OK...So what is the "FBI" & what is the FBI 500????

[alnukem]

I don't know the answer, but I'm sure it's going be a trip!

[LGAFF]

FBI is just a reference to the large # of Zs and guys that do ZR-1 mods in the Chicago Area/IL.....Fast Boys of Illinois.....FBI..

[RICKYRJ1]

FBI 500 is a reference to their engine performance modifications (500HP) I beleive the number is really a bit higher The FBI is always looking to push the LT5 to even great heights of performance. A lot of R&D comes out of their garages. They are a great asset to our community.

[alnukem]

So, Are the FBI 500 mods secret????? I was reading around here & someone alluded to some porting "nuances", is this part of it?

[Paul Workman]

Originally Posted by alnukem

So, Are the FBI 500 mods secret????? I was reading around here & someone alluded to some porting "nuances", is this part of it?

The "500" package you mention refers primarily to the almost stock-bottom 350 block in combination with a set of basic porting paterns initially laid out by published model performance predictions produced by various flow dynamics tools.

But, it doesn't end there. Research and a healthy amount of experimentation guided by substantial practical expertise coming from certain FBI individuals having decades of racing - all blended together in a tight knit group that has been pushing the envelope of the LT5 for over a decade now.

Is there room for improvement to "the package?" Yes, and the process continues. For example, Marc Haibeck's recent announcement that his 500 package, due to some recently prooved nuances of his porting, is now pegged at 510 hp, and still produced from a stock-bottom 350 LT5 using stock cams!

Is there something that distinguishes an FBI 500 package from another? I think in a general sense - most definately! In a nut-shell, it would be "drivability" is one thing that stands out. In other words, the FBI built and tuned motors not only produce the power, but also defy the loss of low and mid-range performance that is often spoken of when it comes to porting (especially) mods. And why is that? Part of the answer comes from the fact the cams can be independantly timed; much effort has been expended on refining the cam timing issue - according to what produces not only hp gains, but retains low and mid range torque as well. And, part of the answer is knowing where to port, and where to stop (which extends to cam profiles, etc, as well.)

Are the paterns developed or is the technology vastly different from what others might develop? Perhaps not. (There is even a CNC program off of Pete's heads that is avaliable from Pete.) But, the LT5 is NOT an easy or cheap motor for the individual to experiment with. And, since the cost in time and money to develop the supurb package aka "FBI 500" package was largely at their own expense, you could hardly fault a Marc or Pete or Bob or Al or Kevin or Lee for holding some of their hard - won "nuances" to their collective chests. So, the answer to the "nuance" question is yes! The devil is in the details

Wanna talk about big inch FBI LT5s?? There inlies some truly inovative work going far beyond what some of the big names accomplished in the early days.

P.

[Pete]

The 350ci/500 would not be possible today if it wasn't for the FBI.
Today most tuners offer/have a 350ci/500 package.
Some of the info was given away some was stolen this is the reason for secrecy.
Before this one had to spend a lot of money to get 500hp package and go with a bigger motor (368ci)
Today a 368 is not worth, money vs gains.

A lot of money and time went into the research.
This was very risky research it would've been hi cost monentary wise if it didn't work since LT5 parts are very pricey.

Pete

[Fully Vetted]

Originally Posted by Paul Workman

And, since the cost in time and money to develop the supurb package aka "FBI 500" package was largely at their own expense, you could hardly fault a Marc or Pete or Bob or Al or Kevin or Lee for holding some of their hard - won "nuances" to their collective chests. So, the answer to the "nuance" question is yes! The devil is in the details

Wanna talk about big inch FBI LT5s?? There inlies some truly inovative work going far beyond what some of the big names accomplished in the early days.

P.

So, for us newbies, who is the core group that is here on this forum and what are your screen names so we know who we are talking to and recognize you on threads? I know a few but not all...

[WB9MCW]

[Meanmyz]

I have always loved the yellow ZR-1 picture in the 1994 Corvette brochure. This banner is exactly what I would like to see on our next Net Registry T-shirt!!! Can I say this again? My vote for the next shirt!!!

On subject, I cant wait until I can get the 350 500hp package. And yes, my car will be headed to Chicago!!!

Originally Posted by WB9MCW

[-=Jeff=-]

Originally Posted by Meanmyz

I have always loved the yellow ZR-1 picture in the 1994 Corvette brochure. This banner is exactly what I would like to see on our next Net Registry T-shirt!!! Can I say this again? My vote for the next shirt!!!

On subject, I cant wait until I can get the 350 500hp package. And yes, my car will be headed to Chicago!!!

Let us know when you will be here and we can try to schedule a pizza gathering too