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QA1 settings... adding weight?

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Old Jun 7, 2008 | 05:26 PM
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Default QA1 settings... adding weight?

I'm heading out to the track tomorrow with my 2000 finally. I have a major traction problem right now. The car made 329RWHP and 341 RWTQ N/A with bolt ons and ran 12.20's with mid 111 MPH. I had little or no problem hooking. Mid 1.7 60's were average. I had the same SY 3500 converter and 3.42's.

Fast forward 3 years, I make over 100 more RWHP & TQ. I've added more suspension, etc.

My suspension consists of: !front sway bar, PA Racing mild steel tubular K, QA1's w/ 275# springs, BMR tubular SFC's, BMR adj. TQ arm set at -2, 21mm rear sway bar w/ poly bushings, BMR bolt in relo brackets, BMR LCA's set in lowest hole, QA1 rear shocks, BMR adj. panhard rod. The car is full interior, and full weight. Currently I have my front struts set on 4, my right rear set on 4, and my left rear set on 3. The tires I'll be using tomorrow are 255/50-16 MT DR's on 16X8 firebird wheels.

I have a SY 3500 converter w/ a 1.63STR, and 3.73 gears.

I'm thinking of adding 50-60 lbs of weight to the spare tire well. Any thoughts? Ideas?
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Old Jun 7, 2008 | 06:10 PM
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I wouldn't add any weight to the car. Try it like itis first, see what the car does. If it's spins right away, try loosening the front shocks up some, I ran mine last year with the fronts on 3 and the rears on 5lr 6rr with the best luck n/a off the footbrake.

With the control arms at that setting it should want to hit the tires pretty hard, I don't think you are in any danger of doing what I did (see sig pic) last time out, but add another 100 hp and you coudl have issues.

If the car hits the tires really good, and unloads a little ways out and spins, try moving the control arms up one hole. I tried mine with the arms in the hole you're using when I had the M6 and was cam only, and the car would hit the **** out of the tire, hook for 10 feet then spin every time. I put them back up one hole and it would spin a little off the line then go, which ended up working better (very little suspension to adjust abck then)
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Old Jun 7, 2008 | 07:43 PM
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my car worked very well with the fronts at 3 and the rears a 5LR 6RR. get a slick on that thing or a big radial
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Old Jun 7, 2008 | 09:47 PM
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Thanks guys, I added 45lbs to the car on the right rear and a full tank of gas. I still have the 275/50-15 Nittos on the car. The car leaves clean, but the tires don't hold for ****. They were lit as long as I held my foot in it. I didn't even go full throttle is the bad part. But, the car went straight and did unload the rear tires until I lifted. I'm going to throw the MT's on there and give my best shot tomorrow.

If it's all over the place - I'll try 3 in the front & 5 & 6 in the rears.

As for tires, I plan on going to a 275/60-15 this fall. My current tires are temporary.
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Old Jun 8, 2008 | 07:09 AM
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If you have a 15 inch rim setup, I'd highly suggest skipping the radial until you get the car sorted out, get a set of ET drags on there, at a minimum a set of 26x10.5x15's, they will be alot more forgiving until you have the suspension sorted out.

I'd try kicking the lcs'a up one hole too, having them way down like works for cars with no power, but you're making enough now so that's really not needed. Plus you have adjustable shocksto make it transfer too.

Try that, and try the shock settings I posted, see what that gets you. Drfinately ditch the nitto's, those tires for the track are useless.
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Old Jun 8, 2008 | 09:34 AM
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Yes i agree with JL ditch the nittos
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Old Jun 8, 2008 | 03:46 PM
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I didn't get a chance to mess with shock settings today, it was ungodly hot. The car left decent, but went sideways on the 1-2 shift both times.

I'm not a fan of slicks, and I drive this car a lot on the street. I think I'm going to move the LCA's up one hole as you suggested and play around with shock settings this fall when the weather cools off. I'll have 28" tires by then too.
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Old Jun 8, 2008 | 05:18 PM
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take the weight back out of the car. i have never had to put weight in it to make it hook thro thoes nittos out invest in a set of slicks for the track or a 28in tall MT ET sreet radial
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Old Jun 8, 2008 | 06:12 PM
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2 set of 275/60/15 Et radial's are a real good option don't get me wrong, I am just a firm believer that a full slick, is just the best possible option when it comes to consistant traction at the track.

Swapping the tires when you get there, as much of a pita as it is, is just sometimes the best route to take.


Try a set of m/t radials, and adjust those shocks, you probably can shop a 1/2 second off your ET's
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Old Jun 8, 2008 | 08:09 PM
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Yeah, the nittos were free, and are just a street tire for now. The car drives great in the rain with them. I raced on the MT 255/50-16's today. I wouldn't have wasted my time trying to run on nittos.

I'll most likely pull the weight out and move the LCA's to the upper hole for now and see how much it improves. Then start trying the different shock settings. I don't want to change too much at once. I already started a log of where everything is set and will make notes of changes in shock settings, tire pressure, etc.

Thanks again for the advice/suggestions. :
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