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-   -   Dynod the 391 today (https://www.corvetteforum.com/forums/c4-zr-1-discussion/4265397-dynod-the-391-today.html)

EvanZR1 04-20-2019 07:12 PM

Dynod the 391 today
 
Was at a dyno day today, and got a couple of runs in. No wideband, so I still need to do another run somewhere with that so we can finalize the tune. As is, it's running very rich with conservative timing, but numbers were 494HP & 442TQ. Pete thinks there's probably another 20HP in it with proper tuning.

Here's a video of the pull:


Tom400CFI 04-20-2019 10:20 PM

Damn...those are good numbers. Car should run right into the 10's...if you do that sort of thing. :)

Rkreigh 04-21-2019 05:50 AM


Originally Posted by Tom400CFI (Post 1599263983)
Damn...those are good numbers. Car should run right into the 10's...if you do that sort of thing. :)

FYI in the LPE 390 the car pulled the same numbers at 12.8 or 13.0 to 1 AF ratio but give it what it wants and see


500 here you come! more specs on the engine! Very good numbers indeed.

cv67 04-21-2019 09:31 AM

Nice...what all is done to it? Def 10 sec capable

EvanZR1 04-21-2019 09:35 AM

Engine fully built by Pete in Chicago: 391 closed deck block, fully ported (itop end and heads), Pete’s stage 2 cams, 12:1 compression.

Zerski 04-22-2019 02:44 PM

Want to sell it?

EvanZR1 04-22-2019 02:54 PM


Originally Posted by Zerski (Post 1599271857)
Want to sell it?

Everything's for sale at the right price. :D


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