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ike84 · 04-11-2023, 05:53 PM

Listen to trk's advice. You're approaching a "tuner" type problem but without enough data. You need to know where your afrs are and what your ecu is doing. If you're leaning out at high rpms, go after the injectors. I wouldn't have them reman'd though - I wrote up a post about retrofitting brand new Bosch injectors from the later 986 into the earlier cars. It's take a few minutes and will save you a ton of $ if that is the problem.

Honestly though you haven't really proven that you have a problem. Under excellently controlled conditions with cars that have well published aero stats and other specs (that Porsche NEVER LETS LEAVE THE FACTORY) the vbox system can reproduce very accurate results. You are estimating a lot of variables that can easily skew your final results, and unless you run it at sea level for comparison then you're really just mentally masturbating and throwing a lot of $ at it along the way. Unless I missed something?

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04-11-2023, 05:53 PM	#7
ike84 Registered User Join Date: Oct 2020 Location: KY Posts: 1,213	Listen to trk's advice. You're approaching a "tuner" type problem but without enough data. You need to know where your afrs are and what your ecu is doing. If you're leaning out at high rpms, go after the injectors. I wouldn't have them reman'd though - I wrote up a post about retrofitting brand new Bosch injectors from the later 986 into the earlier cars. It's take a few minutes and will save you a ton of $ if that is the problem. Honestly though you haven't really proven that you have a problem. Under excellently controlled conditions with cars that have well published aero stats and other specs (that Porsche NEVER LETS LEAVE THE FACTORY) the vbox system can reproduce very accurate results. You are estimating a lot of variables that can easily skew your final results, and unless you run it at sea level for comparison then you're really just mentally masturbating and throwing a lot of $ at it along the way. Unless I missed something? Sent from my SM-N975U using Tapatalk __________________ 2000 Box Base, Renegade Stage 1 performance mods complete, more to come When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...