Building A Torque Monster

[GT Drifter]

Alright, I want to build a Torque Monster 302 based stroker to go in my Jeep YJ Project.
I posted about this a long while back and came up with this combo:
CHP347 10.5:1, AFR185 (58cc), Comp XE266HR or 274, RPMII Intake, 70TB, 75MAF, 30# injectors and all other supporting pieces

So let's get some input going on here and figure something out.

 

[JBeezy53]

Sounds good, but get a custom cam that is matched to those components and is designed for huge torque curve.

 

[GT Drifter]

I think a different head, cam and intake might be in order.
Gonna have to sit down and really look at it.

 

[85_SS_302_Coupe]

There's a million ways...but something i've always wanted to see in a Jeep is a turbo diesel.....nothing like stump pulling power at super low RPMs.

 

[GT Drifter]

Ok, so some changes to the orginally posted combo.
AFR 165s and a GT40 ported intake.
For a cam, how about the Crane Powermax 2020 part #444211 http://www.cranecams.com/?show=brow...-351 C.I.&partNumber=444211&partType=camshaft

Or the Comp XE256H.

Input please!

 

[Nopantz]

why dont u throw a kenne bell on top of that 347 ...that would give u some torque

 

[JBeezy53]

AFR 165s would make more torque than the 185s but with a custom cam too it would certainly net the most gains.

 

[85_SS_302_Coupe]

You don't necessarily need to run lots of RPMs to make big torque number, but you do need cubes...so a stroker is a must. Personally i'd go with a 351W stroked as much as you can afford, with a roots supercharger on top.

 

[GT Drifter]

I'm only looking at 1500-5600rpm, not that much imo.

I don't need huge cubes or a blower. That's why I want to base the build off of a 302.

 

[poneypower89]

I'm only looking at 1500-5600rpm, not that much imo.

I don't need huge cubes or a blower. That's why I want to base the build off of a 302.

At first you said u needed a TQ monster.. which would immediately tell me you need cubes. But you just want a 302 based engine.

I think it would be best for you to post up the numbers u need to achieve and in what rpm range u would ultimately want to achieve them in.

IE. You want 300 RWTQ @ 2,500rpm... etc

It would be MUCH easier to put together a good combo with that information.

 

[GT Drifter]

Alright then.
400-450 RWTQ around 1500-2000rpm.

If that's possible.

 

[seijirou]

Alright then.
400-450 RWTQ around 1500-2000rpm.

If that's possible.

out of a 302?

No.

 

[dragnazz5.0]

yeah those kind of numbers are pushing it. why dont you just build a snotty 302 and put a huge gear in it to get you to the torque band very quickly. i know one of my teachers has a rock crawler (i know a little different than a mudding toy) that has a custom 4 spd in it and it will only run about 3 mph in first gear at 6000 rpm...but it puts like 3000 ft/lbs to the tires because of the gear reduction in the trans and diff.

 

[85_SS_302_Coupe]

You'll be lucky....almost record breaking....to build even a 351 that makes 450ft/lbs of torque at 2k RPM. At that point, you're going to be making ridiculous numbers at the upper RPM range. You're talking full blown racing motor in your Jeep.

 

[dragnazz5.0]

not necessarily. the motor will make all of its power before 2000 rpms and than fall on its face. its really all in the cam design.

 

[GT Drifter]

I don't do mudding so much. Extreme trail riding I guess you could call it. A mix of all things.

What kinda numbers can I get from a 347 stroker then?
300RWTQ? That would be fine for me.

 

[dragnazz5.0]

you can build a 347 with huge low end numbers but its gonna take some good engine building. youre best bet is gonna be to get a custom cam. tell them you want as much torque as possible as low as possible. its simply a matter of advancing the valve events farther than normal. but im sure crane or comp cams makes a good towing/low end cam. make some calls to comp cams or even summit and see what they say.

 

[GT Drifter]

Yea, I'll give that a shot.

Thanks ya'll.

 

[dragnazz5.0]

you could pm rick 91gt and he could give you an opinion also.

 

[Quikstang]

Still even then... 350RW TQ out of a naturally aspirated small block is going to be a push at less than 2500 rpms, just from what I have seen. But of course thats not much. You can build a cheap(relatively) 351 based long rod motor that will make TONS of TQ for less money than your going to spend trying to get those numbers out of a 302..... But then again... HUGe gears make for a good time too when your playin in the mud.. I'd like to hear more about whay you decide on, and the numbers ya get when you get around to it.