Suspension Help - Vid
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Suspension Help - Vid I went to the track for the first time this year. Didn't have a very good day. 1.6x 60's all day. Launch above 5200 and it would pull the tires a little and then blow em off. Any lower on the rpm and it would bog. Tried the rear shocks at 4/5, 5/6, and 6/7 with out too much difference. Didn't change the fronts yet they are at 3, (I think). Psi from 16 down to 14 in 28x10.5 ET Drags. Didn't want to go any lower than that cuz it was dancing on the big end at 120. The slicks are about 50%, maybe I should try some new tires and put tubes in them.
Look at the slowmo, it hits the tires and then seems to unload
Anyone have anything for me to try?
Look at the slowmo, it hits the tires and then seems to unload
Anyone have anything for me to try?
Mine is doing the same thing but your 60's are a little better than mine. I'm interested to see what people suggest.
Gotta hit the tires hard, but doesnt that cause it to unload faster? I was told I needed to adjust mine to hit the tires even harder. So that theory may not be true. I don't understand it enough to know.
Gotta hit the tires hard, but doesnt that cause it to unload faster? I was told I needed to adjust mine to hit the tires even harder. So that theory may not be true. I don't understand it enough to know.
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I would try a pound or two of more air pressure. You are hitting the tire hard, it looks like it is wrinkling to much. I have found more air works better. If it starts to spin lower it in half pound increments. Good luck,keep use updated.
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Are your rear shocks single or double adjustable? Mine was doing that early this year. I was all over the place with air and three sets of tires. Had my 2 step set as low as 3200 trying to hook it. I have their (QA1) older shocks on the front that I had re-valved. Similar to Rs now, only the up-stroke is adjustable. I run them on zero on slick tracks, as high as 8 at places with killer track prep like HRP (Baytown) to help keep it off the bumper.
QA1 double adjustable rear shocks fixed it. Most of my 60's were in the low to mid 1.40s. I set the doube adj rears (24 clicks) to compression to 5 clicks, extention (rebound) to 23 clicks. Now goes 1.31 to 1.33 about anywhere. I could probably come off that 23 clicks some, but it works so well now that I havne't screwed with it. Will when I get some test time. The Nationals at Topeka my best was 1.35, but the DA was 4000' and that is not the best starting line around. Everybody I talked to (Super Street, Super Stock and Stock guys I know and visit with a lot.) were off in 60' there also.
Sure looks like you have the same problem I had.
Good luck, Ed
QA1 double adjustable rear shocks fixed it. Most of my 60's were in the low to mid 1.40s. I set the doube adj rears (24 clicks) to compression to 5 clicks, extention (rebound) to 23 clicks. Now goes 1.31 to 1.33 about anywhere. I could probably come off that 23 clicks some, but it works so well now that I havne't screwed with it. Will when I get some test time. The Nationals at Topeka my best was 1.35, but the DA was 4000' and that is not the best starting line around. Everybody I talked to (Super Street, Super Stock and Stock guys I know and visit with a lot.) were off in 60' there also.
Sure looks like you have the same problem I had.
Good luck, Ed
Hey Chuck. How is it going? Glad to see the car running again. Wish I could say the same for mine. Anyhow, I was having the same problem as you and you know my car is similar. I still think on those NA passes you should run a 26" tire but back to the problem. Try putting the LCAs in the stock location in the rear. Your instant center is off causing you to hit the tires hard and bounce back up. Mine was doing this with the LCAs at the bottom rung. Now I run the stock rung and hook every time (assuming good track conditions). Make the shocks in the rear about 80% hardest setting. I have the single QA1s all around and in the rear set them to 10 at the track and 1 in the front. Really lets the car sit back. Your car is lighter so maybe 8 or 9 in the rear would work. Also, do you have a big rear sway bar? Looks like you do as the car leaves pretty even. If not, run the pass rear shock all the way up. Give this a try.
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Verdad Gallardo hmm yeah... just noticed you had the lca's at bottom point... thats kinda like shorting the bar on a 4link... i'd move it back to stock and try again... it'll probably work better since it looks to be a decently fast car.
or leave it in bottom rung and make a bracket for your front mount on the LCAs and drop it down about an 1" or so... that would be the best bet....
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Going good except for this traction thing. Got the face plated trans in
. I also have a 4.56 gear sitting on the shelves in the garage. Want to get a good solid motor run in and then see how the 4.11 works on the spray.
What's up with your car? Still tracking down that vibration issue?
Thanks for the input. I think I am going to move the LCA's up next time out.
Get you car running - PSJ is talking about getting a group together for GLD...
. I also have a 4.56 gear sitting on the shelves in the garage. Want to get a good solid motor run in and then see how the 4.11 works on the spray.What's up with your car? Still tracking down that vibration issue?
Thanks for the input. I think I am going to move the LCA's up next time out.
Get you car running - PSJ is talking about getting a group together for GLD...
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Yeah. Been a bitch trying to figure it out.
If you are going to keep the juice, do not do the 4.56s. You will run out of gear on the 28s. I did this a couple years ago. Hit the limiter at the 1000' but still cracked 10s on a 100 dry hit. Just run 26s NA and 28s on the jug with the 4.11s.
I am dying to get to the track. But I am going to figure this thing out first. Don't want to cause any more damage.
If you are going to keep the juice, do not do the 4.56s. You will run out of gear on the 28s. I did this a couple years ago. Hit the limiter at the 1000' but still cracked 10s on a 100 dry hit. Just run 26s NA and 28s on the jug with the 4.11s.
I am dying to get to the track. But I am going to figure this thing out first. Don't want to cause any more damage.
What rear springs are you running? 6/7 is already on the stiff side, I'd try a little stiffer, keep the shock rate the same for each side, making each side the same should be done with the anti roll bar.
Try 7/7 or 8/8.
Try 7/7 or 8/8.
Unless you spun in that pic looks like you bogged to me.
I'd run the rear shocks stiff, like 8/8. Also do you have regular QA1's? The R's will keep the front end up which seems good to me.
Also maybe pm Rodney (Smokin01ta) he had the fastest M6 street car and he ran real consistent. He was going 10.2's cam only.
I'd run the rear shocks stiff, like 8/8. Also do you have regular QA1's? The R's will keep the front end up which seems good to me.
Also maybe pm Rodney (Smokin01ta) he had the fastest M6 street car and he ran real consistent. He was going 10.2's cam only.
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Thanks everyone for all the info, this is why I love "Tech" so much.
Brent, I think you're right about the gearing and tire size, I just need to get a couple of good runs to see where it is.
Ragen, V6 springs. It's got a Spohn Drag bar on it and leaves pretty straight. I went higher on the ps more as a "when in Rome" kind of thing. I will try anything once.
John, It did spin right after the fronts came up
Brent, I think you're right about the gearing and tire size, I just need to get a couple of good runs to see where it is.
Ragen, V6 springs. It's got a Spohn Drag bar on it and leaves pretty straight. I went higher on the ps more as a "when in Rome" kind of thing. I will try anything once.
John, It did spin right after the fronts came up
Thanks everyone for all the info, this is why I love "Tech" so much.
Brent, I think you're right about the gearing and tire size, I just need to get a couple of good runs to see where it is.
Ragen, V6 springs. It's got a Spohn Drag bar on it and leaves pretty straight. I went higher on the ps more as a "when in Rome" kind of thing. I will try anything once.
John, It did spin right after the fronts came up
Brent, I think you're right about the gearing and tire size, I just need to get a couple of good runs to see where it is.
Ragen, V6 springs. It's got a Spohn Drag bar on it and leaves pretty straight. I went higher on the ps more as a "when in Rome" kind of thing. I will try anything once.
John, It did spin right after the fronts came up