50 HP just from cam and tune?

[fastcar]

Is this possible?

I would really be interested in something like that.

If it were possible, it would move the power band UP. That's OK for folks with gears and high stall converters...

Imagine shifting your Marauder at 7500 to 8000 RPM. Now that would be totally cool.

Rods, crank and TC would have to be able to endure it. What RPM are the stock rods good for? Crank? PI TC?

fastcar:burnout:

[Aren Jay]

Anything is possible, but it would be a lot cheaper to add 200 horse power in the long run.

[MarauderSM]

Cams are a very expensive mod. But if you have the ca$h go for it. Post your steps. Call a company and tell them what you what. I doubt factory drivetrain will last to long over 7000rpm's.

[FordNut]

Cams are a very expensive mod.

That's what I discovered. About $1000 labor.

[Dennis Reinhart]

Is this possible?

I would really be interested in something like that.

If it were possible, it would move the power band UP. That's OK for folks with gears and high stall converters...

Imagine shifting your Marauder at 7500 to 8000 RPM. Now that would be totally cool.

Rods, crank and TC would have to be able to endure it. What RPM are the stock rods good for? Crank? PI TC?

fastcar:burnout:

UDP and a cold air kit will gain you close to the same thing along with a dyno tune

[CRUZTAKER]

UDP and a cold air kit will gain you close to the same thing along with a dyno tune


Exactly what hundreds of members have found. A good tune with a few simple and cheap bolt-ons will increase hp by atleast 35-40.

[ctrlraven]

Exactly what hundreds of members have found. A good tune with a few simple and cheap bolt-ons will increase hp by atleast 35-40.

Yep, my car stock with a K&N intake and flowmaster super 40 mufflers dynoed at 241rwhp, switched and loaded up my tune file and was at 278rwhp. Net gain of 37rwhp with just a few pushes of some buttons. One of the best mods out there if you want the best bang for your $$$. Cost of Xcal2 $379.99 divide that by the net gain 37rwhp, cost of $ per rwhp was (in my case) $10.27.

I really need to get my car dynoed soon so see where I'm at now. I do believe my numbers were off slightly, rwhp should of been a few more and rwtq should of been a few less.

[fastcar]

UDP and a cold air kit will gain you close to the same thing along with a dyno tune

Guys,

I'VE ALREADY DONE THOSE THINGS! :lol:

I got my car from 15.45 to 14.60 using gears, CAI, tune, UDPs, etc.

Now I want more. These cars should be able to make close to 100 BHP per liter. I bet most of it is in the cams.

MM from the factory is at 65 BHP/Liter
Acura TL is at 84 BHP/Liter
BMW M3 is at 103.5 BHP/Liter

50 HP from a cam change and tune should be doable.

I'll put them in and save the $1000. If they cost $1200 then that's $24/BHP, which ain't bad.

fastcar:burnout:

[ctrlraven]

Long tube headers or do a Pro 5.0 stroker kit.

[fastcar]

Long tube headers or do a Pro 5.0 stroker kit.

I understand that long tube headers are worth about 10 peak HP for about 900 not installed. Bad HP/$ ratio...

Big Block kit alone is probably worth about 50 HP, true. But at what cost? Come on, man! Those things installed must cost $6-$7K

fastcar

[FordNut]

Guys,
I'll put them in and save the $1000.

Have you seen what it takes to put cams in these DOHC engines?

NA with stock displacement the most we've been able to get is low 300's (RWHP).

[fastcar]

NA with stock displacement the most we've been able to get is low 300's (RWHP).

I don't think these folks have hot cams with a custom tune installed. I bet if they did, they would jump to 350 RWHP.

I understand the FR cams are worth about 30-35 HP by themselves, with no loss in low speed torque. Master loves them. He got 66 HP when he put them in with headers and ported heads. He still has no custom tune to take advantage of them.

Here is a link to a 4V buildup where just adding a mild Comp Cams grind netted 42 HP instantly:

http://www.compcams.com/Community/Articles/Details.asp?ID=-1491578734

In this build up, the gain NA was 57 HP:

http://www.compcams.com/Community/Articles/Details.asp?ID=-897394278

Pretty interesting, eh?

fastcar:burnout:

[CRUZTAKER]

I understand that long tube headers are worth about 10 peak HP for about 900 not installed. Bad HP/$ ratio...

Ten?
I gained nearly 40 to the rear after my install. Most of did.

In fact, before I wasted my motor, and installed a heavier one, I dynoed regularly at anywhere from 302 -307 to rear wheels with tune and bolt-ons.

[fastcar]

Ten?
I gained nearly 40 to the rear after my install. Most of did.

In fact, before I wasted my motor, and installed a heavier one, I dynoed regularly at anywhere from 302 -307 to rear wheels with tune and bolt-ons.

Wow, that's A LOT of power. I saw a graph on this site where peak gain was just 10 HP, but at low speed torque was up 100 ft-lbs (!). A lot of builders won't do headers first, because they aren't big producers - that's what I have been told.

If what you are saying is true, and duplicated by several others, I would really like to hear more about that.

Did you have your car custom tuned on the dyno with the headers to get 40 RWHP? Or, did you simply bolt them on?

Can anyone else say what they are worth?

fastcar:burnout:

[ctrlraven]

Big House netted some good numbers after installing his long tube headers.

http://www.mercurymarauder.net/forums/showthread.php?t=32800

What is your end goal for your car? All around power house? Street Sleeper? 1/4 mile track monster?

[fastcar]

Big House netted some good numbers after installing his long tube headers.

http://www.mercurymarauder.net/forums/showthread.php?t=32800

What is your end goal for your car? All around power house? Street Sleeper? 1/4 mile track monster?

I saw his thread. Wow, that's a big gain. To be fair, he did the ENTIRE system. There seems to be some controversy about his numbers, though. I may start a new thread on HP gains from headers or complete systems. This is really good stuff. Thanks for pointing me there.

After thinking about it, my short term goal is to have 350-375 RWHP, NA, and very streetable (good low speed torque). Peaky engines with an automatic and on the street are no fun to drive. I will get there little by little;)

fastcar:burnout:

[Breadfan]

I would do the entire system. After the cost of headers and their install finishing up the entire system augments the gain of the headers and is relatively cheap comparatively speaking. Yeah it can drive the price up for sure you you'll have the entire exhaust wrapped up and then your dyno tune will only have to be done once for exhaust mods.

[FordNut]

Good luck.

We've been working on these cars for several years, if you find a bunch of power the rest of us haven't been able to locate, post the info so the rest of us can learn something.

[Pops]

I am ready to build the motor for my GM and the question I have about the different cams you guys have been talking about is how are they at idle with the automatic transmission. At what RPM do they idle at? Did they create a problem for a daily street driver? What are you suggestions?

[fastcar]

Good luck.

We've been working on these cars for several years, if you find a bunch of power the rest of us haven't been able to locate, post the info so the rest of us can learn something.

Thanks for the reply. I think that camshafts deserve A LOT more exploration. Very few people are using them, and they are the basic 'program' of the engine, determining to the largest degree how the engine will make it's power.

Based on anectodal evidence, the Ford cams are worth about 30 HP alone, and the smallest Comp Cams are worth about 40 alone. One motor made 57 more (but I think that was for various other factors).

I wish we had more data on all the cams available, and some nice graphs of what they will do for a largely stock motor. That would be really great info. to have a comparison of the best from various manufacturers.

fastcar:burnout:

[KillJoy]

Our motors should not be any different than any 4.6 DOCH Mustang.

What are those guys doing?

:dunno:

KillJoy

[FordNut]

Less weight, and the majority of them are running a manual tranny.

[fastcar]

Our motors should not be any different than any 4.6 DOCH Mustang.

What are those guys doing?

:dunno:

KillJoy

Good point. We'd probably have to join a Mustang forum to try and get good info.

Yes, they weigh less, and have manuals. However, gears and a 3500 RPM TC should allow us to have some freedom of choice around cams. Also, many of them are running autos.

fastcar:burnout: