Have the "old" issues with FI been solved....?
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Joined: Nov 2001
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From: Raleigh, NC
Have the "old" issues with FI been solved....? The past few weeks I have been reading about lots of good results with centrifugal blowers (and roots blowers for that matter) on stock internal LSx engines. The first was a bone stock '03 Z06 that put down 550 RWHP through manifolds and cats procharged @ 7psi with 38# injectors . The second was a high mile F-bod that is posted in the internal seciton of this board (~530 RWHP @ 8-9PSI). I also read lots of good results over on the corvette forums about Magnusson roots blowers on vettes.
I do not visit the FI section very often, but I am wondering, have these cars become more reliable with FI setups? I used to remember reading about heads lifting, blown headgaskets, and busted pistons back in the day....Even with low boost levels. Maybe all of the good LS1edit tuning has made blowers more safe in LSx applications?
TIA,
-Nick
I do not visit the FI section very often, but I am wondering, have these cars become more reliable with FI setups? I used to remember reading about heads lifting, blown headgaskets, and busted pistons back in the day....Even with low boost levels. Maybe all of the good LS1edit tuning has made blowers more safe in LSx applications?
TIA,
-Nick
Thread Starter
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Joined: Nov 2001
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From: Raleigh, NC
Originally Posted by cablebandit
ls1edit haS helped A lOT. Plus everyone knows what fueling works. Grab a walbro 340...some svo 42# injectors and ls1edit and you are good to 575-600rwhp.
Hell if you could reliably get 500 RWHP through manifolds and cats @ 6# of boost just by adding an in-line pump, a vortech, and some 42#ers with a tune why would you do anyting else?
hehehehe, it's a bug that bites you and then it's never the same.
i remember when i thought 500 rwhp was something godlike, and now i get depressed if my car dyno's around that!
i remember when i thought 500 rwhp was something godlike, and now i get depressed if my car dyno's around that!
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and you get to greedy 
First off, centrifrugal setups have been making power and running decent numbers for a few years, it's just that these kits typically put out 450-500rwhp in stock form, and some of the hardcore folks on here have been pushing the envelope.
Thread Starter
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From: Raleigh, NC
Originally Posted by Pro Stock John
First off, centrifrugal setups have been making power and running decent numbers for a few years, it's just that these kits typically put out 450-500rwhp in stock form, and some of the hardcore folks on here have been pushing the envelope.
. Back when I started looking around on the LS1 boards (Early '99) waaayyyy before the LS1 edit days I remember people having lots of problems wit FI and these motors... All of my friends at the time were running blown Mustang setups (5.0L and 4.6L) so I was particularly interested in going blown.... I dropped the issue and started becoming intreagued with camshaft mods and big-bore setups.....
Now it seems the tides are turning, all of the latest results I have read with centrifugal blowers and stock internal LS1s and LS6s have been positive....There are quite a few people over on the vette forums that are running 500 RWHP through stock manifolds and cats (centrifugal )
. Also lots of people running Magnussons with good results (450 RWHP +) though I have never been a big fan of Roots blowers.