I currently have a really solid drag car and I want to try Time Attack - Circuit Racing.

I only need, brakes, different suspension and some aero upgrades other than that, I don't think car will have issues, this is a solid build not a %100 dedicated drag car actually.

Anyways, before dropping another 10K to the car, I at least want to understand how fast Time Attack Evo's compared to cars such as; Ferrari 430/458 Challenges, 911 GT3 RSs, 911 CUPs or any other benchmark car.

775whp
2.0
67mm
No MIVEC
2400 pounds with track brakes, 18" wheels and suspension

If there is a potential, I can redo the turbo and engine in near future.

Thanks

 

Sure, properly prepped EvO's are very competitive TA cars. Are you not familiar w/some of our Hall of Famer's (Sierra Sierra, Nemo EvO, Professional Awesome, Tilton Racing)

Youtube those!

At my local track (AAA Speedway Fontana) some of our local semi-street driven EvO's lap at 1:46 to 1:48 which is extremely quick. Not many cars can run that pace

Keep in mind, the car is only part of the equation. To properly TA at those quick paces you must have the stones to carry that speed (its harder than many think)

 

Above is true.

Going 140+ in a straight line is very different than 140+ around a turn. I pussied out at 145 on the NASCAR roval at Cali.

 

^^^Yes, that turn 1 will certainly get your attention

 

To really get the use out of that power on the track you are going to need a lot of aero, braking, tires and most importantly seat time. When taking that to the circuit I would de-tune that to less than 500 until you've really gotten your seat time up. With good seat time you should be able to beat or keep up with a similiarly skilled driver in those cars you have mentioned. Good luck and welcome!

 

So how fast can I go around this sweeper with a concrete barrier 3 feet from the outside of it, could I do 105 and maybe catch it as it beaks away, will my aero keep me planted enough to do 110, can I afford to right my car off as I don't have a pro workshop to fix it.

 

Actually I did my research on those cars, especially on Tilton because this car gradually improved from off the shelf parts track car to a hardcore beast.

But I don't understand what made these cars are so fast by watching couple clips, Tilton tuned from top the bottom but there is no way to understand the relation between the mods and the lap time.

Tilton made 1:27.1 at 2012 on regular Voltex Cyber aero and 1:24.8550 at 2013 with the new aero package. I am pretty sure they did improvements all over the car but where did this 2.3sec came from? Maybe aero only gave the 0.3 and 2 second came from somewhere else ? Maybe aero gave them much more than 2.3sec but they might not be able to do a solid lap for the last 3 years.

Drag racing has much more linear relationship between the mods list and the time you dial in but track racing is much more complicated.

There is a chance that even Tilton Evo can't do lower than 1.30 without a rear wing, so even if you have the all the power, electronics and GPS based strategies, wing might be an upper boundary. Beyond that let's assume: at 1.50 level you don't even need a wing, at 1.45 level it will give 2 secs, at 1.40 level it will give you 3 sec and at 1.35 level a wing might give 5 secs to a wingless car.

That is what I am trying to figure out, boundaries and relationship between the parts list and the lap time.

Tilton Evo's Aero is currently $41,475.00, and I have seen 3 cars running this kit right now. This aero is more expensive than their transmission with paddle shift, suspension and brakes COMBINED. If people are willing to pay this much for a aero package, than there must be a reason for it.

I am not planning to buy 40K aero package, I just try to understand the concept.

 

I have troublereaching 100mph on Buttonwillow's Riverside sweeper....

OP: my opinion on builds isn't the most popular, but I'll share as a point if reference. My car is mostly stock and does really well. I don't have any aero other than a home made gurney flap. Sure the car would be faster with some, but I want to reach the limit of what I have first. That's just me.
If your car is at 750whp, its going to be a complete hand full. The power will be peaky, making it hard to modulate the throttle. That's really way more than.you could ever effectively use. You'll still have fun, just may not be as fast as you could be with less, useable power.
Just my opinion, though. Like I said, it's not the most popular, especially in the evo community LOL

Here is my build thread, in case you are curious. The original setup was good for a third place finish in the GTA Limited class, and I didn't even get in a hot lap, due to turbo failure. Small cams, small turbo, and no aero.

https://www.evolutionm.net/forums/project-cars-build-threads/726886-simple-06-evo-mr-build.html

P.S. You can't really figure "X mod will make me Y faster". Too may variables. You have to know how to set it all up and, most important: drive it. You have to find what works for you because some else's setup may not.
If I had full aero and three-way adjustable coilovers, I'd probably be SLOWER because I don't know how to properly tune them.

 

Glad to hear youve looked at our hall of famer's. Makes me a proud EvO owner when I see these examples laying down track times very few cars can touch.

The EvO has proven to be a real TA contender

I would recommend, in your case, to start tracking some HPDE's & get a feel for what it takes. Let your enthusiasm & expendable income guide you through the process

Ive been off the track for 2 years. My track day EvO was starting to lay down some very competitive lap times & the danger level was going up as well.

Not mention, my EvO was starting to look like a track car

 

Be a cool day if we could get you & letsgetthisdone to Fontana one day & lay down some WOT on the main straight

 

That course is on my to-do list after Sonoma, THill, and another MRLS trip.

 

fontana scca solo oct 30th