twin charging, 'I want, it and I want it now!
twin charging, 'I want, it and I want it now!
D.F!ANT cheers guys,
yea i may message him to find out how he did it, thanks!
tbh that was my contingency plan anyway, contact style switch on the valve itself. not ideal but at least it would ease the manual switch installation, i was thinking of using a throttle cable still, but going to my redundant bonnet lever, i love retrofitting like that lol!
are most people on here lexus nuts then
Though Partick just had a switch linked to the clutch, I am sure. If you want it to switch automatically when your turbo comes on boost, I can't see any other way than some kind of contact switch linked to the bypass system?
Dark Samurai Dean the club is over 2 now
I was going to say that! 20th June '09 is when I joined
Many of the forum's most regular visitors, and most prolific posters, are Lexus drivers, due to how the club was formed. Plus, the wealth of Lexus knowledge on here attracts more of them too. Though many of them, like myself, have experience of various Jap metal over the years. But the club is ever expanding, and there are more non-Lexus drivers of other Jap marques than ever now.
![[Image: tempsig2.jpg]](http://i121.photobucket.com/albums/o227/84stoney/tempsig2.jpg)
ad: It was a tough call to make, but the Supercharged IS200 is being retired. ad:D.F!ANT cheers guys,
yea i may message him to find out how he did it, thanks!
tbh that was my contingency plan anyway, contact style switch on the valve itself. not ideal but at least it would ease the manual switch installation, i was thinking of using a throttle cable still, but going to my redundant bonnet lever, i love retrofitting like that lol!
are most people on here lexus nuts then
Though Partick just had a switch linked to the clutch, I am sure. If you want it to switch automatically when your turbo comes on boost, I can't see any other way than some kind of contact switch linked to the bypass system?
Dark Samurai Dean the club is over 2 now
I was going to say that! 20th June '09 is when I joined
Many of the forum's most regular visitors, and most prolific posters, are Lexus drivers, due to how the club was formed. Plus, the wealth of Lexus knowledge on here attracts more of them too. Though many of them, like myself, have experience of various Jap metal over the years. But the club is ever expanding, and there are more non-Lexus drivers of other Jap marques than ever now.
ad: It was a tough call to make, but the Supercharged IS200 is being retired. ad: glad its cleared up now.
Dark Samurai
04-07-2018, 06:46 AM #12Glad you updated your sig mate, had me a bit baffled too glad its cleared up now.
then that made me remember my old b20a6 mk1crx (that thing was scary), i had to use an extra injector which was firing from vaccum, so i did a search for the type of switch used in that and low and behold they are common as muck, I just ordered a hobbs adjustable, boost actuated switch for 15squid from the yanks! purpose made and perfect (hopefully)
sometimes i wonder what is wrong with me, forgetting things that i have done like that! but then remembering the lyrics perfectly to themes like 'pole position' its like my subconsious prioritys are twisted, i wonder if thats the qualtiy of british roads?!? anyone got a psyhological iron?!? oh wait, here's one
moke:
yea cheers, makin the heat resistant comment got me thinkin about magnetic switches, as they are sealed and i have some somewhere.
then that made me remember my old b20a6 mk1crx (that thing was scary), i had to use an extra injector which was firing from vaccum, so i did a search for the type of switch used in that and low and behold they are common as muck, I just ordered a hobbs adjustable, boost actuated switch for 15squid from the yanks! purpose made and perfect (hopefully)
sometimes i wonder what is wrong with me, forgetting things that i have done like that! but then remembering the lyrics perfectly to themes like 'pole position' its like my subconsious prioritys are twisted, i wonder if thats the qualtiy of british roads?!? anyone got a psyhological iron?!? oh wait, here's one moke:
he mentioned a pressure switch to controll the valve, i dont know how to quote properly yet so did it like this!
so i was planning on setting her up with trial and error, having the bypass valve running of another ms-ibc controller, i can adjust that easily and get it set up to a point where i have no/little boost drop during the switchover on constant throttle, but also i don't want to compound the boost!
so yea it has to be smooth and precise! problems will occur in on-off throttle situations, so i thought i was gonna have to dump air, (i want to recirculate idealy!)
low and behold a pressure switch is an interesting idea, may actually give me more progressive controll over the valve as i'll be taking readings from where ever in the system i want, rather then the manifold like my baileys! and i'll have nice fast electrical stepper motor controll!
hmmmm, but then i would be using an electrical signal to controll the bypass, rather then it being mechanical, taken from boost levels, (bare in mind im making my by-pass and doing a budget build) which would totaly change my valve designs!
i'm gonna be getting a late night again tonight workin that one out, cheers buddy lol!
I'm getting good help here guys, most responsive forum i'v been on yet, tbh i only use swjcc too, and they recommended you lot to me for these tuning ideas :thumbup:
oh my dayz, 2tounges post on p.lindbloms has made me think, didn't wanna hi-jack thou.
he mentioned a pressure switch to controll the valve, i dont know how to quote properly yet so did it like this!
so i was planning on setting her up with trial and error, having the bypass valve running of another ms-ibc controller, i can adjust that easily and get it set up to a point where i have no/little boost drop during the switchover on constant throttle, but also i don't want to compound the boost!
so yea it has to be smooth and precise! problems will occur in on-off throttle situations, so i thought i was gonna have to dump air, (i want to recirculate idealy!)
low and behold a pressure switch is an interesting idea, may actually give me more progressive controll over the valve as i'll be taking readings from where ever in the system i want, rather then the manifold like my baileys! and i'll have nice fast electrical stepper motor controll!
hmmmm, but then i would be using an electrical signal to controll the bypass, rather then it being mechanical, taken from boost levels, (bare in mind im making my by-pass and doing a budget build) which would totaly change my valve designs!
i'm gonna be getting a late night again tonight workin that one out, cheers buddy lol!
I'm getting good help here guys, most responsive forum i'v been on yet, tbh i only use swjcc too, and they recommended you lot to me for these tuning ideas :thumbup:
I believe the electro magnetic clutch was fitted to Merc Kompressors using the Eaton M62. This can be switched on and off using your boost switch.
He is talking about using an electronic boost controller to give him in car adjustablility to 'tune' the changeover point to minimise boost drop.
I believe the electro magnetic clutch was fitted to Merc Kompressors using the Eaton M62. This can be switched on and off using your boost switch.
As you said above, the complications will come in things like when you put your foot on the clutch, your pressure will drop and the S/C will come back in again putting load on the engine when it's freewheeling? I've seen the electronics for twincharger kits before and they ar big and plentiful!
MK1 MR2 SCs have an electronic clutch on the supercharger pulley as well (basically the same as most aircon compressors). Could you use a vacuum solenoid or something to close a circuit once a certain pressure is reached? Or a comparator circuit running off a MAP sensor, i.e. once the sensor is outputting x amount of voltage (akin to x PSI) then switch the relay for the clutch off.
As you said above, the complications will come in things like when you put your foot on the clutch, your pressure will drop and the S/C will come back in again putting load on the engine when it's freewheeling? I've seen the electronics for twincharger kits before and they ar big and plentiful!
Hurricane He is talking about using an electronic boost controller to give him in car adjustablility to 'tune' the changeover point to minimise boost drop.
I believe the electro magnetic clutch was fitted to Merc Kompressors using the Eaton M62. This can be switched on and off using your boost switch.
exactly, and hopefully that simple, fingers crossed! do you think i'll be able to get a good enough response with that setup?
Hurricane He is talking about using an electronic boost controller to give him in car adjustablility to 'tune' the changeover point to minimise boost drop.
I believe the electro magnetic clutch was fitted to Merc Kompressors using the Eaton M62. This can be switched on and off using your boost switch.
exactly, and hopefully that simple, fingers crossed! do you think i'll be able to get a good enough response with that setup?
toxo MK1 MR2 SCs have an electronic clutch on the supercharger pulley as well (basically the same as most aircon compressors). Could you use a vacuum solenoid or something to close a circuit once a certain pressure is reached? Or a comparator circuit running off a MAP sensor, i.e. once the sensor is outputting x amount of voltage (akin to x PSI) then switch the relay for the clutch off.
As you said above, the complications will come in things like when you put your foot on the clutch, your pressure will drop and the S/C will come back in again putting load on the engine when it's freewheeling? I've seen the electronics for twincharger kits before and they ar big and plentiful!
**** interesting idea, i have little experiance taping into resistance specific systems like a maf, but am now going to research that too. i want as whole a pic as i can get before i go too far! an that is a good idea! although, as you say the electronic systems can get very complicated, which is why i was airing to mechanical control and switch, using a user friendly controller to say when!
I like your thinking, and will be heavily considering all aspect of that idea. :thumbup:
toxo MK1 MR2 SCs have an electronic clutch on the supercharger pulley as well (basically the same as most aircon compressors). Could you use a vacuum solenoid or something to close a circuit once a certain pressure is reached? Or a comparator circuit running off a MAP sensor, i.e. once the sensor is outputting x amount of voltage (akin to x PSI) then switch the relay for the clutch off.
As you said above, the complications will come in things like when you put your foot on the clutch, your pressure will drop and the S/C will come back in again putting load on the engine when it's freewheeling? I've seen the electronics for twincharger kits before and they ar big and plentiful!
**** interesting idea, i have little experiance taping into resistance specific systems like a maf, but am now going to research that too. i want as whole a pic as i can get before i go too far! an that is a good idea! although, as you say the electronic systems can get very complicated, which is why i was airing to mechanical control and switch, using a user friendly controller to say when!
I like your thinking, and will be heavily considering all aspect of that idea. :thumbup:
MAP (not MAF, not resistance) sensor:
http://gtfour.supras.org.nz/mapsensor.htm
Voltage comparator circuit, for turning an output on and off when a wire reaches a preset voltage (not resistance):
http://www.mrcontrols.com/installs/tempc...mpctrl.htm
The 2nd url is comparing voltage on the THW line which is the coolant temp sensor but the principle is the same.
Loosely put
MAP (not MAF, not resistance) sensor:
http://gtfour.supras.org.nz/mapsensor.htm
Voltage comparator circuit, for turning an output on and off when a wire reaches a preset voltage (not resistance):
http://www.mrcontrols.com/installs/tempc...mpctrl.htm
The 2nd url is comparing voltage on the THW line which is the coolant temp sensor but the principle is the same.
i could have ended up researching in alsort of pointless directions then. i see what your getting at now, makes much more sense! I wouldn't need a switch on the bypass atall and could still manually over-ride the clutch easily, thanks for the info :thumbup:
as i said electronics are not my thing, thanks for the correction,
i could have ended up researching in alsort of pointless directions then. i see what your getting at now, makes much more sense! I wouldn't need a switch on the bypass atall and could still manually over-ride the clutch easily, thanks for the info :thumbup:
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