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UrS4 2.2T Avant project

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  • so that's 2 left and 2 right?

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    • Originally posted by quattrostyle View Post
      so that's 2 left and 2 right?
      now theres a thought.....:mischeif:

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      • Well, in my opinion dual twins are too much bimmer look.


        Edit. Hmm, ~50km to the nearest E85 fuel station. What size injectors would be enough to max out the HX40S with E85?
        Last edited by Thuppu; 7 June 2012, 14:24.

        Audi UrS4 Avant 2.5 20vt - twincharged - Project
        Audi 80q B4 Sedan 2.2 20vt - Daily user
        BMW 320d Touring e91 M-Sport - Daily user
        BMW 740iA e38 - Project

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        • Originally posted by Thuppu View Post
          Well, in my opinion dual twins are too much bimmer look.
          good point!!....stick with the twin 3" tailpipes...

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          • Well, it's very theoretically but let's have a go.
            - 700hp capable turbo, that's at least 0,6kg/s airflow.
            - Burning air to fuel at a ratio of 10 with E85 mixture with density of 780kg/m³ would need around 4500cc's per minute, divided over 5 cylinders is 900cc/min injector MINIMUM.
            - Max mapping DC of 80% to have enrichment margin, make it 1200cc/min flow.

            Of course a smaller injector could do combined with increased pressure delta over in injector by tweaking the FPR.

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            • Ok, thanks for the theory. My EV14 does 1000cc@4bar, so they are pretty close...

              Audi UrS4 Avant 2.5 20vt - twincharged - Project
              Audi 80q B4 Sedan 2.2 20vt - Daily user
              BMW 320d Touring e91 M-Sport - Daily user
              BMW 740iA e38 - Project

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              • We all like the beemer look, or S8 look

                1995 Audi S6 - AAN (~350hp)
                2008 BMW 530xd (235hp)
                2008 Hyundai i30 - 1.6 CRDI (89hp)
                2011 KTM 990 SMR - custom tuned (120whp)

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                • Originally posted by Wrath View Post
                  We all like the beemer look, or S8 look
                  Do you have more pictures of this car?

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                  • Originally posted by Topolini View Post
                    Do you have more pictures of this car?
                    Here is Wrath's project thread: http://www.s2forum.com/forum/showthread.php?t=57461

                    Audi UrS4 Avant 2.5 20vt - twincharged - Project
                    Audi 80q B4 Sedan 2.2 20vt - Daily user
                    BMW 320d Touring e91 M-Sport - Daily user
                    BMW 740iA e38 - Project

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                    • Originally posted by Thuppu View Post
                      Thank you!

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                      • Exhaust still not finished but drove it today. My neighbours propably love mee.



                        Looks quite sharp in the image, but there is much rusty and rotten places on this car. I sure you that better ones has been broken to parts many times.

                        Audi UrS4 Avant 2.5 20vt - twincharged - Project
                        Audi 80q B4 Sedan 2.2 20vt - Daily user
                        BMW 320d Touring e91 M-Sport - Daily user
                        BMW 740iA e38 - Project

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                        • Rusty or not it still looks great!
                          96 S2 aby Coupe. Rebuild Project
                          96 mk3 golf tdi daily.

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                          • yeah, looks good. Has a nice stance.

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                            • Looking even better when you know what´s under the bonnet
                              Fiat 131 Abarth replica AAN

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                              • Thanks guys.

                                Collected all info about the technics, mods etc. so far.

                                Block:
                                - 82,5mm bored stock AAN block
                                - Pauter rods
                                - JE-pistons 82,5mm 8,5:1 CR
                                - CP lightweight 20mm piston pin's
                                - APR(replica) studs
                                - Machined water jacket
                                - 25-row oil cooler
                                - Engine mounts alu polyurethane(made by AnLe audifinns)
                                - Engine front mount 034 polyurethane/DIY
                                - DIY sump baffles

                                Head:
                                - Cams 7A exhaust cam, AAN cutted ex cam as intake cam
                                - Rosten high load springs and bottom retainers
                                - Stock INA lifters
                                - Lightly ported head
                                - Machined water jacket
                                - Re-shaped ex- and intake valves
                                - Rosten adjustable ex cam gear and intake cam sprocket

                                Breathing:
                                - Tube exhaust DIY
                                - AAN intake manifold
                                - Tial MVR wastegate
                                - Holset HX40 Super Turbo
                                - 4" Downpipe
                                - 5" 100cell catalytic converter
                                - 3,5" Exhaust with Simons silencers
                                - 3" IC piping
                                - 450x300x76 cooler
                                - Aquamist HFS-3 water injection

                                Engine management:
                                - Motronic
                                - RS4 MAF

                                Fuel delivery:
                                - 2 x Bosch 044
                                - 2 x stock fuel filters
                                - Walbro 255LPH lift pump
                                - ~4,8 liter surge tank
                                - Mallory 4305M FPR
                                - 12x1mm fuel piping
                                - 1/2" and 3/8" steel braided teflon lines with pressed hydraulic fittings
                                - Bosch EV14 1000cc@4 bar injectors
                                - Custom "Motorsport" fuel rail
                                - DIY breather system with swirl pot

                                Ignition:
                                - 1.8T/TFSI coils
                                - Bosch F5DP0R plugs
                                - DIY loom

                                Driveline:
                                - SRE pressure plate, 4-puck sinter
                                - Fidanza lightweight alu flywheel
                                - 01E 6-gang gearbox

                                Suspension and brakes
                                - Koni sport shocks
                                - Weitec -40mm springs
                                - Front subframe bushings replaced with DIY alu/steel bushings/mounts
                                - Rear subframe bushings replaced with delrin bushes (made by bambridge S2forum)
                                - Front brakes S4 B5 30x321mm disc's with HP2 calipers
                                - Rear brakes stock

                                Audi UrS4 Avant 2.5 20vt - twincharged - Project
                                Audi 80q B4 Sedan 2.2 20vt - Daily user
                                BMW 320d Touring e91 M-Sport - Daily user
                                BMW 740iA e38 - Project

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