LT1-LT4 Modifications 1993-97 Gen II Small Block V8

new motor dyno cc503

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Old 04-03-2008, 01:13 AM
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Default new motor dyno cc503

ok here is the rundown its got cc503, 1.6 SA comp pro mags, swirl polish valves 1.94,1.5,p&p heads flow around 265-270, ported intake, ram air , and new bottom end. the numbers seem kinda low but it is untuned and it does not have the longtubes on yet just stock manifolds. but the graph looks really crappy above 4k ( any ideas why)? ohh and it is a M6 car
any thoughts on the graph, the #s, and when get my headers and tune on what it will do? as you can see it only did 299.18HP & 311.17 TQ
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Old 04-03-2008, 02:14 AM
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Get some LT's and a tune! MadZ28 or Pcm4less will help you get much better #'s out of the engine.
Old 04-03-2008, 07:17 AM
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damn yo... my car with a hotcam and a stock stall a4 put down 337whp \=

get that thing tuned asap and some longtubes or mids from as&m [=
Old 04-03-2008, 08:26 AM
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your opti's probably taking a dump. my old bolt on z28 make more power than that with the curves breaking up at 4k just like yours. you need a tune, LTs, an opti, and a prayer.
Old 04-03-2008, 11:15 AM
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its a new opti im just wandering if it is picking upknock retard so im thinking i may need the lt4 knock module
Old 04-03-2008, 12:30 PM
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ohh i forgot to mention my rockers were only set to priliminary, so what happend was after the pull one of my rockers slipped off and some of the others were not tight enough, but they are fixed now i set them while running
Old 04-03-2008, 12:44 PM
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yeah wow. get the LTs and tune. you're running at a bolt on only powerlevel right now, you should be about 40-50 rwhp higher after longtubes and a tune, on average.
Old 04-03-2008, 02:07 PM
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thanks ohh and nice car ive got a 94 firhawk same color (rarecolor)
Old 04-03-2008, 03:42 PM
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there is something def wrong my car with the cc503 match ported heads and intake full bolt ons stock bottom end and valves with arizona mid headers with bad exhaust leaks at the head made 358rwhp and 363rwtq...tuned by pcmforless
Old 04-03-2008, 08:11 PM
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no other ideas what my prob. might be beacause cam only i should be higher that that, the only thing that are noticably wrong with the car is the vacuum solenoid for the fuel line return hose (the hose is broken) other that that nothing else will that cause any prob. im thinking maybe i need a lt4 knock module.
Old 04-04-2008, 11:40 AM
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when my car went in to get tuned it only made 301 those numbers were after he tuned it get it tuned and get those long tubes on



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