fitting air to air
#1
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is it an easy job? does it replace and plug into the amel valve is? what are its advanteges? to get better MAP and hold better boost?
#4
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The "air" injectors you refer to are NOT AIR INJECTORS.
They are in fact CNG, compressed natural gas injectors, but do the job effectively as air injectors, although they were never designed as such by bosch.
Touted as "better" by those that use and sell them, makes you wonder what controlled the boost perfectly well before "air" injectors existed, if I was being cynical I'd think it was just another gimmick like closed loop!!
tabetha
They are in fact CNG, compressed natural gas injectors, but do the job effectively as air injectors, although they were never designed as such by bosch.
Touted as "better" by those that use and sell them, makes you wonder what controlled the boost perfectly well before "air" injectors existed, if I was being cynical I'd think it was just another gimmick like closed loop!!
tabetha
#6
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Over to you sir, please explain why a air to air is needed and why a amal is seemingly so bad ?
Please also show me where I said the amal was as good, I've re read it several times and can't see it ?
I did say the amal did the job perfectly well before before the next "thing" came along, or are you saying every amal valve equipped car is doomed to failure ?, does that include the ones you've set up on amal valves ?
It may well be that certain cars due to spec would benefit from air to air over amal, but doesn't mean amal can't do the job perfectly well on the majority does it ?
tabetha
Please also show me where I said the amal was as good, I've re read it several times and can't see it ?
I did say the amal did the job perfectly well before before the next "thing" came along, or are you saying every amal valve equipped car is doomed to failure ?, does that include the ones you've set up on amal valves ?
It may well be that certain cars due to spec would benefit from air to air over amal, but doesn't mean amal can't do the job perfectly well on the majority does it ?
tabetha
Last edited by tabetha; 26-02-2011 at 05:19 PM.
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#8
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You benefit more from gimmicks!!
A "gimmick" most would think of would be something that is not needed, or beneficial to their particular car, like say a T88 on a bog std sierra cossie, so this would be a gimmick to most but to a few invaluable, what did MSD do before the air to air come along ?, did you use with perfectly good results the amal valve, or have you never ever set a car up on a amal valve ?, or did those that you set up on amal valves all fail badly ?
tabetha
A "gimmick" most would think of would be something that is not needed, or beneficial to their particular car, like say a T88 on a bog std sierra cossie, so this would be a gimmick to most but to a few invaluable, what did MSD do before the air to air come along ?, did you use with perfectly good results the amal valve, or have you never ever set a car up on a amal valve ?, or did those that you set up on amal valves all fail badly ?
tabetha
Last edited by tabetha; 27-02-2011 at 09:54 AM.
#13
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With Air Injectors on Weber we have 255 steps from open to closed so can control just how much air is allowed to flow to the wastegate at ANY RPM. So as boost falls, we can actually close the wastegate a little and speed up the turbocharger to compensate. On a modern ecu we have over 65000 values to play with.
Another bonus is we can keep all air from getting to the wastegate at all by closing the injectors at low revs and boost levels, thus speeding up the spool and arrival of peak boost pressure.
I did say the amal did the job perfectly well before before the next "thing" came along,
It may well be that certain cars due to spec would benefit from air to air over amal, but doesn't mean amal can't do the job perfectly well on the majority does it
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Last edited by Stu @ M Developments; 01-03-2011 at 12:21 PM.
#15
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Tabs,
Not one to defend but get a grip pal, this harbouring of negativity towards MSD is a little trivial pal and certainly spoils my passionford enjoyment...MSD and Stu didn't invent or even overtly promote Air Injectors, we used them 15-16 years ago, so they're hardly a gimmick, they provide a more superior boost control, not necessary on some road cars I concur but never the less a viable upgrade to any modified cossie.
Feel the love a little pal and try and bury the hatchet, negativity breeds hate and hate is just totally unnecessary on car enthusiast forum..there are enough people out there trying to cast aspersions towards car enthusiasts without one of our own being malicious.
All IMO...lol
Ian
Not one to defend but get a grip pal, this harbouring of negativity towards MSD is a little trivial pal and certainly spoils my passionford enjoyment...MSD and Stu didn't invent or even overtly promote Air Injectors, we used them 15-16 years ago, so they're hardly a gimmick, they provide a more superior boost control, not necessary on some road cars I concur but never the less a viable upgrade to any modified cossie.
Feel the love a little pal and try and bury the hatchet, negativity breeds hate and hate is just totally unnecessary on car enthusiast forum..there are enough people out there trying to cast aspersions towards car enthusiasts without one of our own being malicious.
All IMO...lol
Ian
#22
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Live Mapping for the AI's is the ultimate solution as boost depends on pressure drops through coolers, wastegate loading, actuator spring rating and of course the AI units themselves and their associated air bleed calibration holes but we can supply most calibrations by mail order no problem as long as we know EXACTLY what your using.
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does anyone know if AI can be controlled by a Autronic SM4 unit?
also, whats really the diffrence between single and twin AI? other that the number of injectors obviously.
also, whats really the diffrence between single and twin AI? other that the number of injectors obviously.
#25
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http://shop.motorsport-developments....3003-302-p.asp
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