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#1
10-02-2005, 01:22 PM
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horsepower upgrade
Well i have a problem guys, i am gonna rebuild my engine in my 86 camaro but it has a 305, now i would buy a 350 but don't really have the funds right now but my engine comes stock with about 160 HP and want to beef that up to about 250 or above. Now i know that the cam has a lot to do with it but does anyone else have any ides about what i can do to get my HP up that high?
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#2
10-02-2005, 01:45 PM
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http://www.goingfaster.com/spo/spo_t...y_central.html
Go there, theres alot of articles and such about what you can do to unlock the true hidden potential of your 305.
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#3
10-02-2005, 01:59 PM
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Re: horsepower upgrade
heads and cam combo is where u get the most gains without some type of bolt on. but i 4got u have a 3rd gen right? carb? im not to sure about those cars i never worked on one and dont really know anyone with one to help u much. im sure u will get something from others
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#4
10-02-2005, 04:28 PM
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Re: horsepower upgrade
I think a 86 is a 4 barrel. Definatly clean out or buy a new carb. I replaced the quadra-junk on my boat and now it runs alot better.
__________________
ASE Master Certified before the age of 20 Current Cars: 2001 Chevy Silverado 1500 Z71 5.3L 1996 Acura Integra LS B18 1.8L Past Cars: 1990 Buick Estate Wagon 5.0L 1987 Chevy S10 2.5L Tec Four 1995 Pontiac Grand Am 2.3 Quad 4 1996 Jeep Grand Cherokee Limited 5.2L AWD 1991 Ford Tempo L 2.3L 1992 Buick LeSabre 3.8L 1997 Buick Century 3.1L 1996 Lumina APV GT 3.4L 2006 Ford Escape 3.0L XLT
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#5
10-02-2005, 06:09 PM
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'86 was the first year of fuel injection, he either has a tpi or tbi...
silver is it a tbi or tpi?
__________________
 '92 RS lt1/t56, lt4 hot cam, 30lb injectors, 54mm throttle body, full exhaust, 4.11 posi, 4 coil ignition, alluminum driveshaft, adj rear suspension, low. springs, electric water pump, custom tune.
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#6
10-02-2005, 06:36 PM
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It's a TBI.. if it was a TPI it'd be rated at 215ish horsepower.
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#7
10-03-2005, 11:57 PM
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well in 86 they did a combo of feul injection and carb...some were one and others were the other, but mine is a 4 barrel quadra-jet feedback carb...piece of crap if you ask me...but don't really have the funds to replace it but once i do you better belive that i will...but thanks for you help guys and keep it coming i need all the pointers that i can get
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#8
10-04-2005, 03:15 AM
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1985 was the first year for TPI and it was rated at 215 HP, in 1986 TPI was derated to 190 HP. A carbed version was avialable through 87 and they put out anywhere from 140-190 HP.
That said...for real power a 305 is a waste of money and time to build up. You can get a used 350 block for around $250 (or less). 350 pistons are cheaper than 305's, The connecting rods will interchange, 350 cast cranks are CHEAP, might be able to get a used one in good shape even cheaper. The only "real" expense would be heads and again, you can get them used for pretty cheap.
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#9
10-04-2005, 08:45 AM
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Re: horsepower upgrade
Quote:
WHERE IN THE WORLD IS THIS!?!? all the junkyards around here want $500 for a 2.8!!!
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#10
10-04-2005, 08:57 AM
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Re: horsepower upgrade
I know, some junkyard's are ridiculous. $500 for a seized up motor, what the hell is going on.
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87 IROC - R.I.P, and she will never be forgotten  90 RS - The beginning of a new era... I hope.
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#11
10-04-2005, 02:09 PM
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Why the hell would someone want a 2.8? 3.1 is superior
 5 EXTRA HP!
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#12
10-05-2005, 06:39 PM
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no mine isn't a TPI it is just a standard 86 4 barrel carb with a 305, belive me i work on it all the time....but i just met this guy in amarillo that owns a machine shop and he said for about 1200 bucks he cout get a 350 block,heads,pistons....everything even the machine work..so i think that i will just go with that but if yall have anymore ideas that are better than that then just let me know my mind is always open for opinions and better ideas
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#13
10-05-2005, 06:42 PM
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Re: horsepower upgrade
plus y would you want a 2.8 or a 3.1....both are really crappy engines lol
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#14
10-05-2005, 07:31 PM
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Re: horsepower upgrade
Quote:
Just mod the 305, it has potential for what you want to do. Just compared to the 350, it has limits, its not a waste of time, you just have to know what your doing with it.
__________________
 91 RS Camaro V8 305 TBI cold/ram 14"/3" open element K/N filter 3.73's B&M Megashifter 180 thermostat Flowtech TERMINATOR Exhaust 3" exhaust cutout Silvania Silverstar Headlights Ronal R15 Firehawk Wheels Hankook Ventus Sport (front) Sumitomo HTR+ (rear) 275/40ZR 17 all around... _____________________________
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