NA/ TII counterweight..different?
simple question...are NA and TII counterweights (the one in the frontcover) the same? i just built my high comp TII and have a vibration..wonder if this has anything to do with it?
thanks pat |
ps..i used the same series (s4) na rotors, with the counterweight, eshaft, and all the rest from the TII engine.
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I think they're different, I've always read that the counterweights are unique to the specific rotors (for instance, if you swap in a set of n/a rotors to a turbo, you need to keep the n/a counterweights, front and back, with 'em)...
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they're different, just like the rears are different.
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S5 rotors are same weight, so same counter weights. The rotors just have difference compression but that doesnt affect the weights.
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counter weights must match the rotors
at least you dont' have to tear the engine apart. make sure to match up your flywheel correctly too |
Counterweights are specific to SERIES, not model (turbo or NA).
All 86-88 ctwts fit all 86-88 models, turbo or non, for example. This applies to front and rear (automatic ctwt or manual flywheel w/integrated ctwt). Why else do you think turbo aftermarket flywheels come with stock automatic NONTURBO rear ctwt's? The weight of all rotors in a series is the same. Compression ratios do differ, however. |
Originally posted by RotaryResurrection Counterweights are specific to SERIES, not model (turbo or NA). All 86-88 ctwts fit all 86-88 models, turbo or non, for example. This applies to front and rear (automatic ctwt or manual flywheel w/integrated ctwt). Why else do you think turbo aftermarket flywheels come with stock automatic NONTURBO rear ctwt's? The weight of all rotors in a series is the same. Compression ratios do differ, however. |
Right, but I figured that in light of contradictory responses from some members here, they might trust the word of an engine builder over all others.
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ok..thats what i figured...time to go hunting for other causes of vibrations...
thanks pat |
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