[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index] On searching for power from V8
I prolly need to preface the following w/ a caveat that I know *nothing* about the Audi V8. Driven several, liked 'em, but dumb on the design *especially* on the auto. With that said... Years ago, during my Mopar racing days, I convinced myself that the automatic tranny was the way to go. Especially, if you wanted to drive [at least sometimes] on the street what I raced, umm, usually on the street. Prob w/ the manual was (1) the clutch (2) keeping stuff working--when needed the most [read here part breakage on launch]. As most know, great racing clutches are about like throwing an on / off switch--pure bit*h on the street. So, even w/ small block, I went with a manual valve body w/ reverse shift pattern [so that up-shifts were always made away from neutral--and corresponding moon rev]. Settled on 3800 stall converter and 4.88 rear gear. Now, while the shifts on that car were made way above what you will shift at in the Audi, it is a great setup to remember when looking for power with a normally aspirated motor. You have to look at where the power comes in on your car and design around getting to and staying in that range. Beats the hell out of getting power through higher compression [although I was running 12.5 to 1], expensive heads, etc. Now, I don't know whether you want to dig into your Audi auto or not, or alter your drive ratio @ axle. But, getting to powerband quicker sometimes makes getting *more* power unnecessary. Gas mileage will suffer some, all depending on how psycho you go with drive ratio--it is a give and get situation. Personally, if I had a V8 auto, I would find me an auto tranny needing rebuild and put pencil to paper on drive ratio before I opened the motor for more power. Just my nickel's worth. Bruce
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