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04-17-2011, 08:50 PM
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#1 |
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made in america
Join Date: May 2010
Location: baton rouge la
Posts: 653
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cammed 4.3 dyno numbers
so i cammed my 4.3 almost a year ago and have yet to get it tuned. well actually i cammed it, sold it, traded my tahoe for it back, and now tommorrow im goin down to have it tuned. ive never seen any dyno numbers for a cammed 4.3 so i figured id post them up when i get em. im lookin for at least 220 hp to the tires. should be over or almost 300 tq. results tommorrow
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2005 gmc sierra- 4/6, t56, cammed 5.3. 4.10, big bars, and brakes. sounds good 1964 c10-283 powerpack, 3 on the tree  2004 corvette- lowered, borla, tuned. slow  my old girl 1966 c10- 305v8, t-5 sold |
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04-18-2011, 11:11 PM
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#2 |
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made in america
Join Date: May 2010
Location: baton rouge la
Posts: 653
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Re: cammed 4.3 dyno numbers
i got it tuned by doc at efi alchemy. results.... well.... she put down 169 hp and 190 tq. i know right. alittle on the low side i think. so we started lookin around at it and came to the conclusion that one of my spark plug wires has got to be bad. they tuned a stock 4.3 with a cat back and it made 150. we even changed the plugs between pulls and that was 10 hp. lot left on the table. so im changing my wires, and headin back for some street tuning and more dyno tuning. we just ran out of time. they close at 8. i left at 9:45. even still the truck feels a TON better. efi alchemy is a great shop. doc is the man.
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2005 gmc sierra- 4/6, t56, cammed 5.3. 4.10, big bars, and brakes. sounds good 1964 c10-283 powerpack, 3 on the tree 2004 corvette- lowered, borla, tuned. slow my old girl 1966 c10- 305v8, t-5 sold |
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04-20-2011, 11:23 AM
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#3 |
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Registered User
Join Date: May 2002
Location: VA
Posts: 1,337
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Re: cammed 4.3 dyno numbers
What cam is in there?
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69 Chevy C10 88 Sierra 02 2500 Suburban And too many S10s to list! |
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04-20-2011, 02:18 PM
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#4 |
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Registered User
Join Date: Oct 2005
Location: Branchville SC
Posts: 1,647
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Re: cammed 4.3 dyno numbers
The numbers prolly arent far off. I wouldnt think you would gain much with just a cam change. Get some heads or have yours worked. THEN you will see some better number.
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2004 z71, 96 z71 on 38s, 88 Chevy k5 blazer, 4in lift. 84 swb project, 82 SWB project , 84 chevy 4x4 lwb project, 88 Jimmy beater/highschool ride. 79 c30. 99 tahoe 4x4 project. and a bunch of parts trucks.. |
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04-20-2011, 06:15 PM
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#5 | |
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Registered User
Join Date: Feb 2011
Location: S.L.C.
Posts: 227
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Re: cammed 4.3 dyno numbers
Quote:
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Im stright up ESL student........  fixin my truck a trip to the yunkyard at the time 94 s10 4x4 4.3/5speed (dd) 68 lwb GMC 350/4speed 52 5 window GMC I6/4speed 12v (8lugs and long bed) 53 bel air 235 I6/powerglide |
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04-20-2011, 09:17 PM
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#6 |
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made in america
Join Date: May 2010
Location: baton rouge la
Posts: 653
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Re: cammed 4.3 dyno numbers
the cam is 215/220 dur @ 50, 510 lift. 114 lsa. the problem with the heads is they dont really make any aftermarket ones. theres the vortecs wich i have, and theres some aluminum ones from gm that go for 3 grand. oh and some brodix. but they are pretty dern expensive too. i do plan on at least having the heads worked once i rebuild it down the road
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2005 gmc sierra- 4/6, t56, cammed 5.3. 4.10, big bars, and brakes. sounds good 1964 c10-283 powerpack, 3 on the tree 2004 corvette- lowered, borla, tuned. slow my old girl 1966 c10- 305v8, t-5 sold Last edited by 66redw/white; 04-20-2011 at 09:18 PM. Reason: more info |
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04-21-2011, 03:10 PM
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#7 |
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Registered User
Join Date: May 2002
Location: VA
Posts: 1,337
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Re: cammed 4.3 dyno numbers
Yeah, you've really got the best factory 4.3L heads... some port work would help. Any other mods?
__________________
69 Chevy C10 88 Sierra 02 2500 Suburban And too many S10s to list! |
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04-21-2011, 03:20 PM
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#8 |
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made in america
Join Date: May 2010
Location: baton rouge la
Posts: 653
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Re: cammed 4.3 dyno numbers
its also got underdrive pulleys, bigger throttle body without that stupid restrictor thing, full exhaust, cold air intake, shift kit, 373 gears, and a true trac. but basically just a cammed 4.3 with bolt ons.
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2005 gmc sierra- 4/6, t56, cammed 5.3. 4.10, big bars, and brakes. sounds good 1964 c10-283 powerpack, 3 on the tree 2004 corvette- lowered, borla, tuned. slow my old girl 1966 c10- 305v8, t-5 sold |
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04-22-2011, 08:03 AM
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#9 |
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Registered User
Join Date: May 2002
Location: VA
Posts: 1,337
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Re: cammed 4.3 dyno numbers
All in all, you've added 20% over factory though - pretty good for a computer controlled motor.
__________________
69 Chevy C10 88 Sierra 02 2500 Suburban And too many S10s to list! |
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04-25-2011, 07:18 PM
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#10 |
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made in america
Join Date: May 2010
Location: baton rouge la
Posts: 653
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Re: cammed 4.3 dyno numbers
i guess it aint too bad. but im still unhappy with it. im doin just a couple maitenance things to make sure its 100 percent and im headed back on the 30th. doin alittle bit of street tunning and 1 last dyno run. ill let yall know the final results
__________________
2005 gmc sierra- 4/6, t56, cammed 5.3. 4.10, big bars, and brakes. sounds good 1964 c10-283 powerpack, 3 on the tree 2004 corvette- lowered, borla, tuned. slow my old girl 1966 c10- 305v8, t-5 sold |
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04-30-2011, 11:06 PM
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#11 |
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made in america
Join Date: May 2010
Location: baton rouge la
Posts: 653
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Re: cammed 4.3 dyno numbers
173 hp 194 tq is the final.
__________________
2005 gmc sierra- 4/6, t56, cammed 5.3. 4.10, big bars, and brakes. sounds good 1964 c10-283 powerpack, 3 on the tree 2004 corvette- lowered, borla, tuned. slow my old girl 1966 c10- 305v8, t-5 sold |
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