Initial QA1 Shock Setting For Heavy Car
I plan to hit the test and tune this Friday. This will be my first time out this year and I was wondering if you can offer some advice on what QA1 Shock settings to start out on
~3800lb car
N/A 402rwhp (not spraying this week)
might launch at 5k rpm's
M/T ET Streets on the rear, sportmans upfront
Solid end links in the rear etc etc etc.
ALL 4 shocks are the F-Series, 12-way adjustable QA1's
300lb springs upfront
stock springs out back
Thanks guys!
1 = full soft
12 = full stiff
I'm thinking 8/8 in back, and 2/2 in front. You don't want the stick car to unload the suspension after the initial launch, meaning you launch, front end comes up, and you want to keep that front end up.
Started 0 Front / 6 Rear and the car picked the front up but would then bog and unload (347 H/C NA) the best pass with still some bog was 3 to 4 Front 6 to 7 Rear (I don't have my notes handy). I need to adjust my LCA's and put the drag swaybar on and go back to test some more.
I might back it down when I start spraying off the line though..
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As far as the nitrous, where ever you hit the button at will be your peak torque and the lower you activate the more torque it will be, so even leaving at only 3,000 - 3,500 on the nitrous it's still going to pull good.
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it'll be my first time out with this setup and suspension...goina be a little scary pulling the trigger at 6k, but everything "should" hold!
Even if it does hook on the first pass it won't do much good if it heads for the wall lol.
what'd be a good rpm to start at? 4500 and then granny shift it?
4500 and keep on it?
I also have to figure where to start with the air pressure on the E/T Streets?? 11.50 x 28"
fronts are skinny sportsmans...where should those be? full?
I plan to hit the test and tune this Friday. This will be my first time out this year and I was wondering if you can offer some advice on what QA1 Shock settings to start out on
~3800lb car
N/A 402rwhp (not spraying this week)
might launch at 5k rpm's
M/T ET Streets on the rear, sportmans upfront
Solid end links in the rear etc etc etc.
ALL 4 shocks are the F-Series, 12-way adjustable QA1's
300lb springs upfront
stock springs out back
Thanks guys!

I have a similar car and set up......3880 with me in the car...408,m6.....I dump it off the limiter and it dead hooks, then bogs a bit and picks right back up.....28'' tire w/4.11's.........I'm going to 4.30's I think I don't have enough gear for the tires.....
qa1 r's on the front set at 1.........I think 5k is not enough......I don't spray so mine can fall a bit but we're working on that....tires 14lb....
I have a car that's 2865 with me in it. QA1's on all 4.
Not sure which the backs are on, it was extremely tight... I loosened it up and didn't really help anything. Now I'm on to the fronts.
I left them what they were from QA1 which is all the way loose, I took it 4 clicks to the tight side... Would you all think that's a good spot? I'm only getting ~1.31's, had a couple 1.2's but the car got that with 200 less HP. It was at one point picking the front end up, chirping the tires twice then laying back down. The car is barely lifting the front end which is very dissapointing







