Throttle Body Spacer?????
Throttle Body Spacer?????
So I was told that if I add a throttle body spacer to my lt1 that it will give me some horses.....If so what size spacer (how much thickness) and where do I order one.Thanks for the help
Re: Throttle Body Spacer?????
Throttle body spacer do add more horses, but you won't feel the diffrence. And you have too modify the throttle cable, And there is hardley any room for it! not worth it!
Re: Throttle Body Spacer?????
That's my motor and my spacer. The background on the use of that accessory was two-fold:
1. The Hogan manifold as delivered did not provide adequate space for the use of the stock throttle linkage mechanism and required moving the throttle body forward about two inches so that everything would clear. When I built that motor in 2002, the NHRA rules required a box-style plenum and expressly barred us from using a single-plane manifold with an elbow. More recently, NHRA has recanted that restriction and permitted a single-plane/elbow. This car, with this manifold, even though it is now almost 10 years old is still very competitive. I sold it about three years ago.
2. The motor is an LT1 solid roller motor built to meet NHRA Super Stock rules and it operates in the 8000+ RPM range. It seemed that there would be no downside to expanding the volume of the plenum since plenum volume at high RPM could conceivably be at a premium with a stone-stock throttle body. We machined the spacer in multiple units so that we could add or subtract length if we wanted.
Because of the clearance problems with the throttle linkage, the engine was never run without the spacer. It didn't seem to hurt to have it there. In 2004, the car set the NHRA record in SS/IA at 9.74, 135.80 with the motor in the picture that was built in my backyard.
c
1. The Hogan manifold as delivered did not provide adequate space for the use of the stock throttle linkage mechanism and required moving the throttle body forward about two inches so that everything would clear. When I built that motor in 2002, the NHRA rules required a box-style plenum and expressly barred us from using a single-plane manifold with an elbow. More recently, NHRA has recanted that restriction and permitted a single-plane/elbow. This car, with this manifold, even though it is now almost 10 years old is still very competitive. I sold it about three years ago.
2. The motor is an LT1 solid roller motor built to meet NHRA Super Stock rules and it operates in the 8000+ RPM range. It seemed that there would be no downside to expanding the volume of the plenum since plenum volume at high RPM could conceivably be at a premium with a stone-stock throttle body. We machined the spacer in multiple units so that we could add or subtract length if we wanted.
Because of the clearance problems with the throttle linkage, the engine was never run without the spacer. It didn't seem to hurt to have it there. In 2004, the car set the NHRA record in SS/IA at 9.74, 135.80 with the motor in the picture that was built in my backyard.
c
Re: Throttle Body Spacer?????
The real heroes around here are Injuneer and Shoebox. They're the ones who have the practical insights and keep the discussions between the fences.
c







hope you don't mine me reusing your pictures