A relatively good forum if you can ignore the "old guard" and the usual agendas associated with that aspect. Too much BS from sponsors and their buddies. And I've noticed that they don't partake in most technical questions and if they do, half the time it is to promote their products.
For example, when I started producing replacement Beru spark plug cables, a particular sponsor was insisting that the actual spark plug caps will fail (well duhhh of course they will, if I wait long enough) and that the ignition cables should be replaced as a complete set (not just the cables, which by the way are what deteriorate).
Lets hold on to that thought for a minute.
Yet that same sponsor never replaces a transmission input shaft seal when performing a clutch job unless it is leaking. Lets see now, if a spark plug cap failed and needed replacing, its a five-minute job in the future to replace it. But if that transmission input shaft seal fails, it would be a multi-hour job in the future, not to mention expense, to replace it. That sounds like great advice not replacing that seal when you already have everything apart for a clutch job. Place rolleyes icon here. But he will replace a shifter shaft seal, a seal you can easily replace with the transmission in place in the car. That almost looks like that sponsor is hoping for a repeat job in a year or two. There is a reason Honda replaces the water pump, even when its not leaking, while performing a timing belt change...because you're in there already.
And that dumb sponsor was telling me how hard it was to replace that seal in a belittling way with his "yes men" cuing in soon thereafter...I've replaced them every time I've done a clutch job for myself or others. If that sponsor thinks it is difficult to replace that seal, maybe they should take up basket weaving. LOL
Here is one from a shop that members look upon as "the expert". This shop claims to have rebuilt well over 300 distributors since 1995. Yet when asked if the bearings used are "a deep groove ball bearing or an angular contact bearing" the response was "standard deep groove ball bearings" when in fact the bearings used are angular contact bearings and for a good reason. Am I supposed to believe this expert shop about anything else. I am sure the lemmings do.
Although the forum folder that I spend most of time in is titled "Air/Oil Cooled Technical Discussion Areas", expect to read about countless non-Technical topics as well. That is the downside.
On a positive note, there are a lot of really great members on the forum willing to share information, which is what a forum should be all about.
Link to the Rennlist Discussion Forum