Official LNF HP/Torque graph - Page 4

SolsticeMan · 05-11-2006, 08:06 AM

Quote:

Originally Posted by LBJay

The GM graph is from an engine brake dyno. The engine is run at full throttle and the dyno places a load on the engine to hold it at an RPM and take a torque measurement.

Buzz Lightyear · 05-11-2006, 10:15 AM

I realize it's on an engine dyno. They still have to quit making the dyno run at some point.

LBJay · 05-11-2006, 10:53 AM

Quote:

Originally Posted by Buzz Lightyear

They still have to quit making the dyno run at some point.

When they stop (close throttle) it doesnt take any more measurements. The dyno ploting ends at whatever RPM they set.

Spooled · 07-11-2006, 03:19 PM

Does anyone know what the rod length is in the LNF? The stroke x bore lends itself to high RPM power, and if the rod ratio is high enough (1.70 - 1.75), this could be a KILLER engine with a bigger turbo. I have a feeling that the powerband is limited by the turbo. I would be disappointed if GM put short rods in it.

DugsGMs · 07-12-2006, 04:34 AM

Quote:

Does anyone know what the rod length is in the LNF? The stroke x bore lends itself to high RPM power, and if the rod ratio is high enough (1.70 - 1.75), this could be a KILLER engine with a bigger turbo. I have a feeling that the powerband is limited by the turbo. I would be disappointed if GM put short rods in it.

Assuming the deck heigth stays the same(I bet it does) theyd almost have to put in longer rods.

mena661 · 07-12-2006, 08:35 AM

Spooled,
Start a seperate thread for this. Maybe FrankC5R knows the answer to your question.

mbsolsticeguy · 11-23-2006, 12:33 PM

I have never seen a torque curve like that - that can't be for real

mena661 · 11-23-2006, 01:41 PM

Magnaflow posted a dyno sheet showing stock and 3" exhaust. Check out the GXP section.

masssrt · 02-03-2007, 07:29 PM

Quote:

Originally Posted by WasRexPsiFi

I am currently the owner of a heavily modified WRX, suspension, brakes, HP (>400). I don't *plan* on doing that again, but what a ride!

This GXP looks like my next ride. Just hope my WRX last long enough ... 400 + HP takes its toll over 60K miles. I am convinced turbos are THE way to go. Conservative gas mileage with an easy foot, but a blast of HP when you want. The WRX forums taught me what WOT means.

This torque curve is clearly limited by the ECU. Its easy to imagine simple changes to let it open up. This flat curve is definitely controlled by the ECU so someone will soon figure out how to reprogram.

D@mn you forums!!! My life was so simble, so ... ... boring before!!!

my thoughts exactly, only I have an srt4