cfm on a stock 91 z28 5.0

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Jun 23, 2006 | 10:13 PM

fg_stadium

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cfm on a stock 91 z28 5.0

anyone know the cfm on a stock 91 z28 305?

Jun 23, 2006 | 10:52 PM

Green89IROC305

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From: Milford, OH

Car: 91 Z28 - using 87 electricals

Engine: 383 HSR EBL

Transmission: 700R4 - Stage 3 Fixed Pressure

Axle/Gears: GM 3.08 POSI

its like 650-750 i believe

Jun 23, 2006 | 10:52 PM

Orr89RocZ

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From: Pittsburgh PA

Car: 89 Iroc-z

Engine: 555 BBC Turbo

Transmission: TH400

Axle/Gears: MWC 9” 3.00

on what? the TPI intake itself? the runners and base or each individually? or the TB?

Jun 23, 2006 | 11:20 PM

fg_stadium

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the tb unit on a tpi 305

Jun 23, 2006 | 11:37 PM

Green89IROC305

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Joined: Jun 2006

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From: Milford, OH

Car: 91 Z28 - using 87 electricals

Engine: 383 HSR EBL

Transmission: 700R4 - Stage 3 Fixed Pressure

Axle/Gears: GM 3.08 POSI

like i said 650-750 on a tb with no maf its probably closer to the 750.

Jun 23, 2006 | 11:38 PM

fg_stadium

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is the maf removable? or does it have to be on there?

Jun 24, 2006 | 01:51 PM

Green89IROC305

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Joined: Jun 2006

Posts: 463

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From: Milford, OH

Car: 91 Z28 - using 87 electricals

Engine: 383 HSR EBL

Transmission: 700R4 - Stage 3 Fixed Pressure

Axle/Gears: GM 3.08 POSI

if your car cdame equiped with one (which it doesnt) than yes it needs to be there. 85-89 tpi motors were equiped with a mass air flow sensor(maf). 90-92 tpi motors were equiped with what is called a speed density system , this setup utilizes a map(manifold absolute pressure, i beleive this is what it stands for) and they have no need for a maf and thats probaby why they make 5 more horse power because the maf sensor restricts air flow a little.