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Post your dyno numbers and mods thread!

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Old Jun 15, 2018 | 10:51 AM
  #1  
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Default Post your dyno numbers and mods thread!

Hey everyone, if this thread already exists somewhere feel free to direct me to it. I did some searching and didn't find one that was specific to the C3.

With that said, post up your C3 Corvette's dyno numbers! Let's try to keep the information accurate by following this format:

Horsepower/Torque @ RPM:
Engine specs: (displacement, heads, intake, cam, power adders, etc...)
Transmission: (Th400, T-10, T-56, 700r4, etc...)
Type of Dyno: (Dynojet, mustang, etc...)
Elevation: (Density altitude)
Any other relevant info:




Please keep this to DYNO PROVEN NUMBERS ONLY! No "well my combo is about the same as my buddies who made 9,000 hp". This is to give people a fairly accurate idea of what different combinations will make, so let's not muddy the waters with estimates please.

Ready....GO
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Old Jun 15, 2018 | 11:07 AM
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Horsepower/Torque @ RPM: 438hp@5400 / 509tq@3800 rear wheels

Engine specs: (displacement, heads, intake, cam, power adders, etc...)
496 BBC, Edelbrock E-Street Heads, Repo LS6 intake, Straub roller conversion .050” Duration 229/235, Lift .590/.559, LSA 107

Transmission: (Th400, T-10, T-56, 700r4, etc...)
Autogear M23W, the works. 3.36 Gears.

Type of Dyno: (Dynojet, mustang, etc...)
Not sure, not a Dyno jet.

Elevation: (Density altitude)
Sea Level




Last edited by ddawson; Jun 15, 2018 at 11:08 AM.
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Old Jun 15, 2018 | 05:15 PM
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Mustang dyno with correction factor applied.
Attached Images

Last edited by resdoggie; Jun 23, 2018 at 08:21 AM.
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Old Jun 15, 2018 | 06:36 PM
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VortecPro 496, 10.0-1 comp, GM iron 049 oval ports, Isky 238/248* hyd roller, RPM air gap w/1" spacer, 850 DP, 2" dyno headers.








Its actually out of the car now after 24k miles of HARD service...now for some updates, hoping for a bit more power on version 2.0....

Last edited by ajrothm; Jun 15, 2018 at 06:38 PM.
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Old Jun 15, 2018 | 06:59 PM
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Default 541ci Aluminum DART BB





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Old Jun 16, 2018 | 02:31 PM
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My 383 Stroker Motor dyno'd 492Ft Lbs Torque at 4900rpm..and 525HP at 6200 rpm.. coupled with a built up 700r4 OD Trans and 3.73 rear gears
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Old Jun 22, 2018 | 09:50 PM
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Default GM ZZ4 Crate Motor built over 15 years ago & still running strong

Engine
ZZ4 with GM's LT4 HotCam & 1.6 rockers
Home ported heads with Manley race flow valves
Manley valve springs & retainers
AFR's rev kit
650 Demon Mech. Secondaries

Driveline
5 Spd Richmond Manual Trans
3.08 stock rearend

Performance
1/4 mile =12.8 sec at 108 mph
60' time = 1.9 sec



IMG 0789

Last edited by Jason Staley; Jun 22, 2018 at 09:53 PM.
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Old Jun 23, 2018 | 10:51 AM
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350, TFS heads 218-224 HR w/1.6 RRs.
True dual ex, H pipe, RH ex man.
AG w/650 Demon

280 rwhp
315 rwtq
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Old Jun 25, 2018 | 05:05 AM
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465/465 engine went a bit too rich from about 2500 to 3500 rpm. Have since reduced fuel for this part of the map but haven’t had it on dyno.

427 small block, comp cams 280 hyd roller cam, fabricated efi manifold, 42lb injectors, Fast xfi ecu.

Legend 5 speed transmission. 3.9 rear gears.

Dyno is a Mainline hub Dyno.
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Old Jun 25, 2018 | 07:30 PM
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Originally Posted by wabco40




465/465 engine went a bit too rich from about 2500 to 3500 rpm. Have since reduced fuel for this part of the map but haven’t had it on dyno.

427 small block, comp cams 280 hyd roller cam, fabricated efi manifold, 42lb injectors, Fast xfi ecu.

Legend 5 speed transmission. 3.9 rear gears.

Dyno is a Mainline hub Dyno.
That is serious power at the Rear wheels...NICE!
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Old Jun 25, 2018 | 11:17 PM
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Watching, very impressive numbers.
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Old Jun 26, 2018 | 01:16 PM
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383, this is the engine with the pistons that were ordered wrong so its running around 9:1 compression.
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Old Jun 26, 2018 | 01:58 PM
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Originally Posted by Knerf


383, this is the engine with the pistons that were ordered wrong so its running around 9:1 compression.
Is this on a chassis dyno or engine dyno?
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Old Jun 26, 2018 | 05:50 PM
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chassis
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Old Jun 27, 2018 | 08:15 AM
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Originally Posted by Knerf
chassis
Wow, those are pretty dang good numbers for a 383 with that low of compression. Are you running auto or manual transmission?
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Old Jun 27, 2018 | 09:14 AM
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manual, hopefully this winter when the driving season is done i can get the proper pistons swapped in there, then ill have to post the new dyno numbers.
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Old Jun 27, 2018 | 09:39 AM
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Originally Posted by Knerf
manual, hopefully this winter when the driving season is done i can get the proper pistons swapped in there, then ill have to post the new dyno numbers.
Cool! What is the rest of the combo on that motor? Cam and heads?

350 to the tire from a basic 383 is respectable, especially though the IRS on the C3.
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Old Jun 27, 2018 | 11:26 AM
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Originally Posted by wabco40

465/465 engine went a bit too rich from about 2500 to 3500 rpm. Have since reduced fuel for this part of the map but haven’t had it on dyno.

427 small block, comp cams 280 hyd roller cam, fabricated efi manifold, 42lb injectors, Fast xfi ecu.

Legend 5 speed transmission. 3.9 rear gears.

Dyno is a Mainline hub Dyno.
That color is awesome!
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Old Jun 27, 2018 | 11:33 AM
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Blueprint Engines 496.
10.1:1 with aluminum heads
0.566” intake and exhaust with 242 intake and 248 duration
850 Holley with 2” headers





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Old Jun 27, 2018 | 12:24 PM
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Originally Posted by wabco40
465/465 engine went a bit too rich from about 2500 to 3500 rpm. Have since reduced fuel for this part of the map but haven’t had it on dyno.
427 small block, comp cams 280 hyd roller cam, fabricated efi manifold, 42lb injectors, Fast xfi ecu.
Legend 5 speed transmission. 3.9 rear gears.
Dyno is a Mainline hub Dyno.
Awesome numbers!
What heads are you running?


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