V6 vs V8 fuel pumps?
Thread Starter
Supreme Member
Joined: Aug 2002
Posts: 3,827
Likes: 1
From: Gainesville, FL
Car: 1988 Chevy Camaro Hardtop
Engine: Turbocharged/Intercooled 3.1
Transmission: World Class T5 5 Speed
V6 vs V8 fuel pumps?
What's the difference between the mpfi v6 and mpfi v8 fuel pumps? Other than $11? They look identical!
Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Both are the same working pressure, but the V8 one has a higher flow rate. I intend to swap a V8 unit into my car next time I drop the tank; the pressure regulator should be able to handle the excess flow.
Just make sure you don't order a V8 TBI pump... they only work at 15 psi.
Just make sure you don't order a V8 TBI pump... they only work at 15 psi.
Supreme Member
Joined: Oct 2001
Posts: 8,113
Likes: 6
From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Originally posted by pasky
What exactly do you mean by higher flow rate?
What exactly do you mean by higher flow rate?
just more flow.
Senior Member
Joined: Jul 2003
Posts: 692
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From: Bellingham, WA
Car: 1989 RS
Engine: 3.1L + .060" overbore
Transmission: 700R4
Axle/Gears: 4.11, Auburn LSD
DONT GET THE TBI PUMP.....I pulled the tank out 3 times trying to trouble shoot that one. And the last 2 times were with 5 gallons of gas in it. Make sure its MPFI!
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