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Quote:

Originally Posted by Stielow (Post 576123)

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.

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

Hellfire Testing at GingerMan Raceway

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:

Quote:

Originally Posted by Ravenworks (Post 574093)

In the world of 1969 Camaros that car IS the space shuttle!
Great job, Mark! This is your best ride yet!!!

^^^^^ 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

Quote:

Originally Posted by catmanzr (Post 576196)

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/