03-14-2018, 01:03 PM | #1 |
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300+ Rwhp Club
I am opening this thread in hopes of getting N20 engine guys who have hit the 300+ RWHP mark to help out the community. I myself am looking to get around the 350 RWHP mark. I am looking for a proven and reliable set up and tune to meet this goal. Rather than throw money at various mods in an attempt to make it there I am hoping we can all communicate what got us there.
What is your current RWHP? What mods do you have? What tune do you have? |
03-14-2018, 01:13 PM | #2 | |
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Currently, I'm around the 270whp mark. My new turbo is going in today and as soon as the new tune is completed (I'll say two weeks), I'm going to be pushing ~300whp/~340wtq. All the mods I have are in my signature ATM. Tune I have right now is through PTF, but HC Performance will be doing the new one. I read in the other thread that you were looking for reliable tune without having to build the engine and what I listed above is the safe zone for that. Stubok is running a similar tune in that zone. The issue with our platform is rods are NOT forged. Because of this, under heat and stress, they tend to break. Studying historical failures of this sort, it's TYPICALLY limited to the track where there is constant, high heat and high torque (400 range). Our platform reaches peak torque really early and that sudden jolt of power can cause them to break. So, to hit 350whp RELIABLY without engine work is slim. Stubok recently installed an oil cooler (To augment the current water/oil heat exchanger) and I, too, would like to experiment with that to bring down our engine temps. Our hope in this is to bring down the engine temps (Which means rod temps) and achieve two things: Push more power through the engine AND push it through safely and reliably. In the meantime, if you want to safely get above 350whp and not worry about the rods breaking, you will need to get forged ones. CP Carillo offers a kit for this. While you're in there though, you might as well start replacing other parts for the sake of not having to do it later down the road.
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03-14-2018, 04:47 PM | #3 |
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I'm not sure how much HP I'm pushing but I have a 2014 428i with a VRSF Downpipe, ER Chargepipe, K&N Drop In, and JB4 Map 2 (EWG) also have a 435i muffler retrofit, not sure if that adds anything by reducing back pressure.
Anybody know what kind of numbers I might have?
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03-14-2018, 04:51 PM | #4 | |
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2013 F30 328i: MHI Big Turbo, GFB DV+, Mishimoto CAI, ER TIC/CP/Catless DP, AWE Touring Quad Exhaust w/ Resonated Midpipe, NGK LI Plugs, BM3 with PTF Stage 2 91 AGG Tune, Fuel-it Stage 2 LPFP, Solowerks S1 Coilovers, and DEPO/M-Sport Retrofit |
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03-14-2018, 04:51 PM | #5 | ||
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03-14-2018, 05:00 PM | #6 |
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240-250. That's conservative. Very well could be higher ofc.
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03-14-2018, 05:12 PM | #7 | |
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I'm probably not the best guy to ask (mods in signature) but I feel like 350whp would be hard to achieve reliably without getting forged internals, as BunkerJ said. at that point you're looking at almost 400 crank, which is quite a lot to expect from a car that was already boost heavy from factory making 240 crank. just my 2 cents.
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03-14-2018, 05:21 PM | #8 | |
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2013 F30 328i: MHI Big Turbo, GFB DV+, Mishimoto CAI, ER TIC/CP/Catless DP, AWE Touring Quad Exhaust w/ Resonated Midpipe, NGK LI Plugs, BM3 with PTF Stage 2 91 AGG Tune, Fuel-it Stage 2 LPFP, Solowerks S1 Coilovers, and DEPO/M-Sport Retrofit |
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03-14-2018, 05:35 PM | #9 | ||
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My next mod will probably be an intercooler, but correct me if I'm wrong that'll only help keeps temperatures down and hold boost for longer.
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03-14-2018, 05:49 PM | #10 |
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correct and correct about the intercooler. but, it also lowers IATs, and colder, denser air means more power. so to get to 300 wheel, I would recommend E85 first and foremost (which will require an upgraded fuel pump), our engines seem to take quite well to it. also an intercooler like you said, proper flash tune, and perhaps meth if you want to go that route. obviously, you could also go upgraded turbo, but that's quite a process not many are willing to get into. all the above will get you much closer to the 300whp mark.
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03-14-2018, 06:01 PM | #11 | |
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Also, I heard N26 EWG is not recommended running E85. What is "meth"? Maybe if i stack my JB4 with a flash tune I can get to 300whp?
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03-14-2018, 06:03 PM | #12 | |
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I haven't heard of anything about the EWG n26 not being compatible with E85, thats interesting, I'll have to look into it. meth is short for water-methanol injection system. it is a system that injects water and methanol into the engine (I believe at the intake manifold) helping with cooling primarily, and thus making more power. it is very effective in lowering temps, and can help increase power. It requires a tank, nozzle and pump. I have heard that stacking JB4 over a flash tune (bootmod3) can be effective. it may not be enough to get you to 300 wheel, but it will help in the right direction. for your situation, if I'm judging it correctly, I would do an intercooler and a flash tune, stacking with JB4 is up to you. this will be price efficient, simple and should get you darn close to your goal ~330-340 crank, pretty close to 300 wheel. I just said a lot, if anything is wrong, anyone please correct me accordingly.
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Last edited by rjd_F30; 03-14-2018 at 06:23 PM.. |
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03-14-2018, 09:26 PM | #13 |
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To hit 300whp reliably and safely, it's going to require FBO (CAI, FMIC, CP/TIC, Exhaust, Catless CP) and either going the E85 route or turbo. I was initially going the E85 route, which is perfectly fine so long as you get the upgraded LPFP, but decided on the upgraded turbo since mine was close to dying.
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03-14-2018, 09:28 PM | #14 |
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Also, stacking JB4 and a flash is only good if you are doing meth.
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03-15-2018, 08:50 AM | #15 | |
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03-15-2018, 08:54 AM | #16 | |
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03-15-2018, 10:15 AM | #17 |
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you definitely need a tune that adjusts for E85 and a proper upgraded fuel pump, but the higher ignition point of ethanol reduces knock risk, which I would imagine most owners would be happy about. I guess it depends on the person. anything other than stock and you're risking worse reliability, but generally if done correctly, I don't think E85 is very harmful at all to our platform IMHO.
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03-15-2018, 10:57 AM | #18 | ||
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2013 F30 328i: MHI Big Turbo, GFB DV+, Mishimoto CAI, ER TIC/CP/Catless DP, AWE Touring Quad Exhaust w/ Resonated Midpipe, NGK LI Plugs, BM3 with PTF Stage 2 91 AGG Tune, Fuel-it Stage 2 LPFP, Solowerks S1 Coilovers, and DEPO/M-Sport Retrofit Last edited by BunkerJ; 03-15-2018 at 12:39 PM.. |
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03-15-2018, 12:15 PM | #19 | |
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03-15-2018, 12:40 PM | #20 |
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I'm running Fuel-It!'s stage 2 LPFP. That's the common choice.
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2013 F30 328i: MHI Big Turbo, GFB DV+, Mishimoto CAI, ER TIC/CP/Catless DP, AWE Touring Quad Exhaust w/ Resonated Midpipe, NGK LI Plugs, BM3 with PTF Stage 2 91 AGG Tune, Fuel-it Stage 2 LPFP, Solowerks S1 Coilovers, and DEPO/M-Sport Retrofit |
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03-16-2018, 02:42 AM | #21 |
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finally an informational thread
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03-16-2018, 06:01 AM | #22 |
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