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Subject 13:1 A/F! What was the boost level? Max >>
     
Posted by Mike (Austin) on April 12, 2004 at 1:14 PM
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In Reply To no NOS GT2530 dyno ~600 HP, stock internals from SP posted by Scotts94z32 on April 12, 2004 at 11:14 AM
     
Message timing advance (base/mapped)? Have the SAE charts? If not, what were the conditions at the time of the runs? Any spray/fans/IC cooling? More specs besides stock block and 2530s?

Again, the usual disclaimer for the board - this is not a flame, nor hating. Those are great numbers; I'm just looking for info to make sure that we are comparing apples to apples, ar at least getting as much info as possible.

The other 2530 chart I've seen out there is on Aziator's car, again, nice strong numbers, but without some specifics, and again, not exactly apples to apples, as his charts are posted with the STD (standard) conversion applied, not the actual numbers, nor the SAE numbers. STD numbers are generally 4-5% higher than actual numbers.

My point? Some here do not understand the difference between SAE, STD and Actual numbers, nor the impact of atmospheric conditions or heat soak on the dyno numbers, nor do they understand the impact of tuning to lean A/F and/or high timing advance, vs. a richer A/F and/or more conservative timing map. I recall a conversation on the board about a year ago when even Ash was a little "fuzzy" on correction factors, although I'm sure he is quite clear on them now, including the SAE/Forced Induction implications...

old post

SAE/forced induction issues


If that info is out on the table, then we can at least be a little more clear on what we are comparing.

     
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