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

cam only dyno # inside

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Old Jan 9, 2008 | 05:43 PM
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From: Gilmer
Default cam only dyno # inside

just got back from the dyno.


386.6hp @5600? I think the rpm wasnt calibrated right.
420.8tq? @3782?
hp + tq met at 4800rpm
on a mustang dyno running dynojet software, through slp2otl

max power was at 129mph... max tq @ 90mph

with mustang software and cutout open.
345.7 @6000
342.7 @4171
hp + tq met at 4000rpm

mods in sig.
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Old Jan 9, 2008 | 05:46 PM
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nice numbers
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Old Jan 9, 2008 | 05:53 PM
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Calling a 355 cam only is a bit misleading. A properly done shortblock is worth some power.

HP and torque can not meet at 4800 rpm so there was a problem with the setup or software. torque multiplied by RPM divided by 5250 equals hp so the 4800 is a problem with the setup.
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Old Jan 9, 2008 | 06:00 PM
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355


Is Not Cam Only@!!!!!!!!!
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Old Jan 9, 2008 | 06:13 PM
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oh its a 355? just noticed sig...maybe he means cam only 355
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Old Jan 9, 2008 | 06:26 PM
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what cc wre the pistons? whis will tell us weather or not they were worth and tq...it shouldent change power at all...which is a little high...id believe 365-370 not any more

definately not with a stock t/b injectors no pullies
shorties or longtubes? what kind of intake?
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Old Jan 9, 2008 | 06:26 PM
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ya its a little ole 355. heads are unported intake unported, stock throttle body


where should the hp and tq meet? I know the rpm cal was off cause I know the max hp should be around 6100-6200



corrected # are 375hp and 408tq



and I did beat a cam only ls1 that dyno'd 389hp. by about 1-2 cars so I know this is a big torque motor.
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Old Jan 9, 2008 | 06:27 PM
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car does not have a cc306 in it. but its close custom lme shaft
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Old Jan 9, 2008 | 06:42 PM
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From: Gilmer
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Originally Posted by daniel6718
what cc wre the pistons? whis will tell us weather or not they were worth and tq...it shouldent change power at all...which is a little high...id believe 365-370 not any more

definately not with a stock t/b injectors no pullies
shorties or longtubes? what kind of intake?

car has injectors, pullies, with longtubes, custom 3"y and 3in Y back. bone stock lt1 intake manifold. heads have valve job and lt4 valves


dont have info on pistons
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Old Jan 9, 2008 | 09:57 PM
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thats some good *** numbers.. not sure how you got them.. what kind of cam are you running? im running about the same setup.. 355.. bolt ons and LT4 hotcam and i only made like 330whp and 367wtq..
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Old Jan 9, 2008 | 09:57 PM
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then again i have an A4... stock stall too
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Old Jan 10, 2008 | 02:22 AM
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unknown specs on cam, just know that its a custom lme shaft. sotp car quits pulling right at 6200 I spin it to about 6500



both pulls had a hickup at about 4900 hp fell off about 2-3hp for about 25-30rpm then picked back up. torque fell off a little more.
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Old Jan 10, 2008 | 02:36 AM
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compression? valve job?
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Old Jan 10, 2008 | 02:41 AM
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From: Gilmer
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Originally Posted by rasputin
compression? valve job?


yes valve job, no clue on compression, it doesnt like anything less than 93, it will ping in 4th-5-6th with regular.
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