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while installing afrs , should i change out fuel injectors,and is it worth it? what brand?(SVO 36LB?) what high perf parts are needed as insurance to prevent mishaps.while it's torn apart, what else should be changed and why ,runnin g5x3 right now, and whole bunch of other stuff. thanks.
while installing afrs , should i change out fuel injectors,and is it worth it? what brand?(SVO 36LB?) what high perf parts are needed as insurance to prevent mishaps.while it's torn apart, what else should be changed and why ,runnin g5x3 right now, and whole bunch of other stuff. thanks.
what other mods do you have? Take a Tech II and measure your injector duty cycle. SVO 30's wouldnt hurt, but you have to rescale your table for the new injector.
As I was developing the AFR H/C 205 project in my car currently, I "ran out" of injector right around 450 RWHP. If you feel you will achieve that number or higher....and/or plan on additional upgrades down the road (who doesn't!), then upgrading the injectors now is probably not a bad idea. The bottom line is a bigger injector won't make any more power on say a 425 RWHP...enough fuel is enough fuel...but too small an injector as power levels climb will ultimately handicap you. It might be one of those things you save a few bucks on now (if possible) and change later as you continue to get bitten by the mod bug in search of more power....(a common problem if your like most us that get consumed by needing MORE....LOL).
Tony M.
Last edited by Tony Mamo; Apr 4, 2005 at 09:22 PM.
what other mods do you have? Take a Tech II and measure your injector duty cycle. SVO 30's wouldnt hurt, but you have to rescale your table for the new injector.
here is what i got, 98 vert A4, running g5x3 cam/114, LT stainless headers, x pipe, hi flow cats,blackwing,halltech powerduct,78mm tb,z06 3:42 rear, protorque 2400(replacing with ss3600)ghl full catback, ls1 edit,F.A.S.T manifold,meziere electric waterpump, put down 381 RWHP,locked not including the electric waterpump,
here is what i got, 98 vert A4, running g5x3 cam/114, LT stainless headers, x pipe, hi flow cats,blackwing,halltech powerduct,78mm tb,z06 3:42 rear, protorque 2400(replacing with ss3600)ghl full catback, ls1 edit,F.A.S.T manifold,meziere electric waterpump, put down 381 RWHP,locked not including the electric waterpump,
I seriously doubt your on the ragged edge yet with stock injectors....by the way, I would subtract 20-25 from my "450" number if your running an A4....(the losses are more driveline related...the engine would be producing similar power to an M6 putting down 450). Even taking that into consideration, it seems you still have a fairly comfortable margin, but obviously there is nothing like just doing a dyno run with the Tech 2 to see exactly where you are at concerning injector duty cycle.