As most of us have heard the BEGI kit may require an auxilury fuel pump but we also know that any serious Turbo system should have one anyways for safety sakes. So, Spoolin can you enlighten us all on a good spot to place an aux fuel pump and which one is a good choice. If it will work on your beast it should be fine with the BEGI kit. Although I assume the kit From Flyin will be shipping with an aux pump.
FUel Pump!
- Thread starter 1sty
- Start date
Hello,
Use the Pierburg fuel pump, as per Corky's recommendation. Since the stock fuel pump and fuel filter are located in the gas tank, the aux. pump cannot be mounted before the fuel filter. Mount the aux. pump on the firewall close to where the factory fuel line comes from underneath the car. Cut the factory hard fuel line and use rubber fuel hose to run from the factory fuel line to the aux. pump and then to the fuel rail. Hope this helps.
-Shawn
Use the Pierburg fuel pump, as per Corky's recommendation. Since the stock fuel pump and fuel filter are located in the gas tank, the aux. pump cannot be mounted before the fuel filter. Mount the aux. pump on the firewall close to where the factory fuel line comes from underneath the car. Cut the factory hard fuel line and use rubber fuel hose to run from the factory fuel line to the aux. pump and then to the fuel rail. Hope this helps.
-Shawn
yeah msd should do da trick
One thing we have to remember though guys,
Corky had NO problems with any fuel pressure on Wshades turbo install. He's running 8psi and there was absolutely no modification to the feul pump nor was there an aux. pump installed.
FM is saying that they can't get enough psi from the pump to run at 8 psi, but Corky did it with the exact same kit. I think since they are partners on this project that they can figure out what might have been done differently. I have a feeling Corky's use of the fuel pressure regulator is probably playing a key factor in their differences?
If you go to the BEGI website and look at the updated protege turbo page, you will see a short explaination from Corky. It doesn't discuss fuel pressure as much as it does fuel/air mixture ratio and why he chose not to add extra injectors.
I just want to know what NEEDS to be done. We've got one partner saying the fuel pump isn't strong enough (FM) and then we've got Corky who say's it's fine....
Corky had NO problems with any fuel pressure on Wshades turbo install. He's running 8psi and there was absolutely no modification to the feul pump nor was there an aux. pump installed.
FM is saying that they can't get enough psi from the pump to run at 8 psi, but Corky did it with the exact same kit. I think since they are partners on this project that they can figure out what might have been done differently. I have a feeling Corky's use of the fuel pressure regulator is probably playing a key factor in their differences?
If you go to the BEGI website and look at the updated protege turbo page, you will see a short explaination from Corky. It doesn't discuss fuel pressure as much as it does fuel/air mixture ratio and why he chose not to add extra injectors.
I just want to know what NEEDS to be done. We've got one partner saying the fuel pump isn't strong enough (FM) and then we've got Corky who say's it's fine....
Ah the answer man comith. THe deal is this the stock pump was designed to run at max 92PSI however the kit needs up to 86PSI to function properly, since the stock demand is nowhere near 92 many of the stock pumps can't actualy reach and continualy deliver that pressure. If this is definitly the case remains to be determined but either way with only 6% margine of error I would rather have an additional pump for safety.
Better safe then sorry brother..............no matter who tells ya what
I am a paranoid SOB and for good reason I dont want to blowing engines here.
I am a paranoid SOB and for good reason I dont want to blowing engines here.
K
Keith@FP
The stock fuel pump is specified to be healthy if the maximum pressure is in a certain range. The upper limit for this is 92 psi. The lower limit is under the 86 psi that is theoretically desired for a 6 psi boost - I forget the exact number right now. 64? Anyhow, production variances can mean that one pump is fine (but on the edge) and another is not quite strong enough. Keep in mind that Corky's testing was done through a stock O2 sensor, and they get unreliable at rich readings and at high temps - ie, turbo cars. We've got a wideband O2 that will give a much more accurate picture.
We're looking at options. We may be able to get more pressure out of the stock pump. We may find once we're on the dyno with our wideband O2 hooked up that we don't need 84 psi of fuel pressure (it wasn't plumbed in for our initial dyno runs). We may find that the stock pump can deliver the 84 psi but will eventually fail (as on the Miata).
This is why we have our own P5, our own dyno and lots of instrumentation. If we find that something is needed to safely turbocharge a Proteg, it'll be included in the kit. We don't like blowing up engines at all.
Keith
We're looking at options. We may be able to get more pressure out of the stock pump. We may find once we're on the dyno with our wideband O2 hooked up that we don't need 84 psi of fuel pressure (it wasn't plumbed in for our initial dyno runs). We may find that the stock pump can deliver the 84 psi but will eventually fail (as on the Miata).
This is why we have our own P5, our own dyno and lots of instrumentation. If we find that something is needed to safely turbocharge a Proteg, it'll be included in the kit. We don't like blowing up engines at all.
Keith
Yes, I too spoke with Corky. Things are looking good!!!
It's just too bad we (out here in AZ) don't have any gas higher than 91 Octane. Looks like I'll just have to buy octane booster eachtime I fill up. Does anyone know if this acts the same as higher octane feul?
It's just too bad we (out here in AZ) don't have any gas higher than 91 Octane. Looks like I'll just have to buy octane booster eachtime I fill up. Does anyone know if this acts the same as higher octane feul?
Running the car with 87 octane was an oversight for me and Corky, and only for one tank. I run nothing but 93. Just so there is no confusion on the 8 psi issue I have run my car at 8 psi with no problem, but I live on the edge. Lately, it was at the track but with 4 gallons of 103 octane in the tank. Lets not get in to the numbers, nothing but wheel spin in 1st and into second (needs LSD). Since then I have turned the boost down to 6.5 psi until I install my Pierburg. The temp here is 101 degrees today. Better safe than sorry.
K
Keith@FP
We HAVE to make it work on 91 octane - it's all we have Plus all those poor folks who live in CA.
Although there are two drums of race gas in the corner of the shop. Hmmm.
Keith
Plus all those poor folks who live in CA.Although there are two drums of race gas in the corner of the shop. Hmmm.
Keith
K
Keith@FP
We did some more testing today. Even at 65 psi, we're still getting rich running under boost. Those are some big injectors. More investigation to follow...
Keith
Keith
K
Keith@FP
Nope. We installed the wideband O2 first so we could properly instrument this thing. We'll see.
Keith
Keith
PortCityMP3
Member
1st MP3 in NH said:
I'll have to call him up to confirm mine .....but sounds good..
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