[BrilliantBlackHemi]

Baseline Dyno Runs.
1) 286.28 HP 327.51 TQ
2) 286.80 HP 327.65 TQ
3) 287.43 HP 323.92 TQ (opened air box top left cracked open sitting on top)

http://public.fotki.com/99300mricva/300c_dyno/

 

[CottyGee]

Pretty impressive! Thanks for posting that!!!

 

[II kings 9:20]

BBH, do you think 12 hp is possible from the AirRaid intake system, open element no box.

 

[BrilliantBlackHemi]

Not sure. I ordered a K&N Typhoon intake. I will install and Dyno that one again and we'll see.

 

[fatchance]

BBH keep us posted. I'm interested in the Airaid or the K&N. I just want to make sure that it's woth the money.

 

[Blue]

Im confused. I dont know anything about the Dyno data etc. The 300C is rated at 340 HP and 390 ft torque. These numbers are far below that...Why? Are the numbers posted here representative a positive thing or a negative thing? Sorry for the "dumb" question but I am trying to learn. Thanks

 

[james jefferson]

Im confused. I dont know anything about the Dyno data etc. The 300C is rated at 340 HP and 390 ft torque. These numbers are far below that...Why? Are the numbers posted here representative a positive thing or a negative thing? Sorry for the "dumb" question but I am trying to learn. Thanks

unfortunely, power is lost when transferring to rear (or drive ) wheels. so we have two numbers, 1. power/torque from engine and 2. power/torque delivered to drive wheels.

 

[Blue]

So is 286 a very good number?

 

[jjs]

So is 286 a very good number?

You may want to read around...

http://www.allpar.com/forums/lofiversion/index.php/t39261.html

http://www.superstang.com/horsepower.htm

http://www.google.com/search?hl=en&lr=&q=parasitic+drivetrain+loss+automatic+transmissions

 

[JonW]

http://www.superstang.com/horsepower.htm

Tons of info in that link - Thanks.

 

[Blue]

Ditto ... thanks

 

[BrilliantBlackHemi]

So is 286 a very good number?

It's what I was expecting. For a 20% loss due to automatic tranny drivetrain, a 286 = 343.2 and 287 = 344.4 HP at the engine. DC rates us at 345 HP if I remember right. 345HP is stock, I am stock, so 286-287 at the wheels makes sense to me.

The K&N Typhoon Kit I ordered is backordered and may not be in until next week. I was hoping to get it and dyno again before Thanksgiving. Still trying.

 

[james jefferson]

So is 286 a very good number?

well, i guess its all relative. i'm satisfied.

 

[Gloveperson]

That is a very good torque curve!

20% drivetrain loss for this car seems a little gracious. I would say around 22-25. Still, thanks for the info, haven't had a chance to bring the 300 to the dyno yet.

Looks like it is running a little rich though, is that a 12.5:1 I see?

-Todd

 

[M3SMG02]

That means, an SRT8 Rear Wheel HP is @ 357HP

Yummmm!

LJB

 

[M3SMG02]

286 divided by 340 is .84

Does that mean only 16% of HP is lost thru the drivetrain?

Sure looks like it...

LJB

 

[M3SMG02]

Either that, or the 340 Advertized HP is conservative...

LJB

 

[BrilliantBlackHemi]

I was thinking 345HP was the advertised HP. I think it is for some engines. Wonder why it's 330 HP in a Jeep, 340 in a 300C, and 345? in a RAM. Same engine, different programming I guess.

Anyways, 340 is probably the average or goal. Some engines pull a little more, some less. Maybe mine is a 345 HP engine.

 

[BrilliantBlackHemi]

Here's some comparisons of my dyno runs stock vs after Magnaflow and K&N Typhoon installed, along with SAE vs Uncorrected Values. I did not disconnect the battery, so I don't know if that will make a difference. I have driven the car for about 350 miles since the upgrades.

 

[Northern Rider]

Here's some comparisons of my dyno runs stock vs after Magnaflow and K&N Typhoon installed, along with SAE vs Uncorrected Values. I did not disconnect the battery, so I don't know if that will make a difference. I have driven the car for about 350 miles since the upgrades.

Thanks for the dyno numbers, Robert. Much appreciated.