BoostedGTA 2021 Super Stock

[TNREDEYE]

Not too shabby!!! Congrats. I think that's a good et for the da.
Mine's still mostly just sitting in the garage and making the occasional
cruise in and trip to pick up pizza or chicken.

 

[Mike Jesse]

I'm in the middle of data logging the pump gas tune with ZHtunes. Need a track outing and it looks like the 14-15 is it for the year. I'm down 42 lbs.

 

[BULL]

Haven't posted any updates in a while... Our weather in upstate SC is starting to cool off but still haven't had any great DA track days. Nevertheless, I did run a new best last week of 1.38/6.25/112! Gotta love this car, the only mods are E85 tune (with ID1300 injectors) and weight reduction with wheels/tires/front rotors!

Do you have enough data points to be able to say what you have gained from the rotor weight reduction?

 

[TNREDEYE]

^^^ rotor fetish.

 

[Rollieman]

That converts to a 9.8 in the 1/4 mile.
What's really AMAZING is it was in 2899 DA.
I can only imagine what it would do in negative DA with a pulley, spacer and IC Chiller !
Good work !

 

[BoostedGTA]

Do you have enough data points to be able to say what you have gained from the rotor weight reduction?

It's hard to say the difference on the rotors, but with my previous change from the Weld Ventura drag pack with MT's to the Billet Specialties drag pack with Hoosiers, it worked out to a solid 1.5 tenths in the EIGHTH mile (120 lbs of weight savings).

 

[BoostedGTA]

Hadn't posted any updates on this forum for a while... Thought I'd post how I ended the 2023 season last October. Goal for the car was to run a 6.teen eighth mile ET with the car being stock with an E85 tune/ID1300's. It was our last track night of the season, which also happened to be my birthday. A friend of mine was there running his Porsche 911 twin turbo S, which had been modified by AIM Performance with bigger turbos, etc. He made a pass early on and it was around 6.35 and I remember thinking to myself "wow this might be a good matchup". As it turns out, we got beside each other for the last pass of the night... I was already getting leery because it was almost 10pm and there was already dew on the car. Track was getting cooler too... I was worried that I wasn't going to get traction, and of course that would not be a problem for the AWD Porsche. I dropped my tire pressure a bit more and made sure to do a longer burnout. We lined up and I said a prayer "please let me hook"... Light turned green and to my surprise it HOOKED! Got my best 60' to date, 1.37! To make the race look worse, my friend in the Porsche was asleep when the light turned green I crossed the finish line and since I had my radio on I already knew my ET before getting the slip: 6.19 @ 113MPH (DA 1,886')! New best! What a way to end the season! My footage from the race is below, and if you want to see his version I'll post it below mine.

And my friend's perspective in the Porsche, he even gave me props at the end of his video:

 

[BoostedGTA]

Decided to pull the trigger on the Barth 900 package about a month ago. I already had an E85 tune with ID1300 injectors, which went a best of 6.19 @ 113 in the eighth (~9.6 quarter). The 900 pkg is a 2.78" upper with a 10% lower, dual BAP, mid pipes, thermostat, and adjustable idler. It made 946 rwhp on Barth's dyno! Couldn't wait to try it out at the track and I quickly learned that first gear was not going to work... at all. Didn't matter if I left from idle or tried to roll into it... and our track prep is usually pretty good. So I tried launching in 2nd gear and was pleasantly surprised! It should really haul once I get it dialed in! Results were 1.32 60' and 5.88 @ 118.8 mph! This is approx a 9.teen quarter based on other hellcat slips I've looked at! Barth says it will go 8's with a little more work and a 1.2x 60'.

 

[BoostedGTA]

Still working on that 2nd gear launch! Getting a little more consistent but the weather is heating up around here.

 

[Hpmaniac]

Careful running that much boost with the 2.7 blower, mine didn't look pretty inside after 1500 miles running same combo. I was making 22-23 psi. How much boost are you making?

 

[BoostedGTA]

Careful running that much boost with the 2.7 blower, mine didn't look pretty inside after 1500 miles running same combo. I was making 22-23 psi. How much boost are you making?

20-21 psi. I just ran what Barth recommended... even asked about changing the upper pulley size since you can change the rings but he said 2.78 and 10% is fine for this car.

 

[jonx96]

Always surprises me these places put a pulley combo like this as a standard package. Jokerz just made a post today saying no more warranties to people running certain packages with aggressive pulley combos.
8s are possible with that pulley combo. I went 8.88 with a 2.85 and 10 lower.

Also thats a lot of boost on the stock engine. Hopefully shift points aren't high and timing is low.

 

[GBLWRMR]

Still working on that 2nd gear launch!

For your 2nd gear launch, curious.. Are you leaving it in "D" - auto and using the paddle to hit "2nd", then allowing the trans to shift 3/4?

 

[vortecd]

Decided to pull the trigger on the Barth 900 package about a month ago. I already had an E85 tune with ID1300 injectors, which went a best of 6.19 @ 113 in the eighth (~9.6 quarter). The 900 pkg is a 2.78" upper with a 10% lower, dual BAP, mid pipes, thermostat, and adjustable idler. It made 946 rwhp on Barth's dyno! Couldn't wait to try it out at the track and I quickly learned that first gear was not going to work... at all. Didn't matter if I left from idle or tried to roll into it... and our track prep is usually pretty good. So I tried launching in 2nd gear and was pleasantly surprised! It should really haul once I get it dialed in! Results were 1.32 60' and 5.88 @ 118.8 mph! This is approx a 9.teen quarter based on other hellcat slips I've looked at! Barth says it will go 8's with a little more work and a 1.2x 60'.

3.09 in first gear at that power level will be hard to hook. We decided to work on a softer launch to be able to leave in 1st and stick with the 2.62 gears rather then switching to 3.09 and leaving in 2nd.

 

[vortecd]

For your 2nd gear launch, curious.. Are you leaving it in "D" - auto and using the paddle to hit "2nd", then allowing the trans to shift 3/4?

You can shift to 2nd and do it that way or with the tune in track mode it can be set at 2nd so you don't have to worry about it

 

[GBLWRMR]

You can shift to 2nd and do it that way or with the tune in track mode it can be set at 2nd so you don't have to worry about it

Love that option. Thanks!

 

[BoostedGTA]

For your 2nd gear launch, curious.. Are you leaving it in "D" - auto and using the paddle to hit "2nd", then allowing the trans to shift 3/4?

Exactly. Shifter in D, use the paddles to put it in 2nd at the line, then letting trans do the shifts...