i want to buld a motor so it more torque then hp 04 an auto any suggestions or advice

 

um build an mdx motor and fit it in the TL some how, i dunno

 

Interesting request... Can I ask why?? How about just more HP and TQ??

 

Do a search for Lookinco He did a RL swap

 

but a type-s instead of doing that ^

 

^^ It would be ALOT cheaper, but OP said he wanted to build an engine, figure he should find out what he would be getting himself into.

 

ok you can use the j32... and get parts for an j37 in there... guys on v 6 p have done j30 to j37 stroke...

ps. with honda... you will never EVER... have more hp than tq... (excluding diesel)

 

Fixed

 

thanks for the save

 

^^ Not true. My '03 Accord 2.4 was rated at 160 hp/161tq. It was the first (and only?) Honda engine to ever have more torque.

 

those numbers are to the crank
160hp at 5500 rpms
161lbs tq at 4500

130hp | 140lbs tq for the 6speed... which for the weight of the car is
and it is a 4banger at that

but granted you are right so I stand corrected

 

Yeah, it wasn't the fastest thing, esp. with the 5AT, but I will say it was definitely the SMOOTHEST 4 cyl. I've ever driven. Damn, Honda makes some of the best cars in the world.

 

Is The Type S A Direct Fit What Would I Need And Have To Change

 

I say go with a J37 stroker, 300 HP and 275 TQ, also with a few more mods and maybe a custom tuned S/C, we may be able to be in the 350 WHP range.

 

ur thinkin just like me.... im thinkin in a year project which it will b the MDX engine 3.7lt swap on my 6spd

 

why go 3.7... might aswell try a 4.0... 3.8 has already been done

 

will i have to change my tranny as well and how much should the j37 stroker run

 

if you know what you doing only the cost of the parts, but if you have no clue... then it will prove to be expensive

 

If he were to do that, max RPM would be around 6kish, with the J37, it dropped a few hundred RPM from the 3.5.

 

well if he built the motor correctly it wouldn't cause any harm to it... and redline is controlled by the engine computer anyway

 

a bigger diameter crank shaft will produce more torque but it will bring down the RPM limit. This is why GM engines typically have more toque but less RPM's than Honda. It has to do with the diameter of the crank shaft. A wide crank shaft cannot spin as fast as a smaller diameter crank shaft. But smaller crank shafts cannot produce much torque. It's just a simple principle of mechanical engineering. I think GM leaned toward a more narrow crack shaft when then move from the LT1 to the LS1.

 

For a 7 year thread bump that's oversimplifying quite a bit. There's much more to both Honda and GM's rpm limits than merely crankshaft diameter, whatever you're referring to in diameter. Maybe you mean stroke, since increasing an engine's stroke will increase torque, all other things remaining the same. However, that is not a function of the stroke, but a function of increased displacement.

It's also very safe to say that Honda's being smaller overall displacement to GM is the reason for the difference in torque.

 

well true. Everything as some impact on torque. But not like a bigger crank . Yes, over simplifying. And I dont care if it is a post from 1996

 

The problem is you are making a blanket statement that is in fact incorrect. You will make a disproportionately larger amount more torque by increasing bore rather than torque.

My point about the post is that you are oversimplifying an old post incorrectly.

Your long held believe that a 'stroker' crank will make more torque is because it is MUCH easier to add a lot of displacement via stroke rather than bore.

Look at the J32 vs J37. If you used the J37 crank in a J32, you have a J36, an increase of .4l. To achieve that merely by bore, you'd need a 94mm bore - a 5mm increase which isn't possible, even with sleeving.

Let's compare to a GM engine - the LS1 bore is 3.90 with a 3.62 stroke. Based on what you are saying, GM should increase the stroke to make more torque. Trucks need more torque, so they should have an increased stroke to make more displacement then.

My wife's Escalade has a 6.2L L92 (similar to the LS3 in the newer Camaros) and it has a 4.06 bore with an identical 3.62 stroke. Silly GM, they did it wrong! Nah, the Escalade is as fast (or faster than the TL) it runs 98 in the 1/4 at 5800lbs.

Cliff's notes: It's false to say that increasing the stroke will add 'more' torque than other methods of increasing displacement. Yes over simplifying - everything has some impact on torque, but not like a bigger bore.

 

There's no replacement for displacement.