looking for all Big Turbo ms3's

[SuperStretch18]

If the MS6 is getting over 315 hp, why not use their stock fuel pump?

 

[tru-boost]

If the MS6 is getting over 315 hp, why not use their stock fuel pump?

the car they maxxed at 315 was a speed6 !!
it has the same exact fuel system. the high pressure pump is the weak link.
but it is not an easy thing to find an upgrade for.

 

[CaSHMeRe]

the car they maxxed at 315 was a speed6 !!
it has the same exact fuel system. the high pressure pump is the weak link.
but it is not an easy thing to find an upgrade for.

everyone, TRU is speaking the truth.

And its not as simple as just upgrading the fuel pump. The fuel pump is CAM DRIVEN. please read this. CAM DRIVEN and PLATFORM SPECIFIC!

Its a whole new ball game boyz!

 

[redspeed]

WOW! Do you have any links to this info? I'd like to read more on this.

 

[CaSHMeRe]

WOW! Do you have any links to this info? I'd like to read more on this.

i do, but the links won't work here. they will get little ******

so, i will quote CPE from M3F.

FROM CPE Directly !!!

We've essentially put that project on hold now that we've definitely found the limitations of the fuel system. Two SPEED6'ers were able to verify that the fuel system does in fact quit at 310whp, with 313whp being the highest dyno of the two. Since the stock turbo has dyno'd as high as 280whp, that means they paid about $2500 for all of 30whp.

http://forum.***************/index.php?showtopic=79248

Look at his fuel pressure versus the injector pulse-width. The two lines diverge because as the fuel pressure decreases, the computer compensates by stretching the injector pulse-width. This is a solid indication that the high pressure fuel pump is tapped:

And remember that the GT turbos also increase your boost threshold by about 1000rpm, so they have added lag too. Needless to say, they're probably not happy campers at the moment, and we're actively trying to find a fueling solution for them. We just got a donor SPEED6 in the shop, so our investigation into the fuel system will begin this weekend.

But we don't want to spend time developing our turbo that's capable of 550whp, when we can only eek out another 30whp from the fuel system. So once we finish the fuel system we'll revisit the turbo upgrade and integrate our fueling solution into the turbo kit. But rest assured, our turbo kit is still within our radar, and we'll resume work on it once the other puzzle pieces are in place Smile

 

[redspeed]

Crazy!

 

[tsunami]

interesting/informative stuff... i figured the fuel would come into it at some point wonder what the audi guys are doing if they are doing anything when they run out of fuel on their DI engines??

 

[Haltech]

So its CAM driven. Must be a really small pump on the accessory side of the engine than. Time to go hit up some Powerstroke Diesel sites and see if they have solutions for DI.

 

[Boother]

Thre are TWO fuel pumps for the MS3 engine. One intank low pressure pump and one cam driven high pressure pump. The HP pump is mounted on the transmission side of the intake cam and is driven by a 3 lobe cam.

Here are the tech highlights.....

 

[fourthmeal]

can't see them, offsite image linking a no-no.

 

[CaSHMeRe]

would love to see them. save the images to your photobucket or something and respost!

 

[Kosh]

the image url is still right so just right click>properties>copy url and paste in address bar.

Right click copy image address on safari.

 

[Haltech]

the image url is still right so just right click>properties>copy url and paste in address bar.

Right click copy image address on safari.

(nuts) Safari? Ahem

He means pasting the link into Firefox...

 

[mrlilguy157]

i called the dealer and got the price of the cam-driven fuel pump: $447.80

not bad at all for something that pushes that much pressure and is that mechanically induced.

now time to call bosch to see what they have

 

[funkyman]

Direct injectors are far more powerfull than ordinary injectors i thought.The stock can handel 700cc plus can`t they?

 

[funkyman]

High Cashmere you guys should get in touch with GM Saturn technical department or racing development as they too have an almost identical setup on their Soltice and SKY Turbos with a 2.0 liter DI Turbo as opposed to our 2.3liter.They might know a way around the system.

 

[mrlilguy157]

High Cashmere you guys should get in touch with GM Saturn technical department or racing development as they too have an almost identical setup on their Soltice and SKY Turbos with a 2.0 liter DI Turbo as opposed to our 2.3liter.They might know a way around the system.

yes sir i was just reading about those DI cars.

pretty much all DI cars feature a camdriven fuel pump. the injectors will support a ridiculous amount of fueling, for they are only being used at 25% ish duty cycle with the stock tune.

i think i'm veering away from the dream of a BT mazdaspeed3. sure it'd be cool, but i'm from the VW/Audi scene and i'm dying for an aircooled. I'm thinking 2276cc turbo. at 300whp i'll run 9's in the 1/4