Drivetrain My intake is better than yours
6th Gear
Joined: Sep 2004
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Originally Posted by obehave
Dayum! 2 hours later and you haven't been fired upon.
Father's Day time out????
Father's Day time out????
I have a drawer full of dyno sheets and I don't know if I will ever do another one.... Look at the DR. he is probably conducts the closest to scientific proceedure that we have and he is the first to say how difficult it is to dyno a Mini with repeatable accuracy closer than pretty loose +/- tolerances. (btw Randy Webb and Peter H feel the same way)
due to all the factors that are well known to those of us who have followed all the dyno reports and consequent flame jobs can attest to this,...it is damn near impossible to get repeatable numbers. (IMO) On one day in Birmingham, AL., we saw drops of 10 hp from one run to the next......
that being said...... only a few of us who have the HDI also had the Alta....since the difference in performance is within the +/- resolution of the testing proceedure all I can say is my car feels better with the HDI.....small but better...the Alta is no slouch....it is normal for products to have life cycles and every product at the top has people shooting at it....while I am not claiming the Alta is done for...it now has some very strong competition.
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6th Gear
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From: Hampton, VA
Originally Posted by SpiderX
It fits...the two middle "bolts need to be changed to a flatter design than provided
With not a single Thank You to yours truly I might add
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6th Gear
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From: Hampton, VA
Originally Posted by SpiderX
I re-read this whole thing...bottom line ....guy makes a change...likes it ... provides a dyno sheet .... is up front about the testing proceedure.... does not offer it up as scientific data.... just "A" data point for discussion and he feels like his car is running better after the change.....
I have a drawer full of dyno sheets and I don't know if I will ever do another one.... Look at the DR. he is probably conducts the closest to scientific proceedure that we have and he is the first to say how difficult it is to dyno a Mini with repeatable accuracy closer that pretty loose +/- tolerances. (btw Randy Webb and Peter H feel the same way)
due to all the factors that are well known to those of us who have followed all the dyno reports and consequent flame jobs can attest to this,...it is damn near impossible to get repeatable numbers IMO on one day in Birmingham, AL we saw drops of 10 hp from one run to the next......
that being said...... only a few of us who have the HDI also had the Alta....since the difference in performance is within the +/- resolution of the testing proceedure all I can say is my car feels better with the HDI.....small but better...the Alta is no slouch....it is normal for products to have life cycles and every product at the top has people shooting at it....while I am not claiming the Alta is done for...it now has some very strong competition.
I have a drawer full of dyno sheets and I don't know if I will ever do another one.... Look at the DR. he is probably conducts the closest to scientific proceedure that we have and he is the first to say how difficult it is to dyno a Mini with repeatable accuracy closer that pretty loose +/- tolerances. (btw Randy Webb and Peter H feel the same way)
due to all the factors that are well known to those of us who have followed all the dyno reports and consequent flame jobs can attest to this,...it is damn near impossible to get repeatable numbers IMO on one day in Birmingham, AL we saw drops of 10 hp from one run to the next......
that being said...... only a few of us who have the HDI also had the Alta....since the difference in performance is within the +/- resolution of the testing proceedure all I can say is my car feels better with the HDI.....small but better...the Alta is no slouch....it is normal for products to have life cycles and every product at the top has people shooting at it....while I am not claiming the Alta is done for...it now has some very strong competition.
Can't seem to sell my old Alta though
Any takers??? Cheap...
6th Gear
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Originally Posted by jlm
here is what I find interesting: right around 63-6400 the alta takes a dive, hence its hp peak is lower, though the torque peaks are the same. that rpm area is a common spot for a drop due to timing retard. not saying this is the case, but a bit of knock will do exactly that. I'm wouldn't be so sure there is a significant difference until you can demonstrate that the drop is repeatable for the Alta.
4th Gear
Joined: Aug 2005
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Reading all of this is making my head spin...
so overall... the HDI or Alta... all a matter of preference???
I am thinking of going with the alta...I like the looks.. but a difference of hp may make me go HDI...
I like the foam filter of the HDI..just not the box....
maybe mini madness cai... hummm
so overall... the HDI or Alta... all a matter of preference???
I am thinking of going with the alta...I like the looks.. but a difference of hp may make me go HDI...
I like the foam filter of the HDI..just not the box....
maybe mini madness cai... hummm
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6th Gear
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From: Hampton, VA
Originally Posted by SpiderX
I goy a chance to hear the M7 exhaust today and I can tell you that myself and about 6 other Mini owners agreed that that is the lowest pitch exhaust note out of a Mini by far........sounds like the Mini is a 300 lb line man from the NFL
I'm hoping someone around here buys one.
6th Gear
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Originally Posted by obehave
Not that it would make much difference in tone but was the system running a header?
I'm hoping someone around here buys one.
I'm hoping someone around here buys one.
Originally Posted by SpiderX
My post was supposed to go in the M7 exhaust thread and I posted it here by mistake and I have tried to edit it out twice.......my apologies....looks like I did it
those looking to get an intake, I say but one with a filter then box and insulate it, unless all you want is noise, then just go HAI.
6th Gear
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Originally Posted by motor on
Air in air out its all the same
those looking to get an intake, I say but one with a filter then box and insulate it, unless all you want is noise, then just go HAI.
those looking to get an intake, I say but one with a filter then box and insulate it, unless all you want is noise, then just go HAI.
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