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Discussion Starter · #1 · (Edited)
Car is headed to the dyno on Thursday then the Track on Friday after never having been on either since basically stock.

You have until 12pm PST on 8/5 to post your guesses. The closest HP guess wins; in case of a tie, closest 1/4mi ET wins.

Car:
2011 A6 Sedan on E85 averaging 70-80%

Mods
Ported Blower
Ported Snout
Ported LSA Heads
Ported V Lid with reinforced brick
Cam Motion 240/264 .640”/.641” 122+7 Low Lash Solid Roller Cam
Comp Lifters
Jesel Rockers
.660” dual valve springs & Ti retainers
7.900” x 3/8” Pushrods
ARP Head Studs
Holley Tall Valve Covers
102mm Throttle Body
8.6” Balancer
2.35” Griptec Pulley
100mm Idler Pulley
HD Belt
4.5” Intake and Green Filter
5/8” Billet Lid Spacer
Dual AEM 320lph Fuel Pumps
DSX Aux Fuel Pump
1300cc Injectors
Flex Fuel Sensor
2” Primary Headers
3” Exhaust to Cutouts
Stock Mufflers
Mighty Mouse Oil Catch Can
9gal Trunk Tank & -12 lines

Dyno
Dynocom Chasis Dyno
Temperature: 75-80* F
Elevation: 3600’

Prize
Black Diecast CTS-V Sedan

Guesses
719 / 10.2 - subaru335i
720 / 10.1 - random84
734 - dru21281
737 / 10.05 - MeanMike
744 / 10.05 - theheder
747 - JAustin
756 / 10.21 - Blades1_9
759 / 9.98 - JJmento
760 - Sbchris
768 / 11.02 - jcs003
769 / 10.4 - ctarb1
775 - Rubber Duck
777 / 10.2 - Jim
780 - N00B
782 - Blown376
786 - SoCalDave
800 - SilverSedan
801 & 10.4 - loweredd
813 / 9.64 - omgctsv
815 / 10.1 - SimplyDreamin
831 - m13s
840 / 9.95 - WaitedTooLong4MyV
841 / 9.96 - suprahero
890 - Detroit_Muscle07


152555



152639


152640
 

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777 & 10.2
 

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756

Amended with 10.21 1/4 mile
 

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At or around 100% cylinder fill, with E85,
should make just north of 775 HP.

In the end. . .
Any dyno number above 775 HP, would be dependent
on both the tune as well as the dyno.

With that cam, anything less than 764 would not be good..lol

Calculated HP with that cam and sufficient heads on E85,
would be 906 HP.

Heads on a 'Live Engine' going down the track, would need
to flow 338 CFM, with that cam, to make that 906 HP.

---------------------------------------------------------------------

Good thing your on E85, as it burns faster and quicker than Gasoline.

Cam Motion 240/264 .640”/.641” 122+7 Low Lash Solid Roller Cam.

-relative to the Cr & Engine RPM we typically spin these engines to-
That exhaust duration, installed at +7° would not be good on
Gasoline, as one would be blowing unburnt energy out the exhaust
pipe.

Also, that wide LSA / LCA requires a good head, having sufficient
velocity on an NA Engine. But the DD / PD Roots Blower helps the
failings of an insufficient head regarding the intake side / port, thus
allowing for a wide LSA / LCA. . . . .

Nice Build..(y)

Cheers,
RD
 

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Discussion Starter · #13 ·
Guesses so far:
734 - dru21281
756 - Blades1_99
768 - jcs003
769 - ctarb1
775 - Rubber Duck
777 - Jim
782 - Blown376
813 / 9.64 - omgctsv
890 - Detroit_Muscle07
 

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Realistically, this is a ported LSA head / blower car with ethanol and a nice cam. Probably too much cam for the heads - that's a lot of lift and exhaust duration.

I'd say 720 RWHP depending on the correction factor / air quality. 10.1 in the quarter.
 

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Hard to say without knowing who did the port work but I’ll go 760


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