tuner and he says he'll have some graphs for me by tomorrow evening of the canned header tune vs. his custom tune, so I'll post them up so we can see the differences.
Hey guy some pretty nice pics there. BLACK IS BEAUTIFUL. I see the coat hanger in the exhaust pipe. Your tuner is doing his thing . Wideband is most accurate for a/f measurement. Will be interesting to see the animal awakening when MODS + Tune graphs are posted. I hope
you are as astonished as I was. Good Luck, leon
Reply
Old Apr 7, 2008 | 05:35 PM
  #35  
NIGHTSTALKER's Avatar
NIGHTSTALKER
Drifting
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jun 2007
Posts: 1,757
Likes: 2
From: Middletown DE
Default

Originally Posted by LSCHLEM
Hey guy some pretty nice pics there. BLACK IS BEAUTIFUL. I see the coat hanger in the exhaust pipe. Your tuner is doing his thing . Wideband is most accurate for a/f measurement. Will be interesting to see the animal awakening when MODS + Tune graphs are posted. I hope
you are as astonished as I was. Good Luck, leon
Thanks Leon
Reply
Old Apr 7, 2008 | 07:11 PM
  #36  
SANJU100's Avatar
SANJU100
Thread Starter
Instructor
 
Joined: Mar 2008
Posts: 136
Likes: 0
From: OCEANSIDE CA
Default

MAN, YOU GUYS ARE AWESOME! so much information, i am going crazy over here. this web-site is the best.
i have made up my mind and i will be going to a shop to Dyno-tune my car with predator. i am going there this saturday and i cannot wait to see how much difference the predator can really make.
like i said i already have Vavaram intake, Magnaflow exhaust, X pipe, Throttle Body spacer, and 90m mass air flow sencer.
and i feel really weired about my car getting hot up to 220 degree so i will have them tune it so the fan kicks in at 200 degrees!!!! cannot wait!
Reply
Old Apr 7, 2008 | 08:49 PM
  #37  
LSCHLEM's Avatar
LSCHLEM
Melting Slicks
15 Year Member
 
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
Default AN interesting thread.

Originally Posted by SANJU100
MAN, YOU GUYS ARE AWESOME! so much information, i am going crazy over here. this web-site is the best.
i have made up my mind and i will be going to a shop to Dyno-tune my car with predator. i am going there this saturday and i cannot wait to see how much difference the predator can really make.
like i said i already have Vavaram intake, Magnaflow exhaust, X pipe, Throttle Body spacer, and 90m mass air flow sencer.
and i feel really weired about my car getting hot up to 220 degree so i will have them tune it so the fan kicks in at 200 degrees!!!! cannot wait!
Hey man, you posted a stimulating and interesting thread. We responded with our experiences. No better way to learn is from the
the actual hands on experiences of others.
On the predator you may want to install a 160 stat and set the fan settings. your car will run 180 ish which would be a good starting temp for a first dyno run. with cooler temps that would enhance your ability
to get optimal a/f & timing values. good luck with your tune Leon
Reply

Get notified of new replies

To Diablo Predator Programer vs. Dyno Tuning by changing computer program.

Old Apr 7, 2008 | 09:27 PM
  #38  
huckleberrydude's Avatar
huckleberrydude
Pro
 
Joined: Oct 2003
Posts: 639
Likes: 0
From: springfield missouri
Default



Use something with the widest available parameters to work with.
HP would be a good example.....its like buying crappy gas for a $50,000 car. It just doesn't make sense. Your tuner shouldn't charge to go back to stock.
Reply
Old Apr 7, 2008 | 10:11 PM
  #39  
SANJU100's Avatar
SANJU100
Thread Starter
Instructor
 
Joined: Mar 2008
Posts: 136
Likes: 0
From: OCEANSIDE CA
Default

i am hearing a lot about 160 thermostat. is it all talk or it actually works? different dyno shops gave me different advice. i wanna know from the experts here at this web-site.
Reply
Old Apr 7, 2008 | 10:25 PM
  #40  
LSCHLEM's Avatar
LSCHLEM
Melting Slicks
15 Year Member
 
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
Default

Originally Posted by SANJU100
i am hearing a lot about 160 thermostat. is it all talk or it actually works? different dyno shops gave me different advice. i wanna know from the experts here at this web-site.
BUMP
Reply



All times are GMT -4. The time now is 11:17 AM.

story-0
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-1
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-2
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-3
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-4
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-5
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-6
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-7
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-8
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-9
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE