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04-03-2008, 12:48 PM
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#1 |
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New Member
Join Date: Apr 2008
Posts: 4
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92 Formula / TB
I have a 92 Formula and I am putting in a new Holley TB dual 58mm.
Is there anything I need to be concerned about with adjusting any timing or computer info? I dont want to screw anything up! Please advise. Thank you! Jason W. |
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04-03-2008, 04:17 PM
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#2 |
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3rd Gen Tech Mod
Join Date: Jan 2007
Location: KC Kansas
Posts: 827
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Have you done anything else to the engine or are you bolting this TB on a stock engine?
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04-04-2008, 09:24 AM
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#3 |
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New Member
Join Date: Apr 2008
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Its pretty much a stock 5.0 TPI engine. The engine is brand new with less than 1000 miles on it. I have put a stage 2 chip on and increased the timing 4 points above stock.
I also put a new intake on. |
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04-05-2008, 02:19 AM
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#4 |
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3rd Gen Tech Mod
Join Date: Jan 2007
Location: KC Kansas
Posts: 827
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My main concern here is that a stock 305 or 350 even doesnt really need that big of a TB. A 52mm TB can support 750cfm which is more than a stock engine will need unless its turning high rpms. The only engines I have heard benefitting from that big TB were higher modified. I am afraid you might loose performance going that big without better heads, cam, exhaust and etc..
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04-05-2008, 10:24 AM
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#5 |
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New Member
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I forgot to mention that it does have a Flow Master 50 Series exhaust already on it when I bought the car. That problay wont make much of a difference with out the cam and heads. What do you recommend I use for a cam and heads?
Thanks for your help. This is actually my second 92 firebird. The first one was when I was a kid and didnt have the money to put into it. |
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04-05-2008, 03:37 PM
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#6 |
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3rd Gen Tech Mod
Join Date: Jan 2007
Location: KC Kansas
Posts: 827
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Heres a link to a thread about this exact topic. It should answer all your questions. You can see the setups the guys that are using a 58mm TB are using. The majority of it is saying a 58mm is just to much for a stock engine. Since you have a 305 I amnot sure heads and cam will be enough. Give this a read and see if it helps you.
What size throttle body? - TPI - Third Generation F-Body Message Boards
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04-17-2008, 07:22 PM
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#7 |
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New Member
Join Date: Apr 2008
Posts: 4
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Sorry not to get back to you sooner, it has been crazy at work.
Thank you for the information, it has been very help full. I actually found a really good book just on TPI intakes and F body cars that will help me a ton. There is actually alot you can do to these F body cars that will make a huge difference. It'll just take some money and time. Thanks again! |
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04-18-2008, 05:48 AM
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#8 |
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3rd Gen Tech Mod
Join Date: Jan 2007
Location: KC Kansas
Posts: 827
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No problem man I know about the crazy work life!! Good luck and let us know what you decide to go with.
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