

| Subject: | Rev limits |
| Date: | Sun, 14 May 1995 22:07:30 -0700 |
>>Well, I read your posts. I don't think you should stop, but I'm not Gerry. >>I find it interesting. As a post script, what is the redline on my 71 stock >>1600. ie. stock valve springs. >> Sir, Thanks for the support, I'm having a bit of a crisis about my VW technique here, in spite of my dozen engines and ten years of working on them, I'm reticent about giving anybody else advice about something I can't seem to keep on the road myself. But, I guess I'll try. My Haynes book says the 50 HP 1600 achieves peak power at 4000 rpm, with "maximum cruising speed" at 65 mph, which is 3900 rpm with the stock tires. I can't remember where I saw 4400 rpm, but I'm beginning to think even that is high for anything but a momentary rev on stock springs. My older brother once told me, years ago before I ever started working on engines, that the VW was designed to operate at full power "continuosly." I've believed that for years, which is why I've never blinked even when following trucks down hills at 85 mph, or slamming up hills or into the wind with a full load, foot to the floor for hours on end. I've tempered that opinion a bit over the years, but I still think it's fundamentally true, just not over say... 4200 rpm. It's the valve train that's really the most awesome, driving the cam directly from the crank keeps the valve timing tight I think. Eug, '71 Gerry like's em too, so I guess I'll keep it up. Reposting this for the group.
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