Realistic Calculations of HP

[2k2TahoeSS]

Can anyone give me a legit number (obviously approximate) of added HP from K&N FIPK, 1 Flowmaster 50 series, TOG Longtube headers, and Hypertech 3?  I dont want an overshoot if at all possible.  Thanks

 

Ben

[cummins4953]

Best bet, put it on a dyno, anything else is guesstimating crank-HP which is meaningless...go find out what you put to the wheels. Most places will charge around $70 or so. When you run all air-management you don't get the full effect of all of them as they tend to work agains't each other so it is eally hard to say.

 

Best guess, 10 from the K&N, 35 or so from exhaust if your lucky, but I don't know about chips for gassers, but probably around 25-30. So total...call it around 75 at best...that being at the crank, less at the wheels. Like I said, go put it on a dyno.

[CMNTMXR81]

Plus you also need a base/stock number off which to factor in approximate gain.  Generally if you have a stronger engine than your peers, you might not see as much as another 5.3 that dyno'd lower stock.

[SnakeEyeSS]

realistic?  exhaust: 10-20 exhaust, HPPIII will give you close to 15 RWHP, K&N about 3 RWHP, headers about 15. thats a guess..