Dyno sheet
02-22-2008, 12:56 AM
#24
TECH Senior Member
Just from what I can see;
For increased NA power:
1- Bigger injectors 42lbs recomended
2- Port TB
3 Tune correctly
For juice:
4- Tune right AFR, use window box for nitrous
5- TR6 or 1 step colder plugs for N2O (reduce gap to .035>.040 range)
6- Wideband O2 kit for AFR monitoring
For increased NA power:
1- Bigger injectors 42lbs recomended
2- Port TB
3 Tune correctly
For juice:
4- Tune right AFR, use window box for nitrous
5- TR6 or 1 step colder plugs for N2O (reduce gap to .035>.040 range)
6- Wideband O2 kit for AFR monitoring
02-22-2008, 08:35 AM
#27
TECH Senior Member
My 370 is optimized at 12.6 peak rpm and 13.2 peak trq no knock.
AFR should never be linear in a combo at WOT if tuned correctly.
02-22-2008, 09:42 AM
#30
TECH Regular
iTrader: (20)
Join Date: Mar 2007
Location: NW Burbs of Chicago
Posts: 452
Likes: 0
Received 0 Likes
on
0 Posts
Ok, I gotta bite on this because despite your jacked up LEAN A/F your dyno sheeet shows some serious power. Who did you get the cam and heads from and what was your budget on the project (ballpark is cool)?
You NEED NEED NEED to fix that A/F before you spray that motor or else you're going to be searching for piston parts in your oil pan...
You NEED NEED NEED to fix that A/F before you spray that motor or else you're going to be searching for piston parts in your oil pan...
02-22-2008, 03:18 PM
#31
On The Tree
Thread Starter
iTrader: (1)
Join Date: Oct 2006
Location: Poplar Bluff, MO
Posts: 169
Likes: 0
Received 0 Likes
on
0 Posts
I called the tuner today and he said the sensor was at the tail pipe and the cats were causing the reading to show high and the actual F/A was 13.1 to 13.5. I will get the injectors and ported throttle body and take it back in about two weeks and do a dyno on motor and n2o for you guys. If I didnt mention before it is a NX wet kit. I hope this will help out from 3 to 4K but on motor after 4k it is scarry. Thanks a lot for all the replies.
02-22-2008, 03:32 PM
#32
On The Tree
Thread Starter
iTrader: (1)
Join Date: Oct 2006
Location: Poplar Bluff, MO
Posts: 169
Likes: 0
Received 0 Likes
on
0 Posts
Ok, I gotta bite on this because despite your jacked up LEAN A/F your dyno sheeet shows some serious power. Who did you get the cam and heads from and what was your budget on the project (ballpark is cool)?
You NEED NEED NEED to fix that A/F before you spray that motor or else you're going to be searching for piston parts in your oil pan...
You NEED NEED NEED to fix that A/F before you spray that motor or else you're going to be searching for piston parts in your oil pan...
H/C, pushrods, gaskets, 1900 Optional LS2 timing chain, LS6 pump, ARP bolts,
Racetronic FP w/hw kit 650
Wideband tune 350
Labor was me but RPM in St Louis charges $1100 for H/C swap.
They charged $350 for fuel pump and hot wire install.
$500 for gears,TA cover and clutch including turning the flywheel.
$100 for dyno runs.
02-23-2008, 10:49 AM
#33
On The Tree
Thread Starter
iTrader: (1)
Join Date: Oct 2006
Location: Poplar Bluff, MO
Posts: 169
Likes: 0
Received 0 Likes
on
0 Posts
From tuner "I guess you talked to tim about the A/F ratio. It will always show leaner at the tailpipe rather than what it really is, you have cats, and you tune is not just a dyno tune. The A/F ratio will show leaner on a dyno roller and richer on the street because the roller doesnt weigh as much as your car does, so it will run leaner on the rollers."
Last edited by jcolews6; 02-23-2008 at 10:50 AM. Reason: ed
