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

Will my TBI setup work on aluminum L98 heads??

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Old Apr 27, 2001 | 11:05 AM
  #1  
Brian92RS's Avatar
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From: Wichita, KS USA
Will my TBI setup work on aluminum L98 heads??

I am looking at a 355 with aluminum L98 heads and a performer intake.

Will my tbi setup work with this? And if so, will I need to change my intake to a performer tbi??

thanks!
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Old Apr 27, 2001 | 11:12 AM
  #2  
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Tas
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yes TBI will work on this. If you don't want to mess with chips get the performer TBI, but if you want to mess with chips, get a single plane intake. That TBI intake would be good with a stock chip and more fuel pressure because the fuel and spark curve wouldn't change shape, it would just be greater. A single plane intake will need a modified fuel and spark curve to handle all the new upper RPM that engine would be seeing.

------------------
-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz

[This message has been edited by Tas (edited April 27, 2001).]
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Old Apr 27, 2001 | 11:42 AM
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From: PA
<font face="Verdana, Arial" size="2">Originally posted by Tas:
That TBI intake would be good with a stock chip and more fuel pressure because the fuel and spark curve wouldn't change shape, it would just be greater. </font>
That's not true. The stock 305 and 350 spark and fueling curves are different in shape and size. The stock WOT fueling falls off pretty quick after 4200rpms.
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Old Apr 27, 2001 | 11:48 AM
  #4  
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Tas
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the size is different but the shape is close enough to get away with a stock chip. i.e. Tim, NJ Speeder. Size can be booseted with fuel pressure. Its not a totaly different shape like how it would be with a single plane.

------------------
-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Soon to be installed:
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

Super GRK_Taz World
F-Body Dual Exaust
EFI & Intake Options
AOL IM: superGRtaz
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Old Apr 27, 2001 | 11:48 AM
  #5  
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Car: Turbo Buick
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any setup differing from stock is going to need a new chip. However, its much more dependent on CI and camshaft selection than what manifold you use
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