[Fundguy1]

Originally Posted by Tiago@VRSF

Probably 2.5-3 hours additional labor.

Thx.

[Give_Em_The_DD]

Originally Posted by jtswole

Yes, stock turbos, with MMP inlets.

Stock turbos on an absolute kill tune/glory Dyno run...and not indicative that mmp is "best for power" - inlets in general = more power.

It's not a secret mmp (Maurico) isn't concerned about blowing up the stock turbos.

[bradsm87]

Originally Posted by Give_Em_The_DD

It's not a secret mmp (Maurico) isn't concerned about blowing up the stock turbos.

I don't think added power due to inlets makes stock turbos any more likely to blow up. They just reduce the amount of vacuum before the turbo so you can set boost higher but the compressor's pressure ratio and wheel speed stays roughly the same.

[Give_Em_The_DD]

Originally Posted by bradsm87

I don't think added power due to inlets makes stock turbos any more likely to blow up. They just reduce the amount of vacuum before the turbo so you can set boost higher but the compressor's pressure ratio and wheel speed stays roughly the same.

While inlets do help the turbos work less-that Dyno record was set using around 30 psi if I'm not mistaken.

If you think that isn't going to "work" the turbo more, I don't know what to say. It's well outside its efficiency range. I don't think anyone should be shooting for 500 whp on stock turbos + inlets and think it'll last, there's a reason why only 1 car has done it

Hypothetically mmp could have ran 40 psi and I doubt the end # would be drastically different than the 508 on 3x psi

[Fundguy1]

Originally Posted by Give_Em_The_DD

While inlets do help the turbos work less-that Dyno record was set using around 30 psi if I'm not mistaken.

If you think that isn't going to "work" the turbo more, I don't know what to say. It's well outside its efficiency range. I don't think anyone should be shooting for 500 whp on stock turbos + inlets and think it'll last, there's a reason why only 1 car has done it

Hypothetically mmp could have ran 40 psi and I doubt the end # would be drastically different than the 508 on 3x psi

Stock is 7 psi. 28psi is 4x. 42 psi would be 6x.

[Grand_hustle17]

Originally Posted by Give_Em_The_DD

While inlets do help the turbos work less-that Dyno record was set using around 30 psi if I'm not mistaken.

If you think that isn't going to "work" the turbo more, I don't know what to say. It's well outside its efficiency range. I don't think anyone should be shooting for 500 whp on stock turbos + inlets and think it'll last, there's a reason why only 1 car has done it

Hypothetically mmp could have ran 40 psi and I doubt the end # would be drastically different than the 508 on 3x psi

I think there is more than 1 e90 over 500whp on stock turbos. Infact my buddy in georgia was pushing 24psi on stock turbos and made 52xwhp and his was daily. Good thing is mine isnt daily. Anyways i do intend to upgrade turbos. The car isnt a daily driver so ill have time even if the turbos blow up 1 day after

[Give_Em_The_DD]

Originally Posted by Fundguy1

Stock is 7 psi. 28psi is 4x. 42 psi would be 6x.

Theres a point of diminishing returns.

Stock turbos at 40 psi I can assure you would not be 6xx whp...... Feel free to try tho

[Give_Em_The_DD]

Originally Posted by Grand_hustle17

I think there is more than 1 e90 over 500whp on stock turbos. Infact my buddy in georgia was pushing 24psi on stock turbos and made 52xwhp and his was daily. Good thing is mine isnt daily. Anyways i do intend to upgrade turbos. The car isnt a daily driver so ill have time even if the turbos blow up 1 day after

Then. Your buddy has the new world record for stock turbos by about 12 whp and 6 psi less than MMP.....doesn't seem likely but hey

[Grand_hustle17]

I saw the dyno sheet but i guess its up for debate even then too huh. Im not shooting for records personally. I would love to get 500whp myself but if thats not the case then so be it. The only thing i care about is when i hit the drag strip my trap speed is over 120mph lol.. I dont even care if the times are 15.9 roffl!!.

I currently trap 116mph and thats with a 2.2 60' and launching from 0 RPM (not really trying to break anything)

[BMSE92_Harry]

When installing inlets, is there other maintenance item to get it done and out of the way with the amount of parts that are being take off?
I have 108k and thinking about getting all the coolant line and vacuum line replaced

[Give_Em_The_DD]

Originally Posted by Harrychiu012

When installing inlets, is there other maintenance item to get it done and out of the way with the amount of parts that are being take off?
I have 108k and thinking about getting all the coolant line and vacuum line replaced

Do the turbos

[Grand_hustle17]

I wanted to do the same

[Shadow007]

So VRSF or MMP that is the question? From what I've read it seems that MMP's kit has bigger pipes 2.5" compared to VRSF's 2" and on top of that VRSF still has a pre order option. I'm not sure if an extra 1/2 inch makes a huge difference,*insert that's what she said joke* but for the price and the look of things they're damn near identical. I may just go ahead and place this order and call it a day...

[musc]

Originally Posted by Shadow007

So VRSF or MMP that is the question? From what I've read it seems that MMP's kit has bigger pipes 2.5' compared to VRSF's 2' and on top of that VRSF still has a pre order option. I'm not sure if an extra 1/2 inch makes a huge difference,*insert that's what she said joke* but for the price and the look of things they're damn near identical. I may just go ahead and place this order and call it a day...

I'd say neither. If TFTs aren't in your in budget check out precisionraceworks inlets. Only a little more than the ones you mentioned and still passenger side inlets.

[Rob@RBTurbo]

Starting late next week we will finally be relieved of our extremely large Group Buy, and then our inlets will then be available for $399 to those who maybe interested. There is a 1.75" version which works with all stock frame turbo setups, and a 2" version that works with the few available "larger" setups such as our Super RB Stealths, Pure Stage 2 (with upgraded Snouts), and VTT 2+.

They are fully adapted with CNC'd fittings anodized black, use marine grade SS316 worm clamps with tails specifically to protect the hosing, and work with every possible configuration (ie. BOV's, diverter valves, PTC heaters, etc); meaning you have an extremely versatile inlet system that has all bases covered, appears OEM, and installs without relocating anything.

Thanks,
Rob

[Jeff@TopGearSolutions]

Originally Posted by Give_Em_The_DD

Theres a point of diminishing returns.

Stock turbos at 40 psi I can assure you would not be 6xx whp...... Feel free to try tho

Not only that but just because you double PSI doesn't mean the turbo speed doubles, the turbo speed could be 3x or more to meet those targets.

Boost is not a measure of turbine speed, it's just a measure of restriction in the manifold.

[Rob@RBTurbo]

Originally Posted by Jeff@TopGearSolutions

Boost is not a measure of turbine speed, it's just a measure of restriction in the manifold.

Boost is a measure of the restriction across the turbine side of the turbocharger.

Rob

[Jeff@TopGearSolutions]

Originally Posted by Shadow007

So VRSF or MMP that is the question? From what I've read it seems that MMP's kit has bigger pipes 2.5' compared to VRSF's 2' and on top of that VRSF still has a pre order option. I'm not sure if an extra 1/2 inch makes a huge difference,*insert that's what she said joke* but for the price and the look of things they're damn near identical. I may just go ahead and place this order and call it a day...

New VRSF orders with their dealers such as us should be shipping by next week.

Originally Posted by Rob@RBTurbo

Boost is a measure of the restriction across the turbine side of the turbocharger.

Rob

I don't disagree but eitherway, the point is turbine speed does not equate to PSI in a linear fashion necessarily.

[Rob@RBTurbo]

Originally Posted by Jeff@TopGearSolutions

I don't disagree but eitherway, the point is turbine speed does not equate to PSI in a linear fashion necessarily.

Since there is a wastegate that does the PSI control, for sure.

However each turbine has a choke point at some RPM where it's flow potential is simply done. At this point more boost will not make more power, as the airflow through the system is at its theoretical flow limits (ie. the restriction of the turbine has reached its limit) due to excessive turbine speeds vs. airflow. At this point you are beyond the point of diminishing returns and this is a very poor place to be for making power, or keeping things as easy as possible on the hardware (engine, turbos, etc).

Turbine maps are not as easy to understand (nor readily available) as compressor maps- but that is essentially the point of them.

Rob

[Fundguy1]

Link for precision raaceworks inlets for comparison please?

[musc]

Originally Posted by Fundguy1

Link for precision raaceworks inlets for comparison please?

Not sure it is allowed but just add a dot com to the end of precisionraceworks and you will find what you seek.

[Shadow007]

Originally Posted by musc

I'd say neither. If TFTs aren't in your in budget check out precisionraceworks inlets. Only a little more than the ones you mentioned and still passenger side inlets.

Nah man for $1499 for something that ideally does the samething as the others and the only real difference, that I could see, is the material being used I couldn't justify that price. At the end of the day, everyone knows that the stock inlets are very restrictive and being that there are multiple options to choose from now, either route that you take will provide better gains, regardless.