What's the safe limit for horsepower for a daily driver? I have a CAI axelback and tune. Doing cams this month and planning on a TB and longtubes. No blower. No bottle. Am I safe? It's an 08 with 60k...

 

Most the guys with superchargers keep it at or just under 500HP with the stock internals. You should be well under that with NA "enhancements".

 

Awesome that's good to know. Thanks man!

 

Think you'll pick up about 80-100HP total over stock?

 

make sure you have a good tune to go with those cams. Which cams did you get? What kind of intake do you have and where did you get it from?

 

K&N CAI and Flowmaster (I think it's an axel back) exhaust were on the car when I bought it. I have the SCT tuner with Bama tunes and I'm running the 93 Race tune. In the next couple of weeks I'll be ordering Comp ***** Thumpr cams from AM and will be using the Bama tune.

 

Not really sure but that'd be awesome lol

 

450whp is at the end of the comfort limit for the 3v.
You'll be fine make sure you have a quality tune.

 

Yea from what I hear Bama puts out a good one. Hopefully that's the case =D

 

Actually revving it to make those cams work can be every bit if not more disastrous as running a blower. Revs kill more motors than pressure. And any blown car will drive around you 99 times out of 100

 

Not sure I agree with you on revs Vs pressure. What are you basing that on?

In this case with those cams he will most likely rev to 6500 with a proper tune. Way before any valve train or rotating assembly issues.

A blower of any kind will generate a lot more heat on those cast pistons, rings & valves. Heat & friction are the biggest enemies of an engine.

 

Sorry not true. Detonation which from improper tune causes heat and is the biggest problem for boosted motors. Revs kill more motors in more cars than anything. One missed shift, one bad down shift, too high a rev limit. Look at the expense Ford went through to raise the rev limit on the Boss motor. I know of motors that live a life time below rev line die in a day revving over red line one week end. Cams in normally aspirated motors beg to be revved because that is what makes more horse power. The Boss motor make almost no more torque than a Coyote motor but revs higher so it has higher HP. My boosted motor makes more torque at 2500 than the Boss motor makes at 7500 rpm if I limit my rpm to 6000 I bet my motor will last longer.

 

No, I'm sorry, it's obvious you don't understand how forced induction works. Its side effect is additional heat which can cause detonation, w/without an intercooler. But, at the same time it can be a lot more efficient then an NA motor. I'm not arguing which motor makes more power, it is obvious a boosted motor does.

Here are some basics, FI produces heat, first paragraph.

http://en.wikipedia.org/wiki/Forced_induction

Your argument for missed shifts etc., can be applied to any engine FI or NA, doesn't hold water. Anonymous engines that blow up at local tracks don't add to your argument either.

The Boss is designed as a road race engine which needs a wide band of power, so high revs are part of the deal. Ford is using all forged internals to meet this challenge, not sure what your point is?

The OP wanted to know how much HP & revs. Those cams he wants to use are NSR & will make power at about 6K. So most engine builders use a red line of 10% over the peak HP, so 6500-6600 will be a good max & still be safe.

 

Sometimes that's becaue they lived a lifetime below rev limit. Cylinders build rims. Then when everything is suddenly stretched to redline the rings hit that. Must go to redline once/day to avoid.

 

I hit the rev limiter too much in GT5.... I need a shift light...

My 2 cents

 

lol, me too. That is another nice built in feature of the new cars, keeps you honest.

 

i'm sure it's pretty safe to say 450-500 range with stock internals. if you are going for more then you are going to have to upgrade to forged internals and probably a couple other upgrades to be safe. but it also depends on how aggressive you drive the car too.

 

I Probably give it an average beating. I don't go crazy though. Just gonna go full exhaust intake and cams. Nothing too extreme. It's my daily driver so I'm just going for a fun street/ occasional strip car...