Quote:
Originally Posted by Pete
Hog we are saying the same thing,about old technology what they had to do with what they had at the time.
We are also agreeing about technology has gotten better,performance has been vastly improved from 20-30 years ago and tuning devices have been improved.
I might have to disagree on this i don't think there is a loss below 1500 rpm if so what are we talking about? Again tuning comes into play.
If you as much as graze my gas pedal heck if you sneeze on it jumps to 1500 i will put my throttle response over any stock Z's thottle response.
I do have to say that i do idle at 900 with the big Stage III intake cams .242 .450 with .224 .420 exhaust in a 350ci motor.
When i drive my Z to Bowling Green(highway) i basicly leave her in 6th anything at or above 45mph she's good anything lower i'm at idle speed.
Pete
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Cool Pete, sounds great. I was just following Mark Haibeck's lead about the under 1500rpm torque loss. I'm not sure, but maybe he was talking about removing the secondaries and then tuning for the new injector operations and not tuning to recover that under 1500rpm torque loss(if there is a loss at all)
You comments anout your highly modified/cammed 350 LT5 is very encouraging. It sounds like you car is very very driveable. I wouldn't enjoy a car that required excessive pedalling in order to pull away from stoplights.
I agree 100% with the ECM tuning. Having the proper calibration for any combo is paramount.
Sounds like removing secondaries along with "good" ECM calibration will not negatively affect drivability in the slightest, with only benefits being realized due to the improved calibration when compared to the stock late 80's early 90's calibrations.
I know that in the mid 90's OBD2 calibrations there are marked gains to be had from fueling alone, then add in the gains realized from Torque Management recalibration, makes for some very thrilling improvements in acceleration.
In the middle/late 2000's, acceleration gains from fueling/timing are much smaller, with a majority of gains coming from recalibrating PCM/ECM/TCM torque managemnt functions. In other words, in modern platforms there is less power to be found from tuning, as OEM calibrations are getting very precise. Conversely there is a lot to be found from 80's early 90's platforms.
I wish there was a way to pull the secondaries, but still allow the Power Key to function. Like could we pull secondaries, allow both injectors to run all the time, but when needed, only use 1 single injector when reduced power is requested with the key? My feeling is no, because that would result in excessivley lean mixtures with both intake runners providing air even with just the single injector functioning.
Is there any way to enable say a 4500rpm rev limit using the Power Key?
peace
Hog