WTF Chevrolet engineers! - Page 2

JamesNoBrakes · 02-01-2021, 11:51 AM

WTF people that don't research something before posting about it!

JGiovando · 02-01-2021, 07:33 PM

Come on guys, no need to jump all over the OP and pile on like this. Isn't this what a forum is for, to ask questions, share information, help each other out. So what he didn't know about the crimped exhaust. Why even post if only to be rude. It surely didn't make you feel better about yourself and helped no one. Resist the urge to do it again

NA18CamaroSS · 02-02-2021, 07:58 AM

So I read all of the info that I could find on this topic. The only empirical evidence that I have seen is the Mishimoto test. Most of the discussion out there is that "the science is settled, it makes no difference in horsepower or torque" . Fluid dynamics this and GM engineers that. I remain unconvinced. Holly claims 12 HP with their crimp delete kit, which must be taken with a grain of salt, since they are selling a product. It appears that the crimp exists because of some brace on the convertible, and GM chose to incorporate it into all Camaros as a cost saving measure.
Either way, I'm glad that my American Racing exhaust eliminates the crimp.

NeverDie · 02-02-2021, 08:52 AM

Quote:

Originally Posted by JGiovando

Come on guys, no need to jump all over the OP and pile on like this. Isn't this what a forum is for, to ask questions, share information, help each other out. So what he didn't know about the crimped exhaust. Why even post if only to be rude. It surely didn't make you feel better about yourself and helped no one. Resist the urge to do it again

And what is it that you think you're doing? Because it sure looks like you're taking the opportunity to "jump all over" the people who responded to the OP. Some interesting irony, isn't it?

The issue was with the response, demanding others show the research that he wouldn't search for etc. Your reply here is just hilariously ironic and self-absorbed as a result of not understanding the situation. Put yourself in more shoes than his and you'll gain perspective. Thanks!

WhiteMale · 02-02-2021, 09:32 AM

Even if you got 12hp from a delete of the crimp you'd need a dyno run to see that because you'd never know it, you'd never know it from the seat, its so inconsequential.

arpad_m · 02-02-2021, 07:33 PM

Quote:

Originally Posted by NA18CamaroSS

So I read all of the info that I could find on this topic. The only empirical evidence that I have seen is the Mishimoto test. Most of the discussion out there is that "the science is settled, it makes no difference in horsepower or torque" . Fluid dynamics this and GM engineers that. I remain unconvinced.

It's an esthetic problem only. Engine Masters did a lengthy header "deformation" test in which they kept bashing in the pipe more and more to see if there is a difference in hp output, and there wasn't, at least not beyond the margin of error.

Sometimes technical intuition fails us. Then again, I understand why you dislike the way the crimped section looks and am glad to see that your exhaust kit eliminated it.

JGiovando · 02-04-2021, 10:22 PM

Quote:

Originally Posted by NeverDie

And what is it that you think you're doing? Because it sure looks like you're taking the opportunity to "jump all over" the people who responded to the OP. Some interesting irony, isn't it?

The issue was with the response, demanding others show the research that he wouldn't search for etc. Your reply here is just hilariously ironic and self-absorbed as a result of not understanding the situation. Put yourself in more shoes than his and you'll gain perspective. Thanks!

Oh neverdie......you're incorrect in every way.

I didn't jump on anyone. He didn't demand anything from you or anyone else, it was just a question. You berated a guy for asking a question on a forum. A guy that reached out to other guys and gals with camaros for support. I only suggested you not be rude to someone for asking a question. And if you can't be helpful then read the post and move on. No need to belittle someone.

That said, I can tell from your comment you think you're quite intellectual and of course I'm as you stated self absorbed and dumb. Back to badgering, belittling, and bullying which is a recurrent theme in your posts. But know that your response is isolated and lonely buddy. Imagine with this behavior life is too. Good luck brah

JGiovando · 02-04-2021, 10:26 PM

NA18CamaroSS....glad you got some help and found your answers. Hope you enjoy the new exhaust.

JGiovando · 02-04-2021, 10:52 PM

Hey neverdie,

One more thing. Feel free to enlighten me on how walking in other's shoes, in this situation, yours for example, would help me gain perspective. Hoping you can return the favor of comedic relief as I seemingly did for you.

NeverDie · 02-05-2021, 08:58 AM

Maybe it will be helpful for you to know that after your novella and follow-up response, in which you lack the fortitude to reach out to me directly but seemingly have no issues posting my name (and I'm LOVING the hugely hypocritical irony of whining about berating others, then commenting on how I'm like... lonely or whatever? lmao, rich.. that's what I called you out for initially so thanks for reinforcing it), this simple dismissal is all that I feel you are worth.

G'day, brah!

SirJangle · 02-05-2021, 09:40 AM

Quote:

Originally Posted by Walt88

Tested to death from multiple sources, no difference in power https://www.mishimoto.com/engineerin...he-crimp-myth/

Good read. Thanks!

DaveC113 · 02-05-2021, 10:48 AM

Makes you wonder about spending all that ca$h on mandrel-bent piping... I've assembled a few custom exhausts from mandrel bends, seems like I should have just had the local muffler shop crush-bend it for much less $ and effort.

MatthewAMEL · 02-05-2021, 11:20 AM

Quote:

Originally Posted by arpad_m

It's an esthetic problem only. Engine Masters did a lengthy header "deformation" test in which they kept bashing in the pipe more and more to see if there is a difference in hp output, and there wasn't, at least not beyond the margin of error.

Sometimes technical intuition fails us. Then again, I understand why you dislike the way the crimped section looks and am glad to see that your exhaust kit eliminated it.

One of my favorite shows.

EM, HRG, RK, RKG, are some of the best stuff around.

I wish they would do more testing/use of fuel injection stuff, but I understand why they stick to 'old school'.

3.8TransAM · 02-05-2021, 07:45 PM

Quote:

Originally Posted by DaveC113

Makes you wonder about spending all that ca$h on mandrel-bent piping... I've assembled a few custom exhausts from mandrel bends, seems like I should have just had the local muffler shop crush-bend it for much less $ and effort.

Run mandrel up front and go to crush bent in back.

The farther the restriction is from the engine the less of a restriction it actually is.

Quite a few cars have issues in the rear like this over the years, and most had no real gains when removing the suposed restriction.

02-01-2021, 11:51 AM	#15
JamesNoBrakes Drives: 2SS 1LE Join Date: Oct 2011 Location: AK Posts: 2,301	WTF people that don't research something before posting about it! __________________ Everything happens for a reason, except when it doesn't, but even then, you can, in hindsight, fabricate a reason that satisfies your belief system. 2018 2SS 1LE 2023 Colorado ZR2 2022 Stinger GT-line AWD

02-02-2021, 07:58 AM	#17
NA18CamaroSS Drives: 2018 Chevrolet Camaro 2SS 1LE 6M Join Date: Jul 2019 Location: California Posts: 283 View My Garage	So I read all of the info that I could find on this topic. The only empirical evidence that I have seen is the Mishimoto test. Most of the discussion out there is that "the science is settled, it makes no difference in horsepower or torque" . Fluid dynamics this and GM engineers that. I remain unconvinced. Holly claims 12 HP with their crimp delete kit, which must be taken with a grain of salt, since they are selling a product. It appears that the crimp exists because of some brace on the convertible, and GM chose to incorporate it into all Camaros as a cost saving measure. Either way, I'm glad that my American Racing exhaust eliminates the crimp. Attached Images __________________ Bolt-ons.

02-05-2021, 10:48 AM	#26
DaveC113 Drives: 2018 Camaro 1SS 1LE Join Date: Sep 2018 Location: Front Range, CO Posts: 1,868	Makes you wonder about spending all that ca$h on mandrel-bent piping... I've assembled a few custom exhausts from mandrel bends, seems like I should have just had the local muffler shop crush-bend it for much less $ and effort. __________________

02-01-2021, 07:33 PM	#16
JGiovando Drives: 2018 1SS 1LE HBM Join Date: Jul 2014 Location: Florida Posts: 161	Come on guys, no need to jump all over the OP and pile on like this. Isn't this what a forum is for, to ask questions, share information, help each other out. So what he didn't know about the crimped exhaust. Why even post if only to be rude. It surely didn't make you feel better about yourself and helped no one. Resist the urge to do it again

02-02-2021, 09:32 AM	#19
WhiteMale Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020 Location: MO Posts: 1,992	Even if you got 12hp from a delete of the crimp you'd need a dyno run to see that because you'd never know it, you'd never know it from the seat, its so inconsequential.

02-04-2021, 10:26 PM	#22
JGiovando Drives: 2018 1SS 1LE HBM Join Date: Jul 2014 Location: Florida Posts: 161	NA18CamaroSS....glad you got some help and found your answers. Hope you enjoy the new exhaust.

02-04-2021, 10:52 PM	#23
JGiovando Drives: 2018 1SS 1LE HBM Join Date: Jul 2014 Location: Florida Posts: 161	Hey neverdie, One more thing. Feel free to enlighten me on how walking in other's shoes, in this situation, yours for example, would help me gain perspective. Hoping you can return the favor of comedic relief as I seemingly did for you.

02-05-2021, 08:58 AM	#24
NeverDie Account Suspended Drives: 2017 Camaro SS 1LE Join Date: Oct 2018 Location: AZ Posts: 429	Maybe it will be helpful for you to know that after your novella and follow-up response, in which you lack the fortitude to reach out to me directly but seemingly have no issues posting my name (and I'm LOVING the hugely hypocritical irony of whining about berating others, then commenting on how I'm like... lonely or whatever? lmao, rich.. that's what I called you out for initially so thanks for reinforcing it), this simple dismissal is all that I feel you are worth. G'day, brah!

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