LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

New times with scorpion rockers and tune

Thread Tools
 
Search this Thread
 
Old 10-09-2004, 07:26 PM
  #1  
Registered User
Thread Starter
 
Kreinmc's Avatar
 
Join Date: Feb 2001
Location: Mesa, Az
Posts: 622
New times with scorpion rockers and tune

Well I am kinda disappointed in the way the car ran with the tune, but I still ran a new best. I had the pcm tuned by pcmforless really to have the revlimiter bumped up so I could shift the car higher in the first few gears, but I let him put a tune in it to get whatever power he could out of it. Car runs stronger in the first 1/8 of the track but dies off on the top end. I had him tune the car for lt's as well so maybe the car is just running lean up top until I get them installed? Only ran a few times since my clutch is on the way out, but here is my best time.

r/t .000 :P first ever perfect light
60' 2.253
1/8 9.011
mph 83.33
1/4 13.78
mph 103.64

previous best was
60' 2.24
1/8 ?
mph 81.5
1/4 13.85
mph 103.6

Ran the same mph even with a 2 mph increase in the 1/8. I am pretty sure I can attribute the 1/8 mph increase to shifting the first few gears much higher and not from added power.
Kreinmc is offline  
Old 10-09-2004, 10:04 PM
  #2  
Registered User
 
"White Knight"'s Avatar
 
Join Date: Nov 2002
Location: Michigan
Posts: 1,544
Re: New times with scorpion rockers and tune

I didn't see any gain with a Pcm4less tune either. I'm not saying it didn't do anything, but i didn't see a gain. I have other problems more than likely. Dyno would be my only way to tell if i gained, cause i think my tranny is slipping.
"White Knight" is offline  
Old 10-10-2004, 12:04 AM
  #3  
Registered User
 
fireman's Avatar
 
Join Date: Jul 2000
Location: Phoenix AZ
Posts: 815
Re: New times with scorpion rockers and tune

My PCMFL tune was way lean, you probably need to richen it up a bit.
fireman is offline  
Old 10-10-2004, 12:13 AM
  #4  
Registered User
 
slimdawson's Avatar
 
Join Date: Feb 2001
Location: New Bern, NC USA
Posts: 1,234
Re: New times with scorpion rockers and tune

You may be running into false knock with the rrs.

Also, if he really did tune for lts, it is more than likely running rich. He would have richened the tune for the extra scavenging the lts provide, but since they aren't on there yet, the engine can't take advantage.
slimdawson is offline  
Old 10-10-2004, 09:11 PM
  #5  
Registered User
Thread Starter
 
Kreinmc's Avatar
 
Join Date: Feb 2001
Location: Mesa, Az
Posts: 622
Re: New times with scorpion rockers and tune

Originally Posted by White Knight
I didn't see any gain with a Pcm4less tune either. I'm not saying it didn't do anything, but i didn't see a gain. I have other problems more than likely. Dyno would be my only way to tell if i gained, cause i think my tranny is slipping.
Yeah, I would still think I would have gained a few mph in the 1/4 since I gained 2 mph in the 1/8. Maybe its just that the tune was made for lt's and I don't have them yet so I am a tad down on power. Or maybe the clutch isn't holding up very good in 3rd and 4th. Oh well lt's and a clutch are on the way!
Kreinmc is offline  
Old 10-10-2004, 09:18 PM
  #6  
Registered User
 
simple's Avatar
 
Join Date: Apr 2001
Location: Springfield, IL
Posts: 2,195
Re: New times with scorpion rockers and tune

"you need traction, then a 12bolt" times will drop quite a bit

and you cant really compare old times to new without factoring in weather and track conditions
simple is offline  
Old 10-10-2004, 09:22 PM
  #7  
Registered User
Thread Starter
 
Kreinmc's Avatar
 
Join Date: Feb 2001
Location: Mesa, Az
Posts: 622
Re: New times with scorpion rockers and tune

Originally Posted by simple
"you need traction, then a 12bolt" times will drop quite a bit

and you cant really compare old times to new without factoring in weather and track conditions
Yeah times will drop a lot very soon! Track conditions were pretty much exactly the same though.
Kreinmc is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HectorM52
Parts For Sale
26
07-30-2017 11:46 AM
oldschool
Parts For Sale
16
02-09-2016 09:21 PM
Jazsun
Cars For Sale
0
12-29-2014 12:14 PM
thenewkid
New Member Introduction
5
11-27-2014 09:41 AM



Quick Reply: New times with scorpion rockers and tune



All times are GMT -5. The time now is 02:46 AM.