Alternative Auto Performance: Your Ford, GM and Mopar Performance Specialists

3 weeks ago

Alternative Auto Performance
Here is the dyno graph results from the JLT. 
And, time slips from Saturday at Ubly.

Here is the dyno graph results from the JLT.
And, time slips from Saturday at Ubly.
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These are some unbelievable numbers, on a mostly stock car Lid! Well done my man.

Great job Lidio

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Before the season ended for us here in MI -- we got the car out in some good and much cooler Fall air, (mid 40*s) and tested out the JLT unit and also benefit from some much cooler air. The results have turned out great so far. We ran numerous 9.7’s at over 142mph and then our very best was a 9.68 @ over 143mph… which we backed up with a duplicate run.

We believe the JLT was responsible for most of these gains in MPH and ET since our previous best of 9.77 at just over 140mph. The traction was great, but could have been better, so I’m continuing to not “slam” the throttle off the starting line with only about a 1300rpm brake torque. 60-foots were in the low 1.4’s and could have been in the very high 1.3s with a little more traction and pushing the car harder on the hole-shot.

These numbers were achieved with a full weight car and no front runners. All shifts have been at or just over 7000rpm for the entire 2017 season! With no trouble at all.
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Rob Ortosky Mike Brandow Michael Wilson

Nice !!!

Great, thanks for your work testing our product.

What's jlt

Dre Saul

Dave Seilicki

Awesome...

Why not run without JLT yesterday since there was a weather change so we can compare Apple to Apple weather and mod? Or did I misread your 9.77 run

Rich Lictawa

She runs good going have get mine to the track in the spring

Msu Gotti here you go...this is what i need

Neil VanOppre Mitch Beri 😲

Justin Fawns

Sorry Lidio havn't been following what model challenger is it?

Bryan Edward Drinkwine

Not a very good light but WOW on the ET.

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3 weeks ago

Alternative Auto Performance
Alternative Auto is very happy to announce that we are working with and testing what we feel will be one of the best ever AirBox assemblies for the Hellcat Vehicles.

JLT is known for producing some of the best performing and best fitting AirBox kits we ever worked with for many other applications -- Primarily Fords and Mustangs for us. We now feel that they’ve come up with a great AirBox upgrade for the Hellcats.

The most important feature that JLT has embraced and worked with on the Hellcat’s is they’re AirBox kit does not inhibit the stock “cold-air”, or “Ram-air” features that these cars come with.

We’ve learned with some testing that although several of the other aftermarket Airboxes out there for these cars will show some very impressive gains on the Dyno, as much as 30rwhp, they do not pay-off  where the rubber meets the road.  We’ve found that some of them do nothing for gains at the 1/4 mile and in the real world. And, some will actually harm real world performance outside of a chassis Dyno due to the fact that they are simply “very open” under the hood, and allow hot fan wash, and hot under hood air to get into the inlet assemblies, thus hindering performance.

The key feature we’re looking forward to with the JLT is primarily that it is sealed once the hood is closed, and makes full use of the stock Ram-air features. We are even going to experiment with the stock hood vent opening, with it both open and blocked-off at the local ¼ mile while testing.

So far (like other units), we are very pleased with the Dyno results. Our Hellcat, for now is leveled off and limited to about 830rwhp on e85 fuels. We’ve peaked as far as we’re concerned with essentially Bolt-ons because of the stock fuel pumps limitations on e85 fuel at 7000+ RPMs. Average DynoJet runs on ours is about 825-830rwhp, And just bolting on the JLT has bumped ours to 852rwhp... very solid gains on the Dyno so far!

Alternative Auto is very happy to announce that we are working with and testing what we feel will be one of the best ever AirBox assemblies for the Hellcat Vehicles.

JLT is known for producing some of the best performing and best fitting AirBox kits we ever worked with for many other applications -- Primarily Fords and Mustangs for us. We now feel that they’ve come up with a great AirBox upgrade for the Hellcats.

The most important feature that JLT has embraced and worked with on the Hellcat’s is they’re AirBox kit does not inhibit the stock “cold-air”, or “Ram-air” features that these cars come with.

We’ve learned with some testing that although several of the other aftermarket Airboxes out there for these cars will show some very impressive gains on the Dyno, as much as 30rwhp, they do not pay-off where the rubber meets the road. We’ve found that some of them do nothing for gains at the 1/4 mile and in the real world. And, some will actually harm real world performance outside of a chassis Dyno due to the fact that they are simply “very open” under the hood, and allow hot fan wash, and hot under hood air to get into the inlet assemblies, thus hindering performance.

The key feature we’re looking forward to with the JLT is primarily that it is sealed once the hood is closed, and makes full use of the stock Ram-air features. We are even going to experiment with the stock hood vent opening, with it both open and blocked-off at the local ¼ mile while testing.

So far (like other units), we are very pleased with the Dyno results. Our Hellcat, for now is leveled off and limited to about 830rwhp on e85 fuels. We’ve peaked as far as we’re concerned with essentially Bolt-ons because of the stock fuel pumps limitations on e85 fuel at 7000+ RPMs. Average DynoJet runs on ours is about 825-830rwhp, And just bolting on the JLT has bumped ours to 852rwhp... very solid gains on the Dyno so far!
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Comment on Facebook

Very impressive numbers!!

Headers or still stock exhaust manifolds?

Michael Wilson

Thanks for the time and results. We are very happy with what we are seeing so far.

Justin Fawns

Justin Syrowik

Pete Zeiman

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We are keeping our eye on the weather. It’s looking better. We are planning on Ubly tomorrow. ... See MoreSee Less

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Is it still a go today?

We have secured October 28th for our annual Ubly Track Day, due to having a rain out on the 14th. Please try to join us!!

We have secured October 28th for our annual Ubly Track Day, due to having a rain out on the 14th. Please try to join us!! ... See MoreSee Less

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Andrew Hook

Dominic Ciaramitaro Nathan Heyza Jim Rubrich

Ya will be there! Since your paying my way in and buying lunch! Lol! Hope the weather is good like this Saturday!😎🏁

Can anyone race? If so how much??

Erik Thomas McAuliffe

Gary Bowman

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Ubly is officially called off. Watching tomorrow, but not looking so good for Sunday either.

Join us next weekend @ Milan for NO ET.
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Well, its not looking good for racing today.

Well, it's not looking good for racing today. ... See MoreSee Less

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Next weekend?

We will be at Milan for No ET

question why ubly over lapeer? never been to either. ones just much closer.

We re racing in Ohio...get on the road!

Lid, quit trying to back out just because you don't want to get beat by my LS car!! Put those rain tires on!!

Last night was stellar.

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Sunday October 15th 2017 will be our rain day.

Sunday October 15th 2017 will be our rain day. ... See MoreSee Less

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Carl Poggiolo

Hopefully no rain on Sunday but the forecast doesn't look good as of right now.

Josh

Ryan Hartsuck Sunday?

Wait.... A gathering of people and mustangs.... Living dangerously i see

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2 months ago

Alternative Auto Performance
Photos from Alternative Auto Performance's post

Photos from Alternative Auto Performance's post
This past weekend (9-10-2017) our shop Hellcat Challenger finally saw some sub 70* temps, and also improved traction by intalling a overall taller Drag-radial (29in) mounted on some 18in wheels. We've also upped the rear gear from the stock 2.62 and installed the popular 3.09 ratio.

This all paid off with a very best of 9.77 @ just over 140mph, and numerous 9.80s all day at Ubly Dragway.
The DA was just under 700ft most of the afternoon with sixty foots in the 1.44 range.

A quick recap on the short list of mods:
9.5% overdrive damper,
3.1in upper pulley (about15.5psi boost),
Off-road mid pipe,
3.09 gears,
e85 fuel, 130# injectors,
1-peice DriveShaft, all WOT sifting at 7k RPM,
All Custom tuning for PCM & TCM performed by Lidio Iacobelli using HP-tuners with totally stock AirBox unit, and stock fuel pump and sytem, with a BAP unit added to pump,
305 / 45 / 18in DR's
830rwhp
Full weight Challenger Hellcat, Zero weight reduction!

This car will go 9.6's and possibly quicker at well over 141+MPH later this fall when the air gets even colder, and we hope to continue to see good 60 foots out of it at local 1/4 mile tracks.

And a reminder, we want to make sure that people take note that our Hellcat has been shifting and trapping at 6900+RPM all Spring & Summer for the 2017 season.

The addition of the 3.09 grear are now causing it to trap in 5th at only about 6700rpm, whereas the 2.62s were traping in 4th at over 7100rpm

When watching the in car and out-of-car videos, listen to all the WOT shifting, there is no sliding thru gears on this 8-speed, and just quick and positive WOT shifts all the way to 5th.
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Comment on Facebook

Rob Ortosky Michael Wilson Mike Brandow

Dave Seilicki

Thing sounds great!! Was on a hella run

Got damn!!! These are unbelievable numbers Lid! No surprise man. You're the doctor.

Steven Rankel

Gary Jacob

Mike Litton

Nice job

To clarify, you shift your motor higher than 4,800rpm without catastrophic engine failure? A shoe salesman told me he read on the internet; that's impossible. Asking for a friend. 🤷🏼‍♂️

I compliment your full disclosure.

My gosh , that's demon run times right there .

Russell Edzards

Brian Lee It's a smoking Hellcat

Michael Wallis

Just saying,getting the most out of least BUCKS.🙂🙂🙂

Eldin Machiavelli

Jenny Mclain

Chuck Dick, when you finally get yours, here's the guy that you want to tune it. 😎

SRT Hellcat & Demon Group

Nice work guys!

Dylan Thibodeau Justin Smith Joe Doktor Andrew Dominek

Badass!

Liking tazer tool I bet

Carlan Flatt

Glad to see Lidios finally playing with some mopars

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Ubly Day is Saturday, October 14th this year. Racing starts at noon. Mark your calendars and plan to join us. ... See MoreSee Less

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Andrew Hook

Have never is it at Mylan raceway

Is this open to anyone to race? What is entry fee?

Anthony Bronzovich, whatcha think?

Lidio I'm really going to try and make it. We wouldn't be there until between 3 and 4 if we make it though.

Dang, can't go - it's packet pickup day for the Detroit Free Press Marathon and Half Marathon. It's still racin', just not with cars.

Raul Oliva

Kevin Paulus

Better tune up the yellow coupe Lid, I'm coming for you!!

this is Ted 2015 Hellcat can you call me want to discuss what is going on with car right now not a problem

Scott Eric

Weather is saying 90% rain at Ubly ?

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