Just purchased

[Phan10m]

my Bwoody motor mount set for 165$ and my walbro for 100$ yay no more fuel cut.

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[Chrisco]

my Bwoody motor mount set for 165$ and my walbro for 100$ yay no more fuel cut.

A fuel pump eliminates fuel cut?

Grats on the purchases! Those motor mounts will make a big difference

 

[Mook]

you'll love the mounts. as chrisco said, noticeable difference

 

[Phan10m]

so what ive heard and asked on srtforums . the reason for fuel cut is the fuel pump so im gunna install the walbro and see whats up. Next is probably master bushing kit, lower IC piping, and 3" downpipe.

 

[Chrisco]

Hmm... your fuel pump doesn't cause fuel cut. Fuel cut is caused by the PCM seeing 'too much' airflow past your MAF/MAP (I'm not sure which srt-4's have) sensor. Having a larger fuel pump just enables you to safely use larger injectors and run higher fuel pressure.

 

[Phan10m]

so basically i need like a stage 1 pcm im guessing?... we will see what up next thursday when its installed.

 

[Chrisco]

so basically i need like a stage 1 pcm im guessing?... we will see what up next thursday when its installed.

I don't know for sure about that as I don't know much about modding neons/chrysler products in particular, I just know that an upgraded pump isn't going to change or eliminate fuel cut.

 

[Primalzer]

Do you just have stage 1, or more? I didn't think you needed the fuel pump with stage 1, my buddy has stage 3, and he had the walbro put in...

 

[Mirz]

Hmm... your fuel pump doesn't cause fuel cut. Fuel cut is caused by the PCM seeing 'too much' airflow past your MAF/MAP (I'm not sure which srt-4's have) sensor. Having a larger fuel pump just enables you to safely use larger injectors and run higher fuel pressure.

They run a map, and what rpm do you see fuel cut? or what boost?

 

[esteinmaier]

Typically a stage 0 ECU will get mad at 16psi or so, and a stage 1 ECU will be mad in the 18-19 range. That's perfectly fine though, since that turbo may as well be a hair dryer at that boost level with the compressor blades moving faster than mach 1.

And no, a walbro isn't going to stop a fuel cut. It will help you a little further down the upgrade path, but it isn't doing a whole lot as of yet.

Are you using an aftermarket adjustable WGA? Is your boost spiking and falling? To what numbers? Or a boost controller?

Are you getting a CEL when this happens or does it just feel like you're hitting a rev limiter and then there's no evidence afterwards?

You aren't, by chance, trying to run e85, are you?

 

[Phan10m]

its when im like at 120 mph and idk the rpms' but it just cuts me off. i have an aftermarket internal wga thats about it no boost controller. still on stock boost(15 ish) with no falling off. feel like im hitting rev limiter then puts me down then i go up puts me down same thing.

 

[esteinmaier]

My best recommendation would be to try dropping the boost just a hair. That will tell you if it's MAP related, or there's something else going on. Are you getting a CEL?

 

[Poopshinanigans]

Maybe not going 120mph would fix the problem? Unless you're on some super long racecourse.

 

[Chrisco]

Maybe not going 120mph would fix the problem? Unless you're on some super long racecourse.

You don't trap 120 in the 1/4? I thought everyone did.

 

[Poopshinanigans]

I can't trap 80mph in the PT. Though i have had it upto 120mph and there was no fuel cutoff. Ask Primalzer, he was there. The SRT motor and mine are essentially the same, right?

 

[Primalzer]

I can't trap 80mph in the PT. Though i have had it upto 120mph and there was no fuel cutoff. Ask Primalzer, he was there. The SRT motor and mine are essentially the same, right?

Aside from that pumpkin looking thing missing from yours, i guess

 

[esteinmaier]

Same bore and stroke, but you have larger exhaust valves, and the oil drain back from the head is a little different. You are, however, missing a turbo, as well as under-piston oil squirters, and your oil pump is lower volume, in addition to your oil pan being different. You know, come to think of it, you motor is less like an SRT4's motor than mine is to a stock one.

 

[bob72788]

yeah srt-4 woow

 

[Phan10m]

^ lol. but yea i know i dont go 120 in the quarter its just the fact that im getting it and figured a new fuel pump would fix it.