Miller WAR chip e/i "stroker" w/HX35 issues

[The Humjet]

So you had problems with leaning out with the 30lb injectors, if I'm gonna be running 10-12psi like you are then I should go for 42lb injectors like you just did? did you change your fuel pump for a larger one or is it still stock?

[JTapper]

So you had problems with leaning out with the 30lb injectors, if I'm gonna be running 10-12psi like you are then I should go for 42lb injectors like you just did? did you change your fuel pump for a larger one or is it still stock?

I upgraded to a Walbro 255 pump.

30# injectors would be fine for 10-12psi, but that's about it. Their duty cycle is about maxed out at that point. You could probably do 15psi, as was my plan for them, but that's maxing them out and never a good thing.

I haven't fired up the car and tried adjusting the idle fueling yet with the 42# injectors. I'm using the Miller WAR chip on the stock Motronic DME, and Motronic has trouble managing injectors larger than 30#.

Get a wideband and keep an eye on it, you'll be fine.

Here is my project thread on my local forum:

http://eurowerks.org/showthread.php?t=19677

[The Humjet]

ok mate keep us posted on how it goes with the bigger injectors I always wandered if W.A.R chip could support injectors larger than 30lb

[JTapper]

Maybe Brody will be checking the thread and will chime in. I haven't asked Miller, so who knows. I'm just going by what I've read about flash tunes on Motronic. I'm sure Miller sees the same limitations with the WAR chip.

[The Humjet]

Brody I hope your reading this, What are the limitations of injectors sizes with the W.A.R chip?

[The Humjet]

any updates on your car I just purchased a Miller W.A.R and Maf waiting for it in the mail. How's the 42lbs injectors treating you/

[brody]

Motronic does not have trouble with larger than 30# injectors - you just have to know how to calibrate it properly. 42's are no problem, 55's would even be fine. We haven't had the need to set up an M20 for higher than 30's.

30# injectors will be fine for around 350 WHP, 36# injectors will be fine for 420-430 HP 42's will support 500 - 550

[The Humjet]

Nice to hear from you Brody, I just purchased a second hand w.a.r and maf from MonkeyMadness (Jeremy Duncan) someone you might know. When I get deaper into my turbo build I hope to keep in touch with you via email. Im gonna be learning the software as time goes on. But I think it would be better to do a remote tuning at my local dyno shop so I can get a perfect tune by someone who knows more about this software. Does that sound ok?

[JTapper]

any updates on your car I just purchased a Miller W.A.R and Maf waiting for it in the mail. How's the 42lbs injectors treating you/

42# injectors are working out okay.

Haven't driven too much, but I did go out and have a little fun. haven't done any hard pulls yet.

I am running fairly rich, with my highest AFR MAYBE reading 13:1, I'd say I'm averaging around 11.5-12.

I spoke with Brody about a base tune for the 42#, so I'm hoping to try that out soon.

[Sputnik]

Did you have to buy the 173 turbo .ecu "plugin" to tune your turbo setup, or are you using how it came right out of the box?

also..when you're running your maf is it infront of the turbo behind the air-filter, or is it en-route to the throttle body?

[The Humjet]

Miller maf sensors a draw through which means they're infront of the turbo behind the air filter. If you run it along the charge pipe towards the tb you will run the risk of breaking it when hitting boost

[Denny]

Motronic does not have trouble with larger than 30# injectors - you just have to know how to calibrate it properly. 42's are no problem, 55's would even be fine. We haven't had the need to set up an M20 for higher than 30's.

30# injectors will be fine for around 350 WHP, 36# injectors will be fine for 420-430 HP 42's will support 500 - 550

Brody

Would you be able to get back to me please I need a turbo tune for 30# injectors for my M20 build (war chip/ maf GenIII / smart fan).

Few e-mails sent to you and no response back :(

e-mail me please: dmedeiros1974@gmail.com

Sorry did not want to highjack thread. Thanks Brody

[JTapper]

Did you have to buy the 173 turbo .ecu "plugin" to tune your turbo setup, or are you using how it came right out of the box?

also..when you're running your maf is it infront of the turbo behind the air-filter, or is it en-route to the throttle body?

Yes, I am using the Turbo173 .ecu file.

My MAF is in front of the turbo. They are pull through MAF's so they need to ge before the turbo. I have a 3.5" 90 degree coupler with my MAF and a cone filter behind the headlight. Barely fits. In the future, I may route the intake through the hole left from the a/c dryer and have a filter behind the front bumper.

Right now it's pulling nicely running 15psi. I'd bet the T3 would spool a lot faster than my T3/T4, but 15psi would be about the max I could run. This turbo should be good for around 20psi max.

[Sputnik]

Also you think If I'm running a warchip can I get a maf from another car or do I have to buy it from miller.

Also whats size maf are you running?

[The Humjet]

Right now it's pulling nicely running 15psi. I'd bet the T3 would spool a lot faster than my T3/T4, but 15psi would be about the max I could run. This turbo should be good for around 20psi max.

I'll give the t3 a shot, I have one sitting on my desk and cost me basically nothing. I'll run it on 11psi with 30lb injectors and 38mm external gate. If all this doesn't impress me in terms of performance then I'll just upgrade. It's better than my original plan of running an xs-power chinese knockoff t3/t4.

Also whats size maf are you running?

I have the 2.7" maf housing but I suspect its too small. 3.5" is what I heard is recommended for boosted cars. You can get a maf from another to work then there is no reason why the w.a.r chip couldn't work off that sensor. But in saying that not many maf sensors are able to work with our cars. You gotta find the right one. But I heard of someone on e30tech using a Volvo Maf