Desktop Dyno help please
Thread Starter
Safety Car
Joined: Jan 2001
Posts: 3,990
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From: No longer a member
Desktop Dyno help please
I just picked up a 383 from a friend of mine, this is what I know it has in it so far, still getting more info but I thought this might be a good start to gauge what HP it might have. I'll type it just as it's written on the sheet. Forgive me if there isn't enough info to do this, I have little idea what most of the motor technical stuff means :jester THANKS!
383 stroker
350 bored .030 over
Balanced-Blueprinted- all chambers ported
Forged 400 crank w/balancer
Eagle 5.7 SIR rods
HV oil pump/15 shaft
Roller timing chain set
Speed Pro Coated pistons- 10.5 to 1
Moly rings/file fit
Comp Cams- .510 Lift/284-296 Duration (I believe it's an Extreme 284)
Crane Roller Rockers and pushrods (has 1.5 stamped on rockers)
Dart 2.02 Sportsman II heads
Advanced Engine Designs Holley 750 cfm carb
Edelbrock Performer RPM intake
I already know this motor has big brass nuggets as it came out of his 67 coupe, he's an old fart and said it was too much for what he wanted.
[Modified by C3 Shark Tank, 6:45 PM 4/13/2002]
383 stroker
350 bored .030 over
Balanced-Blueprinted- all chambers ported
Forged 400 crank w/balancer
Eagle 5.7 SIR rods
HV oil pump/15 shaft
Roller timing chain set
Speed Pro Coated pistons- 10.5 to 1
Moly rings/file fit
Comp Cams- .510 Lift/284-296 Duration (I believe it's an Extreme 284)
Crane Roller Rockers and pushrods (has 1.5 stamped on rockers)
Dart 2.02 Sportsman II heads
Advanced Engine Designs Holley 750 cfm carb
Edelbrock Performer RPM intake
I already know this motor has big brass nuggets as it came out of his 67 coupe, he's an old fart and said it was too much for what he wanted.
[Modified by C3 Shark Tank, 6:45 PM 4/13/2002]
Thread Starter
Safety Car
Joined: Jan 2001
Posts: 3,990
Likes: 0
From: No longer a member
Re: Desktop Dyno help please (QuickVet)
QuickVet,
Many thanks for the help! Was there anything I forgot that might have boosted the HP numbers? If it matters any I have a 700r4 and 3:54 rear. 398 isn't bad but I thought it would be a bit higher, although anything is better than the original 190 :D
Many thanks for the help! Was there anything I forgot that might have boosted the HP numbers? If it matters any I have a 700r4 and 3:54 rear. 398 isn't bad but I thought it would be a bit higher, although anything is better than the original 190 :D
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Re: Desktop Dyno help please (C3 Shark Tank)
That DD2000 graph was run with the listed sportman cfm levels. You stated porting. so they might be 30-50 hp higher. DD2000 is very biased towards big CFM flow on the exhaust side. Sportman heads have sub 200 cfm E flow numbers. So porting with multi angle or swirl polished valves can boost the numbers by allot:)
