hey guys, so i got a vr4 motor in a GSR running a microtech. Now, has anybody got the microtech to trigger the butterfly to open/close to get the full benefits of the cyclone intake?
As i have been playing around with the cyclone, yes indeed there is a improvement low down in the revs but once the turbo boosts up the butterfly closed/or opened doesnt boost past 8 psi(standard) and feels...crap pretty much high in the rev range.
Once we disconnected the actuator top end revs increased dramatically and boosted to 10psi but idle isnt great and slow on the lower side of the rev range.
So if anyone can help, that would be awesome.
thanks guys
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#1
Posted 21 October 2012 - 03:45 PM
RicKii``
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#2
Posted 21 October 2012 - 10:03 PM
vr4_evopwr
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There are a lot of different microtechs, so which one are you using ? I have never seen a microtech control secondary functions like that ever. 
Have a look in this thread may have some answers in there for you http://www.cordiapow...6dd46f9bae0b61c
Have a look in this thread may have some answers in there for you http://www.cordiapow...6dd46f9bae0b61c
#3
Posted 21 October 2012 - 10:29 PM
Gianni
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It's a microtech lt-8.
I would think have it running off vac so it's closed no throttle and open under full throttle. Then get it tuned like that. The tune will be able to bring the ratios good. Currently motor is tuned to an Evo 3 motor so the air flow will be very different with shorter runners and smaller ports, and no butterfly flange. So it's probably fluctuating between rich and lean. Retune with the bigger ports, runners and butterfly flanges should make it a lot better.
Or put the na mani on. But will still need tune.
I would think have it running off vac so it's closed no throttle and open under full throttle. Then get it tuned like that. The tune will be able to bring the ratios good. Currently motor is tuned to an Evo 3 motor so the air flow will be very different with shorter runners and smaller ports, and no butterfly flange. So it's probably fluctuating between rich and lean. Retune with the bigger ports, runners and butterfly flanges should make it a lot better.
Or put the na mani on. But will still need tune.
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Gianni
#4
Posted 21 October 2012 - 11:03 PM
jack be nimble
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You need to do 2 power runs and log the rpm. 1 with runners open and 1 with runners closed. Overlay the 2 and pick your switching point.
Do you have any spare outputs on the ecu?
I was thinking it could be a boost trigger. Like switch the runners anytime over 5psi boost?
Do you have any spare outputs on the ecu?
I was thinking it could be a boost trigger. Like switch the runners anytime over 5psi boost?
4g93t jumbuck conversion. PRANGED 18/3/12, CHECK MY MEMBER RIDES Page 11. no serious human injuries.
ON THE ENGINE STAND. g4cs 2.4l + Gt35r. PLUS: auto conversion + Awd coming.
thanks for parts and help: BMGTZ, EVOCPE, cwolf, Benozi, Jamo-GSR, 1JUM2NV, RXVII..much appreciated, cheers guys.
Aerodynamics are for people who can't build engines. —Enzo Ferrari
REMEMBER: you cant polish a turd, but you can roll it in glitter.
ON THE ENGINE STAND. g4cs 2.4l + Gt35r. PLUS: auto conversion + Awd coming.
thanks for parts and help: BMGTZ, EVOCPE, cwolf, Benozi, Jamo-GSR, 1JUM2NV, RXVII..much appreciated, cheers guys.
Aerodynamics are for people who can't build engines. —Enzo Ferrari
REMEMBER: you cant polish a turd, but you can roll it in glitter.
#5
Posted 28 October 2012 - 02:21 AM
JETGSR
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or rpm based - ie: could use a pwm as tacho output to drive the actuator
GOD = An imaginary friend for grown-ups!
Aussie GSR CC Lancer - stroked to 2.4ltr - 275kws low boost, std fuel no cheating!
Now fitted with some serious AP 4pot 330mm stoppers!
Also proud owner of some nice new ARSE KICKING BOOTS - No FleaBAY crap!
on a lazy day 12.001 @ 117mph with way too much wheel spin
Aussie GSR CC Lancer - stroked to 2.4ltr - 275kws low boost, std fuel no cheating!
Now fitted with some serious AP 4pot 330mm stoppers!
Also proud owner of some nice new ARSE KICKING BOOTS - No FleaBAY crap!
on a lazy day 12.001 @ 117mph with way too much wheel spin
#6
Posted 28 October 2012 - 08:34 AM
jack be nimble
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or rpm based - ie: could use a pwm as tacho output to drive the actuator
I think airflow should be the real trigger, if possible. (boost as second and probably easier option). Cause part throttle and high revs (cruising in top gear) may be ok on the small runners. But full throttle and full boost at same revs may need big runners to breathe.
4g93t jumbuck conversion. PRANGED 18/3/12, CHECK MY MEMBER RIDES Page 11. no serious human injuries.
ON THE ENGINE STAND. g4cs 2.4l + Gt35r. PLUS: auto conversion + Awd coming.
thanks for parts and help: BMGTZ, EVOCPE, cwolf, Benozi, Jamo-GSR, 1JUM2NV, RXVII..much appreciated, cheers guys.
Aerodynamics are for people who can't build engines. —Enzo Ferrari
REMEMBER: you cant polish a turd, but you can roll it in glitter.
ON THE ENGINE STAND. g4cs 2.4l + Gt35r. PLUS: auto conversion + Awd coming.
thanks for parts and help: BMGTZ, EVOCPE, cwolf, Benozi, Jamo-GSR, 1JUM2NV, RXVII..much appreciated, cheers guys.
Aerodynamics are for people who can't build engines. —Enzo Ferrari
REMEMBER: you cant polish a turd, but you can roll it in glitter.
#7
Posted 28 October 2012 - 03:01 PM
RicKii``
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so in saying that, would it be just better to get the actuator mod done which is driven off boost pressure?
why do these guys use T25 actuators? wouldnt it be more beneficial to open it up at earlier PSI?
why do these guys use T25 actuators? wouldnt it be more beneficial to open it up at earlier PSI?
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