Dynamometer Results & Comparisons Dyno Graphs | Power Comparisons | Dyno Truck List

Dyno results

Old Dec 19, 2009 | 01:00 PM
  #1  
wopc69's Avatar
Thread Starter
Teching In
iTrader: (1)
 
Joined: Jun 2008
Posts: 15
Likes: 0
From: Las vegas
Default Dyno results

See anything wrong with graph? I will be adding nitrous soon so i want to fix any mechanical problems first.
Attached Thumbnails Dyno results-scan0002.jpg  
Reply
Old Dec 19, 2009 | 03:20 PM
  #2  
norris_83's Avatar
TECH Regular
iTrader: (4)
 
Joined: Sep 2008
Posts: 473
Likes: 0
Default

looks sound to me.. how was the timing at peak torque? I'm sure you could take a look at it and add some torque lower down to get a smoother torque curve..
Reply
Old Dec 19, 2009 | 04:19 PM
  #3  
wopc69's Avatar
Thread Starter
Teching In
iTrader: (1)
 
Joined: Jun 2008
Posts: 15
Likes: 0
From: Las vegas
Default

Originally Posted by norris_83
looks sound to me.. how was the timing at peak torque? I'm sure you could take a look at it and add some torque lower down to get a smoother torque curve..
no clue what timing was im just worried about how it drops at 5500 maybe valve springs?
Reply
Old Dec 19, 2009 | 11:30 PM
  #4  
wopc69's Avatar
Thread Starter
Teching In
iTrader: (1)
 
Joined: Jun 2008
Posts: 15
Likes: 0
From: Las vegas
Default

nobody? ok then im guessing its all good for sprayin then!
Reply
Old Dec 20, 2009 | 12:00 AM
  #5  
silverz28camaro's Avatar
TECH Fanatic
iTrader: (20)
 
Joined: Sep 2008
Posts: 1,943
Likes: 1
From: st.louis
Default

Originally Posted by wopc69
no clue what timing was im just worried about how it drops at 5500 maybe valve springs?
its just the power band of your cam. My 224 227 did the same thing, I swapped to a tv2 cam 232 234 .598 lift and it pulled to 6400. hp different there at 6500 was 60hp. buy peak gain was 30hp.
Reply
Old Dec 20, 2009 | 10:34 PM
  #6  
black00chev's Avatar
Slowest turbo build ever!
iTrader: (2)
 
Joined: Dec 2009
Posts: 2,905
Likes: 1
From: Warrenton, VA
Default

Your afr looks to be a little lean... Looks like 12.7-13.0, try gettin it down a little richer to say 11.7-12.2 and see if that gets you a little more
Reply
Old Dec 21, 2009 | 07:33 AM
  #7  
wopc69's Avatar
Thread Starter
Teching In
iTrader: (1)
 
Joined: Jun 2008
Posts: 15
Likes: 0
From: Las vegas
Default

Originally Posted by black00chev
Your afr looks to be a little lean... Looks like 12.7-13.0, try gettin it down a little richer to say 11.7-12.2 and see if that gets you a little more
thats wierd at the track my wideband says 11.2 all the way and the graph to me says it starts lean but then by 3500 its consistent 11 all through run. Am i reading it wrong?
Reply
Old Dec 21, 2009 | 02:27 PM
  #8  
black00chev's Avatar
Slowest turbo build ever!
iTrader: (2)
 
Joined: Dec 2009
Posts: 2,905
Likes: 1
From: Warrenton, VA
Default

I very well could be wrong, I was assuming the red line was to mark 14.7. If your w/b is reading 11.2 then i would maybe even lean it up just a little bit.

But Ill patiently wait for someone who is a little better with the FI stuff to correct me.

What wideband are you running?
Reply
Old Dec 21, 2009 | 02:37 PM
  #9  
D_reks{5.3}'s Avatar
TECH Addict
iTrader: (13)
 
Joined: Dec 2007
Posts: 2,546
Likes: 0
From: Bako
Default

It seems low. A member on here just dynod his lq9 with prc 2.5 heads and 23x cam and he put down 475rwhp... I would think you would be atleast 450+
Reply
Old Dec 21, 2009 | 07:53 PM
  #10  
03sierraslt's Avatar
Admin
iTrader: (22)
 
Joined: Jul 2004
Posts: 19,007
Likes: 221
From: Western PA
Default

I find it odd that your power starts to fall off at 5300, what are you IAT's like. I imagine they are pretty damn hot and timing is being pulled.

What valve springs are you running? I think the graph looks fine but I would think your HP would keep climbing past 5300, with that cam I think it should peak about 6-6200 (my guess)
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 02:23 PM.