New intank pump
01-25-2014, 09:40 AM
#1
Member
Thread Starter
Join Date: May 2002
Location: sweden
Posts: 260
Likes: 0
Received 0 Likes
on
0 Posts
Car: Firebid Cab-92/1989 TTA
Engine: 383 HSR TPI
Transmission: TH700r4
Axle/Gears: 4.10
New intank pump
Hi!
Need some advice,i am about to installa walbro 450 pump and its a little bigger at the bottom so any suggestion how to modify it best way ?
Need some advice,i am about to installa walbro 450 pump and its a little bigger at the bottom so any suggestion how to modify it best way ?
01-25-2014, 03:40 PM
#2
Supreme Member
iTrader: (7)
Join Date: Mar 2000
Location: Orange, CA
Posts: 5,674
Likes: 0
Received 106 Likes
on
65 Posts
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: New intank pump
Yeah...don't, that pump is way over kill for anything needed.
The regular Walbro is also way over kill (90 gals, per hr.)
The EP 381 AC Delco works best for up 450HP
The regular Walbro is also way over kill (90 gals, per hr.)
The EP 381 AC Delco works best for up 450HP
01-26-2014, 03:11 AM
#3
Member
Thread Starter
Join Date: May 2002
Location: sweden
Posts: 260
Likes: 0
Received 0 Likes
on
0 Posts
Car: Firebid Cab-92/1989 TTA
Engine: 383 HSR TPI
Transmission: TH700r4
Axle/Gears: 4.10
Re: New intank pump
Ok
The new stroker is built for 500fwhp,the fuelpressure drops to 20psi over 4500rpm and lean out.
So i bought a walbro 450 for E85 sense the engine is made for ethanol.
Could it be somthing else cousing that pressure drop ?
I have change filter,maybe the stealthram fuelpressure regulator.
I am alsoe going to install at airomotive fpr and a Y fuelrail split.
What can be wrong by installing as you say, a overkill pump ?
The new stroker is built for 500fwhp,the fuelpressure drops to 20psi over 4500rpm and lean out.
So i bought a walbro 450 for E85 sense the engine is made for ethanol.
Could it be somthing else cousing that pressure drop ?
I have change filter,maybe the stealthram fuelpressure regulator.
I am alsoe going to install at airomotive fpr and a Y fuelrail split.
What can be wrong by installing as you say, a overkill pump ?
Thread
Thread Starter
Forum
Replies
Last Post
Hotrodboba400
Firebirds for Sale
3
12-10-2019 07:07 PM