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1980 pontiac trans am question

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Old 05-09-2008, 03:16 AM
  #11  
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Default Re: 1980 pontiac trans am question

Originally Posted by pissnuts
better yet sell it and buy a crx
and put a 350 in it rwd ftw
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Old 05-09-2008, 03:20 AM
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Default Re: 1980 pontiac trans am question

O yea
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Old 05-09-2008, 04:26 AM
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Default Re: 1980 pontiac trans am question

the 305's (or chevy 5liter) was a terrible engine
i say that if you sold the engine complete with tranny
and then just got a junkyard bigblock from any of the big 3
like a 390,454,460 whatever you can find in the junkyard or craigslist that came out of a large truck or suv
(you might even be able to buy an older truck with a bigblock but rusty as ---- for $400-500 then take the engine and tranny and scrapp the rest and sell the 305 and odds are you will make money on the deal)

as for 13's i say if you get a good tranny and a $50 shift kit (like a turbo 350/400)
a nice bigblock (say 325hp and 365ft-lbs)
a 125shot of nitrous and some 10.5inch slicks and i think you would be suprized to be running between 11.3-12.5 depending on the engine and how bad it is
me and friend built a 5liter fox mustang that we tried to get in the 10's
ended up with an 11.43 and only made 4passes but it was a stock fox with 183k miles when he bought the car and total of buying the car and all the ---- to make it go fast was less than 2k, we just put on an ebay shift kit,nitrous,and some used slicks
he swaped the 5liter out about a week ago and threw in a ford 460 out of an old lincoln and threw on a 175shot plate and 10.5 inch slicks and it has a built tranny
he still has less than 5k in the car but it now runs 10.6's all day on spray and 11.2's on motor
he has plans of 4:11's trying to hit 10.5's on spray and 10.999 on motor but you never know
oh and the engine is stock except for a 232cam and edelbtock intake manny
it dynoed 341whp on motor (and 428ft-lbs) and on spray it made 572whp and 701ft-lbs (and with the spray it pulls to the 6500rpm the cam is made for, tho it makes peak power at 5400rpm and torque at 3600rpm)

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Old 05-09-2008, 10:13 AM
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Default Re: 1980 pontiac trans am question

lol why was the 305 a terrible engine? They don't make much power stock, but they will run forever. and ever. cornfuzed, you wouldn't look like such an idiot all the time if you didn't make such broad and definite statements about everything.
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Old 05-09-2008, 01:11 PM
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Default Re: 1980 pontiac trans am question

Originally Posted by EGgyLShatch
lol why was the 305 a terrible engine? They don't make much power stock, but they will run forever. and ever. cornfuzed, you wouldn't look like such an idiot all the time if you didn't make such broad and definite statements about everything.
dude show me a 305 that ran to 100k miles without blowing out a hg
or would rev past 5500rpm?

i know they suck i have worked on a couple, and it's not 195hp they were rated at it was 165hp but like 240ft-lbs
basicly they are a truck motor
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Old 05-09-2008, 08:32 PM
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Default Re: 1980 pontiac trans am question

Originally Posted by cornfuzed
dude show me a 305 that ran to 100k miles without blowing out a hg
or would rev past 5500rpm?

i know they suck i have worked on a couple, and it's not 195hp they were rated at it was 165hp but like 240ft-lbs
basicly they are a truck motor
You Sir are an idiot. I know of several.

Please stop posting and showing your ignorance.
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Old 05-09-2008, 09:35 PM
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Default Re: 1980 pontiac trans am question

Originally Posted by Ntrain2k
You Sir are an idiot. I know of several.

Please stop posting and showing your ignorance.
hey newbie, shut the ---- up you only have 21posts
just like at the six flags you must be... tall to ride the ride
if not just watch and shut the ---- up
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Old 05-09-2008, 10:24 PM
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Default Re: 1980 pontiac trans am question

#1, I've been here a hell of a lot longer then you.

#2, Your the newb from reading your posts.

#3, I have ---- more horsepower then you have ever built.

#4, that is all bitch. Now shut me the ---- up.
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Old 05-10-2008, 12:30 AM
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Default Re: 1980 pontiac trans am question

Just let him do a HMT setup and blow the 305 while he builds a smc or bigblock. Before the 305, 70-80k was decent before refreshing the motor, but again that's with carbs. Why don't you all stop bitching about if a 25yr old motor design in better than a 50yr old design and start brainstorming what he should use.

I vote for two 14b turbos, since they can give up 240whp on a D16 with moderate boost. They'd spool decent, be cheap, and will work fine if you weld dsm flanges on chevy shorty headers. I'd use a th350 or 400 if you can, get it rebuild w/converter & shiftkit for $300 total, and it will last a long time. As for fuel/ign, I'm clueless what works best on cars from the early 80's.
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Old 05-10-2008, 01:33 AM
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Default Re: 1980 pontiac trans am question

I'd rather find a couple garrett 42/48's for a cheap build. 14b's seem too small to me, but then again I've never had one.

And cornfuzed...
My friend's father's van has over 200k on the stock, never rebuilt 305.
My friend's monte carlo had a 305 w/~150k and a lot of raping before being swapped out in perfect health in favor of a built 350
and i know multiple other people w/305's that are perfectly reliable and high in miles.

They last forever because they are such low compression and make relatively little power for their displacement
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