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Tq Issues On Dyno

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Old 09-26-2006, 04:05 PM   #1
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Default Tq Issues On Dyno

I'm very pleased with my motor overall...I'm just questioning the amount of tq it produces....502/446 on a mustang 1750 with motor in sig.....I've noticed alot of other #'s in peoples sigs and #'s quoted on dynos and the tq seems alot higher than mine...I realize the key is the right combo...but most of these #'s are from smaller motors than mine, a few are the same...I also realize the cams are diff....but I figured I would have a little more tq than what I'm seeing....I know if I go to a Dyno Jet my #'s would increase..so either mne isn't making all the tq it can,,or it has the wrong combo,,or others are lying about their #'s or maybe they have the rigt combo........Just thought I could get some good feedback on this....
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Old 09-26-2006, 09:31 PM   #2
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Hmmmm, where are all the experts???
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Old 09-27-2006, 08:56 AM   #3
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If those pulls were performed on our 1750, you would convert to approx 560/500 on the Dynojets around here. But yes, different combos provide different results, especially in the TQ graphs.
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Old 09-27-2006, 11:01 AM   #4
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Like we discussed in PMs, the 114LSA +2 of that cam gives you an intake valve closing point of 54 degrees ADBC at .050". This is pretty late when using the FAST intake, even on a 408. To work best with the tuned runner length of your FAST intake and the 11.25:1 SCR, you'll need an earlier IVC. This will increase dynamic compression (which is fairly low right now) and boost torque. You can either advance the cam you have or get a narrower LSA cam that brings your DCR into the mid to high 8s.
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Old 09-27-2006, 10:11 PM   #5
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Thanks for the imput Pat,, you always know your stuff when it comes to these things...I'll pm ya later and talk about my options...I just don't want a big project on a new motor,,especially since it was built right and pvc and cam was degreed properly...don't want to put another cam in if I can't do it right...meaning degreeing it with the motor not being pulled....
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