[mow]

05 mustang GT ( auto ) with :

- cmop stag2 cams.
- 3.73 ratio
- headers
- exust Borlla :lala
- K&N GII
- program predator ?????????????????????????
- roush pulleys
- Meizer Electric Water Pump

I'm putting down 314hp and 311trq ( I think it's fine ) no spray

And then:

- 3000 trq stall ( TCI )
- Autolites 1 degree colder for the zex

dyno again and I was surprised 275hp and 265trq no spray

after modifying the parameters with that ( SEGA ) predator flash device it goes up to 280hp 


is true that the trq converter reduce the hp on dyno ?
Any advice of using that flash device ( predator ) ?

[1slo5.0]

Chassis dynos are far from accurate. Don't get caught up in how much horsepower your car makes or doesn't make on a chassis dyno. There are so many variables that even wheel placement on the rollers can change the horsepower read out. A looser converters will use more horsepower than a tight converter because the extra stall speed is gained thru slippage. Not a big deal. A 3000 stall converter is going to be a minimal loss anyway. Your horsepower loss could be from a number of things, air temp, air density, wheel position on rollers, air pressure in tires, etc.

[Justincredible]

Originally Posted by Darrell Chassis dynos are far from accurate. Don't get caught up in how much horsepower your car makes or doesn't make on a chassis dyno. There are so many variables that even wheel placement on the rollers can change the horsepower read out. A looser converters will use more horsepower than a tight converter because the extra stall speed is gained thru slippage. Not a big deal. A 3000 stall converter is going to be a minimal loss anyway. Your horsepower loss could be from a number of things, air temp, air density, wheel position on rollers, air pressure in tires, etc.

+1

Ive seen this again and again.

Loose torque converters play hell on dynos.

Remember...the dyno is a tuning tool only.

[Twist 2 Go]

+2. It might show less hp on the dyno but the real test is the strip. A ET slip doesn't lie.

[T.M.-808-]

i agree...and dynos don't win races..

That aside,the car should FEEL alot quiker,does it?

Did you dyno before the cams?

[mow]

Yaa the cams added 40whp www.rpmoutlet.com

before cams 275whp

[1slo5.0]

I've yet to see an advertised horsepower gain be anywhere near realistic.

[twinturbo]

Originally Posted by Darrell I've yet to see an advertised horsepower gain be anywhere near realistic.

I concur.

The loose converters eat a ton of displayed power on the dyno, and it is just a tool.

[FireryDriver]

Yeah I agree too.