Viva Turbo

[waja1234567]

Hi All sifu,

need help on my Viva converted to EF-DET 660 turbo engine

I'd remove the boostcut but I found problem when running at high boost, the sympton is funny sometime the car pickup/boost up smoothly unitl 1.0~1.2 bar, but most of the time the car boost showing 1.0 bar but car don't feel the pickup and some time "semput" and jerking.

Any idea what is wrong?
1) Is the fuel pressure not enough?
2) Any way to install an adjustable fuel regulator?Viva don't have return line, so need to modify, is it safe?
3) any good and cheap turbo workshop in penang or butterworth area can recommend?

 

[ixeo]

Are you using a manual boost controller?

 

[DanzEterna]

wat fuel pump u using?

 

[waja1234567]

Are you using a manual boost controller?

Yes, imitate turbo smart maunal boost controller.

---------- Post added at 09:16 AM ---------- 6 hour anti-bump limit - Previous post was at 09:15 AM ----------

wat fuel pump u using?

Standard Viva 660 fuel pump.

 

[papagoines]

please describe how you disable the boost cut?

 

[egb18c]

Viva 660 doesnt have any return line(from my previous experience).
i think you need to mod to put a return line with afr as the original fuel pump does not have enough juice for higher pressure.
does your manifold is red hot after a few runs?

 

[waja1234567]

please describe how you disable the boost cut?

Well, i'd installed a "box" from ebay to the ecu which similar to the HKS FCD.

Inital witout the "box" max can boost is 0.9 only and the car will jerk + semput. with the box can go high until ~1.2 bar but the car start to semput at 1.2 bar.

The funny thing is that, sometimes boost unitil 1.2 also OK with no jerk is i accelerate slowly. But if a fast acceleration, than all semput come in....

---------- Post added at 11:08 AM ---------- 6 hour anti-bump limit - Previous post was at 11:05 AM ----------

Viva 660 doesnt have any return line(from my previous experience).
i think you need to mod to put a return line with afr as the original fuel pump does not have enough juice for higher pressure.
does your manifold is red hot after a few runs?

So far don't see any read hot on the manifold...

Is it safe to modify return line as some ppl said can burn out if leakage.. Know any place can do the mod?

 

[papagoines]

Well, i'd installed a "box" from ebay to the ecu which similar to the HKS FCD.

Inital witout the "box" max can boost is 0.9 only and the car will jerk + semput. with the box can go high until ~1.2 bar but the car start to semput at 1.2 bar.

The funny thing is that, sometimes boost unitil 1.2 also OK with no jerk is i accelerate slowly. But if a fast acceleration, than all semput come in....

that's rule out "remove-any-cut-DIY-wiring-style" scenario... maybe you should try do the return-line as per bro egb18c says

 

[waja1234567]

Need help, anyone know where i can modify to install the AFR? Northen region.

 

[papagoines]

my pomen ask, does EF-DET have a return line? if got, better make a custom one since it will cause much fueling issue

my kancil oso don;t have return line so my pomen custom a return line since my JB-JL engine does have return line to begin with

here... we don't see much EF-DET, heard it has great initial torque figure

at most, we've seen here are EF-RL

 

[waja1234567]

Hi All,

After going to few of the work shop and seem like they don't really want to do the modification on the return line because of "takut bocor.."

I was thinking if just replace a high pressure fuel pump will it help? But the original regulator was build-in, so if high pressure pump after the regulator will still reduce the pressure, correct?

Will a SAFC help on this?

 

[papagoines]

sorry for late reply, I just pm'ed you a contact that may help you