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Crazy Dart
PostPosted: Wed Sep 19, 2007 11:17 am 
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For the 225 Slant six for 1/8th mile drag racing...

The 198 rod with a 2.2L forged piston or the 225 rod with standard piston?

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Last edited by Crazy Dart on Wed Sep 19, 2007 8:10 pm, edited 1 time in total.

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Doc
PostPosted: Wed Sep 19, 2007 4:48 pm 
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Location: Working in Silicon Valley, USA
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Quote:
For the 225 Slant six for 1/8th mile drag racing...

The 198 rod with a 2.2L forged piston or the 225 rod with standard piston?
The 198 con rod with 2.2 piston / rings is a much lighter assembly, has less ring/piston friction and the 7 inch long con rod gives you a better rod ratio. A "long rod" 225 SL6 will make more power then a conventional 225... that is why the racer's use this combination.

The downside... 198 con rods and 2.2 forged pistons are hard to get these days.
DD
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Crazy Dart
PostPosted: Wed Sep 19, 2007 8:04 pm 
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TBI Slant 6
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Joined: Tue Sep 18, 2007 12:35 pm
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Location: Blounts Creek, NC
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Quote:
Quote:
For the 225 Slant six for 1/8th mile drag racing...

The 198 rod with a 2.2L forged piston or the 225 rod with standard piston?
The 198 con rod with 2.2 piston / rings is a much lighter assembly, has less ring/piston friction and the 7 inch long con rod gives you a better rod ratio. A "long rod" 225 SL6 will make more power then a conventional 225... that is why the racer's use this combination.

The downside... 198 con rods and 2.2 forged pistons are hard to get these days.
DD
Thanks Doc...

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