LOL it took 2 pages for everyone to see what you were writing... I plan on doing exactly this when I can find a cheap pump... if I need to get extra flow for E85

 

FWIW, it's by no means a diy. I would NOT drill out the fittings/etc on the pump as he did in the other thread simply because the tolerances are so incredibly tight...shavings you can't even see with the naked eye can screw up the pump or drastically shorten it's life.

Second, diesel shops are the ONLY vendors around who have the equipment to work on DI components, these are companies who have the ability to rework an injector's nozzle and so forth...no offense to zzp but I don't think you guys are so hardcore you have a room dedicated to measuring and QA...with a stone bench and tools capable of measuring down to .0000005 inches. yes i put six zeros in front of that.

 

thats normall for me ryan. ive posted a couple times on things no one has noticed just like if we could run methanol lol.. i can buy in bulk like i told you a couple weeks ago. 550 gallins would last a while

 

methanol does break down over time, i forgot the tme but if you cant use 550 gallon in 3 months dont buy it unless you have people who will be buying it from you!!! i used to buy 55 gallon drums

 

i can sell it to guys we use to dirt track with. but buying in bulk like that its less than 2 dollars a gallon. but if i cant run it or it wont make a difference im not uying it.

 

yeah i understand, i love the meth.... ummmmmm

 

LOL, you can put 15 zeros in front of it if you want. It's not going to sound any more impressive because it's just talk either way. It doesn't actually mean anything at all. FWIW, I stated that we talked to a couple people about upgrading the pump. No one ever claimed that we would do this here.

 

Wondering is this Bosch HPFP worth getting? LINK

FYI: this pump is an high performance pump that just came out last month (2/15/2011)

 

Wow, that looks quite promising there. It almost looks like a direct swap. Good find!

The fuel pipes will probably need to be reshaped, but that looks like the best swap option so far.

I was looking into something like this yesterday and found some information about Eaton creating a HPFP. I couldn't find any further information on the price or direct swap compatibility of their version though.

 

Update:

Did some more research on this Bosch possibility. I found another version here: http://www.bosch-motorsport.com/pdf/...umps/HDP_5.pdf

But MAN... look at the price for those things: HDP 5 and HDP 5-FD Bosch Motorsport - Fuel Pumps

I've called/contacted Bosch with an inquiry, using the part number of the controlled unit. They said they'll call me back, and we'll see what they say as far as potential compatibility.

 

Another update:

Got a call back from an engineer at Bosch. I was asked if this was for a Diesel application, and I was like "noo... it's a Direct Injection E85 application... lol", and told him a brief summary of what we've been facing.

He didn't know much about our engine (I addressed this as an LNF thing instead of a Cobalt thing in case they did work for the other LNF applications), and also wasn't familiar with the part, as it wasn't showing up in their system. Due to him not knowing much about the engine or the part, he wasn't able to really tell me much, nor was he able to give me a name or contact info of somebody else that may be able to help further.

Sounds like that's a dead end for now.

 

It's not a dead end - it's just the beginning!!!!!

Found out today from my distributor, "this is DIRECT HIGH PERFORMANCE REPLACEMENT for our current Bosch HPFP unit, for not only for Diesel (VW/MB/PORSCHE/AUDI) but also for GAS (GM/OPEL/HOLDEN) & ALCOHOL (GM-BRAZIL) applications", it gets better - also found out, the HPFP Bosch unit in the new 2012 Buick Regal (FlexFuel option) & Regal GS will have higher flow rate compared to our HPFP Bosch unit, also found out the 2010 Camaro Bosch HPFP unit is high flow unit as well (Things That Make You Go Hmmm...).

But the only problem is the cost for each Bosch HDP 5-FD unit, it's US$2056.76 ($1352.21 my cost) plus tax/ shipping from Germany.

 

1300 bones that's ridiculous..

Guess that Delphi GDI pump was way off that I posted....

 

crazy for a fuel pump!!

 

That Eaton HPFP is for the 2010/11/12 Camaro.. Most of the DI cars GM has made (2010 up) has a Bosch HPFP unit. GM & Bosch have agreement in place, Bosch supplies all fuel related parts to GM until 2008-2018.

 

Not really... diesel engine pumps run upwards of $5,000 for upgraded ones. But they are injecting up to 40,000 psi in some of the gnarly diesel trucks that do pulling runs and such... $2000 or less is a steal for a DI HPFP really... Or just wait to find a wrecked V-6 camaro and rip the pump off that from a junk yard for $100 bucks.

 

All the military guys I work with talk like that: as if things done in the military are the most accurate.....EVAR!!!

 

Is that truly the case? The specs for the FD unit rate it only up to 200 Bar (2900psi) which is the same as the standard HDP-5. The only difference I see is that the one we have now has an "integrated demand control for metering the amount of fuel supplied into the high pressure fuel system and an overpressure relief valve to limit the maximum fuel pressure. By metering the fuel into the high pressure system no fuel return line into the tank is needed." Aside from that little nugget it looks like the specs are exactly the same.

Bosch Motorsport - Fuel Pumps

 

Back from the dead..

Within the next few weeks - a Bosch Fuel Engineer from Detroit is coming out, to our School to talk about the "Bosch DI and it's future", it's part of the GM ASEP learning program.. I was floored when the professor talked about this during class on friday.. It was like listening to "Flowers Duet" by Jonathan Peters..

I will definitely ask a ton of questions:

1. The three HPFP units - [HPD 5-FD, HPD 5-FCV & HPD 5-FCV HP] & how they are used in different applications [OEM and Racing/Motorsports]..
2. HPFP cam lobe[s] what they recommend/offer based on applications [OEM and Racing/Motorsports]..
3. LPFP what they recommend/offer based on applications [OEM and Racing/Motorsports]..
4. FPR - Fuel Pressure Regulator - what they recommend/offer based on applications [OEM and Racing/Motorsports]..

 

Bump, curious what ever came of the upgraded HPFP talk and what gone in 10 finds out.

 

This still isnt done? Man the ms3 got a upgraded pump or internals way faster Just get a spare and go to the shops the vw's use I wish CP-e actually did parts for our car, this would of been taken care of already.

 

We upgraded with a larger fuel pump lobe. Are there Mazda's making the kind of power people are making with LNFs?

 

Not without blowing up!

 

HPFP is pretty damn expensive as well, pretty sure cams are cheaper. I was mostly curious because cams + a HPFP upgrade would potentially allow more fueling? ZZP has found other solutions for fueling though.

 

Ah you did do something, I haven't been on the forum for months while the car is stored. There are MZR engines over 400whp ya.