UNTUNED dyno of 408 in Hawaii
12-03-2006, 01:31 AM
#2
TECH Fanatic
iTrader: (16)
Join Date: Oct 2003
Location: Ruffin,N.C.
Posts: 1,456
Likes: 0
Received 0 Likes
on
0 Posts
Well for one your air fuel ratio is way off. You need to get it down to around 12 and a half to 13 from 4375 rpms all the way to red line. how much timing are you running?
12-03-2006, 01:32 AM
#3
TECH Fanatic
iTrader: (16)
Join Date: Oct 2003
Location: Ruffin,N.C.
Posts: 1,456
Likes: 0
Received 0 Likes
on
0 Posts
Im thinking you are running really lean. be careful you dont hurt your motor. im not a tuner but thats what it looks like to me. good luck and enjoy your car after you get it right.
12-03-2006, 03:33 PM
#6
Originally Posted by DONAIMIAN
Time to order tuning software and a wideband. Id try not to drive the car if possible untill you get that taken care of.
If i were you , the only time that i would drive it is to get it tuned
12-03-2006, 04:50 PM
#7
TECH Addict
Join Date: Jul 2002
Location: Somewhere I Belong
Posts: 2,906
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by silverbeast
Im thinking you are running really lean. be careful you dont hurt your motor. im not a tuner but thats what it looks like to me. good luck and enjoy your car after you get it right.
Btw what is the CR buddy ?!
peace
Trending Topics
12-04-2006, 10:37 AM
#13
TECH Senior Member
iTrader: (18)
Join Date: Jun 2002
Location: NW Houston, TX
Posts: 10,036
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Brian Tooley
You have 12.8:1 air fuel ratio at 4000 rpm and still only 350 lb ft of torque.....you have way more problems then tuning.
12-04-2006, 10:54 AM
#14
TECH Enthusiast
Join Date: Sep 2004
Location: Omaha, NE
Posts: 564
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by DONAIMIAN
With the graph being broken up like it is, do you think it could be a detonation problem?
12-04-2006, 12:54 PM
#15
TECH Senior Member
iTrader: (10)
Join Date: May 2005
Location: Bossier city,LA barksdale AFB
Posts: 5,353
Likes: 0
Received 2 Likes
on
2 Posts
Something must to be wrong! I did close to the same #'s with just a cam with same A/F But my injectors were at 109% But im around 405whp now with injectors,Tune,ported TB,ASP underdrive pulley.
Note this was on stock tune and b4 all my new mods above!
My car is a 99 too crapy heads
Note this was on stock tune and b4 all my new mods above!
My car is a 99 too crapy heads
Last edited by SIC LSX; 12-04-2006 at 01:00 PM.
12-04-2006, 02:46 PM
#16
12 Second Club
Thread Starter
iTrader: (6)
Join Date: Jul 2005
Location: Chitown-Jax NC-Jax FL-Honolulu-OKC, OK-NOW New Orleans Area
Posts: 626
Likes: 0
Received 0 Likes
on
0 Posts
Brain then what else do you think it could be asides from a tune problem? Cause I have no clue. I get a back fire from time to time at low RPMs It smells like its super rich but on the Graph it shows super lean. The only thing wrong I can figure out is a small exhaust leak off the Y-pipe. It burns gas like its rich a whopping 13.2MPG.
Its an FFHP 6.0 Stroker 408
PRC 6.0 stage 3 heads that where tounched up a tad by FFHP
TSP Gaint Cam 248/252 611/613 on a 113LSA
Hooker 1 7/8 longtube off road Y
SLP underdriven
its a SpeedDensity car
MTI clear lid
MSD 8.5 wires
NGK tr55 plugs
Now running Mobil 1 full syn
always 91 or better gas
stock rockers
42lucas injectors
Ractronix 255l system
6speed car
Oh the exact details for the motor I didnt get cause of what happend with FFHP I know it was built for spray. But anything else I am cluless I never got my blue sheets or anything
Need anything else?
THanx Chris
Its an FFHP 6.0 Stroker 408
PRC 6.0 stage 3 heads that where tounched up a tad by FFHP
TSP Gaint Cam 248/252 611/613 on a 113LSA
Hooker 1 7/8 longtube off road Y
SLP underdriven
its a SpeedDensity car
MTI clear lid
MSD 8.5 wires
NGK tr55 plugs
Now running Mobil 1 full syn
always 91 or better gas
stock rockers
42lucas injectors
Ractronix 255l system
6speed car
Oh the exact details for the motor I didnt get cause of what happend with FFHP I know it was built for spray. But anything else I am cluless I never got my blue sheets or anything
Need anything else?
THanx Chris
12-04-2006, 08:56 PM
#19
TECH Senior Member
iTrader: (2)
Join Date: Sep 2003
Location: Houston
Posts: 10,591
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Brian Tooley
You have 12.8:1 air fuel ratio at 4000 rpm and still only 350 lb ft of torque.....you have way more problems then tuning.
Glad I am not the only one who noticed it.
What cylinder heads and cam are in the motor?