[JSH]

Originally Posted by Z OH 6

I believe I've seen someone here post that they own an Exorcist and I thought he posted dyno results and it doesn't live up to 1000hp as advertised. Based on the whp posted, it would have been around 950hp.

I'm responding to yours here because it also covers the other's posts.

HPE advertises BHP just as KaTech, LPE, maybe all do.

Originally Posted by Z OH 6

The issue I think most have with Hennessey is that the price is ridiculous and they don't work with you to do any other modifications other than their package.

HPE's package prices incl. 2-year warranty, and at least 2 round trips shipping. Remove these items and their price (for the 850) is the same as KaTech's. HPE, KaTech and LPE prices are about the same. I have spoken with all.

Originally Posted by Z OH 6

They had a bad reputation many many years ago that a lot of people online won't let go. Apparently the rest of the world has though because they're still in business.

HPE did ~550 cars in 2019. I doubt any other shop in the country aside from LPE is even the same universe with this volume of work. And, of course, the more cars you produce the greater chance of having a problem car(s).

Back to the OP; if he likes and wants the Exorcist he should do it. Every shop has both fans and detractors.

[Z OH 6]

Originally Posted by JSH

I'm responding to yours here because it also covers the other's posts.

HPE advertises BHP just as KaTech and LPE do.



HPE's package prices incl. 2-year warranty, and at least 2 round trips shipping. Remove these items and their price (for the 850) is the same as KaTech's. HPE, KaTech and LPE are about the same.



HPE did ~550 cars in 2019. I doubt any other shop in the country aside from LPE is even the same universe with this volume of work. And, of course, the more cars you produce the greater chance of having a problem car(s).

Back to the OP; if he likes and wants the Exorcist he should do it.

If you mean BHP (gross) HP, then that's misleading advertising because no one uses gross HP anymore. Net HP is what the factory uses and based on the whp numbers that was posted on the Exorcist, the net HP was just under 950 if I recall. Hennesey would only use that number because it sounds better for marketing which is misleading and that alone would push me away from them.

As for how many cars they produced, I have no doubt that there are other top shops cranking out those numbers too.

[KingLT1]

It's a high priced reliable package with a warranty. If that checks your boxes then go for it...

[JSH]

Originally Posted by Z OH 6

If you mean BHP (gross) HP, then that's misleading advertising because no one uses gross HP anymore. Net HP is what the factory uses and based on the whp numbers that was posted on the Exorcist, the net HP was just under 950 if I recall. Hennesey would only use that number because it sounds better for marketing which is misleading and that alone would push me away from them.

As for how many cars they produced, I have no doubt that there are other top shops cranking out those numbers too.

Engine (engine dyno) power is of course highly preferable because it eliminates the many variables for losses. HPE dynos the car and estimates engine power from wheel power (WHP) using the dyno data. Many do this. I recall discussing this with KaTech too. Rather than putting it on an engine dyno to get HP and factoring that down to WHP, the reverse approach is used.

Engine power equals wheel power plus +/-15% is the general rule everyone uses. I know you know this but some might not

[JSH]

Originally Posted by Z OH 6

As for how many cars they produced, I have no doubt that there are other top shops cranking out those numbers too.

I seriously doubt it other than maybe LPE or KaTech, but if some shop tells you it does, post it here.

[arpad_m]

Originally Posted by JSH

I seriously doubt it other than maybe LPE or KaTech, but if some shop tells you it does, post it here.

And why is a shop that does 500+ builds a year better than one that does half as many? The experience will clearly be there above a certain volume, there isn't much to you as a customer to gain from there on.

You want to be account #894571 in a large pipeline with no accommodations for individual requests, issues or follow-ups?

[Vigilante375]

Originally Posted by JSH

I seriously doubt it other than maybe LPE or KaTech, but if some shop tells you it does, post it here.

HPE likes the attention. So they'll promote as they can to make themselves look like they are the only shop to go with.

They ALWAYS come out with something that'll grab people attention. Not long after a new platform comes out, they are promoting the xxxx HP package. You do not see others doing that.

They have a set package and I'm sure a majority of their customers have no clue about the engine or driveline of a vehicle so they go with their package.

Where as other places will let you bring your own stuff or choose with them.

To each their own, I'm just sick of John Hennessy seeing his business being treated as a top tier shop.

[Camaro1973]

Originally Posted by Vigilante375

HPE likes the attention. So they'll promote as they can to make themselves look like they are the only shop to go with.

They ALWAYS come out with something that'll grab people attention. Not long after a new platform comes out, they are promoting the xxxx HP package. You do not see others doing that.

They have a set package and I'm sure a majority of their customers have no clue about the engine or driveline of a vehicle so they go with their package.

Where as other places will let you bring your own stuff or choose with them.

To each their own, I'm just sick of John Hennessy seeing his business being treated as a top tier shop.

Which to my previous post, marketing sells. There's people that have 0 clue about cars, buy a ZL1, have money, see this glorious Hennessey advertisement and sooo oohhh ahhhh and away they go.


JSH i really dont know why you defend these guys so much. You paid a fortune for your build and are making less power then people that paid 15k.


Just admit, there's better and cheaper shops then henessey that do as good as work if not BETTER.


There's nothing (custom) about what they do, they do the same thing everyone else does, except they have the marketing and the name. That's the only difference, plus a 200% markup.


If someone want to spend that money, then so be it.

[ariZona28]

I say get the Z06. You have a BAD ASS Camaro currently and a Vette will be the perfect "other" car with a completely different platform. The only challenge I see is the availability.

[JSH]

Originally Posted by TheFlyingBananaSS

I am seriously considering buying a brand new Hennessy Exorcist Camaro. I have a couple questions if any of you guys can answer them.

1- Are there any Exorcist owners here? If so, what's been your experience with the car?
2- Has anyone ever verified the hp with a dyno?
3- Do they use the stock oil pump or is it upgraded?
Thanks in advance. Very difficult choice between The Exorcist or a 2022 ZO6. But that's pretty much where I'm at with my choices narrowed down.

OP - As I predicted, the only agreement here on HPE is disagreement. But, to me it's simple: if you want the Exorcist, buy it.

[serper3]

Originally Posted by TheFlyingBananaSS

I am seriously considering buying a brand new Hennessy Exorcist Camaro. I have a couple questions if any of you guys can answer them.

1- Are there any Exorcist owners here? If so, what's been your experience with the car?
2- Has anyone ever verified the hp with a dyno?
3- Do they use the stock oil pump or is it upgraded?
Thanks in advance. Very difficult choice between The Exorcist or a 2022 ZO6. But that's pretty much where I'm at with my choices narrowed down.

I wouldn't personally go with Hennessy but that is just me. Too much talk of issues, and not enough talk of positive experiences like with other reputable shops. Especially for a shop that is apparently doing an insane amount of volume.

Either way, the two cars you are considering are drastically different. if you must get either an exorcist or a 2022 zo6 I would hands down get a z06.

[Z OH 6]

Originally Posted by serper3

I wouldn't personally go with Hennessy but that is just me. Too much talk of issues, and not enough talk of positive experiences like with other reputable shops. Especially for a shop that is apparently doing an insane amount of volume.

Either way, the two cars you are considering are drastically different. if you must get either an exorcist or a 2022 zo6 I would hands down get a z06.

I agree here other than the Z06 is likely going to be pushed back to 2023 if production issues don't get resolved.

[TheFlyingBananaSS]

Wow, thank you for all the input. Positive and negative. I like to entertain both sides of the coin. I am leaning more towards the ZO6 at the moment but was at the dealer and production dates are not set yet. I can put a deposit down to guarantee a car though. I need a warehouse so I can buy several cars lol.

[ZX-10R]

Not sure I trust GM to build a reliable high revving Ferrari beater, it's not really their bread and butter. Look at all the engine problems Ford has with the GT350 (although not widely reported)

The LT4 is a solid, proven platform for big power, just needs a reliable oil pump and new blower.

I would only consider a Z06 after it has proven itself for a few years, and even then I'd probably rather have a GT3 (which is reliable)