camshaft

[jeep112]

what is the best camshaft without tuning for a stock 2000 wrangler tj 4.0L ? and how much rwhp and torque i can get?
thanks in advance.

 

[Dr. Dyno]

The best cam is probably the one you already have; the stock unit. Any other cam is likely to be only a small improvement for a lot of expense.

 

[Purple]

Why is that? How come all other engines, produce X amount of HP and Torque after an aftermarket Cam being installed and not the I6?

 

[dmillion]

Why is that? How come all other engines, produce X amount of HP and Torque after an aftermarket Cam being installed and not the I6?

They don't. They may CLAIM all kinds of increase, but most engines will get very little gain from a camshaft alone. It's when you combine a camshaft with other modifications that you see noticeable increases.

 

[Purple]

ok, So what other mods would you have to implement in order to see more gain? Bigger injectors, TB, what else?

 

[Cjmartz2k]

http://www.jeep4.0performance.4mg.com/index.html

Read. Re-read. Do it again. Lurk. Than see if you still have any questions. That site should tell you all you need to know. :read:

 

[Dr. Dyno]

http://www.jeep4.0performance.4mg.com/index.html

Read. Re-read. Do it again. Lurk. Than see if you still have any questions. That site should tell you all you need to know. :read:

That site does look familiar.
When you've gone over all the mods that I did to my old 4.0 engine (before I did the stroker swap), you'll see that the one mod that I left out was the cam. When it comes to performance mods this is almost always the last one on the list not because there aren't any HP/TQ gains (the gain is ~9hp/15lbft for the Crane 753905 cam over the early 4.0 cam, and ~5hp/4lbft over the later 4.0 cam), but because it's a huge hassle and expense to do a cam swap on a pushrod engine.
The cam & lifters will cost you ~$180 but you'll also need to change the timing set (your 2000 cam sprocket will not fit on any aftermarket cam) so that's $110 if you go for the Cloyes dual roller set. Add the cost of a full gasket set and total cost of parts alone is ~$350, and that's if you keep the stock valve springs. Labor will be 8 hours so at $60 per hour, that's close to $500 unless you do it yourself with a buddy to help you. Total cost of cam swap will be ~$850. Add performance valve springs and the cost becomes $1000. Do you think it's worth it?
Now you understand why it's at the bottom of the list of performance mods.

 

[Cjmartz2k]

Exactly. It was one of those "it's broken and I'm gonna have to replace it anyways" things for me.......Just like the stroker motor that's probably going to start being built soon. Just waiting to see the results of a compression test somebody recomended I do :flipoff: