BadAss SRT-Z - 2.4L / A568 - Update!!!

[Warren Stramer]

JT, If its not for sale would you at least let me drive your Z? you can drive the XE if you want.

[BadAssPerformance]

JT, If its not for sale would you at least let me drive your Z? you can drive the XE if you want.

Gee, thanks Warren! That may be the best compliment I've had

Are you sure tho? It might make you want to put a 5-speed in yours Hmmmm, maybe we can set something up at SDAC?

[Reaper1]

WOW!!!! That's a HUGE compliment!! I know for me personally there are only a few people on this planet I'll even hand the keys for mine to!

[SebringLX]

Cool deal.. How much boost?

I had it spiking around 23psi and falling to ~18psi most of last year IIRC... Tomorrow I am taking it to the dyno and going to try and tune it to hold 23psi with no more than a 25psi spike... not sure if I'm going to be able to do that with the WGA I have. I tightened it up all the way last night, so we'll find out tomorrow.

[BadAssPerformance]

I'll try to remember to bring a spare grainger or two...

[SebringLX]

I'll try to remember to bring a spare grainger or two...

Grainger?

[BadAssPerformance]

Boost controller

[SebringLX]

Boost controller

I have an EBC... Just didn't seem to be able to get it to hold more than 17-18psi last time I messed with it... the WGA that came with my turbo is ~10psi. Before I adjusted it, it seemed like setting 70% duty cycle on the EBC was max before it started freaking out. Hopefully with the WGA tightened as far as it will go, and playing around with the EBC on the dyno tomorrow I'll get it where I want it to be. If not, time to buy the 15psi WGA, but I don't have $110 for that right now.

[BadAssPerformance]

...and if that doesnt work, I can get up to 30psi out of these

[SebringLX]

...and if that doesnt work, I can get up to 30psi out of these

On a 10psi WGA?? I may be misunderstanding how these things work... but I was under the impression that you could only go as high as about double what the WGA is with any type of boost controller... Something like WGA spring + duty cycle = boost... So WGA with 10psi spring + 60% duty cycle should come out to ~16psi, etc.

[BadAssPerformance]

Is that a rule of thumb? The MBC is inline for the vacuum/boost source line to the WGA, so if you impede the boost signal, the WGA will stay shut longer...

[SebringLX]

Is that a rule of thumb? The MBC is inline for the vacuum/boost source line to the WGA, so if you impede the boost signal, the WGA will stay shut longer...

Pretty sure it is, or at least that's how it was explained to me. Don't think it would do me much good, EBC SHOULD be better than an MBC. I like being able to adjust the boost on the fly from inside the car. :P

[BadAssPerformance]

Pretty sure it is, or at least that's how it was explained to me. Don't think it would do me much good, EBC SHOULD be better than an MBC. I like being able to adjust the boost on the fly from inside the car. :P

True, but if the EBC solenoid cannot hold the pressure, then you wont be able to run the extra boost...

[BadAssPerformance]

Ran it 3 times at Grove today...

Run 1 - cold tires but did a decent burnout... opening weekend expected a bald track but it actually hooked ok! ... stock shifter re-installed, missed 3rd hard, lotsa grindage 15psi boost

R/T: .417
60': 1.782
330': 5.072
1/8ET: 8.223
1/8mph: 79.46
1000'ET: 10.781
1/4ET: 12.867
1/4mph: 108.44

Run 2 - Raced a realthy sounding Chevelle, figured I'd have to cut a good light, launched HARD, granny shifted 3 *no grindage!) and never saw the Chevy again 15psi boost

R/T: .035
60': 1.749
330': 4.904
1/8ET: 7.766
1/8mph: 90.26
1000'ET: 10.111
1/4ET: 12.114 (best ET on 15psi for this setup)
1/4mph: 112.34 (best mph on 15psi for this setup)

Run 3 - decided to turn up the boost, put in grainger previously set for 24psi... ran 24psi thru third and 26 in 4th... Launched hard again, but spinning like hell, was in left lane, left tire got out of the groove spun thru 3rd with steering wheel turned clockwise 90° *eek* hooked in 4th... This woulda beena damn good run in the groove!

R/T: .127
60': 1.785
330': 5.220
1/8ET: 7.865
1/8mph: 95.60
1000'ET: 10.082
1/4ET: 11.942
1/4mph: 122.08

It was getting colder out, the TONS of street cars were tearing up the track... Gotta check it out and get back out

[airagitated]

Nice times JT!

[SebringLX]

Nice! Wish I could have made it.

[butchsuppe]

Cool!!!

[WickedShelby88]

Way to show the Chevy owner how its done

[Turbo3Iroc]

Nice runs, #2 is very good for only 15 psi!

[2.216VTurbo]

Sweet MPH too Enough for 11:50's no?