Originally Posted by mikels (Post 616106)

All numbers I quote are engine dyno as well - 1000 RWHP is a staggering number - and nearly impossible to achieve while maintaining the driveability level we have with this package.

Dave

Originally Posted by will69camaro (Post 616083)

......holley has not made a compatible sensor available yet on their standalone engine management systems.....

Originally Posted by mikels (Post 616078)

We've had no issues running returnless fuel systems - even with big power / high flow - when you stage secondary pump to come in early enough to maintain stable control as fuel flow rates rise.

In Brian Thomson's Corvette, we have basically the same engine as JA2.0, but are running dual TI 267 pumps with staged Vaporworx PWM controlled system. Same E85 - same flow rate requirements. So far, has performed perfectly with no pressure falloff - although we have not yet tracked the car (coming soon!).

On both cars I integrated the flex fuel sensor to allow seemless transition between pump premium, E85 and everywhere in between. Mark even has the ECM measured ethanol percentage displayed on his dash. Yes, there is variation in ethanol %, but system accommodates all levels without issue.

Like Carl says - big power & high flow rates mean no easy solution - but we will get there!

Carl has been great to work with as development continues on Jackass 2.0 and TA Corvette systems. Having a system that will meet WOT E85 fueling requirements while delivering stable flow rates on gas @ idle WITHOUT fuel heating issues is an incredible demand. All this would not be possible without his support.

Primary reason we went to E85 was not for power, but for cooling. Power gains are just side benefit (6-8% is what we measured).

I think we have reached a practical limit for the Thomson Automotive 7.0L SC package. We've passed point of diminished returns as far as lap time reduction (will still help in 1/4 mile and standing mile events). However, as Mark can also attest - being traction limited to ~80-100 MPH is something you'll never tire of!

Dave

Originally Posted by CarlC (Post 616149)

Thanks for the compliments William.

If anyone is running a Holley ECU using a VaporWorx controller purchased prior to November 2014, please send the controller back for modification. There is something in the Holley trigger that causes VW controller damage after a short time.

Originally Posted by CarlC (Post 616152)

Thanks Dave. It's been a pleasure working with you and Mark.

Now, if TI would just make a real module with twin 267's both the flowrate and control challenges would be covered. There's likely not enough aftermarket demand to justify the tooling costs.

So, yes, we can do not only dual 267's, but triple setups as well. Be on the lookout for a mean grey TT G8. He ran the Power Tour with the triple setup with barely enough time after the complete build to drive to the start. No problems for a system that can flow enough fuel to power well over 1800hp @ 60amps. These are the same pumps used in the Hellcat, so there is OE reliability + plenty of overhead.

.....and there's new products coming :)

Originally Posted by will69camaro (Post 616160)

No problem Carl!

I'll look at the date on my box and see, but I may have to send it back to you yet again to have it modified if that's the case. I still have a bit of time before the car is running so no big rush.



I like this idea of single CTS- V as primary and secondary being bigger pumps. I'll have to look into the Hellcat pumps and see what can be worked out.

Originally Posted by Stielow (Post 616158)

So the development continues. Test car, break parts, fix, repeat.

Originally Posted by CarlC (Post 616176)

Yours was April 2014, so it's needs a bit of surgery.