E 30 cam? E88 head? anybody have any info on these?

[Quinn'Z]

just curious about what im working with. the engine work was pre-me, wondering if its necessary for premium fuel, the previous owners mechanic said it was a big cam, and while it sounds mean with the header and big exhaust but i dont feel it. also, ive noticed a bunch of you using 20w50 oil, is there a reason why so heavy a weight? im in hawaii so i dont have to worry about starting under 60 degress:) but i dont want to ruin my engine with overly thick oil.

[madkaw]

E-30 is about right for an early e-88. As far as being a BIG cam-only some mics could show that. That cam could have been reground into a performer. As far feeling power, the butt dyno is decieving and if it's not dialed in right, it's might be worse.

Oil, you don't need to run 20/50w. Will it hurt anything-probably not. 10/40 is plenty good, and synthetic is a plus.

[Quinn'Z]

i assumed it was stock, it doesnt look clean enough to be a regrind or very new but i did sit for some time. i cant seem to get her to run good for more than a few days at a time. i set the points, clean the plugs, adjust the carbs, several times now and it slowlly goes back to running poorly by the end of a week. plugs are not fouling but they still look a bit rich. i do spend half the day at sea level and half at 3000 feet. im tuned at 3000 ft cause thats my house. assuming im running rich while on the coast.

[Quinn'Z]

thank you for the help!

[madkaw]

You need to define ' not running good'. Any other history on the motor will help

[EuroDat]

Hi, regarding the oil. You might want to read the article on the site http://datsunzgarage.com/rebuild/ about 3/4 down the page under title Lubrication.