ITR rods, CTR pistons, B17
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ITR rods, CTR pistons, B17
If a b17 has the same deck height as a b16, has anyone ever used ITR rods in a b16, I have .25over CTR pistons, Im wondering if its gonna hit and if not will compression be to high? Using an ITR complete head. Thanks
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i dont think you can use itr rods in a b17, i thought they were a unique rotating assembly of thier own
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you cant use the 1.8 itr rods in the 1.7 si block. it is the same height as the b16a and the same bore as all the b series blocks except for the crv but the key difference is the 81.4mm stroke as to 87.2 gsr/itr blocks. The rods would be too long for that block. You could howerver sleeve and overbore the piston size and make it a 1.8 
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Thats what i thought i didnt know the exact mesurements, but i thought the strokes were different. I am having the block bored for the .25 oversized CTR pistons, so it will be a 1.8 do you think that will help alot. Also anyone want to buy ITR rods, Cheap Quick. I'll be posting them for sale. Thanks for the help.
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I thought the rods/pistons would have to be machined and as such the wrist pin would have to be moved down. This can get pricey, why not go with forged internals?
I would wait for KJ's response on this, but from what I was reading it looks like the stroke on the ITR rods is 87.2mm, and the B16a is 77.4? That's a HUGE difference and your pistons would go through the head. I couldn't find the deck height on them, so I can't be sure.
KJ?
I would wait for KJ's response on this, but from what I was reading it looks like the stroke on the ITR rods is 87.2mm, and the B16a is 77.4? That's a HUGE difference and your pistons would go through the head. I couldn't find the deck height on them, so I can't be sure.
KJ?
Last edited by Cronic; Aug 12, 2003 at 06:12 AM.
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ITR rods won't work period. CTR pistons on the b17a rods will work. To get an estimate on the compression use the c-speed calculator and add about .3-.4 points to the compression (their numbers for ctr pistons are a bit low).
OEM oversized pistons are only .25mm bigger. This isn't much at all and displacement isn't effected a noticeable degree.
OEM oversized pistons are only .25mm bigger. This isn't much at all and displacement isn't effected a noticeable degree.
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