Author Topic: Need Help with ADDING HORSEPOWER  (Read 9668 times)

WhItE_AnGeL

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Need Help with ADDING HORSEPOWER
« on: June 09, 2009, 04:55:02 PM »
i got a 1968 mustang. 289 eng v8. i got a holley carb n a edelbrok intake. i want more horsepower tho and i dont have the money to supercharge it at the moment. what small changes can i make to make my car faster

Soaring

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Re: Need Help with ADDING HORSEPOWER
« Reply #1 on: June 09, 2009, 05:05:07 PM »
Understand that speed costs money.  The more speed you want, the more money it will take.  About the only thing you can do right now that won't take you to the cleaners, but yet gain some HP.  An aluminum aftermarket intake manifold with a 4 barrel carb  with a cold air intake and some nice long tube headers with an X pipe feeding into dual mufflers.  Other than that, we are talking about a lot of money with new heads,  loping cam, flat top pistons, etc.  That 289 isn't worth it. 

WhItE_AnGeL

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Re: Need Help with ADDING HORSEPOWER
« Reply #2 on: June 10, 2009, 12:04:43 PM »
so basically a 289 engine isnt worth putting money into? it would be better if i swap the enigne and put a 302 and super charge it right?

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Re: Need Help with ADDING HORSEPOWER
« Reply #3 on: June 10, 2009, 03:01:51 PM »
Well, the 302 is basically the same engine as a 289 as they both share the same block and many other internal parts.  If you want some serious HP you are going to have to step up to a 351.  There are a ton of mods you can add to it to include a blower. 

WhItE_AnGeL

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Re: Need Help with ADDING HORSEPOWER
« Reply #4 on: June 10, 2009, 04:00:33 PM »
so swap it to a 351 engine huh.. sounds like real power to me. i was thinking of putting a Spectre Performance Cold air Intake on da 289. do you think thatll be a good idea?

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Re: Need Help with ADDING HORSEPOWER
« Reply #5 on: June 10, 2009, 06:07:45 PM »
If you are going to keep the 289, then like I said before, putting a cold air system on it will increase Hp along with the other things I mentioned. 

zray

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Re: Need Help with ADDING HORSEPOWER
« Reply #6 on: June 10, 2009, 09:29:34 PM »
i got a 1968 mustang. 289 eng v8. i got a holley carb n a edelbrok intake. i want more horsepower tho and i dont have the money to supercharge it at the moment. what small changes can i make to make my car faster

it would help to know how much you can spend.

Z

WhItE_AnGeL

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Re: Need Help with ADDING HORSEPOWER
« Reply #7 on: June 11, 2009, 10:58:20 PM »
okay that sounds good. and im willing to spend about a grand

zray

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Re: Need Help with ADDING HORSEPOWER
« Reply #8 on: June 12, 2009, 06:57:52 AM »
okay that sounds good. and im willing to spend about a grand


Buy a set a AFR 165 aluminum cylinder heads. New they are about $1400.00 .  You might find a used set for under $ 1000.00  They are good for about 75 - 100 hp, even if you don't upgrade the intake or exhaust right away.

http://airflowresearch.com/articles/article051/A-P1.htm

http://www.airflowresearch.com/store/articles.php#SBF

Z.

WhItE_AnGeL

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Re: Need Help with ADDING HORSEPOWER
« Reply #9 on: June 12, 2009, 12:17:05 PM »
so that adds hp zray?

Soaring

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Re: Need Help with ADDING HORSEPOWER
« Reply #10 on: June 12, 2009, 03:08:57 PM »
I mentioned heads to you, but you didn't seem to have that much money.  What you are looking for to get that engine to breathe better.  If you start with the heads, you are going to have to add the intake and the headers and the exhaust system, or you aren't doing much good to add only the heads.  You are still restricting air flow. 

zray

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Re: Need Help with ADDING HORSEPOWER
« Reply #11 on: June 12, 2009, 11:16:34 PM »
so that adds hp zray?

yes, a set of AFR heads will give you 75 - 100 hp increase over the stock 289 heads.

WhItE_AnGeL

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Re: Need Help with ADDING HORSEPOWER
« Reply #12 on: June 13, 2009, 03:40:04 PM »
at the moment im going to start with the Spectre Cold air intake, then slowly move from there and proceed with the greater parts.

 

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