Suspension Tuning, Troubleshooting, Design and Discussion
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Jeff 4100
- Posts: 184
- Joined: Tue Jun 16, 2009 8:34 pm
- Location: Brazil
#226
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by Jeff 4100 » Thu Aug 12, 2010 9:39 pm
bracketracer wrote:Jeff, I may be wrong (I don't think it will be the first time
) but I would try and set the rear so when it's under power the shaft and pinion angle are straight or close to it...
Can you drop the engine in the frame??? Even if you can get it down some like an inch or two should help some..
Can you get some pic's from the side that shows the tailshaft/rear pinion??
Hey!!!
I set up the pinion with 1° lower than the driveshaft...but the engine angle does not help us...
I can not drop the engine because the oil panel that hit on the front frame suspension...but I'd have to rework the front suspension before...
It's a good trick for my car...not for the others...hahahha
I'll get the pictures on this weekend...
Ops!!!
I have a picture here that I got on our Drag site website...
Look your Buddy Jeff putting his hands on the oil!!!It's me there!!! hahaha
Check the engine angle...
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Jeff 4100
- Posts: 184
- Joined: Tue Jun 16, 2009 8:34 pm
- Location: Brazil
#227
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by Jeff 4100 » Wed Aug 25, 2010 9:32 pm
Mike Peters wrote:Jeff,
Pinion angle is always a topic that many disagree on. Here is a link to the method I think is correct -
Mike,
For now, as I have no money to buy a considerable order from AFCO, I found out a guy that has a Shocks Dino here. I wanna test a shock's setup from his machine.
For example, my car weights 2700 lbs. What load can I put on its front and rear shocks?? For the front I wanna 90-10 and 30-70 for the rear...but I wanna know what the load that I need to see on the graph...what is the relationship between the car's weight and the load of the shocks??
Thanks,
Jeff
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Mike Peters
- Posts: 930
- Joined: Wed Oct 12, 2005 1:48 pm
- Location: Wichita, KS
#228
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by Mike Peters » Fri Aug 27, 2010 7:55 am
Jeff 4100 wrote:
Mike,
For now, as I have no money to buy a considerable order from AFCO, I found out a guy that has a Shocks Dino here. I wanna test a shock's setup from his machine.
For example, my car weights 2700 lbs. What load can I put on its front and rear shocks?? For the front I wanna 90-10 and 30-70 for the rear...but I wanna know what the load that I need to see on the graph...what is the relationship between the car's weight and the load of the shocks??
Thanks,
Jeff
Jeff,
I leave the shock valving to the experts. It's fortunate you have access to a shock dyno. The dyno is going to show you how well the shocks respond to input and how they are valved. Here's a good article for you to read -
http://www.roehrigengineering.com/Techn ... 20from.pdf
"If winning was easy, losers would be doing it"
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Jeff 4100
- Posts: 184
- Joined: Tue Jun 16, 2009 8:34 pm
- Location: Brazil
#229
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by Jeff 4100 » Sat Aug 28, 2010 12:59 pm
Mike Peters wrote:Jeff,
I leave the shock valving to the experts. It's fortunate you have access to a shock dyno. The dyno is going to show you how well the shocks respond to input and how they are valved. Here's a good article for you to read -
Very good article about how the machine works...
But I'd like to know what would be the best graph based on my car's features...what would be the best forces to bound and rebound my car...
Is not there any rule for it??
Have you a nice weekend!
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Mike Peters
- Posts: 930
- Joined: Wed Oct 12, 2005 1:48 pm
- Location: Wichita, KS
#230
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by Mike Peters » Tue Aug 31, 2010 1:48 pm
Jeff 4100 wrote:
Very good article about how the machine works...
But I'd like to know what would be the best graph based on my car's features...what would be the best forces to bound and rebound my car...
Is not there any rule for it??
I don't think there's a rule for shock graph specific to a car's particular features, horsepower, weight, etc..... The graph shows the valving response to the movement actuation of the dyno. It can show you the shock's response to different movement speeds so you can better understand your tuning capabilities. It can show you what type of valving you have in your shocks - progressive, linear, or disgressive. Each valving has certain characterisitics in it's response.
"If winning was easy, losers would be doing it"
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