No BS dyno test of Vararam CAI for G8
08-12-2009 | 02:59 PM
#21
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From: Victoria, TX
I took the car up to 130mph (test track of course) and saw no real gains in kPa at max velocity. I will log next time I'm at the Texas Mile and see if there are any gains above 150mph.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
08-12-2009 | 03:46 PM
#22
Yes, I finally had a chance to log the MAP numbers of the stock airbox vs the Vararam on the dyno and at speed. Here are the findings:
Stock Air box:
kPa would drop from 101 to 96kPa at WOT on the dyno and at speeds of over 100mph. No ram air effect.
Vararam:
kPa would drop from 101 to 98kPA at WOT on the dyno. (2 kPa better than stock).
kPa would hover between 99-100kPa at speeds above 60mph with an occasional 101kPA. (4-5 kPa better than stock).
Net result, the Vararam gave 2 kPa less restriction on the chassis dyno vs. the stock air box and added an additional 2-3 kPa in pressure at speeds above 60 mph. Since we gained around 10rwhp on the dyno with a 2kPa gain, it is possible to pick up a total of 20rwhp over the stock airbox at speeds over 60mph considering the 4-5kPa gain of the VR vs. stock.
Stock Air box:
kPa would drop from 101 to 96kPa at WOT on the dyno and at speeds of over 100mph. No ram air effect.
Vararam:
kPa would drop from 101 to 98kPA at WOT on the dyno. (2 kPa better than stock).
kPa would hover between 99-100kPa at speeds above 60mph with an occasional 101kPA. (4-5 kPa better than stock).
Net result, the Vararam gave 2 kPa less restriction on the chassis dyno vs. the stock air box and added an additional 2-3 kPa in pressure at speeds above 60 mph. Since we gained around 10rwhp on the dyno with a 2kPa gain, it is possible to pick up a total of 20rwhp over the stock airbox at speeds over 60mph considering the 4-5kPa gain of the VR vs. stock.
08-14-2009 | 12:49 AM
#25
From the Vararam website:
At a glance:
• Produces a real-world 35hp+
• A direct bolt on
• No chopping or cutting on the car
• Unreal throttle response
• Flows 1400-2000CFM+! (Depending on the filter used)
• Reduces 0-60mph by a full ½ second! (As tested 5.2 stock vs 4.7 & 4.65 best with
VR system NO TUNING!) With a tune, we saw 4.4 sec but no grip to go faster.
• Reduces ¼ mile ET by 3 tenths and adds +3mph Minimum Guaranteed, or we will
take the unit back and pay shipping both ways!
• (NO TUNING) w/ tuning you will go even quicker.
I've seen people on the G8 boards makes claims in the 20+ rwhp range, but I don't know what kind of tune the baseline had verses the after version. For what it's worth, a heat-soaked IAT sensor vs a cooled-off IAT sensor can make a 10 rwhp swing by itself from the timing that gets pulled with elevated IATs. I've seen this skew results in the past with stock tunes. IATs did not affect timing in my tests.
At a glance:
• Produces a real-world 35hp+
• A direct bolt on
• No chopping or cutting on the car
• Unreal throttle response
• Flows 1400-2000CFM+! (Depending on the filter used)
• Reduces 0-60mph by a full ½ second! (As tested 5.2 stock vs 4.7 & 4.65 best with
VR system NO TUNING!) With a tune, we saw 4.4 sec but no grip to go faster.
• Reduces ¼ mile ET by 3 tenths and adds +3mph Minimum Guaranteed, or we will
take the unit back and pay shipping both ways!
• (NO TUNING) w/ tuning you will go even quicker.
I've seen people on the G8 boards makes claims in the 20+ rwhp range, but I don't know what kind of tune the baseline had verses the after version. For what it's worth, a heat-soaked IAT sensor vs a cooled-off IAT sensor can make a 10 rwhp swing by itself from the timing that gets pulled with elevated IATs. I've seen this skew results in the past with stock tunes. IATs did not affect timing in my tests.
Off topic but have you ever rear the paperwork on a K&N CAI, they will refund your money if it doesnt make what they claim. Of course there is small fine print stuff involved but its not all unreasonable.
