Engine not sitting straight, suggestions?
Burning Brakes
Joined: Mar 2002
Posts: 839
Likes: 0
From: Lewiston, Maine
Originally Posted by BigBlockk
1) To off set the weight of the driver for more even handling.
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These cars are made to carve canyons in the asphalt. The front to rear weight bias is right in the neighborhood of 50:50, which is ideal.
Another neat trick is to get your car corner-weighted, sometimes known as cross-weighted (also written: X-weighted). Since weight transfers diagonally along a chassis when road racing, the ideal setup is to have the weights of RF + LR = LF + RR. This is achieved by raising (increasing weight) or lowering (decreasing weight) a corner of the car depending upon the car's current state. You should be able to envision how slightly shifting the engine to the passenger side of the car, can help to offset a driver's weight, and thus make corner-weighting easier.
You need some kind of scale setup to find out what each corner weighs. My friend races an ITA prepared RX-7 so he simplified matters and bought a scale setup, though it's not the cheapest option. I have heard of people using geometry and typical bathroom scales. Maybe someone who is more familiar with this can chime in.
Le Mans Master
Joined: Nov 2004
Posts: 6,128
Likes: 21
From: North Alabama
Originally Posted by 1969Vette383
These cars are made to carve canyons in the asphalt. The front to rear weight bias is right in the neighborhood of 50:50, which is ideal.
Another neat trick is to get your car corner-weighted, sometimes known as cross-weighted (also written: X-weighted). Since weight transfers diagonally along a chassis when road racing, the ideal setup is to have the weights of RF + LR = LF + RR. This is achieved by raising (increasing weight) or lowering (decreasing weight) a corner of the car depending upon the car's current state. You should be able to envision how slightly shifting the engine to the passenger side of the car, can help to offset a driver's weight, and thus make corner-weighting easier.
You need some kind of scale setup to find out what each corner weighs. My friend races an ITA prepared RX-7 so he simplified matters and bought a scale setup, though it's not the cheapest option. I have heard of people using geometry and typical bathroom scales. Maybe someone who is more familiar with this can chime in.
Thread Starter
Advanced
Joined: Sep 2003
Posts: 99
Likes: 0
From: Plymouth MI
Just FYI, the passenger side got clipped pretty bad, not a direct head on. We replaced the whole front end with a one-piece deal instead of individual parts, so that's why there is a cut in the cowl. And yes, the front end is not completely aligned/attached yet, although I believe the engine would still look a little tilted even if the front end was properly installed.
What measurements should I have them take, and what numbers should I compare it to? I've already told them that this seems to be normal, and if anything additional needs to be done now is the time. We are trying to meet a pretty tight deadline, want to have it in the Detroit Autorama which is in the first few days of March, and need to have pics of the paintjob within the next 2-3 weeks.
What measurements should I have them take, and what numbers should I compare it to? I've already told them that this seems to be normal, and if anything additional needs to be done now is the time. We are trying to meet a pretty tight deadline, want to have it in the Detroit Autorama which is in the first few days of March, and need to have pics of the paintjob within the next 2-3 weeks.
Burning Brakes
Joined: Mar 2002
Posts: 839
Likes: 0
From: Lewiston, Maine
Originally Posted by Jclgodale3
WHAT???? So is the engine "cocked" or not?
