hp/torque guestimate??
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Joined: Jan 2007
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From: Tampa, FL
hp/torque guestimate??
just curious... i know the 2003 5.7L is rated stock at 345hp and i believe 360 torque. i have a volant cai (which quotes a gain of 15-20hp... which seems a bit excessive to me), flowmaster 50 series muffler (which i can't find an estimate on hp gains) and a TB spacer... any rough guesseson what i might be putting out power-wise??? i can't find a dyno anywhere close. thanks!
neil O.
neil O.
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Joined: Jul 2007
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From: South Georgia/East Florida
RE: hp/torque guestimate??
Don't know about the torque numbers but HP is gonna be about as follows:
Stock, your 345 is gonna dyno about 240 or so at the rear wheels. The CAI is gonna add about 3-5 and the flowmaster is not gonna change much (I have a 50HD and it sounds great, but the flow is not much better than stock). The TB spacer is actually shown to lose you about 1-2 HP on modern TB's.
Don't be discouraged by the low numbers of the CAI, it's a cumulative type of mod. It actually helps much more with other mods (better flowing exhaust, headers, tuner, etc.) when they are in place...
Stock, your 345 is gonna dyno about 240 or so at the rear wheels. The CAI is gonna add about 3-5 and the flowmaster is not gonna change much (I have a 50HD and it sounds great, but the flow is not much better than stock). The TB spacer is actually shown to lose you about 1-2 HP on modern TB's.
Don't be discouraged by the low numbers of the CAI, it's a cumulative type of mod. It actually helps much more with other mods (better flowing exhaust, headers, tuner, etc.) when they are in place...