BNR Turbo, Bypass the Bypass, and Intake mod

[Anthony]

Quick question about these three modifications.

If I were to install the BNR turbo, would it be in my best interest to also do the bypass mod and intake manifold mod?

I know that the turbo will result in more power at higher RPMs, however, would it make a noticeable difference with both of these mods done? Would the bypass and intake manifold mods be worth it at that point? My gut tells me that the difference (after the installation of the turbo) would be hardly noticeable with both of these DIY mods done.

Thanks

 

[JesusTheAgnostic]

Probably, why don't you just do it? They're both pretty much free and we all agree that we love it

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[Blue Moon Sonic]

Actually, the intake manifold porting mod is actually very noticeable once your tuned. The car doesn't feel like it runs out of breath once you hit the 5000 RPM range. The bypass mod is also fairly noticeable since it actually allows the turbo to spool faster without the nannies kicking in to ruin your day by leaking out the boost. You'll also gain 1mpg from the bypass mod which still stumps me to this day.

Listen to MPfab. He knows his **** and everything is explained in detail. If the mods didn't work with noticeable, but possitive effects. Then people wouldn't be constantly be doing them. Just my 2 cents

 

[JesusTheAgnostic]

I think he's asking because the BNR description of the turbo is that it works around the drop off at 5k RPM.

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[Blue Moon Sonic]

Porting the intake manifold is a supporting mod. You still will get more airflow at the top end by doing the mod and will still be beneficial even with a larger turbo. It's just like doing the BNR LS7 coil pack kit. It's a supporting mod that is required to push more power even though it doesn't directly add power. So, even if the BNR turbo claims to work around the 5k RPM drop off, it'll still be beneficial in the long run when you want to turn up the power because you're allowing more airflow.

If we ever get performance cams and valves for these engines, we'll actually see a good bump in power from the ported manifolds because the restriction in the head is gone. The ported intake manifold mod is going to be one of those you must do this when performance cams and valves finally become available. Otherwise, If you have a cammed engine with a ported and polished head and a restricted intake manifold, you'll actually be loosing out on potential power.

 

[Big Turbo Sonic]

To Blue Moons comment, If you look at it that way any mod is a supporting mod. There are noticeable gains to porting the intake manifold so I would not say its a "supporting mod". You are directly adding power regardless of tuning or not.

 

[Tesseract_Indeed]

Okay, but I have seen plenty of people on the Porting the TIntake Manifold thread say that it won't run at all or it runs like s*** with a stock tune, while some others say that it runs fine on a stock tune. I am not planning to or financially in a position to get a tune right now, and I MUST have my Sonic to drive, as it is my only car. So I may scared to do the intake manifold porting considering it could basically render the car useless until tuned, according the a LOT of people who experienced and reported this.

 

[JesusTheAgnostic]

If you don't have the money for a tune then leave the car stock until you do. Although I think I flashed to stock with all my mods for like a week and it drove just fine. It did tell me my cats were malfunctioning, but I don't have any so oops.

 

[Tesseract_Indeed]

Yeah, I just can't run the risk so I will wait until a tune.
To answer the thread's question, yes, it absolutely would be. The bottom line is, more air equals more fuel to burn equals more hp and tq. And while you're at it, because the tune, turbo, bypass and intake port will all make the top end of rpm's useful, I would change to BNR's valve springs if you plan to run the piss out of it regularly.