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I have a set of 440cc injectors that were going to be used with a Jan tune last summer. Fizzgig is down for some clutch repair so I thought I would install the injectors unless they would be too much w/o a tune. My sig indicates the mods I have.
Kevin
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Fizzgig - 2002 MCS PS/PS: M7 16%, Milltek hdr w/cat, Magnaflow catback, Alta CAI ver 2, GRS I/C, Voltage scoop, Thumper head, Newman cam, DT B/V, Brisk plugs, Kingborn wires, exterior blackout, SSR type C 16x7, Yoko AVS ES100 205x50x16, B&M SSK, MM aluminum skid plate, ACT Streetlite Flywheel, ACT HD Performance Street Clutch Kit, Quaife LSD, JCW 380cc injectors, Craven Speed strut tower plates -top/bottom, Koni Yellows, H-Sport springs and RSB, Wilwood BBK front
I have also heard there are big problems without a tune. Air/Fuel ratio gets all jacked up and the engine doesn't know what's going on.
__________________ SCARECROW: R53 CR/B - Alta exhaust custom bent for bumper, Alta CAI w/box, Screamin Demon coil pack, new wires/cold plugs, JCW 380cc injectors, WMW quick tune, M7 strut tower brace, Hotchkis competition rear sway bar, Hotchkis lower control arms, Megan Racing coilovers w/ 1" drop, custom rear seat delete, HID fogs... The Evolution Of My Mini
I have 450's from Jan. I installed them the day of the tune @ the tune. Ian and Jan told me I could install them before and drive to the tune but warned me that my car would run like sh--.
I would wait if I were you. It's about a 20 minute install. Remember to have some grease on hand for the o-rings.
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[SIGPIC]OZ Ultraleggra's, Conti DW Extreme contact, H&R coilovers,H-Sport Comp rear sway bar, H-Sport control arms, Magnaflow cat back, Maddness 15%, K&N Typhoon CAI, M7 STB, Black projector headlights, Euro taillights, RMW tune, RMW street cam, RMW 450cc injectors,GP intercooler, DDM air diverter, Alta OCC, ATI Super damper, Powerflex bushings, ACT clutch & Streetlight flywheel, OBX LSD
With the 440 cc injectors and a stock tune, you'll be running uncontrollably rich.
The amount of fuel getting to the engine is controlled by the on/off duty cycle of the injectors. With slightly larger than stock injectors and a stock tune, the car's ECU can compensate by using the "fuel trim" to shorten the injectors' "on" cycle to deliver less fuel.
But, the fuel trim can only shorten the "on" cycle by about 20%, and the 440 cc injectors flow 33% more fuel than stock injectors. So even with the fuel trim at its limit, you'll be flowing about 13% too much fuel.
I kinda thought that would be the case. I just hate to have parts sitting around gathering dust. Need to find out if Jan will be in the midwest any time soon.
thanks for your responses,
Kevin
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Fizzgig - 2002 MCS PS/PS: M7 16%, Milltek hdr w/cat, Magnaflow catback, Alta CAI ver 2, GRS I/C, Voltage scoop, Thumper head, Newman cam, DT B/V, Brisk plugs, Kingborn wires, exterior blackout, SSR type C 16x7, Yoko AVS ES100 205x50x16, B&M SSK, MM aluminum skid plate, ACT Streetlite Flywheel, ACT HD Performance Street Clutch Kit, Quaife LSD, JCW 380cc injectors, Craven Speed strut tower plates -top/bottom, Koni Yellows, H-Sport springs and RSB, Wilwood BBK front
You can get a remote tune from Jan that scales the injectors and takes into account your mods. Then, when he finally is in your area, for a few more bucks he can tweak it. It Will make you feel good, and it isn't much money, so I say "Just do it"
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9 out of 10 of the voices in my head are telling me to "floor it!"
Webb Head, RMW Cam, RMW tune *228HP/199TQ, 2 1/2" Alta Full exhaust, Koni FSD, IE fixed, Meth@ 10lbs., 450cc injectors, 15% pulley, ATI damper, M7 cc, MM OC, M7 STB, H&R 19mm RSB, Wilwood BBK, Koenig 16in rims, Firestone Indy 500s, boost, oil temp and pressure gauges, Hot Air Intake, Italian Air Horn
OBEY
