Jump to content
HybridZ

Safe engine speeds


Guest rationull

Recommended Posts

Guest rationull

I'm new to Z cars and something of a paranoid wuss when it comes to engine speed (my old car's engine was a bit more fragile than the L28). Just for my own peace of mind, I decided not to fight the temptation to ask:

 

How high do you guys usually rev your engines when accelerating, and for cruising?

 

(mine is an 83 280zx NA just for information).

Link to comment
Share on other sites

The tach yellows at 6500 and reds at7000. However power peaks at about 5600 on older z's and about 5200 on zx's. So on a stock zx theres not much point in reving past 6000 and thats just to drop in at a higher rpm when you shift.If yours engines heathy you can rev it to 6000-6500 all day long if you want.welcome to the world of z's.

Link to comment
Share on other sites

as you can see on my dyno chart, power drops significantly after 5500. I am running an l28 on su carbs. My A/F is constant until 5000 then it starts to run extremely rich which led to the drop in power. With a better cam i can see this motor running 6500-7 no problem.

581_thumb.attach

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...