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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > VRSF FMIC..



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      06-18-2012, 12:38 PM   #67
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      06-18-2012, 01:20 PM   #68
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Quote:
Originally Posted by nailer335 View Post
Tiago-

I'll be in on this group buy too. I don't use FB because it represents the degradation of humanity... But once the "official list" is posted please add me to it and let me know when you want the deposit.
Quote:
Originally Posted by zeenon53 View Post
It would be great if you guys ran some sort of a package deal for the FMIC, DP's and exhaust for guys like me! I'm currently just running a cobb, but getting itchy for some DP's and a FMIC.
In the same boat as these two.
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      06-18-2012, 01:21 PM   #69
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Lots of ppl gonna be FBO once you start selling this DP, FMIC + CBE package
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      06-18-2012, 01:24 PM   #70
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Exhaust is nice, but hasn't proven to be a performance mod as much as a sound mod. What I'd love is pricing on the Vishnu turbo, 550rwhp on pump gas (no meth) is crazy awesome...
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      06-18-2012, 01:41 PM   #71
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Fully aware that after the DPs, an exhaust isn't a significant "performance" mod -- But for the power hungry it's an additional 15 HP and something else that differentiates your car from the rest
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      06-18-2012, 01:49 PM   #72
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Quote:
Originally Posted by benzy89 View Post
Fully aware that after the DPs, an exhaust isn't a significant "performance" mod -- But for the power hungry it's an additional 15 HP and something else that differentiates your car from the rest
Haven't seen any dyno's that show 15rwhp. For that matter, DP and IC only add ~40hp together.

Stock - 270+
Tune/Intake - 360
FBO - 400
Tune/Intake/Meth - 400
FBO + Meth - 430
FBO + Meth + RB - 500
Shiv Single - 550-654 (pump gas up to big turbo + meth)

Never seen CBE added to that mix.
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      06-18-2012, 01:49 PM   #73
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^^I would be surprised if we picked up 15whp from just a catback. Like others said the real gains are in the DP's.
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      06-18-2012, 02:14 PM   #74
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Quote:
Originally Posted by bootay View Post
Haven't seen any dyno's that show 15rwhp. For that matter, DP and IC only add ~40hp together.

Stock - 270+
Tune/Intake - 360
FBO - 400
Tune/Intake/Meth - 400
FBO + Meth - 430
FBO + Meth + RB - 500
Shiv Single - 550-654 (pump gas up to big turbo + meth)

Never seen CBE added to that mix.
I'm gonna use the COBB standards here:
  • (Stage 1) A tune bumped up to ~12 psi + intake, you'll see around 330-340 WHP
  • (Stage 2) Tune, Intake, DPs + FMIC, you'll see close to 380 WHP (This is FBO)
  • Tune, Intake, DPs, FMIC + Meth, you're around 450 WHP
  • Tune, Intake, DPs, FMIC + RBs, same 450 WHP area
  • Tunes, Intake, DPs, FMIC, Meth + RBs, touching 500 WHP

1st off, I have NO idea where you're getting a 100 HP delta on just a tune + intake upgrade. To get 350+ HP, you're looking at a minimum of 16 psi which will require catless DPs or you'll kill the turbos. DPs commonly add between 20-30 WHP, but you rarely see their gains isolated b/c anyone adding DPs is going from low-tuned boost (12-14) to high (16-19 psi). FMICs typically add between 10-15 HP, but are seen more as supporting mods since they're not designed for performance gains (they're designed to support the engine to allow a higher performance setting).

2nd, 335 exhaust is already very free flowing. The 135 requires an CBE upgrade after Stage 1 b/c of the restrictive nature of its exhaust. If you look at any CBE manufacturers (for the N54 or N55 motors), 15 WHP/20 WTQ are their normal gains which really aren't that surprising. From a CBE, you're getting gains comparable to an intake upgrade.

3rd, FBIS' single-turbo has an aftermarket CBE to ensure maximum performance & eliminate any restrictions in the OEM exhaust -- http://www.e90post.com/forums/showth...=666719&page=9
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      06-18-2012, 02:20 PM   #75
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I'm going from what we've seen publish...tune+intake isn't 100hp, it's more like 70-80. Stock is often around 270, 350 is pretty common for tune/intake. But the question is does a CBE produce more HP, and I haven't see the dyno that says it's anything significant.
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      06-18-2012, 02:38 PM   #76
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Quote:
Originally Posted by bootay View Post
I'm going from what we've seen publish...tune+intake isn't 100hp, it's more like 70-80. Stock is often around 270, 350 is pretty common for tune/intake. But the question is does a CBE produce more HP, and I haven't see the dyno that says it's anything significant.
Once again, I think you're citing inaccurate data that says on just a tune + intake you'd be getting that much power. And I think it's fairly simple to realize that a CBE would be beneficial power wise, by eliminating any back pressure/restrictions created by the OEM exhaust. 15 WHP isn't anything special (especially since the same gains can be seen with going from 93 to 100 octane), but it's an additional 15 WHP that will make sure the car is getting max performance.

Here is a Dyno Sheet from GIACs Stage 1 Flash -- Designed for completely stock cars, but performance will be maxed for this flash w/ an upgrade intake + CBE

On Pump Gas (91), there were gains of 53 HP/70 TQ. The stock tune dyno'd 265/270, giving you ~320 WHP/340 WTQ.

Here's the Dyno for the Stage 2 Flash -- Required upgrades are Intake, DPs + FMIC, max performance with a CBE

On 91 octane, gains were 125/146, putting the power around 370/385.

AND Finally the Stage 2 Race Flash -- Requires DPs, FMIC, Intake, CBE + Meth

With 91 octane, gains are 125/146, putting the power at 390 WHP/420 WTQ. With 93 octane/E85 blend, you'd prob just be touching the 400 WHP mark.

So once again, I'm not sure where you got those estimations, but they are very, very hopeful numbers. Aftermarket turbos will give you another 75 WHP/100 WTQ at best, having you're WHP in the mid/high 400s (WTQ prob just over 500).

In regards to the single-turbo, I think it's still too early to start citing those power numbers when we have no idea how the stock internals are going to hold up. While an MT can be upgraded fairly easily (race spec clutch), an AT + internals (pistons, cams) might be getting pushed beyond it's build quality and DD reliabilty will become the "Achilles' Heel" of this build.

Last edited by benzy89; 06-19-2012 at 08:53 AM. Reason: Dyno Sheets
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      06-18-2012, 03:20 PM   #77
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Originally Posted by Tiago@VRSF View Post
While we don't have an official list, I suggest subscribing to our FB page for updates as to when we'll start the intro promo

https://www.facebook.com/VRSF.Tiago

I have about 5 sets arriving that are already accounted for which should allow for a few nice independent & unbiased reviews.
is this for the 5" or 7" version?
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      06-18-2012, 07:16 PM   #78
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The ones that are arriving are the 7". 5" kits aren't going to be ready for another couple months or so.
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      06-18-2012, 07:27 PM   #79
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Quote:
Originally Posted by Tiago@VRSF
The ones that are arriving are the 7". 5" kits aren't going to be ready for another couple months or so.
How soon can I buy one of your FMICs? I'll take either size. Its a time sensitive matter... 113F today means I cant wait a few months
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      06-18-2012, 07:51 PM   #80
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Quote:
Originally Posted by nailer335 View Post
How soon can I buy one of your FMICs? I'll take either size. Its a time sensitive matter... 113F today means I cant wait a few months
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      06-18-2012, 08:30 PM   #81
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We'll start the GB process in a couple weeks. The offical ETA is about 6 weeks but like anything, there can be unforeseen delays which is why I'd rather wait till I have a better idea of when they'll be ready to ship
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      06-18-2012, 09:23 PM   #82
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Quote:
Originally Posted by Tiago@VRSF
We'll start the GB process in a couple weeks. The offical ETA is about 6 weeks but like anything, there can be unforeseen delays which is why I'd rather wait till I have a better idea of when they'll be ready to ship
6wks for the GB on 7" I'm assuming? Are you coupling that with your DP's; I'd be very interested if so.

Also, how will you be dealing with your Canadian customers who don't like shipping/border/money exchange fees and the such ahahaha
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      06-18-2012, 09:27 PM   #83
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I'll also take a FMIC whenever that group buys come out. First i gotta get my VRSF xi downpipes i spoke to you about though. Let me know when those are ready
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      06-19-2012, 10:41 AM   #84
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I'll more than likely jump on the GB too. Its a necessity at track days.
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      06-19-2012, 11:21 AM   #85
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Quote:
Originally Posted by benzy89 View Post
And I think it's fairly simple to realize that a CBE would be beneficial power wise, by eliminating any back pressure/restrictions created by the OEM exhaust. 15 WHP isn't anything special (especially since the same gains can be seen with going from 93 to 100 octane), but it's an additional 15 WHP that will make sure the car is getting max performance.
Show a dyno of pre-cbe, post-cbe with 15whp gain. That's the whole point of this meaningless discussion.

Back on topic, 7" FMIC coming first is great. Will the 5" IC be cheaper or just smaller/no trimming?
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      06-19-2012, 11:24 AM   #86
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Slightly cheaper and the only benefit is it doesn't require trimming.
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      06-19-2012, 11:32 AM   #87
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Quote:
Originally Posted by bootay View Post
Show a dyno of pre-cbe, post-cbe with 15whp gain. That's the whole point of this meaningless discussion.

Back on topic, 7" FMIC coming first is great. Will the 5" IC be cheaper or just smaller/no trimming?
This meaningless discussion was a result of your made up performance numbers. So now that I've corrected you on that, here's a Before & After Dyno of a SuperSprint CBE (Stock Tuned N54)


Gains are 12 WHP/11 WTQ with Stock Performance Settings. Combined with an Aftermarket Tune & Catless DPs, 15 WHP/15 WTQ aren't out of reach.

Here's the thread that reviews the SuperSprint CBE: http://www.e90post.com/forums/showthread.php?t=110437

While the HP/TQ gains are there with a CBE, I would NEVER spend $1k+ on a CBE (or about $3.5k on a Akrapovic/Supersprint system) for just ~15 ponies

Last edited by benzy89; 06-19-2012 at 11:44 AM.
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      06-19-2012, 11:44 AM   #88
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Quote:
Originally Posted by benzy89 View Post
This meaningless discussion was a result of your made up performance numbers. So now that I've corrected you on that, here's a Before & After Dyno of a SuperSprint CBE (Stock Tuned N54)


Gains are 12 WHP/11 WTQ with Stock Performance Settings. Combined with an Aftermarket Tune & Catless DPs, 15 WHP/15 WTQ aren't out of reach.

Here's the thread that reviews the SuperSprint CBE: http://www.e90post.com/forums/showthread.php?t=110437
Pretty awesome, glad to see thousands of dollars can make 10-15hp. VRSF CBE for a decent price might be interesting for some.
On the other stuff, I'll leave it alone since it wasn't really the topic, but there are plenty of 400whp dynos for FBO, 500whp for RBs, and obviously the single turbos do what they do regardless if you think the AT can handle it.
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