Question regarded fuel lines going from tbi to mpi/tpi/dfi whatever...

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Aug 30, 2001 | 10:13 AM

Chuck!

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Joined: Apr 2001

Posts: 1,342

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From: Dayton, O.

Car: 91 Camaro Z28

Engine: LS7

Transmission: M12/T56

Axle/Gears: 3.79

Question regarded fuel lines going from tbi to mpi/tpi/dfi whatever...

Are the stock lines large enough to handle the drastic increase in fuel pressure, volume, etc? I've just kinda always been curious about this...

Thanks!

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Chuck Kulchar
1991 RS
Open Element w/K&N
3" cat and Force II cat-back

Aug 30, 2001 | 10:38 AM

Omega

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From: Northern NJ

Car: 89 Formula / 09 G8

Engine: LS1 / LS3

Transmission: M6 / M6

Axle/Gears: 3:42 / 3:27

I am pretty sure the lines themselves are good for ~500 HP. The rest of the system is not.. aka the fuel pump, injectors and such.

Aug 30, 2001 | 09:57 PM

Chuck!

Thread Starter

Supreme Member

Joined: Apr 2001

Posts: 1,342

Likes: 14

From: Dayton, O.

Car: 91 Camaro Z28

Engine: LS7

Transmission: M12/T56

Axle/Gears: 3.79

Yea, the fuel pump wouldnt quite cut it

Ok, thanks. Like I said, Im not planning anything, but it was just like a nagging question in the back of my mind... I was afraid it'd cause an anurism or something

Sep 3, 2001 | 01:51 AM

91banditt2

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From: Cincinnati,Ohio

Car: 1991 BandittII Firebird

Engine: 5.7 HSR

Transmission: 700R4

Axle/Gears: 3.27 9 bolt

yeah your stock hard lines will be big enough.in 90 GM went with a 3/8's fuel line on all of the V8 f-bodys

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1991 banditt2 #130 of 600
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