Man it SUCKS being the only knuckle head that is not willing to follow the heard.

I will keep checking into finding this high volume/pressure CORN squirter, somebody out there knows what one will work and I will find it. Even if I need to hack into BMWs database and start comparing specs and part numbers.

Did you two read the last few posts? LB's maxing his stock pump out with 350ish HP on regular gas, E85 = 30-40% more fuel than normal. When I build the DEATH ROCKET MOTOR, I will be lucky to see 300HP on E85 before the stock pump is at its max output and puting itself out the door, so I'm going to need to do something when that engine gets built. MABY an external is the only way to go, AEROMOTIVE makes one that can support 2000 HP if you have it(and many others for more reasonable power levels),then it would really sound like a jet.

 

Hey Rick, you're going to be just fine w/OE pump for a while. Sent a pm.

 

Yes I read those posts. A 500whp Turbo-only R53 is running the factory fuel pump with a return style fuel rail with zero issues.

 

G' DAY Sandman !! Walbro 255LPH pumps~~ I've located 7 / seven seperate pumps ranging in $$ from $ 90.00 to $126.00 (U.S.) Pumps are in-line or in tank ~~your choice; 6 of the 7 ARE in tank and 1 is in line . ALL are 255lph and available IMMEDIATELY from lil company called ~~uh~~ oh yeah SUMMIT RACING ! Yer Wellcome & keep yo head down ~~~~~~~~~~~~~dvh OBEY

 

Thanks Fish, I have ran a few searches on Summit(I get universal parts from them all the time)and have never found a MINI specific pump. I will look again, or what type of in tank pump do I use?

As for 500HP on a stock pump I really dont belive that, maby 500 @ the butt dyno but I am looking for REAL HP numbers and a stock 140lph pump aint gona cut it.

 

1 lph = .26 gph how much fuel are you thinking you're going to use??? Dinan used a big pump & presure reg, OE "S" injectors, software - for an upgrade.

A pump & P reg is cheaper than injectors. ALL Walbro pumps - in tank - are almost IDENTICAL. Some OEs are clamped to the gauge & pickup assembly.
I know of, at the very least, 1 fox body drag car with a 255 that runs alcahol... WITHOUT any issue. Bottom line, there is no Mini spec pump that I'v seen - there might be a BMW pump but it's not important - as it is an easy mod for almost any Walbro pump....

Go here http://www.rceng.com/technical.aspx = good gestimate

 

I just think your spending your money where it doesn't need spent. I will be out in Denver in August for MITM/MTTS if your back in the states then I would be willing to give you a ride in my very well built R53.

 

Steve, when the DEATH ROCKET gets built it is going to use a lot of fuel, a stock pump MIGHT keep up. But when I build that engine it is like the suspension that I am puting togeather now, I dont want any MIGHT's. (Other than the tranny MIGHT not hold it, for long. ) So what you are saying is that I should have kept the Walbro I had for my EVO (stock lasted 3 dyno runs @ 28psi of boost, with 750cc RC Injectors, running 100 octaine gas (E85 hadent cought on yet "2006"), the car was puting out more than 300 AWHP and the pump heated up and turned off. Luckilly the shop where I was tuning it had the Walbro, and had it installed pretty quickly, still a PITA though. Tobz my tuner and weekend buddy has a double pump in his car now because a 255 wasnt enough, but he is also knocking on the door of 750hp. That car is scarry to ride in the 38psi of boost kicks in the car lurches sideways all 4 tires light up, and youre gone.

Checkmate, thanks for the offer but you know my current situation, and I'm not leaving any time soon unfortuneatly. I might take a little leave but I doubt I would get that block off. I have been to the last 3 MITM events and I am gona have to miss the biggest one to date, I will be there in 2011 though.

 

Is the EVO a pump around fuel system? There're too many possible causes - fuel pump failure. In the mean time what you have will work fine....Buzzkill Asphalt Distroyer & Intense G force device is a different animal......

If it were me I'd run a pump around system with an inline pump. At this point the voluum of fuel & pressure are unknown for this app. There are a number of options to consider - should be a hands on decision IMHO.

 

Yes it is a return system, what caused it to fail was the pump overheated and shut down, its a pretty comon problem that I at the time didnt even want to belive. The pump still worked but just shut down from too much heat, a side effect of trying to pump too much fuel all at once, I swaped in the Walbro just so it wouldn't shut down on the track or worse off, on the street/highway. Problem solved, it added a little more noise but I grew fond of the whine(think turbine engine in ite priming phase of start-up) it wasnt so loud that it was unbareable to riders either, but the way I drove that 12 second beast around corners WAS.

I think this pice is going to require me being home to make sure I get the right pump so I can compare/ see how hard it would be to adapt a different unit. I might see about running a external somwhere under the hood, instead of an in tank. But like you said it will work fine for now it will be a while before I can think of building another motor, so I have plenty of time.

For the next topic in this thread, (WOW I've created a forum in a forum ) On the intake side of things there is the S/C inlet pipe, M7 adressed this with the AGS but discontinued production, but is it worth fabricating something better than the AGS? All you really need is a way to make a plate for the throttle body to mount to(check my best friends dad has a mill in his shop to make blower parts), to determine an appropriate size piping(I can figgure it out), somebody who can weld aluminum(got that), and a plan(working on it). I would want a bigger diameter pipe, but would want to keep the T-body in the stock position to use any stock or aftermarket intake. The hardest part would be making the oval end that attaches to the S/C exactly the right size / shape.
I have built a lot of competition grade sound systems in the past and know what a tuned port can do for flow and resonance / harmonics but, what can it do for horsepower? I am thinking a verry large main body, as big as will fit in the space, with a semi floating tube matched in size to the throttle body exit, tuned to the right frequancy to cause a vibration under load and induce a little better incoming air density into the S/C, simple concept right? If the pulsations from the vibration did nothing at all for the air density folw would stoll be increased from having the smooth / streighter piping, and it would probably make the charger sound pretty wicked aswell. Another good side effect would be that the bypass inlet wouldnt be in the secondary chamber with all the incoming air, cutting down the turbulance created by that hole. Instead the bypass would be plumbed into the main chamber that the secondary floats in, so the bypass would still function normaly. I would need to draw a pic to explain it any further( I will start on that tomorrow), but it is just one more idea that I dont know if it has been tried, but has the potential to work.

 

The pump just IS not that difficult. You can get an inline alcahol pump & install it anywhere ( not under the hood - not a good place ).... IF NEEDED.

AGS??? untill someone can show some real world numbers.......

In the "old days" it was always the head - still true today. If you had 1 thing you could change to make the best numbers..........

For what you want, SC mods, I'd look at the Rotrex setup - runs cooler, more efficient.... lots more potential than our Eaton.

Man, I have been using this netbook I got just for travel & REALLY likeing it way better than my PDA.....

 

I would agree that the head is the biggest restriction, but I'm still not changing it on this motor, there are still plenty of places to get a little more air through. This one seems pretty simple to fabricate an alternitive, so I figure it would be a decent start, and maby a couple hidden horses. Cooler temps before the S/C, better airflow to the S/C, and possibly a slight change in air density using soundwaves from the vibrations to alter the incoming air, plus it would probably sound pretty cool, and be cheap to build, all it would take is the time and a little testing.

As for the Rotrex, its not for me. I love the sound of the Eaton, and wouldn't give it up. With the DEATH ROCKET plans the M45 will be plenty, it will only use a stock, or maby a JCW sized pulley, and rely on compression and airflow(head, cam, intake, exahust), and a little more displacement to make its power, with the alchohol used to keep it somewhat safe. When I get to building that motor it might turn out to be one of the most powerful M45 cars , or it could end up all over the track.

I've been using a HP (NOT HORSE POWER) netbook since I started posting, I love it. Its just the right size and I couldn't imagine using anything smaller.

 

I like the sound of a roots supergharger period. There's a guy that lives a couple of towns over with a 32 hi-boy - w/ 49 merc, w/Arden heads & an old Scott blower shat really WHINES. IT SOUNDS GREAT, nothing like it.......

There are some mods that can be done to the MP45 - work intensive - weld filling - along with intake work that MIGHT give some improvment, worth a try. Just matching ports - intake & exhaust adds.

For a pulley, just go 15 it's a tick better than a JCW, that's just a TICK & you can opt for a little smaller if you want. Blowers love alcahol.....

 

The problem with doing the 15% on the D/R is I am going to run 9:1 or 9.5:1 pistons, still friendly with lower boost levels but, not as stable as the 8.3:1 that are stock. It is best to start with the lowest boost, check knock levels, revise the tune, then if all is still good, move the boost up with a smaller pulley(and repete the process if nessicary). The rased compression will help out the bottom/mid range of the powerband, and the HUGE cam / head will make the top end pull like a train. The .040 overbore wont do a whole lot but, the increases seen from it will be seen throughout. All of this while keeping the IAT's of a stock S/C system(with a little more intercooler).
The exahust might get a little warmer than most would like though, hopefuly Jans header is up to dealing with the EGT's, and header wrap.
Might need Swain to coat it inside and out.

Man your neighbors rod sounds cool, my best friends dad, owner of L&M Superchargers, in Denver has had some mean blower builds show up at the house. He useto build the Weind 1471's on the Nitro Fish NHRA car, and he has done hundreds of private builds/ installs, but the little M45 is to small for him to even try(the M45 could fit inside of a 671 which is as small as he normaly goes.) Cant beat the sound of a 1471 on a 572.

Another thing I wish would get produced is a toothed (no more slipping belts) pulley and belt set for the MCS, it would add that nice comforting but dont mess with me whistle at idle.

 

How bout ditching the e-85 idea, get rid of your cats and use avgas?

 

Ugh lets see Dubyas,
1) The PRICE, E85 is way cheaper.
2) The nearest small airport is 20 miles away.
3) Aviation fuel has a higher combustion temp than E-gas.
4) Colorado is mostly a emisions controlled state, where the car is registered is NOT
5) I would lose the glow that emits from my tail pipe at night.
6) I realy dont see a big enough advantage to using it.

E85 is the cheapest way to use a 100+ octaine fuel on a semi daily basis, and dosent require any permits to use so, why wouldnt I use it.

 

Here is the basic design of what I want to build for a S/C inlet pipe. It is a pretty basic design that will need to be modifyed for clearance(water pump ect.) but, the inside tube wont need any turbulance causing aditional ports and only one slight bend.

 

Ok wow just when this thread is finaly dead and gone from everyones mind, I cant sleep and get another hairbrained idea.
This time it is not even a part that would make (or hell even have a possibility of making) more power.

The bypass valve, YES it is needed(no big secret here) it releves all the pressure from your supercharger at idle/ part throttle, so you arent pushing boost at a stoplight. It works great(as long as the butterfly valve seals properly) and does its job in a civilised manner. Why would anybody want to change that?
Because sometimes there are people that hate being quiet and civil, I want some damn NOISE!
In the bypass valves (BPV) stock configureation it recirculates the air after the throttle body to cut down on noise using the closed or partly closed throttle body as kind of a muffler. Is it nescicary to have this configuration? I dont think so, I'm no technical engineer but you would still be getting the same ammount of air into the engine if it where vented into the open air like a turbo's Blow Off Valve. I would need my car to give it a try but if my thought process is right it shuld work, giving me some pretty intimidating sounds under the hood.
What I would do is disconect the hose from the BPV to the S/C inlet pipe. Block off the inlet pipes hole with something that would provide a total seal. Put a 90 degree bend on the BPV. Then find a way to plumb the air that comes out of the valve up to the main intake pipe, the closer to the filter the better(More sound this way). Sounds simple
If it works like I think, at idle you would hear the sound of a massive air leak(think hooking 4 feet of garden hose to an air compressor). At part throttle the same but at a higher pitch, and at full throttle the engine would sound normal. The real magic would happen when you go from full throttle and let the throttle body slam suhut, causing the BPV to open abrubptly, it would sound like a purge valve on anything with air brakes then go back to its garden hose air leak rutine.
Sounds cool to me, thought I would share. Now it is time to try this whole sleep thing again.

 

do yourself a favor............don't try to "out think" these "stupid" BMW engineers...... they didn't fall off the turnip truck yesterday

if you have done any data logging you will soon see what I'm talking about

 

Hey Rick, how's the tan doing? New Ray Bans? Yet?

Blow off - By pass = 2+2 =5 They are not the same, nor do they do the same...... I'll leave it at that.

 

Hey Steve havent heared from you in a while. It isn't even hot here yet, it has been around 110- 117 degrees for the most part. The good news is I am almost done buying all the parts for my car, but I'm still not going to be home any time soon.
I know that a blowoff valve and a bypass valve are different and act differently, but is it absolutely nescicary to have it dump back in after the T/B? The worst that I could see with it open is either a realy rich condition at idle, or the S/C not moving enough air and making a giant air leak(sucking kind) out of the BPV.

As for you Jan, how about you explain why it will/will not work instead of making some wise a$$ crack trying to insult my intelligance. I know that I am not one of BMW's engineeres, nor do I think that I know better. All I was asking is, is it possible to move where the BPV dumps the un needed air to the other side of the T/B. Talking theese things out is why I joined this forum in the first place, not to get smartassed by people like you.
So you say it wont work, you mind telling WHY? Or are you too bussy replacing the head gasket on your car, because you forgot to tighten a clamp. See the comments can work both ways.
Oh where's my header? I ordered it 2 months ago still no sign of it. Did you ship it to the wrong place again?

 

I'd say you have a BIG problem then
it was delivered on the 4th

 

What it is sand man, Only 110 -117f, that's not good enough if you plan a vacation on the sun.....

"I know that a blowoff valve and a bypass valve are different and act differently, but is it absolutely nescicary to have it dump back in after the T/B? The worst that I could see with it open is either a realy rich condition at idle, or the S/C not moving enough air and making a giant air leak(sucking kind) out of the BPV." A blow off - will have no purpose = none. The by pass is for efficiency - no extra power used to drive the blower when you don't use boost. I know you know this...... With a blow off, there's no way to controll it - just a big leak - this is the simple explanition.... The "in depth" would take some time.... Trust me on this, you don't need or WANT A BLOW OFF for a displacement blower...
Stay cool, calm & collected over there,
Steve

 

Ya you are probably right, it was just a thought, but I might just try it when I get home to be sure.

I have bigger problems to worry about right now if this header isnt at my house.

 

Rick, just zip tie the BPV.... you'll see that a BOV will serve nothing = 0

You'll like the header - It's GOT to be there.....