TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

4cylinder intake manifold

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Old 02-23-2004 | 12:08 PM
  #1  
lq9base's Avatar
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From: Columbus,OH
Car: '84 firebird/'87 RX-7 GXL
Engine: LQ9 iron duke L4/13B na
Transmission: 4sp auto/5sp Man
4cylinder intake manifold

I have an '84 bird with a 2.5L that I'm going to start performance work on this summer. The FAQ's said Edlebrock makes a TBI performer intake manifold for the iron duke engin.But...Edlebrock said they don't anymore. Anyone know of anyone who actually makes a performance intake manifold for this engin? Or when it comes time should I just port the stocker? Any info/links are appreciated. Thanks in advance. PS While I'm thinking about it...anyone make an upgrade for heads? Thanks again.
Old 02-25-2004 | 01:43 PM
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From: Rhome, Tx
mmmmm, the six cylinder in my berlinetta is bad enough, but your only running 4.... im sorry, i feel your pain. Honestly, i dont think anybody makes parts for that anymore, try a search on the boards. Also, http://www.cliffordperformance.com might have something. They make parts for inline engines.
Old 02-25-2004 | 09:03 PM
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From: chattanooga
Car: 91 RS
Engine: vortec 355 hsr
Transmission: wct5
Axle/Gears: bg3.27
put a turbo on it
Old 02-25-2004 | 09:04 PM
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by walterrao
put a turbo on it
How does this help him look for a TBI intake for his car.
Old 02-25-2004 | 11:09 PM
  #5  
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From: chattanooga
Car: 91 RS
Engine: vortec 355 hsr
Transmission: wct5
Axle/Gears: bg3.27
im saying instead of any other performace work, like an intake manifold, just stick a turbo on and its instantr power
Old 02-25-2004 | 11:14 PM
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by walterrao
im saying instead of any other performace work, like an intake manifold, just stick a turbo on and its instantr power
I know what you are saying and that is still no advice. We could have also said just ask john force for a motor. I think he is smart enough to realize what he "could do." Throwing a turbo at anything requires more than it implies. No flames intended just trying to avoid the easiest answer for any automotive problem.
Old 02-26-2004 | 12:44 AM
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From: clinton,tn
lq9, check this sight out. IRON DUKE

Steve
Old 02-27-2004 | 06:20 AM
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lq9base's Avatar
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From: Columbus,OH
Car: '84 firebird/'87 RX-7 GXL
Engine: LQ9 iron duke L4/13B na
Transmission: 4sp auto/5sp Man
Thanks guys! I really appreciate you all taking the time to try to help me out(even the turbo suggestion, though I do plan on staying N/A for reliability reasons). The fiero site didn't directley have links or anything, it did mention gm's "super duty" program for the duke. Searching for that I was able to find heads that were made for it, and an intake manifold. The thing is that the intake manifold is designed for a carburetor(very similar to the ones on the clifford performance site) and I want to keep the EFI(again for reliabillity and efficency reasons). Is it wise to try and addapt a TBI unit to a carb manifold? they're at www.flatlanderracing.com . click on(sorry my computer dosen't display websites right so I can't give a direct link) "gm performance parts(left side scroll down), then "pontiac v8 & superduty 4". On intake manifolds it's the first on the page. On heads there's two half way down & one at the end(aluminum's kindda expensive ). If anyone knows if the manifold will work with EFI please post. If not don't worry, I'll e-mail them eventually. Thanks again guys for all your help so far! :hail:
Old 02-27-2004 | 06:28 AM
  #9  
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Car: 90 454SS
Engine: 454 TBI
Transmission: TH400
Originally posted by lq9base

Is it wise to try and addapt a TBI unit to a carb manifold?
Oh yeah

Happens all the time.
Old 02-27-2004 | 02:05 PM
  #10  
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From: clinton,tn
lq9, I knew the Fiero site didn't have a lot of aftermarket pieces but it did show how someone could do some cheap or free mods. It also stated that the stock intake and exshuast wasn't all that bad. Your stock parts may not be the same as the Fiero's but they may be interchangable. Just a suggestion thats all.

Steve
Old 02-28-2004 | 06:13 AM
  #11  
lq9base's Avatar
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From: Columbus,OH
Car: '84 firebird/'87 RX-7 GXL
Engine: LQ9 iron duke L4/13B na
Transmission: 4sp auto/5sp Man
"Oh yeah Happens all the time"
SWEET!!! Thanks! Just what I was hopping to hear.
"Your stock parts may not be the same as the Fiero's but they may be interchangable."
Oh sh*t! Sorry, I should've been able to figure that out. Thanks Steve, I do appreciate it(and I am considering weather to spend the money or just port the parts). You all have been very helpful. Thank you sooooooo much.
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