Ridiculous

That's the Hell Fire. :lol:

Incredible car, I especially love the deep into the corner late braking that allowed you to stick it to the 911 both into and out of the corner. Fun to watch a 69 Camaro put the screws to the "benchmark of handling" lol. Absolutely amazing!

Luke

We had a great day at Gingerman. We ran five 15 minute session with no issues. My last session it was 68 degrees and the engine ran 191 degree water and 241 degree oil temp. No power drop off due hot engine.

We were hitting 150 mph down the long straight. The car is a bit tricky to drive because it will blow the tires off at 100 mph. The shift light comes on over the raise on the long straight. I knew I was lighting the rear tire then I could see the rubber marks on the track. It will also get into a high speed tire shake if you at too greedy on the throttle.

This car is 1.5 seconds faster at Gingerman than a 2014 Z/28 that I ran there earlier this year. So on the question is Hellfire faster than a Z/28 the answer is yes.

Overlaying the speed traces from Red Devil and Mayhem you can see the delta acceleration and deceleration. It is shockingly fast in a straight line.

Some idiot on a new GT3 would not give me a point by. I'm was all over him in the sweepers and he still would not give a point by. I finally just blew by him on the straight then slammed the door in the braking zone.

All in all a great day. I have never had a first outing as good as this one. We just beat on the car all day.

Mark

That's fantastic, Mark! Really glad to know the car is performing well for you. Good luck at SEMA.

Nice! Once fine tuned this could get entertaining. :thumbsup:

Love it.

As impressive as ever. Nice job by you and your team.

I guess when your on your 15th plus build you start to know what NOT to do as well as what TO do! Glad all went well Mark, can't wait to see how well you do in Vegas!!

THIS!!

One primary focus of Hellfire was to control fluid temps and avoid (if possible) or at least reduce power loss during lapping sessions. When making an effective 1100+ HP worth of heat rejection from the engine alone, then adding intercooler requirements (not to mention engine oil, trans oil, diff oil, PS fluid) - there is an incredible amount of energy to dissipate!

Mark's spent considerable effort maximizing the cooler(s) size and airflow - as well as consideration for fluid flow in systems in order to stand a chance of keeping temps under control.

And all calculations were based on prior power numbers of Mayhem (before we 'found' a few extra HP's lying around.....)

Interesting to note - Hellfire's temps on track are LOWER than what we dyno'd the engine at (we always try to run real temps representative of environment engine will operate). So even at end of lapping session, engine was still delivering at least the amount of power we measured on dyno.

As a back up plan (still a few days prior SEMA.....), we've always been curious about E85 in a Thomson 427SC engine - primarily for cooling effect. Brian had another engine for his car ready to run (near duplicate of Hellfire's engine) so we ran it on 93 octane and E85. On gas - duplicated Hellfire's engine - as it should have. On E85 - 'found' a few more!

While we want E85 for cooling, looks like we can address Mark's issue of breaking tires loose "only" up to ~100 mph at same time.

Dave

Hellfire Testing at GingerMan
 

Video #1

Hellfire Testing at GingerMan Raceway
 

Video #2

Definitely not a car for mere mortals!

Want to see lap times with Hoosier's!

........and some details on the dashboard. :secret:


Insert quotes from Miata driver here:


:lol:

^^^^^ This :hail:

That must be such a rush .... thanks for the videos!

Good luck at SEMA .... the other cars should beware Hellfire is coming and you know who is following!

Hi Mark,
Just curious what degree thermostat your running in hellfire?

Thanks,
Dan

Stock 2014 Camaro Z/28. It is a 177 degree stat and it flows more.....makes a great hot rod part.

I wonder who designed that.... :innocent:

Mark

So one question? When are changing out the motor for the E85 version?? :innocent:

Hey Mark kind off topic but have you ever thought of trying to have a reunion of your cars? Maybe at MCACN?? That would be soooo cool!! Maybe Charley would like to try and set it up?? I'd help???

http://www.musclecarandcorvettenationals.com/

Same motor - just need change injectors and calibration. Utilizing production flex-fuel sensor and have calibration automatically adjust for % ethanol. Would be easy update to Hellfire's engine since sized fuel system to meet flow requirements of E85.

Somewhat reaching limits of how much power can utilize. Haven't reached Mark Donahue definition; "...it will never have enough power until I can spin the wheels at the end of the straightaway in high gear.", but getting close.

Main reason looked into E85 was for PT cooling - extra power was just a bonus. Could easily detune on E85 to same power levels as gas and further reduce thermal load on cooling system.

At end of 15 minute sessions, temps are running below what was tested on dyno - so met targets for cooling system (even on gas). Granted, ambient temps were lower, but extrapolating cooling data to warmer conditions, and engine will be fine.

Might be good winter project - but there is plenty of shopping days left till SEMA.....

Dave

As long as the fuel system is up the task. No engine swap should be required. It should be as simple as filling up the tank with E85 and a different calibration for the ECM. Typically E85 requires about 40% more fuel than the same HP on pump gas.

If your going to use E85 make sure you invest in an E85 tester. We have seen pump E85 range from E75-E90.

*Edit - I didn't see Dave's reply because I was slow typing my post, but I'll leave my post here for the tester link.

A lot of local guys run GM flex fuel sensor in conjunction with tuning so the car can automatically swap tables to run between 93 and E85. I believe Holley just released programming and harness to run that sensor as well so I will definitely be on that program. Only prob is two CTS-V pumps will only support ~1200hp on E85...

Also, this car is amazing. Saw it posted on Facebook I believe and came here to go through the thread. Always amazed with your work.

I do need to sort out how to ask people to look with their eyes and not their fingers.

Mark[/QUOTE]

Mark,
I found these molded rubber signs on E-Bay.
http://i1113.photobucket.com/albums/...xwjCmjBnCw.jpg

I only display them when in the presence of people that "need a reminder". One on the rad support, and one kind of laying on each quarter window outer channel. They are polite, but work. Have thought of having die cut decals made, but no need for me.

Amazing
 

Great job with the build and really enjoyed the videos. Will be great to see the car in person at Vegas and I promise not to touch the car. I think that one of your hallmarks is that in the end the car looks OEM under the hood yet is far from OEM power levels. Fortunately with the way the car looks we can judge the book by it's cover.

Rod in HB

Some more track video :)

Awesome! Almost like he was blocking him for a bit, but probably just kept guessing wrong on which to move to get out of Marks way. :lol:

I'll speculate that he didn't want to acknowledge the fact that a '69 Camaro had his far superior Porsche covered in every aspect. Then they start driving over their head in an unpredictable manner and nothing good can happen in that situation. I had a similar situation at T-Hill with a Cayman GTS.

:lol: :thumbsup:

Poor Porsche!
 

Awesome video ... I bet the Porsche driver WON"T post that pass on his thread:ohsnap:

I was thinking of posting that vid over on the 6speedonline and Pelican forums.... where all the P-car guys hang out... that'd go over well. :D

I was waiting for a point by and he never gave one. So I went. He was full throttle and I passed with ease.

I had already been black flagged once that day for passing in a turn. So I was not wanting to get black flagged again.

The Porsche guy did not look very happy afterward in the pits.

I wish I knew if he was a good driver because my car was all over the GT3 in the sweepers. Judging by the one wiggle he was somewhat trying.

Mark

http://www.race-technology.com/dash2_8_940.html

I want to see the run files.

I can log all the CAN data (Engine Information) out of the ECM. It also allows me to set warning lights for all the critical systems:

Engine Water Temp
Oil Pressure based of engine RPM
Oil Temp
Fuel Pressure
Super Charger Air Temp
Knock
Air Flow
Boost

I like it becuse you just have shift lights and warning lights. I can watch it out of the corner of my eye and not have to scan 5 gauges for problems.

It will also display lap times if I want it to.

So far it is cool. It has an Odometer, turn signals, high beam and park brake lights built in.

Mark

If you dont i will.....

Thanks Donny :thumbsup:

This is just an amazing car. It makes me wonder, where can it go from here?

I'm in this hobby because of you, Mark. It definitely isn't your nature to promote yourself or your role in this hobby, but the truth is that you had a clear individual vision that started with Tri Tip, and that vision engaged the minds of some other key folk, and together a movement was built. If you want to think of it in corporate terms, you were and are the Chief Engineer and Technology Officer. Jeff Smith is SVP of PR. And the CEO isn't one person, it's the community: the forums like Pro-touring and Lat-g, the many small/medium businesses like DSE, Ridetech, Wilwood, etc, and the individual craftsmen who raise the bar every year. What a force this movement has become.

For me, the Red Witch cover story in Hot Rod in '96 twisted a couple of threads together for me - the thread that never got over my first ride as a nine year old in a muscle car in 1969, and the thread that appreciates modern engineering, performance, convenience. I've followed every build closely since, and much of what I learned is reflected in my latest car.

I think the most interesting thing I take away is your approach: build, learn, refine. The biggest mistakes I've made, and that I see others have made, are to shoot for the moon before achieving orbit. Your approach always seems to be: Let's start with what is proven. Decide what are the priorities for improvement. Take risks only for the highest priority items, and then research those risks as thoroughly as possible. Build and test in the real world. Rinse and repeat. It's a formula we would all do well to follow - at least if real world results are the criteria. If I'm not mistaken, it's the formula that ultimately built this ultimate car.

Best of luck at OUSCI!

Scott

"1.5 seconds faster than the Z/28".....I think that might say more about the Z/28 than Hellfire! I'm thinking about getting one to compliment my '13 Boss 302! Awesome

Compliment or embarass? :D

Sorry couldn't resist the opening. :sieg:

Best video I have ever seen love it !!!!!!