What's on your mind?


[140]

Live Feed

Jewber replied to the thread Possible HPFP upgrade for the N54 and N55?!!.
"
Quote Originally Posted by VargasTurboTech View Post
My friend I truly wish it were this easy. You are missing about 50 steps in the middle of that. How do you plan to spin the pump with the belt, secure the pump so its perfectly inline with the rest of the acessories so it doesn't throw belts, just to name a few. Ok so you get it mounted, now you want to push 2500 psi plus into the inlet designed to meter 70-100? Also running a pump inline would multiply pressure, we already know the DME doesn't like big pressure differentials, next the fuel control solenoid uses simple orings to seal itself from low pressure fuel passing to the different chambers, would love to see an O-ring that can hold back 2500+ PSI. Now you have zero control over HPFP. 4000 PSI at all times would make the DME very happy I'm sure, not to mention prob blow out the injectors. Your idea isn't a bad one in theory(except for a few fundemental flaws), but there is that pesky saying again. If it were easy it would be done already.

Edit: To be clear, your idea isn't flawed its actually very right on. Just the gross over simplification is impossible to ignore.
You misinterpreted my shitty post, I meant to run the two pumps in parallel. I would even size the drive pulley to only pump an extra 30% of fuel or however much extra I need. Since they are both positive displacement pumps I believe you can run varying flow amounts per pump.

Not sure how much shear the pump axel can take so I would build a bracket that houses a ball bearing and pulley so that the forces from the drive belt do not transmit into the pump itself.

The output of the lpfp would split into both hpfps. Keep the original low pressure sensor. Output flow from the second high pressure pump would be combined with the output of the original. I'm not sure where or how the fuel metering is done. I thought it was on the high pressure side and the solenoid basically changes the amount of fuel that goes back into the inlet of the hpfp. I could be wrong. "

Today, 05:49 PM

brusk replied to the thread Renntech BMW N54 Flash Tuning, 100+ wheel horsepower.
"
Quote Originally Posted by BuraQ View Post
Was your dyno before or after adaptation to the tune ie you already put miles on the tune before dyno ? The dyno results in the OP are premature before adaptation.

RENNtech's dyno which is a dynojet reflects similar numbers on a Mustang dyno. I did this cause i dont like dynojets which often read high, however, RENNtech dynoject reads low as it was on par with the Mustang Dyno I did at PROs tuning - another Cobb authorized tuner.

In real world experience I have pulled on N54's runing Cobb Stage 2+ (not disregarding I am DCT) and except for one that was a 135i.

So based on the real world performance results and dyno tests is the reason I said between stage 2+ Aggressive and E30 OTS maps.
Went in with Stage 1+ for a run and then switched to 2+ with no previous driving on it. "

Today, 05:38 PM

SexiPYm3 replied to the thread This is the 2015 F82 M4 S55 twin turbo inline-6 startup and exhaust note sound.
" As long as the M4 outperforms the old M3, which I'm sure it will do easily, I will settle and just add some mods for a different exhaust note! "

Today, 05:36 PM

AdminTeam created the thread NOOOOB: marcocoutinho.
" marcocoutinho, we appreciate you taking the time to join. "

Today, 05:31 PM

Sticky replied to the thread Quick update - YSI at 21 psi and C16.
"
Quote Originally Posted by Irishace View Post
Looking forward to some results Sticky, good luck.
Well it can only run stronger than last time "

Today, 05:31 PM

Torgus replied to the thread Quick update - YSI at 21 psi and C16.
"
Quote Originally Posted by ModBargains.com View Post
That's just retail price you see...not the price we actually charge customers
Which begs the question why not advertise the real price in the 1st place... "

Today, 05:31 PM

Sticky replied to the thread Quick update - YSI at 21 psi and C16.
"
Quote Originally Posted by mjmarovi View Post
lol, anytime I've asked for a price on something I've gotten quoted back a "deal" via email and when I check the site it's the same price listed. Sorry, but I bought my wheels elsewhere and that was a $3k+ sale. I still like you guys though, I've bought plenty from a Frank, but sometimes it's just not the best deal and I don't play the back and forth price match game.
They don't claim to have the best deal on everything. Nobody has the best deal on everything.

I can tell you my quote was definitely not the website price. The same for people I've referred. "

Today, 05:30 PM

Sticky replied to the thread Quick update - YSI at 21 psi and C16.
"
Quote Originally Posted by chrisisnapping View Post
did they get kw3 or go with something else?
KW V3. Apparently this is the best choice for the money. "

Today, 05:29 PM

BuraQ replied to the thread Renntech BMW N54 Flash Tuning, 100+ wheel horsepower.
"
Quote Originally Posted by brusk View Post
I wouldn't my car put down 369/419 on Cobb's Mustang with Stage 2+ with a curve that looked pretty similar to the Dyno they showed. I'm not knocking them as it's a pretty safe looking map with decent numbers perfect for the person that doesn't want to hassle himself with constantly logging and tweaking to get it set perfect.
Was your dyno before or after adaptation to the tune ie you already put miles on the tune before dyno ? The dyno results in the OP are premature before adaptation.

RENNtech's dyno which is a dynojet reflects similar numbers on a Mustang dyno. I did this cause i dont like dynojets which often read high, however, RENNtech dynoject reads low as it was on par with the Mustang Dyno I did at PROs tuning - another Cobb authorized tuner.

In real world experience I have pulled on N54's runing Cobb Stage 2+ (not disregarding I am DCT) and except for one that was a 135i.

So based on the real world performance results and dyno tests is the reason I said between stage 2+ Aggressive and E30 OTS maps. "

Today, 05:29 PM

mithiral67 created the thread Warnings to 335is owners and possible others?.
" Little back ground. I have a 2011 335is manual with 20k miles. Modifications include cobb flash, FMIC, DPs, Intake, and RB upgraded turbos. Everything was on the car when I brought it to the dealer but the cobb, I had uninstalled it.

So, I had my brake pad service indicator on for a month or so, with the miles indicator counting down. Took it in about 3 weeks ago and they noted that the pads were fine (60%) but that the system was off and needed to be updated. I said okay, no worries. Get it back the next day.

I have been swamped with work and didnít have a chance to put the cobb back on. One thing odd I noted was I wasnít getting an error for not having my primary cats and I wasnít see fuel pump codes (running e45 with a stock fueling system with RBs was taking its toll) like I was before bringing it in.

So, last week I had time to install the cobb and get Rom not recognized. I fired off to Cobb and received the following info from cobb.

I received your rom and have started to get working on it, but this is a completely new family of roms that I have never seen. Is this your first time attempting to install the Accessport, or did you recently get an update from the dealer? Just curious... "

Today, 05:25 PM

mjmarovi replied to the thread mjmarovi's Single Turbo build at Proven Power Tampa.
" Thanks man, figured I'd get this thread back on topic haha "

Today, 05:25 PM

jzeee037 replied to the thread mjmarovi's Single Turbo build at Proven Power Tampa.
" Lookin good. "

Today, 05:23 PM

Irishace replied to the thread Quick update - YSI at 21 psi and C16.
" Looking forward to some results Sticky, good luck. "

Today, 05:23 PM

mjmarovi replied to the thread Quick update - YSI at 21 psi and C16.
"
Quote Originally Posted by ModBargains.com View Post
That's just retail price you see...not the price we actually charge customers
lol, anytime I've asked for a price on something I've gotten quoted back a "deal" via email and when I check the site it's the same price listed. Sorry, but I bought my wheels elsewhere and that was a $3k+ sale. I still like you guys though, I've bought plenty from a Frank, but sometimes it's just not the best deal and I don't play the back and forth price match game. "

Today, 05:23 PM

bradsm87 replied to the thread Anyone running a smaller single turbo?.
"
Quote Originally Posted by bigdnno98 View Post
you guys are comparing single turbo numbers to twin turbo numbers though. I single turbo will have to run more boost, and create more heat thus be more prone to knocking on pump gas than a smaller set of twins will. It's really an apples to oranges comparison.
The exact reverse is generally true.

Bigger turbos generally have higher efficiencies (both compressor and turbine). This is because some things on manufactured turbos don't scale up with the size of the wheels. Things like the nut and face at the front of the compressor wheel and the space between the wheel and compressor housing. Smaller turbos have a higher percentage of their wheel size taken up by the big nut and face in the middle and have a larger gap (when considered as a percentage of the wheel size) for air to escape around the compressor wheel in particular. Look at a small Garrett compressor map and a large Garrett compressor map and you'll see that the bigger turbos have higher efficiency. "

Today, 05:22 PM

mjmarovi replied to the thread Quick update - YSI at 21 psi and C16.
"
Quote Originally Posted by Sticky View Post
I have the forum set to auto ban those people.
N54>2jz any day "

Today, 05:20 PM

chrisisnapping replied to the thread Quick update - YSI at 21 psi and C16.
" did they get kw3 or go with something else? "

Today, 05:20 PM

Sticky replied to the thread Quick update - YSI at 21 psi and C16.
"
Quote Originally Posted by ModBargains.com View Post
That's just retail price you see...not the price we actually charge customers
This is true I got a really great quote from them but Gintani already bought the coilovers before I even sent the e-mail... whoops. "

Today, 05:18 PM

Sticky replied to the thread Article: CARB (California Air Resources Board) orders BMS (Burger Tuning) to cease and desist the sale of BMW Aftermarket Performance Parts In California.
"
Quote Originally Posted by rawad1017 View Post
so that's the way this country works huh..either you get $#@! weather and $#@! living conditions but the goverment leaves you alone, or you get beautiful weather and atmosphere but the government is up your ass..
They are up your ass everywhere. Some guy in Nevada is getting fined or his cows confiscated or something because they wandered over and grazed on government land. The cows read the wrong signs apparently. "

Today, 05:17 PM

Sticky replied to the thread Article: CARB (California Air Resources Board) orders BMS (Burger Tuning) to cease and desist the sale of BMW Aftermarket Performance Parts In California.
"
Quote Originally Posted by inlineS54B32 View Post
I am thinking so - must have been fire code... Oh, and I talked to him after this - he put in an extra door for the waitresses/kitchen - and didn't get a permit. Fined for this also.

Again, I understand having 100 people in a 10 square foot place is bad news bears, but it just seems a bit fishy - the place has been open 10 years. His dad is pissed.
This whole country is getting so ridiculous I don't even know what to say anymore. I don't know where things are headed next but things certainly aren't getting better. "

Today, 05:16 PM