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1988 with TBI needs to go

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Old 10-04-2015, 09:52 PM
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Default 1988 with TBI needs to go

Hey gang,
New to the group. Just picked up an 88 with 74k miles on the clock. It's super clean, almost like a barn find. Lot of friends have told me to stab an LS in there and call it a day. I'm not doing that. Going to keep it all Gen I. I've been out the build game for a few years and only just started hunting down the latest info. I want to throw the TBI in the trash can because it doesn't flow and it sucks. Looked at a few ways to inject it. I'm thinking Wieand intake and throttle body then add a Holley 950 commander. Thoughts? Ideas? Rants?
Thanks
 
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Old 10-05-2015, 12:01 AM
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I dont think a holly 950 is Gen1 . At 74k shouldnt be too much wrong with tbi. It will work good and flow over enough for that engine, if you know what to do with it.
 
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Old 10-05-2015, 10:54 AM
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Originally Posted by LeWhite View Post
I dont think a holly 950 is Gen1 . At 74k shouldnt be too much wrong with tbi. It will work good and flow over enough for that engine, if you know what to do with it.
Sorry, I didn't give all the information. I'm going to buy a crate short block with 9 to 1 forged bottom end, comp cams, AFR vortec heads 190s. The TBI is junk. It's going in the trash can when I swap engines. I am not going back with a replacement TBI either. The Wieand intake I spoke of is like a TPI upgrade. Post pictures later.
 
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Old 10-05-2015, 12:31 PM
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[QUOTE=88BlueBeast;655380]Sorry, I didn't give all the information. I'm going to buy a crate short block with 9 to 1 forged bottom end, comp cams, AFR vortec heads 190s. The TBI is junk. It's going in the trash can when I swap engines. I am not going back with a replacement TBI either. The Wieand intake I spoke of ishttp://http://www.carid.com/weiand/i...1E5hoCtKjw_wcB
 

Last edited by 88BlueBeast; 10-05-2015 at 12:32 PM. Reason: Spell check
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Old 10-06-2015, 10:46 AM
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WeiandŽ 7540 - Stealth RAM Series Intake Manifold

Don't forget to change out the fuel pump also. Sounds like a lot of money and work to get around a very reliable and easy thing such as TBI. Best of luck to you.

I have a modified factory TBI on a 327 similar to what you are going for. It doesn't start pulling until 3000rpm and so far the only thing I run out of is fuel. I have not got around to putting in the 454 injectors yet. I had the throttle body bored out to put in 48mm throttle blades from a TPI throttle body and raise the injector pods about .25". Of course some changes to the fuel and spark tables but it should be good for 350hp if I can get the fuel in it. Some day I'll make it to the dyno.
 

Last edited by TZFBird; 10-06-2015 at 10:59 AM.
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Old 10-07-2015, 08:41 AM
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I looked at the Ram Jet 350 crate. Makes pretty good power out of the box. I would have to change the cam and the heads just don't move enough air. So I started looking at building my own injected monster. The Holley system is a bit pricy at 2900 bucks. I think I'm going to rebuild my block. Going to nitrate the crack, shot ping the rods and stab new .030 slugs in there with the cam I want. AFR vortec 190 heads and the Holley system. And headers with true duals out, no cats. I think I should be good for a tick over 400hp and make all the bottom end torque I'm looking for. I will use my K5 off road but it will never be a mud truck. With what I've bench built in my head, cost should be around 5 grand. Sounds like a lot compared to a LS swap but I get to keep it all Gen I and nothing has to get moved.
 
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Old 10-07-2015, 07:52 PM
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Drop that pos tbi, but u can use the same engine and drop a carb on it with out doing the full swap if u wanted ,not sure how that engine is running wise. I still have the electronic fuel pump hooked up and pumping in to the carb
 
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Old 10-08-2015, 08:26 AM
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Originally Posted by RnB1987 View Post
Drop that pos tbi, but u can use the same engine and drop a carb on it with out doing the full swap if u wanted ,not sure how that engine is running wise. I still have the electronic fuel pump hooked up and pumping in to the carb
Runs like a top. I can tell it has a hard time breathing. These engines in stock form just do not have any real guts. Thought about tossing a carb on it and be done. Cheaper for sure. Cost is not my concern. All of my hotrod buddies are putting LS power in everything. It not that I don't like the LS, it's that everyone is doing it. I want to stay old school with a touch of new school. I agree with the TBI is junk. So are these stock heads... I fix!
 
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Old 10-08-2015, 11:40 AM
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The problem is not the TBI it's the cam... nothing from the 80's had power. Change out the cam and put a higher stall converter in and you'll be more than happy.
I'm running TBI on a 327 with Votrec heads, Comp XE268 cam, 1.6 rockers and Edelbrock RPM Air-Gap intake. I wish I knew if the TBI didn't flow enough air because the injectors cannot put out enough fuel.
 
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Old 10-08-2015, 07:08 PM
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glad you like it. Mine is not staying. The stock heads don't move enough air and the compression is too low to just slap heads and a cam in it.
 

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