C8Z06 increase torque of 14 foot pounds will you feel it?
03-19-2024, 02:08 PM
#1
Drifting
Thread Starter
C8Z06 increase torque of 14 foot pounds will you feel it?
I read the DYNO results between intakes: Stock / JLT / Eventuri intakes.
The power increases were good, IMO, however I do not anybody would feel the increase of 21 HP from the best intake on our already 610+ RWHP cars.
With that said, what do you guys think about torque increase through the power band of 5-14 pound-feet of torque?
Regardless of cost, just pure performance wise.............
The power increases were good, IMO, however I do not anybody would feel the increase of 21 HP from the best intake on our already 610+ RWHP cars.
With that said, what do you guys think about torque increase through the power band of 5-14 pound-feet of torque?
Regardless of cost, just pure performance wise.............
03-19-2024, 02:26 PM
#2
You might see some slight drops in racing times due to it's accumulated effect on speed, but I doubt you'll percieve a difference in instant acceleration. 14 ft-lbs on the dyno adjusted to 1st gear torque to the wheels should be around 113 ft-lbs or like torqueing your lug nuts (if I've calculated it correctly - I'm assuming dynos correct torque to a 1:1 gear ratio?). It gets even less perceivable in higher gears obviously.
03-19-2024, 05:41 PM
#3
Melting Slicks
My take - I don't believe in the magic fairy dust model of power gains from bolt on mods and try to be skeptical of all claims.
That said, there 'might' be more to the story re: gains at speed with these intakes. Depending on the aerodynamics and relative pressure differences at the intake inlet created at speed (e.g. high and low pressure pockets), the air coming into the intake 'might' have a very small "charge" to it - nothing as crazy as FI and only a small fraction of the benefits from true turbo or supercharging, but even a slight increase in pressure would equate to a few additional HP at speed (not 50 or anything crazy but maybe another 10???).
The possible evidence: there is some evidence that swapping TBs (not an intake) results in a measurable improvement in acceleration that is greater than one would expect from a small 10 HP improvement...
Just realized ZRacerLE referenced this as well... Perhpas this is due to non-peak power gains for the peak power gains?
Does this prove anything - no but I think it demonstrates this engine has some room for improvement - it probably has another 40-50 peak HP on the table and perhaps more with improvements in area under the power curve, In the end, the LT6 is not the ideal platform for big bolt-on improvements in power... If one wants to see big improvements, the LT2 platform is far more cost efficient and suitable as it is far less high-strung and near the maximal output from the factory.
That said, there 'might' be more to the story re: gains at speed with these intakes. Depending on the aerodynamics and relative pressure differences at the intake inlet created at speed (e.g. high and low pressure pockets), the air coming into the intake 'might' have a very small "charge" to it - nothing as crazy as FI and only a small fraction of the benefits from true turbo or supercharging, but even a slight increase in pressure would equate to a few additional HP at speed (not 50 or anything crazy but maybe another 10???).
The possible evidence: there is some evidence that swapping TBs (not an intake) results in a measurable improvement in acceleration that is greater than one would expect from a small 10 HP improvement...
Just realized ZRacerLE referenced this as well... Perhpas this is due to non-peak power gains for the peak power gains?
Does this prove anything - no but I think it demonstrates this engine has some room for improvement - it probably has another 40-50 peak HP on the table and perhaps more with improvements in area under the power curve, In the end, the LT6 is not the ideal platform for big bolt-on improvements in power... If one wants to see big improvements, the LT2 platform is far more cost efficient and suitable as it is far less high-strung and near the maximal output from the factory.
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ZRacerLE (03-19-2024)
03-19-2024, 06:00 PM
#4
The Consigliere
Member Since: May 2006
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For me, that little juice ain't worth the squeeze.
ymmv.
ymmv.
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JABCAT (03-20-2024)
03-19-2024, 08:03 PM
#6
Oh for sure.
03-19-2024, 09:55 PM
#7
Pro
The type of performance change would be somewhat like the difference between driving the car when 60 F outside vs 80 F outside all other conditions the same! In other words the engine makes more power in colder air.
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PRE-Z06 (03-20-2024)
03-20-2024, 03:50 PM
#8
Race Director
Member Since: Nov 2017
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2020 C6 of the Year Winner - Modified
These guys seem to be getting around in the intake market. I see this topic posted all the time in the BMW M forums. Essentially the same price for the same advertised power increases on BMW Ms & the Z06. The supposed gains don't justify the price (for either platform), imo.
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555ctsv (03-22-2024)
03-20-2024, 09:12 PM
#9
Race Director
I wouldn’t bother. The best money spent is improving the driver knowledge and skill. Not the car.
03-20-2024, 10:42 PM
#10
Safety Car
14 ft-lbs isn't a lot unless you get it across a large rpm band. If it bumped the entire curve from 5500 rpm - 8500 rpm by 14 ft-lbs then it can start to have an effect, even though its only a 3% gain.
When I look at some of the quickest C8 stingrays in 2021 and 2022, they were doing mods picking up 5 HP here, 10 HP there, and it started to add up. Combine with a little weight savings and their 1/4 mile times were well ahead of everyone else. I'm not going down that path as the car is pretty quick stock and if anything in the drivetrain lets go, it will be an expensive fix. If I could change the gears for a couple grand, maybe I would risk no DCT warranty because better gears benefits driving at part throttle and at WOT.
When I look at some of the quickest C8 stingrays in 2021 and 2022, they were doing mods picking up 5 HP here, 10 HP there, and it started to add up. Combine with a little weight savings and their 1/4 mile times were well ahead of everyone else. I'm not going down that path as the car is pretty quick stock and if anything in the drivetrain lets go, it will be an expensive fix. If I could change the gears for a couple grand, maybe I would risk no DCT warranty because better gears benefits driving at part throttle and at WOT.
03-21-2024, 01:11 AM
#11
Dig
Member Since: Jan 2006
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14 ft-lbs isn't a lot unless you get it across a large rpm band. If it bumped the entire curve from 5500 rpm - 8500 rpm by 14 ft-lbs then it can start to have an effect, even though its only a 3% gain.
When I look at some of the quickest C8 stingrays in 2021 and 2022, they were doing mods picking up 5 HP here, 10 HP there, and it started to add up. Combine with a little weight savings and their 1/4 mile times were well ahead of everyone else. I'm not going down that path as the car is pretty quick stock and if anything in the drivetrain lets go, it will be an expensive fix. If I could change the gears for a couple grand, maybe I would risk no DCT warranty because better gears benefits driving at part throttle and at WOT.
When I look at some of the quickest C8 stingrays in 2021 and 2022, they were doing mods picking up 5 HP here, 10 HP there, and it started to add up. Combine with a little weight savings and their 1/4 mile times were well ahead of everyone else. I'm not going down that path as the car is pretty quick stock and if anything in the drivetrain lets go, it will be an expensive fix. If I could change the gears for a couple grand, maybe I would risk no DCT warranty because better gears benefits driving at part throttle and at WOT.