New Dyno Numbers here
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From: Peoria, AZ
New Dyno Numbers here Well while sitting around at Pro Dyno, I decided to Dyno the car before it gets the LS6 intake and Programmed..
Stock the car dynoed
297 rwhp and 302rwtq
with all mods I have now "Lid, TR 220/220 114 LSA, LT's and 3.73's
341 rwhp and 322 rwtq unlocked and untuned
Peak HP was at 5800 rpms and Peak TQ was at 5600 rpms weird
TQ seems a little low
My A/F ratio was about 13.8 across
Stock the car dynoed
297 rwhp and 302rwtq
with all mods I have now "Lid, TR 220/220 114 LSA, LT's and 3.73's
341 rwhp and 322 rwtq unlocked and untuned
Peak HP was at 5800 rpms and Peak TQ was at 5600 rpms weird
TQ seems a little low
My A/F ratio was about 13.8 across
Thread Starter
11 Second Club
Joined: May 2002
Posts: 710
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From: Peoria, AZ
Originally Posted by Wicked_Hugger99
Tuned and locked you'll surely see better results. Prolly 25-30rwhp and torque respectively would be my guess. 13.8 a/f Sounds kinda lean to me though
Thread Starter
11 Second Club
Joined: May 2002
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From: Peoria, AZ
Originally Posted by Wicked_Hugger99
Good deal. That intake will be worth 10-15rwhp easy w/ tune. You got a ported TB and ud pulley?
A 13.8 is lean.
......keep in mind that's on a dyno (very little resistance) on the road you will have more resistance and this resistance will cause your A/F to run even a little more lean
Personally, I think a 12.7-12.9 dyno reading is best.
Good food for thought:
Run a little rich, you could loose a little HP
Run a little lean, you could loose an engine
......keep in mind that's on a dyno (very little resistance) on the road you will have more resistance and this resistance will cause your A/F to run even a little more lean
Personally, I think a 12.7-12.9 dyno reading is best.
Good food for thought:
Run a little rich, you could loose a little HP
Run a little lean, you could loose an engine
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Originally Posted by camaro98z28
What is a good A/f ratio to be at? 13.0 is normal right? wouldn't 11 to 12.0 be best?
12.7 to 12.9 A/F ratio is great for a dyno reading
Anything below 12.4 is starting to get to rich - but you'll just loose a little HP and gass milage (have to change plugs sooner)
Anything above a 13.3 is on the verge of getting too lean - this could lead to engine damage/failure.