Recent content by Old Car Guy

Chris, Thanks for replying again. I never questioned the strength of your AOD's, but I was not aware that yours would shift into and hold overdrive at WOT. Congratulations on making that happen. I had always thought that the overdrive clutches in an AOD were simply too small to hold an...

Chris, Thanks for the response. Now let's see if I properly understood what you told me. The 4L80E will eat up more HP than the Turbo 400. The standard gearing for 1-2-3 in the 4L80E is 2.48, 1.48, and 1.00, just like the Turbo 400, but the wide-ratio Turbo 400 gearset with the 2.75...

In various of the threads that have discussed the 4L80E transmission, there has been mention made of how inefficient they are, in terms of how much HP they soak up. If the 4L80E was developed from the Turbo 400, which is what I've read, does the 4L80E eat up even more HP to drive it than does...

OK, the direction of this thread seems appropriate for some questions I have about the best thing to do to a stock GN head relative to larger valves. My understanding is that the diameter of the stock GN intake valve is 1.71, and that the stock GN exhaust valve is 1.50. And when people begin...

Is there a difference in standard 1986/1987 GN smog equipment, between those sold in California and those sold in the other 49 states? My son is just about to buy a GN, and we're wondering if we would have problems getting a non-California GN registered in California because of differences in...

Relative to the concern about a big single pump overwhelming the flow capacity of the return line, what is the inside diameter of the return line, anyway? More than likely, if anything in the fuel system gets "overwhelmed", it will be the internal return port of the fuel pressure regulator -...

Does your friend have an ECM you could swap in, at least temporarily, or have you already tried that?

I posted this on an ongoing Translator thread, but no one had anything to say about my questions. So, I'll try it again as a stand-alone thread and see if I have any better luck. In all of the posts I've seen about the Translator+, the main thrust of the discussion seems to be about...

In all of the posts I've seen about the Translator+, the main thrust of the discussion seems to be about adjusting timing, rather than adjusting fuel. While I understand that, since timing adjustment is the added feature of the + over the standard Translator, I'm interested about the amount by...

Oops - not quite the same thing, is it. Oh well, I guess that even though Conley is a Buick guy, not all his cars are Buicks. Sorry for the bad info.

According to the Conley Performance site, www.conleyracing.com: "We have been able to hit 212.29 mph and run a 6.55 with Tweaked II setting a new world record!" --------------------------------------------------------------------------------

Wheezy, Unless you like spending money on gears and such, there's no reason for you to trade out your 3.73 gears for 3.42 gears, so long as you keep running your 28" tires. There is NO significant difference between the overall gearing of a 3.73/28" tire combo and the overall gearing of a...