[ENintyTwo]

Had a few goals in mind when starting this process. Seeing how E85 is not an option for me, I knew the car was going to go with meth injection. But let start with 93 Pump,

Goal 500+ WHP On 93 Pump
Tuner DocVu

Car Modifications:
Speedtech Single Turbo Kit
Precision 6266 Gen2 BB 1.0 AR
With Open Dump
Tial Gate
ATM Race 3.5” Exhaust
BMP Stage 3 LPFPs
ARM 1k FMIC
ARM CP W/ Tial BOV
VadarSolutions BOV Adapter
XClutch Twin Disc
RTD Shifter
MFactory LSD
Fresh HPFP & Index 12 Injectors

18-PSI & 93 Pump Gas! Next up is the prometh kit and 600whp stay tuned guys.

[iqraceworks]

Yeah, the N54 motors really love octane. My RB TWO's are making right at 500hp on 93......but with an E40 mix I'm up around 550-575, and that's limited because my HPFP just cant' flow any more fuel. If you had access to e85, you would easily be up in the 600hp area.

Hopefully that meth kit will help you out, but make sure it's got some safeties wired in. The last thing you want if you are using meth for fueling is for a nozzle to get clogged, or a pump to crap out, or a solenoids to stick shut.....Boom goes your motor if the meth stops flowing.

On a side note....how laggy is that single turbo compared to twins?

[qxangelxp]

Thanks for the dyno!

I'm on stockies. Really trying to decide between RB GFs or a Speedtech 6266.

[_N54]

Originally Posted by qxangelxp

Thanks for the dyno!

I'm on stockies. Really trying to decide between RB GFs or a Speedtech 6266.

You can't go wrong with either one. I have the RB GF turbos on my 335is.

[Rule1977]

Originally Posted by iqraceworks

Yeah, the N54 motors really love octane. My RB TWO's are making right at 500hp on 93......but with an E40 mix I'm up around 550-575, and that's limited because my HPFP just cant' flow any more fuel. If you had access to e85, you would easily be up in the 600hp area.

Hopefully that meth kit will help you out, but make sure it's got some safeties wired in. The last thing you want if you are using meth for fueling is for a nozzle to get clogged, or a pump to crap out, or a solenoids to stick shut.....Boom goes your motor if the meth stops flowing.

On a side note....how laggy is that single turbo compared to twins?

This is good to know. I'm picking up my RB Twos Plus from Rob in January. I'm looking for 575-600whp and should get that with my setup.

[iqraceworks]

Originally Posted by Rule1977

This is good to know. I'm picking up my RB Twos Plus from Rob in January. I'm looking for 575-600whp and should get that with my setup.

Yep.....Rob said the Two plus are worth 50hp over the TWO's. On an ethanol fuel mix...575-600 should be easy 👍

[ab987]

Originally Posted by iqraceworks

Yeah, the N54 motors really love octane. My RB TWO's are making right at 500hp on 93......but with an E40 mix I'm up around 550-575, and that's limited because my HPFP just cant' flow any more fuel. If you had access to e85, you would easily be up in the 600hp area.

Hopefully that meth kit will help you out, but make sure it's got some safeties wired in. The last thing you want if you are using meth for fueling is for a nozzle to get clogged, or a pump to crap out, or a solenoids to stick shut.....Boom goes your motor if the meth stops flowing.

On a side note....how laggy is that single turbo compared to twins?

Is this to the crank or wheels? Also is this a ballpark or a dyno number? Weirdly enough I sent Rob an email last night about Twos/Plus with goals of 475-500whp on 93 and 550-575 on E40-E50. If it's to the wheels you just made up my mind. Gonna be throwing them in over the summer

[Rule1977]

Originally Posted by ab987

Is this to the crank or wheels? Also is this a ballpark or a dyno number? Weirdly enough I sent Rob an email last night about Twos/Plus with goals of 475-500whp on 93 and 550-575 on E40-E50. If it's to the wheels you just made up my mind. Gonna be throwing them in over the summer

It's whp

[Saif2018]

Originally Posted by ab987

Is this to the crank or wheels? Also is this a ballpark or a dyno number? Weirdly enough I sent Rob an email last night about Twos/Plus with goals of 475-500whp on 93 and 550-575 on E40-E50. If it's to the wheels you just made up my mind. Gonna be throwing them in over the summer

The turbos can actually make even more but Rob recommends those power figures for Turbo longevity.

[Sgop335]

Hp / torque (looks like 4th MT) seems high for 93 and 18 psi...

[ab987]

Originally Posted by Saif2018

The turbos can actually make even more but Rob recommends those power figures for Turbo longevity.

Sure, is 500whp on 93/575whp on E50 something I can expect the turbos to comfortably do at redline for say, autobahn lengths of time? I don't want to be overspooling these turbos at 6800rpm at high speeds on track or on the street. (btw great numbers for 93 OP, that's really proper for 18psi)

[Saif2018]

Originally Posted by ab987

Sure, is 500whp on 93/575whp on E50 something I can expect the turbos to comfortably do at redline for say, autobahn lengths of time? I don't want to be overspooling these turbos at 6800rpm at high speeds on track or on the street. (btw great numbers for 93 OP, that's really proper for 18psi)

Best if you email Rob directly, about Power figures, he should be able to recommend the ideal turbo for your power level. As far as I know RB 1's and 2's can sustain power right up to near redline.

rob.rbturbo@gmail.com

Yeah 18psi on a Stock turbo is not comparable to 18psi on RB 1/2 or Game Finishers.

[ab987]

Originally Posted by Saif2018

Best if you email Rob directly, about Power figures, he should be able to recommend the ideal turbo for your power level. As far as I know RB 1's and 2's can sustain power right up to near redline.

rob.rbturbo@gmail.com

Yeah 18psi on a Stock turbo is not comparable to 18psi on RB 1/2 or Game Finishers.

Cool, I talked to him and I think I'm gonna go with the RB Twos. Seem like a great balance, he told me 450-475whp will be easily doable on 93 and 525-550 will be the same on ethanol. Those are good enough numbers for me if they will do it reliably (which I trust they will)

[iqraceworks]

Originally Posted by ab987

Cool, I talked to him and I think I'm gonna go with the RB Twos. Seem like a great balance, he told me 450-475whp will be easily doable on 93 and 525-550 will be the same on ethanol. Those are good enough numbers for me if they will do it reliably (which I trust they will)

I'm running RB TWO's...they are awesome!! On 93 they will make 500hp at 25psi boost, and around 550-575 on an E40 mix.

They pull up past 7,000rpms.....and don't fall on their face under 6,000rpms like the stock turbos. The response is instant....no lag. The will max out the stock fuel system.....if I went with a PI setup, I would probably be in the 600hp range on a straight e85 mix....

But for a daily driver....a 500+HP 335i is great!

[ab987]

Originally Posted by iqraceworks

I'm running RB TWO's...they are awesome!! On 93 they will make 500hp at 25psi boost, and around 550-575 on an E40 mix.

They pull up past 7,000rpms.....and don't fall on their face under 6,000rpms like the stock turbos. The response is instant....no lag. The will max out the stock fuel system.....if I went with a PI setup, I would probably be in the 600hp range on a straight e85 mix....

But for a daily driver....a 500+HP 335i is great!

Not too bad. He told me it's pretty safe around 450-475whp on 93 and 525-550 on E40. Higher than that can crack ringlands. I would definitely consider PI for full E85 or meth if that got me to 575 or 600. The top end torque is really what I'm after, that and longevity. I want it to feel as NA as an N54 can.

[iqraceworks]

Originally Posted by ab987

Not too bad. He told me it's pretty safe around 450-475whp on 93 and 525-550 on E40. Higher than that can crack ringlands. I would definitely consider PI for full E85 or meth if that got me to 575 or 600. The top end torque is really what I'm after, that and longevity. I want it to feel as NA as an N54 can.

I've never heard of people cracking piston ringlands from making over 550hp. There are guys making 700+ on the stock bottom end with no issues. I think the tune/tuner is more important than anything else.......

[Saif2018]

Originally Posted by iqraceworks

I'm running RB TWO's...they are awesome!! On 93 they will make 500hp at 25psi boost, and around 550-575 on an E40 mix.

They pull up past 7,000rpms.....and don't fall on their face under 6,000rpms like the stock turbos. The response is instant....no lag. The will max out the stock fuel system.....if I went with a PI setup, I would probably be in the 600hp range on a straight e85 mix....

But for a daily driver....a 500+HP 335i is great!

In two minds about getting OEM Billets or RB 1's, I don't want to mess around with the fuel system. Will the RB 1's max out the fuel system as well, say if they are run at 20psi on 93oct fuel ?

[ab987]

Originally Posted by iqraceworks

I've never heard of people cracking piston ringlands from making over 550hp. There are guys making 700+ on the stock bottom end with no issues. I think the tune/tuner is more important than anything else.......

The power isn't what's cracking the ringlands, it's the boost required to reach that power with such a restrictive hot side (and therefore high exhaust backpressure). It might take 28psi to get 575whp on these, and that same boost pressure will land you low 700s on a 6466 or gtx3584. If you want 600whp, you might be in the low-mid 30s with these turbos, which cause immense cylinder pressures. Twins are not kind to our motors.

Rob was telling me of a customer running twos that is on his 5th motor because he keeps cracking pistons at around 600whp on Twos.

[ab987]

Originally Posted by Saif2018

In two minds about getting OEM Billets or RB 1's, I don't want to mess around with the fuel system. Will the RB 1's max out the fuel system as well, say if they are run at 20psi on 93oct fuel ?

With stock low pressure system, you can absolutely max it out with ones. If you have a healthy pump you should be able to do it, but it would be worth upgrading for peace of mind because you might be in the 50s in pressure.

[Saif2018]

Originally Posted by ab987

With stock low pressure system, you can absolutely max it out with ones. If you have a healthy pump you should be able to do it, but it would be worth upgrading for peace of mind because you might be in the 50s in pressure.

Thanks mate, I was thinking LPFP upgrade would be pretty much mandatory.

[Soden82]

Thanks for sharing OP. I plan to do a bottom (or top?) mount 6266 or 6466. Get her feeling good on pump and then dive into E mixes and port injection. Good to know that the car will hit 500-550 on pump depending on the turbo.