The spacer that is located beneith the air cleaner assy.(besides a place to dump the crank case vapors) What is the purpose? It seems like all it does is restrict air flow by forcing the air to travel around the injector towers rather than alowing it to come in from all sides.

My girl friend has a '95 chevy 1500 w/a 305 TBI (is this an L03 too?) Anyway, i was looking at that spacer and it seem like it would run better with that thing gone. Do you guys usually remove this or keep it in?

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'83 Trans Am: 400 CID oil burning junkyard long block, 224/234 crane cam, Summit aluminum roller rockers, hand ported intake, home bored 2.09" (53mm) throttle bodies, MSD 454 injectors(75 lb/hr), Holley 255LPH fuel pump, custum modded FPR, Edelbrock TES headers, SLP 3" stainless steel cat back, stock ECM & chip. Borg/Warner T-5 World Class, 12" Corvette rotors and clipers, GTA 16" wheels, South Side Machine subframe connectors, 1LE sway bars, 3.45 ring and pinion, Alpine sound.
Best E.T. 13.532
Best MPH 102.24

 

to keep that nasty air from making it into the engine unobstructed
it's useless, buy a 3in flat base open element and ditch the thing.

lata
tim

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91 Camaro RS-LO3,Auto.
14.215@94.30 w/ 1.917 60'

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Thanks Tim, that's what I thought.

 

It's all in the name: It's only a spacer. I guess they had the air cleaner assembly from a different engine already, so instead of designing a new assembly to fit properly on the TBI, they just made a spacer.

 

theres some talk of "aligning" the air in a downward fasion.. thats why the aircleaner has a ring inside of it too.. makes throttle response just off idle better than for instance no aircleaner at all
however, the non drop base has a pretty decent radius to it just around the flange such that it doesnt obstruct so much friggen air while still providing a measure of an air radius. I think gm was just cheap in designing a decent aircleaner so they just crutched whatever they had to work and just give good off idle response which is really what customers feel on the test drive

 

It's junk that GM used to correct there design flaw in making the air cleaner assembly not specific to the TBI system.

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, Jon (91 RS too many mods to list)
Dale Earnhart, you have done so much, you will be missed.

 

10-4. Thanks.