Indy AirStrip attack 2019

[Rayme20]

So I will be attending the Indy AirStrip attack 1/2mile race Aug 17 and 18 at Marion Municipal Airport. I am wanting to do something small to beat my last year's speed and I am looking to the community for help. I have been working a lot and I have a little more than 2 weeks left. I currently have a 16 SHO with all bolt ons and LMS 100 Octane tune. What do you all recommend that I can get done in 2 weeks?

 

[Rayme20]

Anyone?

 

[SHOdded]

so you have CAI, 3bar, Tstat, downpipes, turbobacks, methanol, intercooler, turbos, H&Rs, trans mounts, all done? Then you can upgrade the tune. You can get exhaust cutouts. You can get better tires/practice launch techniques. You can choose to have some "weight loss" - vehicle and/or driver.

 

[SHOCH]

Man this last minute stuff never ends up good, just sayin’
Enjoy and make us proud.

 

[Rayme20]

I don't have meth or cut outs yet, does meth still help even with 100 octane? I haven't done turbo upgrade yet but figured I can't get that done in a couple of weeks.

 

[Rayme20]

I have continental dws06 tires. I also still need the upgraded intercooler. Any ideas brands etc.

 

[glockcoma]

Are you up to removing any interior pieces? I think you can loose some considerable weight taking out the seats ,speakers, etc.

 

[yamahaSHO]

Looks like fun. We just got done running The Blue Turd at Lucas Oil Raceway for Street Car Takeover.

There was a newer SHO there, burning a decent amount of oil.

 

[SHOdded]

Intercooler = Gearhead. Dunno if they have in stock ready to ship, but if they do, turnaround has been good.

Methanol octane rating is 115, IIRC. Sunoco might disagree tho
https://www.sunocoracefuels.com/tech-article/alcohol-and-octane

It can help cool the charge tho in the absence of a better intercooler, even if you do not use it for octane. If you install the GH intercooler, that point becomes moot.
https://www.ghtuning.com/product/2010-2018-sho-flex-performance-intercooler/


If I had to do any mods, this would be the one mod.

It even has a built in drain plug for maintenance!

 

[Rayme20]

I ordered the gearhead intercooler.

 

[Rayme20]

Anything else I can get done quickly?

 

[Rayme20]

Do I need to contact LMS to get a new tune for having the improved intercooler, or do you think having a 100 Octane tune will have enough timing to take advantage of it?

 

[SHOdded]

You can always optimize the tune further, but should not really be any pressing need, as the MAP sensors and the PCM will deal with the resulting changes. Unlike downpipes where airflow isn't monitored, o2 content is, thus requiring a tune update to be at its best.

That said, if LME will tune for this intercooler, why not! You can always revert back to the 100 octane tune pre IC if you dont feel comfy with the postIC version.

 

[PaulTAutoX]

I have continental dws06 tires. I also still need the upgraded intercooler. Any ideas brands etc.

For a half mile run, an intercooler will help your top end, as the heat will not build up as quickly which reduces the effective cylinder filling.

Tires will make a significant difference in your launch and how much power gets put down. It depends on how much you want to spend, and of course if there are any rules at the events you plan to run.

If you're willing to get tires for drag applications that are not daily drivers, then do that. Drag tires will help the launch and first gear traction. I'm not a Gen IV owner, but I assume that there must be some form of launch control available if you have a tune. With better tires, you may be able to tweak your launch control for more boost /revs at launch to improve that area.

An intermediate step is to get top end summer performance tires that you can't drive on in the winter, unlike your Conti's. If you look at the performance data at Tirerack.com you will see that the top Max Performance Summer and Extreme Performance Summer tires have significantly better dry braking distances than even the best Ultra High Performance All Seasons, the latter being where your DWS06's fall. Look at, say, Michelin Pilot Sport 4S, or BFG Rival 1.5S; you might have to change tire size from stock so go wider. Max braking traction is a reasonable stand-in for launch traction, it's just the opposite direction. Same comments, these only affect launch and first gear, launch control adjustments might help put the improved traction to use.

Whatever tires you get, put them on wheels that are lighter than your stock wheels. Wheel + tire weight makes a big difference, and the faster you are going the more the difference because the rotational momentum goes with wheel rotation rate squared. So weight here will affect performance in a half mile more than it does in a quarter mile. Depending on which "authority" you listen to, a pound saved on a wheel + tire is worth between 4 and 20 times a pound saved on non-rotating mass. As a general rule, the larger the wheel diameter, the greater the weight and the more mass that is carried further out, which are both bad things for rotational momentum built up. So pimpin' it up with 20's or larger is almost always detrimental to performance. Most wheel makers, and Tire Rack, have data on the weight of their wheels. You can spend $$$$ or even more on wheels, so depends on your tolerance. Wheels that are chromed are usually a sign that it's a heavy wheel designed for looks rather than weight/performance. Terms like rim rolling or forging usually mean more highly engineered wheels that are lighter, and more expensive especially for forged. But follow the weight rather than the terms. The lightest Enkei wheels in 18 or 19 inch sizes can weigh around 20#, while 20 inch and 22 inch of other brands can weigh 5, 10, or 15# PER WHEEL more. And stock wheels are usually built for durability and cost rather than weight savings, someone here probably knows what the stockers weigh. Hope this helps!

 

[yamahaSHO]

1/2 mile events are about speed, not the launch. Decent performance tires on a relatively light wheel is plenty for a street car of this caliber.

It's not uncommon for an OEM intercooler to actually shed heat better than an aftermarket, just not flow as well as an aftermarket. It's a balance in what you really need.

 

[SHOdded]

Come on, Jason, we need that SPEED at launch too! It may be a ship, but it's a ROCKET ship!

 

[Rayme20]

Honestly the dws06s grab really well. At a 2k rpm launch I see little to no wheel spin, just smashed back in your seat g-forces . I agree lighter rims are probably best.

 

[Rayme20]

Anyone within driving distance is welcome to join me at the race, but know ahead of time, it is not cheap. Spectators aren't bad but to enter a car
it's $250 per car per day or $450 for both days.

 

[Rayme20]

Got my gh intercooler installed tonight anything else, I can do, I still have some time

 

[Rayme20]

Thinking about rims and tires since the other guy was talking about weight savings, anyone have a good rim in mind that saves quite a bit of weight?