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Stock ATS-V Heads Make the Power!

MikeGuy993

Member
Joined
Apr 13, 2022
Messages
12
Location
Columbus
V-Series Cadillac(s)?
2018 ATS-V
The ATS-V continues to possess its own unique quirks and intricacies that make it stand out from every other mainstream platform out there. One particular instance of this was with our good friend Alex in Washington who was actually one of our very first customers we tuned more than four years ago. After installing our Purple Belt Package, he had his heads ported to see if he could pick up more power. Oddly enough, his ATS-V was actually down on power compared what we usually see with Purple Belt cars.

Alex decided to ship his ATS-V to us in Ohio so we could not only to confirm his ported heads were the problem, but also to install our complete Brown Belt Package! After swapping on a new set of stock LF4 heads and Jorge completing every detail of the Performance Package installation, we were able to strap his car to the dyno. Our suspicions were confirmed when we saw the power numbers we expected for a 91 octane Brown Belt car. When we finished up, his ATS-V made 689 whp with a beautiful powerband! The only thing left to do was get Alex’s ATS-V detailed and shipped back out to Washington for him to enjoy!

#TapoutTakeover #ResultsNotInstults #UnderPromiseOverDeliver #WontTap #BreakRecordsNotParts

stance.jpg
on the dyno.jpg
92 Octane Brown Belt Package Dyno Chart.PNG
 
Nice, love the power band!
 
What about the set of ported LF4 heads was problematic?
 
We have tested nine different sets of ported LF4 cylinder heads, with some of them done by very big names. In every case, there was a significant power drop. We can't explain what these companies are doing wrong. But we can confirm the factory cylinder head design kicks serious ass!
 
So this was testing on an engine dyno not flow testing?
 
So this was testing on an engine dyno not flow testing?
All our power testing was conducted on a chassis dynamometer. However, we also have flow numbers on some of the aftermarket cylinder heads, and the flow rate increases were mind blowing!
 
Tapout, have you ever dyno'ed the Frankenstein heads?
They are works of art with incredible flow numbers! We have one pair here, brand new, never used, and you can have them for well below our cost if you're interested.

 
They are works of art with incredible flow numbers! We have one pair here, brand new, never used, and you can have them for well below our cost if you're interested.


Yeah but do they actually make power?
 

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