zerMATT951

You can't adjust the idle down with the TB idle adjustment screw? Sounds like Rogue is running the idle mixture a little leaner than your Vitesse setup did.

Scott H

Yeah, do the method where you jumper the ICV and then adjust the screw on the TB down to get the correct idle, which as previous is around 900RPM (stock is 840+/- 40), I aim for 880-900 as that's the best I can interpret from the tach gauge.

bw993

Tried adjusting the idle screw with ICV disabled, with no luck. AFR with idle at 1050 rpm is 14.7-14.9. Talked to Josh and he confirmed that idle should be 1000+/- 50 rpm.

User 52121

blown 944

It may be due to some added timing, iirc he has added some timing to the idle. You can back off the tb set screw (not the flat blade idle screw).

supes6

this is consistent with what I am seeing as well...

Tom M'Guinn

Have you tried the clarks-garage idle speed setting instructions? That always seems to work for me...

Stephencs601

Mine idles at around 1000rpm The one thing I must say, Joshua stands behind his products and will not let you down. I have dealt with another resaler who wants to charge for everything. Buy the mtune it is fantastic. Joshua is a stand up guy who cares about his name and products.

My car is a beast with no loss of power. The harder I stomp, the more it goes. I have a 4" exhaust, Garrett hybrid, 3" downpipe, Mtune of course, 80lb injectors, upgraded motor and no leaks. I am at 15-16lbs of boost to get used to the changes. I will dyno soon. Dynoed at 264rwhp prior to mtune.

bw993

I just switched to running E85 with my M-Tune and the results are awesome. Per Josh, the higher idle improves off-idle response, better drop-throttle catching, increased timing and better emissions. All good benefits.

Rogue_Ant

Yep, idle should be ~1000rpm. Also, most 951 tachs I've seen tend to read a little high.

zerMATT951

Does anyone what the max safe boost target should be with M-Tune, 80# injectors, Bosch HV fuel pump, and FPR set at 3.0 BAR would be? How about with E-85?

I'll have the WBO2 connected soon, so I'll know what's going on, but I'd like to start turning up the boost past 15 PSI now...

refresh951

Matt - The M Tune is awesome but IMO I would stay at 15 psi on pump fuel, especially until you get a WB02 or preferably a data logger. Once you can accurately monitor knock, A/F and boost you could experiment with increased pressure. Bad fuel and many other factors could reduce margin. Just my opinion.

zerMATT951

I was running 15 with my K26 and had the expectation that M-Tune had built-in safety to run slightly rich at higher boost levels until the piggy back was available. Not so?

So then should I be asking what octane I need to run at 15 PSI???

Clown

Matt,

I am pretty sure you can run a max of 18psi on 93 octane pump. Around 20psi with E85. The overboost protection will kick in when you exceed 18psi and the engine will shut off very breifly. You will have to switch to the secondary E85/Race Fuel map to exceed 18psi. That is what I was told anyway. I am sure Josh will chime in.

Crackership

I've never been willing to even try running anything less than premium (which is 92 here)... The added expense for the fuel is nothing compared to the potential cost of pre-ignition.