I run in a local Super Lap Series here in AZ and UMS Time Attack series in AZ and several NASA events. These series are based on Power to Weight ratio. I am also gonna run NASA TT next year aswell.

Currently my car falls into the highest class (class C.) Right on the edge mind you.

 

You could also send a brand new HTA GREEN to Owens Developements for a BB conversion that would be a better choice over the BBK FULL, if you have the money to do it. Around 700-800 for the conversion.

 

You'd be able to run ~600 whp in NASA and still be OK in TTU which is where you would fall at your 450 target (given a comp weight of about 3200)

Sounds like a fun project; the car looks sharp!

 

Yeah I will get killed in TTU.....I like to think I can out drive some of the bigger HP cars though

 

Only the ones that don't have pro drivers.

for any power to weight restricted class, you'll want the fastest spooling (often also the smallest) turbo that meets your whp requirement. You basically want the fattest, earliest hitting torque curve you can manage in order to make a nice flat hp curve for as long as possible, and you'll want to mate that up to the lightest possible iteration of your car.

l8r)

 

What are peoples thoughts on Tubular manifolds for Road Racing? Good or bad? I worry about prolonged heat on mani etc.

 

Tubular manifolds are fine, but not necessary. The cost to benefit ratio for the power level you are targeting probably doesn't make sense. If you already have the car gutted, getting caged, and are running wide sticky tires the best bet for your target is to go for a fast spooling stock frame turbo like the BBK-Full on E85. If you have the aero and the track experience to handle it, you could consider doing a built motor and a larger turbo. My car is also built for road racing, but right now I'm on pump gas and stock block which puts me just over 400 whp with a BBK-Full. Eventually I plan to build a 2.3L motor with a larger turbo (BBK-B, FP Black or EFR kit etc).

How do you handle E85 at the track? Do your local tracks offer it or are you trailering your own fuel to the track? I have local access to E85, but NJMP and Summit Point don't have E85 and I don't trailer the car right now so I've been hesitant to make the change.

Depending on the org the rules will put you in various classes. I know I have less body work than you do, but more other types of mods and would fall into the Modified Class for RealTimeAttack, but god only knows what class I'll fall into for NASA TT now. Probably a class with a lot of rough Corvettes.

I don't have my NASA TT license yet, so I've got a bit of time before I have to worry about it.

 

Where do you get your info and I suggest you start reading someplace else. Do you run any of those parts you suggested? Most likely not. You recommend a turbo that nobody runs and an intercooler that is way too expensive and performs just as well as my eBay core.

OP, I would go with a bbk full since that is the only bolt on turbo I have seen so far that hasn't prematurely failed on a bunch of cars. I made 427awhp on my stock ix turbo so you should have no problem hitting 450awhp on e85 with supporting mods.

Bbk + Garret core intercooler + injectors + e85 + bad *** tune =

 

I trailer my car to events (no longer street registered.) There is a E85 pump 5 minutes from my house. I carry several fuel jugs with me to events so that won't be an issue really.

Yeah my TT class is full of Vettes and Vipers..... I hold a NASA competition license but I usually run DE-4 and Time Attack. I def. need more power to hang with the Vettes etc.

 

I'm jealous of the trailer + fuel jugs... I plan to do the same next year, but we'll see. Honestly you might surprise some of those Vettes/Vipers if you get the power you are talking about. To be really competitive you will probably need a built motor at some point. Modified C6z06s are faaast.

 

Mate keeping mine street registered but doing what you are setting up for time attack is the goal.

Chad at CBRD is putting together my motor a 2.3, winberg crank cp pistons carillo Hbeam pro rods.
Running a BBK-B hopefully BB when Chad/Blouch finish testing.

Will be running s2's too, milspec throttlebody- intake manifold at this time will be a stock JDM one ported.

I plan to run a Buschur double pumper fuel system too.

Chad has advised me to switch to a 33RB kit for more power if needed, but I want to retain stock frame turbo for various reasons.

Intercooler piping radiator etc all fabbed by CBRD.


Edit * I will be running a toxic fab exhaust manifold custommade to fit the stock heat shield and heat coated.

 

Let me know if we can be of assistance-

I think CBRD has proven not to just "sell" product like some others out there-

we really like to make sure our products are the right solution for our client's needs--- hence why you will see that our customers are very satisfied

Cheers

CB

 

Toxicfab & CBRD ftw! Killer combo...I run a Toxicfab manifold on my car with a BBK-B turbo...

 

I chose the people I've decided on using for my build based on experience, service and quality- ie driveline all built by sheptrans, engine bay and engine/turbo CBRD , manifold toxicfab. Suspension is JRZ on Chad's advice.

Probably nearly double my budget during this build and taking twice as long , but, I think taking longer and doing right is worth more.

Stripping wieght front crossmember ams and tomei titanium exhaust and a custom titanium front pipe.

Still two months minimum froms stripdown and testing too. It's certainly financially and emotionally draining, but, without people like Chad at CBRD or John at sheptrans I'd be screwed by now.

 

Thanks Chad. I will be calling you very soon. Look forward to doing business.