Injector help

[92VR4Red]

Ive been geting fule cut (yes i have a afc fixed it witht he wideban. got rid of the lean and richness all the way) so i beleive its the injectors... so i was looking in to buying some 450cc injectors but i dont know what type to buy... high throttle or low throttle ext... so what is recomended?

[Hotshot8792]

if your boosting more than 14lbs, you should be hitting fuel cut on stock injectors, because thats all they are able to flow

[92VR4Red]

yeah its around 16 lbs... what kind of injectors you sujest? 450cc? what do you run in your car?

[youngvr4]

don't go past 14.5

if it still does it, then your in the same boat as me

might be the spark plugs, might be the type of b/c, hell i still don't know, but i'll be checking to see if spark plugs is the reason soon

[Igovert500]

fuel cut is violent, the car dies and you drift to the side of the road feeling like you just blew your engine up...

spark blowout is more of a hesitation, you speed up, hesitate, slow down, speed up...kind of like a back and forth thing...your car doesn't die and it isn't violent at all...

I honestly have no idea about the difference between high throttle and low throttle 450ccs...just get the ones from a dsm...you can find them pretty cheap..if not, i'm sure 3sx or dynamicracing or ipo would have them.

Only thing is, are you planning on more mods, because 450ccs might end up being too small again, if you swap turbos.

[talskinyguy]

When you hit fuel cut your car does not die. to go above 15-16 psi you will need bigger injectors. Fuel cut is controlled by the air flowing in the MAS. So you could also get an aftermarket FPR and up the presure and then add more correction on your AFC. However, the easyest way is to get bigger injectors.

[92VR4Red]

yeah fuel cut doesnt always cause your car to die... me it seams as if the cars shuts off for a slpit second... i have a wideban and a sacf i tried to eleminate the cut it just wont... i have my car pretty well stoich... its not rich or lean. I just changed my spark plugs... running coppers so the spark is hot enough to ignite. the boost controller mabey im useing a greddy profect b spec 2... and i dont care about buying 450cc now and haveing to get bigger later... injuectors are cheap and i could sell them for half price... i just want my car running good now...

[talskinyguy]

You will have to get bigger injetors to eliminate fuel cut.

[92VR4Red]

Originally Posted by Igovert500

fuel cut is violent, the car dies and you drift to the side of the road feeling like you just blew your engine up...

spark blowout is more of a hesitation, you speed up, hesitate, slow down, speed up...kind of like a back and forth thing...your car doesn't die and it isn't violent at all...

I honestly have no idea about the difference between high throttle and low throttle 450ccs...just get the ones from a dsm...you can find them pretty cheap..if not, i'm sure 3sx or dynamicracing or ipo would have them.

Only thing is, are you planning on more mods, because 450ccs might end up being too small again, if you swap turbos.

the only problem with geting 450cc injectors from a dsm is that they come in 4s... so if i buy some from one guys car and 2 more off another the praformance on one set might be worse or better than the other, and that could cause some major probs... ive been trying to find a set of 6 but i cant find them anywhere i looked at dynamicracing.com many of times and 3sxperformance.com, the car shop i go too MVP Motor sports say i must specify what kind of 450cc injectors and ive never heard of that... and i know this guy aint out to rip me off because i happen to be a freind of the owner, dusty walmack. so mabey if i buy 4 off one guy and 4 of the other and soak them all in injector cleaner or something... mabey ill be safe?

[talskinyguy]

Or have them cleaned and flow tested to make sure they flow the same amount.