Stock Internal LS1 dyno numbers
12-08-2007 | 08:27 AM
#21
Thanks man! I already have the 90/90, the only thing I changed was from the 75mm lid & MAF to the 85mm lid & MAF. I am not going to put valve springs or any other valvetrain mods in it until I break the record, and then I will throw a cam in. Some people think it is okay to replace them, but others are bitching that it isn't SI any more.
12-08-2007 | 08:38 AM
#23
cool. The last sunday US41 was open, Pat from GLM was testing one of my cams in his car, and ended up breaking the trans, or really hurting it. Car picked up a 3mph, and 3tenths so far, untill trans took it's ****. Looks like FLT transmission here we come.
yeah, i will come over an introduce myself next year, when i come down with Pat.
yeah, i will come over an introduce myself next year, when i come down with Pat. 
12-08-2007 | 09:39 PM
#26
Launching!
Joined: Nov 2007
Posts: 242
Likes: 0
From: Guam
I'm actually taking my car to the same shop probably the 23rd. how is it there? quality work? how is the tuner?
After running my 11.4X passes a few weeks ago, my crew chief and I came to the conclusion that my car was losing a lot up top. It would come out of the hole with the wheels in the air, cutting 1.47 60fts, but it would only run 11.42 @ 116.24, and it felt like it wasn't pulling on the big end. This combined with a few other small problems left me pretty much done for the '07 season. I had the chance to bring it over to Straightline Performance to see if we could find out the problems with the tune and see if we could get more out of it. Boy were we suprised...
Baseline numbers as the car sat were 310hp/320tq and a FAT AS HELL A:F ratio. The driver side o2 had been dumping fuel to try and correct it, but that seemed to be making it worse. (I have been battling o2 problems ever since I bought the car) So we decided to get rid of the o2s all together and just run it in closed loop. While I was there I decided to throw on my Fast Toys 85mm lid and 85mm '04 Z06 MAF I had sitting in the trunk to see if we would gain anything over the Wisper lid and stock de-screen MAF. After updating the MAF table and a few runs to tweak the timing and fuel tables, it made 339.6hp @ 6128 & 348.1tq @ 3830. These were numbers on a Mustang Chassis dyno. And they say stock internal cars fall of at 5900... With my new found 30hp & 28tq, combined with the 150 lbs more that is coming out of the car, I will be going for the Stock Internal Record come March
Misc info:
The car loves 26 degrees of timing the most, instead of the 28 that was in there.
The Yank PT4400 converter flashes to 4800-5000
Shift extension is 700 rpms (6300-5700)
A:F was fairly steady around 13:1
Here are the scans
Baseline numbers as the car sat were 310hp/320tq and a FAT AS HELL A:F ratio. The driver side o2 had been dumping fuel to try and correct it, but that seemed to be making it worse. (I have been battling o2 problems ever since I bought the car) So we decided to get rid of the o2s all together and just run it in closed loop. While I was there I decided to throw on my Fast Toys 85mm lid and 85mm '04 Z06 MAF I had sitting in the trunk to see if we would gain anything over the Wisper lid and stock de-screen MAF. After updating the MAF table and a few runs to tweak the timing and fuel tables, it made 339.6hp @ 6128 & 348.1tq @ 3830. These were numbers on a Mustang Chassis dyno. And they say stock internal cars fall of at 5900... With my new found 30hp & 28tq, combined with the 150 lbs more that is coming out of the car, I will be going for the Stock Internal Record come March
Misc info:
The car loves 26 degrees of timing the most, instead of the 28 that was in there.
The Yank PT4400 converter flashes to 4800-5000
Shift extension is 700 rpms (6300-5700)
A:F was fairly steady around 13:1
Here are the scans
12-09-2007 | 03:37 PM
#31
12-09-2007 | 03:39 PM
#32
Thread Starter
Retired Street Racer
iTrader: (49)
Joined: Mar 2004
Posts: 7,318
Likes: 2
From: Southside
I have a Richmond 3.73 gear in the 10 bolt.
All of my mods are listed here: http://www.fquick.com/garages/viewvehicle.php?id=2213
All of my mods are listed here: http://www.fquick.com/garages/viewvehicle.php?id=2213
12-09-2007 | 03:58 PM
#34
Thread Starter
Retired Street Racer
iTrader: (49)
Joined: Mar 2004
Posts: 7,318
Likes: 2
From: Southside
Thanks man! After that I am going to go for the Cam Only record, and then seeing how far I can go with the stock bottom end. I will probably through a set of heads and some spray after cam only.
12-09-2007 | 04:56 PM
#35
Launching!
Joined: Nov 2007
Posts: 242
Likes: 0
From: Guam
sounds good bro. 23rd work begins. you live in new lenox? wait joliet. I live in crest hill. not far at all. if it's not snowing to bad we should meet up and cruise.
12-09-2007 | 07:28 PM
#39
Thread Starter
Retired Street Racer
iTrader: (49)
Joined: Mar 2004
Posts: 7,318
Likes: 2
From: Southside
Thanks bro. Next year should be a fun year for the Late Model EFI class in NMCA
