I just had my '99 dyno tuned after heads and cam install...and am very happy with the results. My rev limiter was set at 6500 rpm however. Can I still hook up my HPP to just raise the limiter to like 6700? It makes peak power right at 6500 (but the curve is still going up past 6500) and I would like to shift at 6500. Will the HPP erase the custom (LS1edit) tune? The tuner is gone for a week and I am just impatient to get to the track. Should I just wait 'til he gets back in town to raise the limit?

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>>SOLD<<WHITE96SS **Now have a Hugger Orange SS M6, Hooker LT's/Y-pipe/SLP 2OTL, 4.10 gear, Spec stage lll carbon clutch, lid...12.80 @ 109 W/1.95 60' MMS stage ll heads/cam coming soon!
91 Talon TSI/AWD 13.52 @100.2 1.89 60'

 

Anybody?? ...should I just wait 'til next week and have my tuner raise the limiter?

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>>SOLD<<WHITE96SS **Now have a Hugger Orange SS M6, Hooker LT's/Y-pipe/SLP 2OTL, 4.10 gear, Spec stage lll carbon clutch, lid...12.80 @ 109 W/1.95 60' MMS stage ll heads/cam coming soon!
91 Talon TSI/AWD 13.52 @100.2 1.89 60'

 

As long as you do not install power programming from hypertech programer into your pcm it should not over write any thing except the rev limiter change.

 

unless you have a custom program in your HPP the maximum rev limit it allows is 6400rpm. I know they sell custom programming for a hefty price that will let it raise it higher but its quite expensive if my memory serves me correctly, part of the headers/cam package I believe.