I need more Power. Any Idea's?

I've got a 45 MB with a F Head a T-90, spicer 18, spicer 44 rear end. (Basicly it has the guts of a 59 Cj5) I want to get some power of the stock motor I heard some where they can be turboed using a low boost turbo charger. I was thinking of making a header, or even going as far as adding a NOS system, but that idea bring to my mind a head blowing through the hood of the Jeep. On another note I was wondering what kind of fuel economy who can commonly expect from these motors. My Jeep has a swapped single barrell Holly carb on it that as far I as can figure came off a forklift (that could be also one the reason it dosen't seem to have a lot power) 31's and 5.38's but it has the warn overdrive unit and I get about 12 mpg out of her. Any suggestion you could me would be greatly appreated.

 

try to find a supersonic head... i just bought one a couple weeks ago for 25$ from another forum... i have occasionally seen them go for cheap on ebay as well. they will bump the compression of your motor slightly. Aside from that, you could try to find a mid 60-s ford single barrel carb from a 6 cyl. motor. My carb is from a ford falcon... pumps out a little more gas than the stock carter carb. header is a good idea as well, and a straight through exhaust wouldn't hurt either.

 

You have to remember that the F-head only makes 72 hp factory fresh which is already 12 more than your stock engine. If you really want something with power sell the mb and buya cj5 with the buick v6. Dont cut up the mb. Swaping back to the orginal drivtrain for someone right now would be easy but if you do an engine swap it will kill all the collertor value.

 

Here are some photos of a turbo'd F-head that a member (55M38a1) has. He did have a video but its gone. You might pm or email him and he can tell you more.



Found another video: just bolted up, not finished plumbed up yet.
http://s67.photobucket.com/albums/h302/55m38a1/?action=view&current=MVI_0656.flv

 

The rest of the turbo pics.

 

Whether you have a L-head or a F-head, IMO the most economical way to boost power would be a motor swap. V6s are popular, but there are also several modern inline 4s that would fit nicely. Look for the GM adapter with a long input shaft on the used market. With the proper bellhousing, this would allow you the choice among dozens of engines, including four inline 4s and three V6s that I can think of.

Nothing wrong with the L/F134 as such, but I don't think there were ever very many aftermarket speed parts. You'll be depending on your own ingenuity to design and make or adapt speed parts.

 

I was Looking for power for hills, wheeling and to just increase it's drive ablity. Mostly the Jeep finds it's self playing in mud hole and trail driving or hauling me around from point a to point b and doing farm work.

 

Take it from me, a well tuned flathead is plenty. correct the carb and let it breath with a good filter system. I had to re-tune my carb after adding the K&N. I picked up about 3-5 MPH on the open road!

I joined this forum back in 2003 to because I wanted to swap my flathead to a V6. Although the V6 is a nice little package, I really began to like the little 4 and it has proved itself offroad. Granted, slow on the dunes, but it will climb trees! 8)

stay away from NOS, you will melt a piston. Turbo projects are fun but may involve years of work (ask me how I know)

 

Hey Jon, not to thread jack, but what sort of air filter did you end up running?

 

I have two types actually. One style currently on it is clamped a cone style right off the end of the stock air horn.

The other style is better looking, which is a chinese brand 4" mini air cleaner assembly with a traditional K&N swapped in. 8) That was the one I originally mounted then couldnt get the idle down (it was breathing now)

 

Do you have a generator or alternator? Not sure about the generators, but with the alternators, you can install a switch inline to the sense circuit and kill the alternator for the hill climb. Could free up around 5hp, depending on what you've got.

 

I have added a Solex type carb, header, and duel exhaust. I have a modified air intake with a paper air filter. After jetting the carb richer, this thing really hauls the mail. For an F head anyways. I can pull most any hill on the hiway in hi gear with 32x950x15 swampers. I can run down the road 3000-3400 rpm with ease. It gets up to speed much quicker than before. My next upgrade is removing the engine mounted fan and installing an electric one. This will free up some more power. Anywhere from 5-15 depending on what you read. It will also quiet the jeep down due to the fan is so noisy. I will update when fan is installed. I am most happy with every upgrade that has been done. I am also rebuilding the stock distributor and checking the rate of mechanical advance and adjust as needed. I am also thinking of trying an offset keyway on the crank to advance cam timing for a boost in low end power. So many things to do and so little time! Sorry for the long post!

 

So far, my biggest overall increase was timing, and I mean big: set points with dwell meter, NOT feeler gauge then, advance initial timing to your liking above 5° (I'm running 8° for now).

Next was new exhaust (old system was rotten anyway). I went with 2" in the stock configuration and a generic turbo muffler. Siginicant difference in high speed pulling power and maybe a slight increase in bottom end.

Mine had a cone K&N on it when I got it so I don't know how much that added, if any.

Today I'm going to pickup a used MSD 6a box and see if makes any diff. I'll report back to my thread on that.

Also anxious to hear about the electric fan.

Regarding the alternator, can you use a switch (or relay) on a one-wire alternator?

 

Not sure, never fooled around with one too much. With the CS series, sense and regulator are internal, I believe potential is being produced almost as soon as the alternator starts spinning, whereas with the SI series, there is an RPM switch and a sense wire.

 

I appreciate the reply. I know so little about such things that I don't even know what I have or what you're talking about, but