With CPE Standback do you still need a fuel cut killer

[babz437]

Just wondering if these two are both necessary or if you can just get the Standback and have the same effect.

 

[ssinstaller]

The standback allows you to tune out the fuel cut..

 

[laloosh]

The standback allows you to tune out the fuel cut..

how? by not hitting 18psi or by actually doing something about it?

 

[BoostedSpd6]

how? by not hitting 18psi or by actually doing something about it?

well from what mike said in the other thread hes able to set where fuel cut happens like higher in the rpms but hes not able to totally get rid of it yet and that wont happen till we get a fuel solution.. but running the two things together would be a very bad thing.

 

[laloosh]

well from what mike said in the other thread hes able to set where fuel cut happens like higher in the rpms but hes not able to totally get rid of it yet and that wont happen till we get a fuel solution.. but running the two things together would be a very bad thing.

so pretty much it does nothing for fuel cut, it just doesnt boost high enough to hit it.

 

[BoostedSpd6]

it does push it furthur back into the rpm range mike said he hit it while racing but he never hit on once he was rlly tuned on the dyno... we just need fuel.. then it wont even be a problem. hes boosting safely all the way too redline at 17psi on the 76r

 

[Gandalf]

If you can't tune fuel cut out then you're not using the standback correctly. It has its own parameters to feed the ECU constant signals so it never sees fuel cut and you can program it to hit it's own fuel cut at any boost/MAF voltage you want. Keep trying.

 

[laloosh]

keep trying? i asked a simply question

 

[forrestang]

The standback will do at the very least what the ATP FCD will do.

There is a setting in the standback boost page called 'boost clip.'

What this does is allow you to set a boost number that the ECM will see. So if you wanted it to never see more than 13psi, your ecu will always think thats the max you're boosting too, and that issue of fuel cut will be resolved.

But I've said it a million times, fuel cut is simply not a function of boost pressure within the manifold, which is why Mike is still hitting the fuel cut.

 

[laloosh]

so what is boost cut caused by. Cause i ran as much as 21psi while i was tunning my mbc and have yet to hit fuel cut.

 

[BoostedSpd6]

dude u better watch it that u dont blow the turbo up man thats way out of its efficency range

 

[chriscecc914]

wats bad about running the fuel cut defender and the cp-e if you have a manual boost controller and a wastegate set for the boost you want?

 

[ssinstaller]

so what is boost cut caused by. Cause i ran as much as 21psi while i was tunning my mbc and have yet to hit fuel cut.

From what I've noticed, I think it is usually caused by a combination of the MAP and MAF readings, but can also ba caused by excessivly lean AFR's. If the maf reading is higher than expected for a certian boost level you get fuel cut. I hit fuel cut at only 15psi a few times when it was below 30 deg last winter..but didn't have any issues this summer at 17psi..

wats bad about running the fuel cut defender and the cp-e if you have a manual boost controller and a wastegate set for the boost you want?

The FCD will change the map signal before the standback, so all the boost settings in the standback will not work properly. The standback reads the boost from the map sensor, and uses that for the boost controller, and the boost clip to help eliminate fuel cut.

One of the major benifits of the standback is the very good boost controller built into it-why would you want to use a MBC?

 

[chriscecc914]

From what I've noticed, I think it is usually caused by a combination of the MAP and MAF readings, but can also ba caused by excessivly lean AFR's. If the maf reading is higher than expected for a certian boost level you get fuel cut. I hit fuel cut at only 15psi a few times when it was below 30 deg last winter..but didn't have any issues this summer at 17psi..




The FCD will change the map signal before the standback, so all the boost settings in the standback will not work properly. The standback reads the boost from the map sensor, and uses that for the boost controller, and the boost clip to help eliminate fuel cut.

One of the major benifits of the standback is the very good boost controller built into it-why would you want to use a MBC?

Because the stock boost controller that is mounted on the stock turbo is eliminated with the ATP kit and is just replaced with a vacuum hose which is meant to have an mbc on it to regulate boost.

 

[laloosh]

because its 60 bucks instead of 600 and gains the same power, which is limited by the fuel system

 

[ssinstaller]

Because the stock boost controller that is mounted on the stock turbo is eliminated with the ATP kit and is just replaced with a vacuum hose which is meant to have an mbc on it to regulate boost.

You can easily use the stock boost control solenoid with the ATP kit.. Just tee it into the boost line before the wastgate..

 

[mrlilguy157]

good thread. Please give more cpe standback tuning advice

 

[pHeeL tHiZ ViBe]

You can easily use the stock boost control solenoid with the ATP kit.. Just tee it into the boost line before the wastgate..

+1 for that idea..no MBC!!!!!

 

[laloosh]

+1 for that idea..no MBC!!!!!

please tell me why. You can max out the fuel system with a mbc and bolt ons. STandback is imho is needed when the fuel pump issue is resolved

 

[pHeeL tHiZ ViBe]

extra spent money thats the only reason i guess, i'm not saying its a bad thing i just wouldn't do it. but i'd rather have a standback, that maxes out my car now...and has the potential to max out the car once the aftermarket catches up also. besides the standback is much safer than a MBC.