CLASS RACER FORUM - View Single Post - to all 85-92 efi racers

bill dedman · 10-04-2008, 06:06 PM

Jim,

Thanks you for your psychological analysis of my state of mind. For a "turbophobe," I have some strange habits.... my best car buddies here have a loosely-knit club that meets for breakfast every Saturday. The single thing about these guys that causes them to hang together is that they ALL drive and race turbo Buicks. They let me hang around because my car is a self-built, Vortech-blown Mopar ('72 Valiant, 360 Magnum.) I can probably outrun some of them... but, not all. Thirty pounds of boost is hard to get around...

Some set of friends for a "turbophobe," eh???

I know of two road race organizations whose sanctioning bodies require the use of telltale boost gauges on forced-induction cars in competition. There are probably more; I just ran across those two while surfing the 'net one day. Why do you think they require those?

Your Cimarron, and Bob Dennis's cars are VERY impressive, but they did it all without boost. Hard work coupled with excellent race-track savvy will get you there. A soft HP factor and / or, a cooperative index doesn't hurt.

But, these cars I cited can't ALL be under-rated, and running off soft indexes. Hard to believe that ALL o f those turbo cars' owners are that smart.... but, what's the ONE THING that can catapult an also-ran into an index-smashing STAR?

Increased boost...

That is why I am of the opinion that the boost levels in these cars are not what they were when they left the factory. And, they need to be. Normally-aspirated cars, as I have pointed out, only have the same sort of barometric pressure that was present at their SAE HP dyno pull to utilize at a race. Turbo cars make their OWN "barometric pressure." Or, at least, the pressure present at the back side of the intake valve.

To reiterate:
"Your inability to explain why two or three percent of the cars running Stock Eliminator (the turbo cars) should be earning over fifteen percent of the #1 qualifying slots at NATIONAL EVENTS" is telling.

These guys aren't Bob Dennis... They're not Jim Wahl... They are a varierty of people with one common thread: Unrestricted boost from their turbochargers.

I feel that needs to be fixed.

As an aside, I was going to turbocharge the motor in my Valiant, but there's not much room for plumbing under the hood of that A body, so I went the belt-driven route. Sure feels good, when the boost gauge starts its climb...

Have a good weekend!!!

10-04-2008, 06:06 PM	#60
bill dedman VIP Member Join Date: Feb 2002 Location: Conway, AR Posts: 1,739 Likes: 0 Liked 6 Times in 4 Posts	Re: to all 85-92 efi racers Jim, Thanks you for your psychological analysis of my state of mind. For a "turbophobe," I have some strange habits.... my best car buddies here have a loosely-knit club that meets for breakfast every Saturday. The single thing about these guys that causes them to hang together is that they ALL drive and race turbo Buicks. They let me hang around because my car is a self-built, Vortech-blown Mopar ('72 Valiant, 360 Magnum.) I can probably outrun some of them... but, not all. Thirty pounds of boost is hard to get around... Some set of friends for a "turbophobe," eh??? I know of two road race organizations whose sanctioning bodies require the use of telltale boost gauges on forced-induction cars in competition. There are probably more; I just ran across those two while surfing the 'net one day. Why do you think they require those? Your Cimarron, and Bob Dennis's cars are VERY impressive, but they did it all without boost. Hard work coupled with excellent race-track savvy will get you there. A soft HP factor and / or, a cooperative index doesn't hurt. But, these cars I cited can't ALL be under-rated, and running off soft indexes. Hard to believe that ALL o f those turbo cars' owners are that smart.... but, what's the ONE THING that can catapult an also-ran into an index-smashing STAR? Increased boost... That is why I am of the opinion that the boost levels in these cars are not what they were when they left the factory. And, they need to be. Normally-aspirated cars, as I have pointed out, only have the same sort of barometric pressure that was present at their SAE HP dyno pull to utilize at a race. Turbo cars make their OWN "barometric pressure." Or, at least, the pressure present at the back side of the intake valve. To reiterate: "Your inability to explain why two or three percent of the cars running Stock Eliminator (the turbo cars) should be earning over fifteen percent of the #1 qualifying slots at NATIONAL EVENTS" is telling. These guys aren't Bob Dennis... They're not Jim Wahl... They are a varierty of people with one common thread: Unrestricted boost from their turbochargers. I feel that needs to be fixed. As an aside, I was going to turbocharge the motor in my Valiant, but there's not much room for plumbing under the hood of that A body, so I went the belt-driven route. Sure feels good, when the boost gauge starts its climb... Have a good weekend!!! __________________ Bill Last edited by bill dedman; 10-04-2008 at 06:11 PM.