Dips in Dyno Graph Normal?
02-12-2013, 10:59 AM
#1
Dips in Dyno Graph Normal? Was bored last night and got to comparing my "bolt on dyno" to "cam dyno." I noticed some dips in the 3000rpm range and also 4300rpm range of both TQ and HP.
From comparing several other ls1 dyno graphs it seems this is common, but I was just wondering if that is indeed the case and why my bolt on dyno is so smooth?
Thanks for the help!
From comparing several other ls1 dyno graphs it seems this is common, but I was just wondering if that is indeed the case and why my bolt on dyno is so smooth?
Thanks for the help!
02-12-2013, 08:55 PM
#3
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Yes it's normal depending on the intake you have. Look at Pat G's sticky in the Gen III Internal engine section. He explains the dyno double dip in one of his write ups. He says its due to the intake not able to move enough air for the engine setup.
I just added a Fast 92 to mine and the dip was non-exsistant. Flat torque curve, and a steady smooth HP curve.
What are your mods? What intake do you have?
I just added a Fast 92 to mine and the dip was non-exsistant. Flat torque curve, and a steady smooth HP curve.
What are your mods? What intake do you have?
02-12-2013, 09:28 PM
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I would try a leaner AFR in the 4200 RPM Range to try to "Iron" the dip out as much as possible...
As for the FAST 92 making it disappear... Mine was still there with a FAST 92 and Ported 243's.
As for the FAST 92 making it disappear... Mine was still there with a FAST 92 and Ported 243's.
02-13-2013, 02:44 PM
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Yes it's normal depending on the intake you have. Look at Pat G's sticky in the Gen III Internal engine section. He explains the dyno double dip in one of his write ups. He says its due to the intake not able to move enough air for the engine setup.
I just added a Fast 92 to mine and the dip was non-exsistant. Flat torque curve, and a steady smooth HP curve.
What are your mods? What intake do you have?
I just added a Fast 92 to mine and the dip was non-exsistant. Flat torque curve, and a steady smooth HP curve.
What are your mods? What intake do you have?
02-13-2013, 03:07 PM
#7
Yes it's normal depending on the intake you have. Look at Pat G's sticky in the Gen III Internal engine section. He explains the dyno double dip in one of his write ups. He says its due to the intake not able to move enough air for the engine setup.
I just added a Fast 92 to mine and the dip was non-exsistant. Flat torque curve, and a steady smooth HP curve.
What are your mods? What intake do you have?
I just added a Fast 92 to mine and the dip was non-exsistant. Flat torque curve, and a steady smooth HP curve.
What are your mods? What intake do you have?
TSP Torquer V2 114lsa
Comp 918 Springs
Powerbond 25% pulley
TSP 1 3/4 headers
TSP ORY
SLP LM2
SLP Lid
Potz P&P throttle body
MSD Wires
Stock LS6 intake
