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injection Its alive!!!!!!
It got a injecter clean and the tapets set today but I am in the search for more hp. I think the time has come to turbo. Im thinking starlet turbo, I just don't know if the single injector is gunna put engough fuel in.
Im thinking I might have to put a second injecor in hooked up to a pressure sitch only coming on when boosting with a ajustable return line rstricter as well.
Im thinking I might have to put a second injecor in hooked up to a pressure sitch only coming on when boosting with a ajustable return line rstricter as well.
Its a wheelbase thing
spot on rhett... have a look at this site
http://home.alltel.net/mcfly/tuning_fuel.htm it covers supercharging as it was reserch for when i was supercharging my tbi motor but turbo/supercharger same principle should give you an idea or two.
be good to see when its done!
http://home.alltel.net/mcfly/tuning_fuel.htm it covers supercharging as it was reserch for when i was supercharging my tbi motor but turbo/supercharger same principle should give you an idea or two.
be good to see when its done!
[url=http://www.outerlimits4x4.com/ftopic129164.php[u]Supercharged SAS FJ Cruiser[/url]
A pic to please the readers. Im thinking I might put it all on before superia all terrian
http://i80.photobucket.com/albums/j199/ ... uzi099.jpg
http://i80.photobucket.com/albums/j199/ ... uzi099.jpg
Its a wheelbase thing
dude its facing the wrong way..what is the reason for this?
also not sure a td turbo will work on a petty engine...
you need to remember that they spool up so quick on diesels as they have tons more exhaust pressure/ compression ratio than a petty.
not saying it will not work at all though but i think you will find it will take a while to come on boost...
also not sure a td turbo will work on a petty engine...
you need to remember that they spool up so quick on diesels as they have tons more exhaust pressure/ compression ratio than a petty.
not saying it will not work at all though but i think you will find it will take a while to come on boost...
Mud4b/ OPT, Cheap rates, Not cheap work. Search Opt- option offroad on facebook. Call or Sms 0439609525.. Sunshine coast, Eudlo, 4554.
I thought Id dig up an old post as I have injected another motor with a mazda 121 throttle body. Done things a little different this time by trying to keep it simple as possible.
The Car
http://i80.photobucket.com/albums/j199/ ... ild008.jpg
I turned the throttle body around this time and plumbed the water threw the the unit a little different
http://i80.photobucket.com/albums/j199/ ... ild005.jpg
I also cut out a lot more wireing making everything neater
http://i80.photobucket.com/albums/j199/ ... ild004.jpg
Im using the dizzy out of my yellow one as the engineer had not finished(or started) the next one
http://i80.photobucket.com/albums/j199/ ... ild006.jpg
The Car
http://i80.photobucket.com/albums/j199/ ... ild008.jpg
I turned the throttle body around this time and plumbed the water threw the the unit a little different
http://i80.photobucket.com/albums/j199/ ... ild005.jpg
I also cut out a lot more wireing making everything neater
http://i80.photobucket.com/albums/j199/ ... ild004.jpg
Im using the dizzy out of my yellow one as the engineer had not finished(or started) the next one
http://i80.photobucket.com/albums/j199/ ... ild006.jpg
Its a wheelbase thing
Now Im not the one to just have a car and not compete in events so this one is going to be my gymkana car so Im going to need some more power. So I started fabbing
http://i80.photobucket.com/albums/j199/ ... ild001.jpg
This plate was not real fun to cut out with a grinder and hole saw
http://i80.photobucket.com/albums/j199/ ... ild002.jpg
Bolted up to where is gunna go. Round the right way this time just for you Marky boy
http://i80.photobucket.com/albums/j199/ ... ild003.jpg
And where it going to sit in the engine bay. When my header plate turns up and I make another manifold http://i80.photobucket.com/albums/j199/ ... ild007.jpg
And becouse I couldn't make the manifold this weekend I painted the mower http://i80.photobucket.com/albums/j199/ ... ild009.jpg
http://i80.photobucket.com/albums/j199/ ... ild001.jpg
This plate was not real fun to cut out with a grinder and hole saw
http://i80.photobucket.com/albums/j199/ ... ild002.jpg
Bolted up to where is gunna go. Round the right way this time just for you Marky boy
http://i80.photobucket.com/albums/j199/ ... ild003.jpg
And where it going to sit in the engine bay. When my header plate turns up and I make another manifold http://i80.photobucket.com/albums/j199/ ... ild007.jpg
And becouse I couldn't make the manifold this weekend I painted the mower http://i80.photobucket.com/albums/j199/ ... ild009.jpg
Its a wheelbase thing
121 injection.
Hey Rhett, hows the injection going? Last post I read said it was running rich and idling @ 1400rpm. Did you sort the mixtures and idle speed? Does it go much better? GOOD WORK buddy, Keep thinking outside the box! I'll copy your setup soon as it's a lot easier than LPG and has most of the benefits with none of the drawbacks (of LPG).
Posts: 912
Joined: Tue Nov 09, 2004 6:29 pm
Joined: Tue Nov 09, 2004 6:29 pm
Location: {Sydney, Australia or Rio, Brazil Ride: Sierra JXi}
Re: 121 injection.
There are still drawbacks to this set up, one is that the fuel economy will never be what it could be running the mazda ecu as it's design for a different powerband, cam profile and bore/stroke. Also i don't think rhetts running an AFM or oxy sensor causing it to run rich (and probably lean when on boost)want33s wrote:Hey Rhett, hows the injection going? Last post I read said it was running rich and idling @ 1400rpm. Did you sort the mixtures and idle speed? Does it go much better? GOOD WORK buddy, Keep thinking outside the box! I'll copy your setup soon as it's a lot easier than LPG and has most of the benefits with none of the drawbacks (of LPG).
Now a LPG with a turbo or pref a supercharger in the same motor would be a little different, from all i have learnt a LPG carb will displace 'x' amount of gas for 'x' amount of air so lets say 1 unit of gas for every 8 units of air. So if 80 units of air pass the carb will relase 8 units of gas.
If you pass 5 psi of boost through the carb it will still flow the correct ratio as the pressure from the tank will be much greater (unlike petrol carb which starts pushing it back up the pipe leaning out the mixture) LPG also doesn't need to vaporise so you get a much more efficient burn helping with fuel economy and power.
Just picture a lpg sierra engine with a toyata supercharger. Flick the swith for instant boost, turn it off for economy
no computer, no fuel pump or array of sensors like afms, ego's or crank triggers. Lastly it would be legal and no worries on defects
(You may even be able to claim the supercharger in the rebate)
Don't get me wrong i support rhett in his pioneering just think he still be going through a bit of teething
-[b]Santos[/b][img]http://www.teamswift.net/images/smilies/icon_furious.gif[/img]
Suzuki, Jeep & Toyota Soft tops with welded seams for SALE (PM me)
Suzuki, Jeep & Toyota Soft tops with welded seams for SALE (PM me)
agree with you 100% have done the lpg setup with turbos and superchargers before...
Most gas systems will cope quite well with boost. Not to mention gas has a higher octain rating that fuel aswell. thus les chance of det.
I have never had a problem with gas and forced induction and would recomend it to everyone... Not to mention very easy and Cheap to setup.
mark
Most gas systems will cope quite well with boost. Not to mention gas has a higher octain rating that fuel aswell. thus les chance of det.
I have never had a problem with gas and forced induction and would recomend it to everyone... Not to mention very easy and Cheap to setup.
mark
121 injection
I've thought long and hard about this and I'll be EFI not gas. I wanted gas but there isn't enough room and I'm not rich enough to have a custom tank made.(If it were LWB might be different).
EFI as suggested by Rhett is simple and cheap and will provide better economy than gas(distance per litre).
Motec assure me the fuel maps can be changed to suit any similar size engine.
An oxygen sensor may die in the bush but so can a carby float or needle/seat. Injection.... Yes please..
EFI as suggested by Rhett is simple and cheap and will provide better economy than gas(distance per litre).
Motec assure me the fuel maps can be changed to suit any similar size engine.
An oxygen sensor may die in the bush but so can a carby float or needle/seat. Injection.... Yes please..
efi
I have heard of a resistor being placed in the oxygen sensor wire to trick the module. Does anyone know if this will help/work?Rhett wrote:Mine is running at about 12-13/1 on the dyno. I was told 14 is optimal but Id rather have rich over lean with boost
Re: efi
they sell them on ebay, apparently they do work..want33s wrote:I have heard of a resistor being placed in the oxygen sensor wire to trick the module. Does anyone know if this will help/work?Rhett wrote:Mine is running at about 12-13/1 on the dyno. I was told 14 is optimal but Id rather have rich over lean with boost
Mud4b/ OPT, Cheap rates, Not cheap work. Search Opt- option offroad on facebook. Call or Sms 0439609525.. Sunshine coast, Eudlo, 4554.
Posts: 912
Joined: Tue Nov 09, 2004 6:29 pm
Joined: Tue Nov 09, 2004 6:29 pm
Location: {Sydney, Australia or Rio, Brazil Ride: Sierra JXi}
the resistor just fools the computer into thinking it's running very lean so the computer dumps extra fuel. Not really ' tuning' . I suppose you could try various resistors until you got the right amount you where looking for as Dick smith sells them for 6c each but it is in know way the equivalent of the aftermarket ecu or even an reprogramed chip for the mazda ecu (which would be cheap for every other vehicle, just not the first)
-[b]Santos[/b][img]http://www.teamswift.net/images/smilies/icon_furious.gif[/img]
Suzuki, Jeep & Toyota Soft tops with welded seams for SALE (PM me)
Suzuki, Jeep & Toyota Soft tops with welded seams for SALE (PM me)
Re: injection Its alive!!!!!!
OK .. decided on this for the red wagon ...
So mazda 121 TB and computer, and 121\sierra dizzy hybrid ...
So mazda 121 TB and computer, and 121\sierra dizzy hybrid ...
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