Re: No low end torque

Posted by ChadS on December 17, 2006 at 11:14:13 from (66.228.96.171):

In Reply to: Re: No low end torque posted by North Dakota H Puller on December 16, 2006 at 17:03:03:

Do you knowwhat the lobe separation angle is on that camshaft?? What you have is the typical low compression engine,,, More compression will surely wake it up torquewise. You need to be in the area of 150-175 psi at cranking speed. Its gonna be hard to do with flat top pistons. Id look for a set of high domed pistons, that will help alot, if the engine has been recently rebuilt,, you can drop the pistons in the sleeves it has already,, just hone them out once more, unless they are really super worn,,, then replace them. Id also bet, it may have cast iron pistons,,,,, very heavy in weight,, with low compression, it will die off quicker when the load is heavy. If it was higher compression, it would help make some extra torque with the heavyweight pistons,,, but still,, no subsitute for aluminum pistons. Id think about pulling apart and upgrading the piston/sleeve kit,, fairly inexpencive to do,,,, One thing I have done in the past was to put the thick H sleeves in another block, and sent it to be bored,, and remove them and put them back in the engine you have,, that eliminates having to remove the engine from the frame and be done inframe,, which saves time,,,, Did that to a Super H and went up to the 350 pistons,,,, the H wont go that big,,, and still have sleeves,,,, Ive seen 300 pistons in sleeveless H blocks with a little honing of the block,,,,, Chad

Replies:

• Re: No low end torque North Dakota H Puller 13:16:16 12/17/06 (3)
  • Re: No low end torque ChadS 10:41:48 12/18/06 (2)
    • Re: No low end torque North Dakota H Puller 10:59:42 12/18/06 (1)
      • Re: No low end torque ChadS 13:16:21 12/18/06 (0)

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