97 4.3 needs power
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97 4.3 needs power - 8/2/2007 6:16:29 PM
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blazerboy124
Posts: 184
Joined: 8/2/2007
Status: offline
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i have a 97 4.3 that needs more power, any way i can free up some horse power? im looking for some good mods also. kind of short on cash at the moment but willing to wait. thanks
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Brett-
97 blazer LS
117,313
4.3L V6
posi.
towing package
Pioneer head unit
future mods:
t-bar crank 1.5"
2" shackles
2" body lift
33" tires
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RE: 97 4.3 needs power - 10/14/2007 1:46:18 AM
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thegr81
Posts: 2621
Joined: 1/16/2007
From: PHOENIX,AZ
Status: offline
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you want to free up some power well you can start by doing an electric fan set up which you can get at your local part store maybe you have an autozone nearby or checker another thing is either a k and n drop in filter or cold air intake, programmer, exhaust those you can start with.
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2001 2wd 4.3 vortec v6
"I'm not fat, I'm a minitrucker"
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RE: 97 4.3 needs power - 10/14/2007 5:50:25 AM
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blazerboy124
Posts: 184
Joined: 8/2/2007
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alright thanks.
_____________________________
Brett-
97 blazer LS
117,313
4.3L V6
posi.
towing package
Pioneer head unit
future mods:
t-bar crank 1.5"
2" shackles
2" body lift
33" tires
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RE: 97 4.3 needs power - 10/14/2007 5:52:06 AM
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thegr81
Posts: 2621
Joined: 1/16/2007
From: PHOENIX,AZ
Status: offline
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no problem anytime you need help just ask away and someone on the forum will be able to help you out with any question.
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2001 2wd 4.3 vortec v6
"I'm not fat, I'm a minitrucker"
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RE: 97 4.3 needs power - 10/14/2007 7:16:06 AM
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swartlkk
Posts: 14499
Joined: 5/1/2005
From: Waterloo, NY
Status: offline
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An electric fan will not free up enough HP to make it financially justifiable IMO as compared with the fan/clutch setup in the truck already... The only way that you could gain any appreciable amount of HP with an electric fan is if you were just to leave it off, but then you would overheat. The temp actuated viscous clutch on the stock fan setup is only working when it is required to cool the radiator. When cold, it is barely requiring any torque to move.
< Message edited by swartlkk -- 10/14/2007 11:21:04 AM >
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Kyle-
04 Rainier
My Restoration Projects
Please Do Not PM for Tech Help
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RE: 97 4.3 needs power - 10/14/2007 10:14:03 AM
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BigGreenMonster
Posts: 401
Joined: 8/11/2006
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Basic bolt ons, estimated price, expect HP gains...
Exhaust- $400-1000 depending on the setup.. Maybe 10hp
Hypertech power programmer- $300-400... YOU WILL NEED TO RUN PREMIUM FUEL-- 15hp
K&N.. not much point in spending the extra money for the whole intake, just get the filter. 50 bucks... 5hp
Underdrive pulleys- 100-200 (not my favorite idea in the world if you run high power stereo) 5hp-deep cycle battery would be a good idea $160
Probably the cheapest way to get power is to put your car on a diet. I assume thats out of the question, since you obviously like your Kickers.
Other than that, theres not much you can really do without engine building knowledge. If you want more grunt, you could go with lower gears in the rear end. Probably not a good idea, since Blazers are already pretty much all low end grunt.... Gear swaps don't give you more HP.. but you'll have more of a launch... with a lower top speed and you'll lose some fuel economy... You could probably get some more power with a good cylinder head porting job... not something to be done by a novice.
Addendum... Consider every 10HP gained to be around 0.1 second off your quarter mile time. Consider every hundred pounds taken off the vehicle as a theoretic 10hp gain.
< Message edited by BigGreenMonster -- 10/14/2007 3:57:07 PM >
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Don't tase me, bro!!!!!!!!
94 Blazer Tahoe w/ Vortec CPI- Flowmaster 40 series
'97 30th Anniversary Mercury Cougar XR-7
4.6 Modular V8 (no major modifications)
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RE: 97 4.3 needs power - 10/19/2007 6:27:04 AM
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blazinloud
Posts: 2425
Joined: 2/8/2006
From: Saskatoon, Canada
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or just grab the horns and do a turbo setup.....not a whole lot to do to these trucks
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RE: 97 4.3 needs power - 10/22/2007 6:41:01 PM
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blazerboy124
Posts: 184
Joined: 8/2/2007
Status: offline
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i dont want a turbo...i heard it kills the life of your engine..and im only 17 so i dont really want to murder it yet
_____________________________
Brett-
97 blazer LS
117,313
4.3L V6
posi.
towing package
Pioneer head unit
future mods:
t-bar crank 1.5"
2" shackles
2" body lift
33" tires
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RE: 97 4.3 needs power - 10/22/2007 9:33:26 PM
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TheBrettster
Posts: 1080
Joined: 7/3/2006
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Save up. Thats what I had to do to do a full rebuild and have it done right. I spent around 2200 for a full rebuild (cam, crank , bearings, trans) but did most of the work with a friend and myself.
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AAZK 4Lyphe
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RE: 97 4.3 needs power - 10/23/2007 7:10:18 PM
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Always Broke
Posts: 4
Joined: 8/7/2007
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"Hypertech power programmer- $300-400... YOU WILL NEED TO RUN PREMIUM FUEL-- 15hp "
I saw that the max energy needs the premium fuel but the PP III says that you can program both 87 and premium. How is it at the 87 gas setting?
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RE: 97 4.3 needs power - 10/24/2007 4:01:00 AM
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swartlkk
Posts: 14499
Joined: 5/1/2005
From: Waterloo, NY
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When I had my '00 Bravada and the PPIII, the 87 tune had a bit of detonation at odd times (ie. not always at WOT). I would have to run it on 89 to have the detonation go away. The Premium tune was good though with the 93 octane fuel available around me. I didn't think that the difference made it worth using the premium tune as the 87 tune with 89 octane fuel was a decent boost. I never did any long term testing though. All seat of the pants and data logging through my autoenginuity scan tool.
I liked the Hypertech for it's transmission shift algorithm changes.
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Kyle-
04 Rainier
My Restoration Projects
Please Do Not PM for Tech Help
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RE: 97 4.3 needs power - 10/25/2007 8:54:51 PM
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minijosh
Posts: 97
Joined: 8/3/2006
Status: offline
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I had the same questions too. Here's what I've done so far.
K&N filter
high flow cat
Gibson cat back system
It sounds great but I need more pick up. It will jump and squeel the tires and I have to be careful when punching it.
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RE: 97 4.3 needs power - 10/26/2007 4:09:06 AM
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nj4x4blaze
Posts: 1779
Joined: 8/5/2005
From: North Jersey
Status: offline
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Supercharge it then if you are looking for more power. Powerdyne makes a Supercharger for your truck.
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Dave- 01 blazer 4x4, 6" Superlift Kit,15x8 on 32''s and 20"x9" on 33''s,New Jersey Chapter
www.subsonickustomz.com
NJ,MI,IN,WI,IL,CO,MN,AZ,NC,
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RE: 97 4.3 needs power - 10/26/2007 7:13:19 AM
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BigGreenMonster
Posts: 401
Joined: 8/11/2006
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quote:
ORIGINAL: nj4x4blaze
Supercharge it then if you are looking for more power. Powerdyne makes a Supercharger for your truck.
You will get the same results you will get with turboing it if you don't forge the guts... A blown engine. A 350 swap really wouldn't be a bad investment if cheap horsepower is the name of the game.
< Message edited by BigGreenMonster -- 10/26/2007 7:16:23 AM >
_____________________________
Don't tase me, bro!!!!!!!!
94 Blazer Tahoe w/ Vortec CPI- Flowmaster 40 series
'97 30th Anniversary Mercury Cougar XR-7
4.6 Modular V8 (no major modifications)
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RE: 97 4.3 needs power - 8/14/2008 10:49:59 PM
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beatles6977
Posts: 3
Joined: 8/14/2008
Status: offline
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I have a 97 sonoma with the 4.3 Hypertec added a lot of HP and uses regular gas. First of all which 4.3 do you have there are two one is with the vortec heads and regular intake and the other is vortec heads and vortec intake. The difference between the two is one is a 4 bolt intake and that is a vortec intake and the other is a 8 bolt. Headers, exaust, cleaning the mas ( mass air flow senser) I used break clean to clean mine out. The type of oil that you use helps I use amsoil make sure you use it in the frount and rear on 4X4''s. My 4.3 runs at about 210 hp its a pickup want a be but the tires brake if i want them to. This is just a start I have a engine builder for marine engines that is going to be letting me know what else can be done. Will post that later.
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RE: 97 4.3 needs power - 8/15/2008 7:38:28 PM
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beatles6977
Posts: 3
Joined: 8/14/2008
Status: offline
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by the way I have realized that I said 4 bolts that is 4 bolts inside the outer 4 there are two intakes they are really 8 and 12 bolt
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