How much power can a bigger turbo add to a N54?
· Some N54 stock turbos hold up for years at 20+psi, and others might give out within a few years even with a modest 15psi. The risk is always there when upping the boost on stock turbos. Anyways, I’d say 15-17psi is a good range to stick with if you want to keep longevity.
How much HP can a stock N54 hold?
· N54 forged cranks are STRONG and can handle 1000whp, if not a couple hundred more. If you're pushing the limits of the N54 then be cautious with torque, especially at low RPM's. Small TD03 turbos should be left on the lower end of the N54 upper limits; bigger turbos are easier on the engine.
How long do stock N54 turbos last?
· 38 PSI of boost is a lot for N54 regardless of the turbo's efficiency. You would be pushing a ton of torque and while the block should stand up for at least a while you'll probably be looking at new forged pistons at a minimum, and maybe new rods depending on how low you make that boost.
How much boost on stock turbos?
· The N54 on stock internals should be left around no more than 600whp/wtq. Anything beyond that to about 850whp should have at a minimum upgraded pistons and rods and better bearings. Beyond that you start looking into closed decks and etc. This is for longevity. 500-550whp is really the safest power for reliability on stock internals.
How much power can stock N54 turbos handle?
The N54 can handle around 600-650whp and 550-600wtq on the stock block and internals.
How much boost does a N54 have stock?
8.8psi is the max boost for totally stock n54 135i.
How much boost can a stock 335i handle?
Generally speaking, depending on fuel and timing, stock twins are happy up to ~18-20psi.
How long do stock N54 turbos last?
The turbocharger centers should definitely last upward of 100k miles if they are not abused (pushed to the max regularly) and are well maintained.
Are outlets worth it N54?
N54 Outlets Horsepower Gains Higher boost and more aggressive tuning will result in more impressive results. Expect horsepower gains in the ballpark of 10-25whp on most applications. As with N54 inlets, torque gains will be most impressive.
What size are N54 turbos?
The compressor is measured in mm. Precision Turbos 6266 or 6466 are common N54 single turbos. The first two numbers represent the size of the compressor wheels, 62mm and 64mm respectively.
How much HP does MHD add N54?
320-370whpExpect your N54 MHD stage 1+ tune to put you in the ballpark of 320-370whp. As with any of the N54 stages, 91 octane will result in lower boost targets and horsepower.
Does N54 have forged internals?
No N54 or N55 has forged internals, lul. The only thing forged on the N54 is the crank, period.
Is the B58 better than the N54?
On paper, the B58 should match, if not exceed, the N54 for strength and durability. Although, the single turbo will likely limit its capabilities without upgraded turbo(s).
Will the N54 turbo fail?
The N54 Wastegates fail from simple wear and tear of the engine. Over time the actuator and rods of the turbocharger wear down, resulting in rattle and boost control issues. In this case, running higher levels of boost (psi) on your turbochargers will likely increase your chances of Wastegate failure.
How many miles does the N54 last?
The N54 can and often does last 200,000+ miles if you're willing to spend enough money. If the repairs are done right the N54 can offer good reliability and longevity. You'll just end up spending more money on repairs and maintenance than these 10-15+ year old cars and engines are worth.
How long do twin scroll turbos last?
Turbos are designed to last the lifetime of the vehicle (or around 150,000 miles); however, it's possible for them to wear out over time depending on how hard you drive the car and the original build quality of the turbo.
How much HP does a N54 have?
The N54 can handle around 600-650whp and 550-600wtq on the stock block and internals. We'll talk about this more in-depth later in the post. For now we're keeping it simple, but this next paragraph is important.
How much horsepower can a N54 crank handle?
N54 forged cranks are STRONG and can handle 1000whp, if not a couple hundred more. If you’re pushing the limits of the N54 then be cautious with torque, especially at low RPM’s. Small TD03 turbos should be left on the lower end of the N54 upper limits; bigger turbos are easier on the engine.
What are the parts of a N54?
Stock N54 Rods, Bearings, Pistons (600-700whp) These are the first parts to give out on the N54. Most blown N54 motors begin with the pistons, rods, or rod bearings. The rods are forged, however pistons are not. N54 rods are strong, but they’re not indestructable. A serious detonation event at 600+whp can quickly bend a rod.
Why are the N54 rod bearings failing?
Then again, some rod bearings seem to hold lots of power for 200k+ miles. Rod bearing failures on the N54 are often due to poor maintenance and oiling.
How much horsepower does a PT 6466 turbo have?
A large turbo like a PT 6466 or 6766 can probably hold 700whp on the stock N54 engine. We quoted 600-650whp to be conservative. Though, 600whp is getting aggressive for small TD03 twins. Here's a slightly different breakdown by turbo setup:
How to fix N54 if it's hot?
Stay on top of problems when they pop up. Turn boost down until the issue is resolved. If your N54 is getting hot give it a gentle cruise for things to cool down.
What is the strongest part of a motor?
The N54 crankshaft is likely the strongest part of the entire motor. By far.
How much horsepower should a N54 have?
The N54 on stock internals should be left around no more than 600whp/wtq. Anything beyond that to about 850whp should have at a minimum upgraded pistons and rods and better bearings. Beyond that you start looking into closed decks and etc. This is for longevity. 500-550whp is really the safest power for reliability on stock internals.
How often should I change oil on a 600 HP car?
I really think maintaince is key with a number at/over 600. You need to change oil every 2500-3000 miles with something high in zinc content aka Rotella, Motul, Torco etc. Make sure OFHG is taken care of. Make sure you address oil cooling and trans cooling (If 6at). Be on top of maintaince and it'll work out in your favor if you legitamently cover all points. Change EKPM every year. Small things like this add up in costs and ultimately that's what scares most of the crowd away. The reality is you are driving a 600+ hp car, its gonna need extra attention.
What is the max boost for a stock turbo?
Map 7 (19 psi max boost at mid range) is about the max for stock turbos.
How much does a 100k mile turbo weigh?
my 100k mile turbos with stock inlets that have been tuned a while make 20-20.5lbs in the midrange and taper to 16lbs near 6500 rpms. running an e85 mix.
Is 3.5bar a tmap?
No. It exceeded the 3.5bar Tmap, so it was actually 36+ on a JB4 log.
Can you damage turbos at 100% duty cycle?
There is little risk of damaging the turbos even at 100% duty cycle but if you let back pressure get out of hand on the wrong tuning will definitely take out a piston.
When is an intercooler necessary?
intercooler is absolutely necessary when going 8psi and above.
Is Tune a given intake?
Tune is a given for any sort of F/I. Its not an intake you're changing
Can you boost 6 PSI without an intercooler?
some will say its safe to boost 6psi without an intercooler. as some kits do not have one at 6psi.
Is 8-9 psi stage 2?
8-9 psi is stage 2 (does not need any internals, no offshelf kit does) some will say its safe to boost 6psi without an intercooler. as some kits do not have one at 6psi. intercooler is absolutely necessary when going 8psi and above. all requires tuning whether its through the DME or its running a "dual standalone".
Does a non turbo ECU have a fuel map?
I guess since the non turbo ecu runs pre programmed fuel maps then it wouldnt find a map for all the extra oxygen and might run a wrong air/fuel ratio . too reach or too lean.
Can you add boost to a stock DME?
The correct answer is ZERO psi. You can not add any amount of boost and expect any sort of reliability from the car if you are expecting the stock DME to adapt. You will need a tune at a minimum, possibly injectors. Just buy one of the many reputable kits available, they will come with everything you need for proven performance.
Does DME compensate for boost?
Wrong. Myth. The stock dme does not compensate for 6psi of boost
How many logs does a stage 2 turbo do?
About 7 or 8K with the Stage 2 turbo doing three No Fly Zone events and 100's of logs. Another 3-4K on a Stage 1 turbo.
Can an F series turbo run without a MAF?
F series can run without the MAF with JB4, E Series can not. You are deleting the DV that is in the stock turbo housing, so you need an external DV or BOV or you can get an EFR turbo that has an internal DV.
Can BMS be used on public roads?
BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways.