TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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.030 over =custom prom

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Old Nov 24, 2003 | 09:20 PM
  #1  
kustom71's Avatar
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From: South Jersey
.030 over =custom prom

Just wondering if you completely rebuild a tpi engine keeping it stock just boring 30 over would you still need to burn a chip for the added displacement???????????????
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Old Nov 24, 2003 | 11:35 PM
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No it will not be required.

However prom tuning will in itself provide gains over the factory tune.
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Old Nov 25, 2003 | 12:30 AM
  #3  
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The added displacement is 5 cubic inches, or about 1%. There wouldn't be much of a difference.
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Old Nov 25, 2003 | 09:16 AM
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Originally posted by OMINOUS_87
No it will not be required.

However prom tuning will in itself provide gains over the factory tune.
Agreed.
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Old Nov 26, 2003 | 11:03 AM
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thanx
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