fvaldes

I have a 2.3L stroker with H beam Manley rods. I am tuning the car and my tuner is sugesting that those rods are only safe up to 500 ft lbs of torque. Q 16 fuel should deliver more torque thant that so he wants to limit power to that number. Any of you have experience with this rods with hi torque motors? Thanks.

TJung

AMS saids only about 625 whp on these rods, I can't find torque too

fvaldes

my tuner said he called Manley and that they recomend no more than 500 ft lbs torque to be safe. He said he has seen cars with those rods with much more than these number and that they have been fine but he also said he had seen once a broken rod like those because of exces torque and left it to my decision. I think I will stick with manleys recomendation, unless someone has hands on experience with them and suggests the contrary

haseeb

iTrader: (2)

i think 500 is too much ..

Ted B

iTrader: (6)

The reason why is because those H-beam rods, like Eagle, are Chinese made

Levar

iTrader: (85)

Very interesting thread as I recently threw a rod myself about five days ago and I only have 394wtq.

fvaldes

The same Manley H Beam Rod?

sktng22

iTrader: (3)

id go with i beams to be safe

fvaldes

Well,,,, I would go with I Beams too, but the thing is that the motor was recently built with the H Beams and it is ready to be tuned. I am not planning on taking the motor off the car to install new Rods. It was my mistake not to go with the I Beam Rods and who built my motor did not suggest that I should do I Beams. It is dissapointing that I am limited to a certain ammount of power only because I put the wrong Rods in there. Lesson learned !

JohnBradley

iTrader: (30)

Remember whp is immaterial, 625whp, 750whp, etc. We have made all sorts of power on these rods but our torque is always under 500 ft lbs. I havent had any break but without much dyno sheets and then resulting failure point on the chinese H beams its hard to say what their ultimate failure point is. I would think its higher than that if the wimpy stock rod seems to be good to 400-430.

These rods in one of our turbo hondas is 751whp @ 9500 +/- but only makes 429 ft lbs. It has gone over 2 years at this level so I wouldnt be concerned about pushing an Evo past that.

erald01

iTrader: (5)

for higher torque (since torque is instantaneous and puts a lot of load at once on everything) i would go with I beam rods because they are stronger and more reliable.

Levar

iTrader: (85)

No, sir. I was on the stock rods sitting right at the threshold of 394wtq.

Yes, indeed. And also keep in mind that all blocks aren't identical so I wouldn't chance it as I recently learned that.

Point well taken.

JohnBradley

iTrader: (30)

Thats very true. It seems my 400 ft lb suggestion gets quoted as a rule alot by people I talk to and what I read. I have seen alot of cars make 400 ft lbs for a long time without issue, but I have seen them biff out at far less. Too many variables to say that this will work or that will work. Better to keep it sane (hape of powerband plays a role in this as well) and save for the bottom end than have to buy a block at the same time.

SOEuro

iTrader: (29)

tell your tuner to keep the TQ down on the tune and up the HP

awd2gen

iTrader: (4)

with 2.3l i would stay at manley recomendation. Your gonna get alot of torque very early and to much all at once could yield some bad results.