ZR-1 Net Registry Forums - View Single Post

Bob Eyres · 01-31-2014

Mine was done by Jeoff Jeal, way back in the last century. The price was a case of "Old Speckled Hen" ale in the pit area at Beech Bend.
He and his boys drank the ale, cut the chip, and put it in just in time for me to line up for the last run of the day. By chance, it was my relatively stock 91' vs. the legendary "FastLane" Goldstein. In the first fifty feet he went by me with both front wheels a foot off the ground.
Marc Haibeck has the best reputation today for "off the shelf" chips. But a true custom chip for your car can only be properly done on a dyno. If you don't do it that way, you are leaving horsepower on the table. There is no way even the best tuner in the world can optimize the tune of your car unless he has the car in front of him.

Does anyone remember the name of the guy from Jacksonville who was a top ZR-1 dyno tuner twenty years ago? Jim...... something?
He was a former GM employee, and had a lot of the original tuning records from the development of the car.
I watched him dyno tune a 90' ZR-1 that had the top-end done. It took him all day to do it, but he pulled an extra 50 peak HP out of it. He cut at least twenty different chips before it was perfect.

01-31-2014	#109
Bob Eyres Join Date: Jul 2005 Location: Jupiter, Fl. Posts: 813	Re: Which Performance Chip do you have? Mine was done by Jeoff Jeal, way back in the last century. The price was a case of "Old Speckled Hen" ale in the pit area at Beech Bend. He and his boys drank the ale, cut the chip, and put it in just in time for me to line up for the last run of the day. By chance, it was my relatively stock 91' vs. the legendary "FastLane" Goldstein. In the first fifty feet he went by me with both front wheels a foot off the ground. Marc Haibeck has the best reputation today for "off the shelf" chips. But a true custom chip for your car can only be properly done on a dyno. If you don't do it that way, you are leaving horsepower on the table. There is no way even the best tuner in the world can optimize the tune of your car unless he has the car in front of him. Does anyone remember the name of the guy from Jacksonville who was a top ZR-1 dyno tuner twenty years ago? Jim...... something? He was a former GM employee, and had a lot of the original tuning records from the development of the car. I watched him dyno tune a 90' ZR-1 that had the top-end done. It took him all day to do it, but he pulled an extra 50 peak HP out of it. He cut at least twenty different chips before it was perfect.