second_2_none

iTrader: (6)

I jumped up to a 200 shot from a 150 and improved a little, but not quit what I expected. I'm not sure if its normal or if I'm blowing through the converter. I think I am probably blowing through the converter or getting to much slippage, but I honestly dont know how to tell or what its like when it happens My best time with the 150 shot is a 1.43 60', 6.59@103mph, 10.40@128.76mph. With the 200 shot progressed, 1.49 60', 6.57@105mph, 10.32@131mph. I was spinning out of the whole, so I think with a little better track conditions I can get a 10.2x as it sits. But it only gained 2mph in the 1/8th and 4 on the big end. My converter is a PI vigilante 3600 single disk 9.5" stall. Do you guys think it is about right or that I'm blowing through the converter?

second_2_none

iTrader: (6)

I really need some help and opinions guys so I can send my converter in if I need to. Trying to get the car ready for this fall.

kmracer

iTrader: (1)

how much does the RPM drop each shift?

KC&97TA

iTrader: (1)

How similar are the weather conditions from when you ran the 150 Shot? NC has a pretty nasty climate swing from cool dry air to hot humidity. That .06 comeing off the line makes a difference as well, what it actually translates too on the far end could be .12

Call the Guys that tuned your Car, they're usally pretty helpful.

second_2_none

iTrader: (6)

I didn't look at the tac at the shift. Yeah I know it will run 10.2x's the way it sits when I hook up. It was actually way cooler and less humid than when I ran on the 150 shot. But I ran twice on the 200 shot and trapped the same mph both times.

dnkynrbk

iTrader: (34)

What plugs and timing are you running? What kit are you running. What was the bottle pressure? Was it a fresh bottle when you tried the 200? I would also call the stall company and see what they say about the stall. I have seen other cars do this and had to have the stall restalled.

tektrans

iTrader: (23)

tires spinning so the power is getting to the wheels. I HIGHLY doubt you are blowing thru a 9.5" converter at your power level-if anything you have too much converter.
You mentioned you progressed the 200 shot, was the 150 progressed? how are you bringing it in to the full shot? whats the delay etc?

BlackScreaminMachine

iTrader: (17)

^ Agreed.

I am no converter guru or anything but the more info you can provide the better. Launch videos or whatever you can provide will help others, help you.

second_2_none

iTrader: (6)

I don't have any vids. My converter company is on vacation, that's why I thought to ask you guys. I talked to the shop that tunes my car(rpm) and a couple other guys and they all said they don't think I'm blowing through it. I just wasn't sure if a 4 mph gain was normal or not. I ran twice with the 200 shot, one was the full shot out of the whole and the other was progressed. Both runs trapped the same mph. When I progresses the 200 hit it was for 70% for .7sec. It was on a full bottle at 975psi. I run br7efs plugs, I wanted 8's but rpm told me I would be fine with the 7's. Not sure the timing, I'd have to call rpm. The 150 shot was not progresses. I think I have answered all the questions. Let me know what you guys think or let me know if I'm leaving something out.

dnkynrbk

iTrader: (34)

What controller are you using? Wet kit or dry? I would get someone with HP tunners to log the run and post up the run if you can. Your trans is a 4l6oe right.

second_2_none

iTrader: (6)

I have a nitrous outlet progressive and wet nitrous kit with a plate. Yes I have a built 4L60E. Yeah my tuner said he will meet up with me and log a couple runs in a couple weeks.

buzz12586

iTrader: (17)

Picking up 4mph with 50 more horsepower sounds about right to me.

tektrans

iTrader: (23)

I was thinking the same thing but was back and forth on it. Additional 4mph, especially since it was progressed as opposed to the 150 shot makes sense to me. You can see the effect on the run with the slower 60' with the bigger progressed hit.
It's extremely difficult to diagnose when a car spins out of the gate.

You absolutely MUST manage the car out of the gate. That right now should be your ONLY concern before trying to figure out other issues.
What's your suspension set up? Tires? shock adjustments, tire psi etc.

second_2_none

iTrader: (6)

I have a lca's, relocation brackets, dragbar, tq arm, sfc's, front DA strange coilovers w/300lb springs, comp eng 3way shocks with stock springs out back, 28x10.5 stiff sidewall Hoosier slicks. 11psi before burnout. Front shocks are on 1 on the extension side, 8 on the compression side. 1 being full loose and 10 being full tight. I know I need better rear shocks but if the track prep is halfway decent they get the job done. They don't prep the track good unless it's for a class event. So on test-n-tune nights the track usually isn't that great.

tektrans

iTrader: (23)

I would say right off the bat the 300 lb springs are huring your weight transfer. Is this a full weight car?
Are you pulling those fronts up?
The stored energy in the springs is what gives the car that push up when you hit the throttle. I'd immediately switch to a softer spring up front, one that you have to crank way up to get the ride height you need. This will keep the weight on the rear tire and help control the tire spin.
I'm not crazy about those tires either but make 1 change at a time. Springs are cheap and easy to change.

second_2_none

iTrader: (6)

Cool, I've never heard or thought about the springs but makes since. I'll change those out next once I get my new intake on. I really appericiate the advise! So should I get some 275lb springs or even softer? The car is mainly full weight. I removed the front sway bar, front bumper support, windshield wiper fluid reservior, rear seats, and Jack and spare.

tektrans

iTrader: (23)

275's should do it. U still have fair amount of weight in the car so those springs will be cranked up nice.