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-   -   E46 Topmount Tubular Turbo Manifold (http://forum.e46fanatics.com/showthread.php?t=925789)

DOC_Race 06-04-2012 07:00 PM

E46 Topmount Tubular Turbo Manifold
 
Hey everyone! Just picked up an E46 M3 SMG and i'm really excited about this car and have completely enjoyed it the last few weeks.

DOC-M3-1

I am working on building a topmount tubular manifold setup for this car. I am coming from a 2003 350Z which was great; I built a "mid-mount" single turbo system for it to gain some extra power but became limited. By building a topmount setup, I feel the manifold design will be much more capable of power potential: i.e. better merge collector, wastegate outlet for boost control, no scavenge pump system (which was needed with my 350Z mid-mount setup)

I started by creating some space for the turbo with a new coolant expansion tank.

DOC-M3-2 (2)

DOC-M3-3

That definitely free'd up some space for the turbocharger to exist in the bay; should be picking the turbo up the next few days to continue forward with necessary deletions and modifications so I can begin building the tubular manifold. Looking at a 62mm Precision Turbo right now, i'll be sure to update as soon as it's in-hand!

Commanderwiggin 06-04-2012 07:09 PM

Nice!

jtrejo 06-04-2012 07:18 PM

in for the build!

djtrini 06-04-2012 07:20 PM

Sweet!!! In for the build as well!! :evil:

MaverickM3 06-04-2012 07:42 PM

Nice project OP. :thumbsup:

Can you just start with 76mm turbo. That way we know they will all fit. LoL. :D

SlideFox 06-04-2012 07:56 PM

Nice!!

Specs on the Z?

Snik 06-04-2012 07:57 PM

oh sh1t

dan avoN7 06-04-2012 08:06 PM

Awesome! Subscribed for future updates :)

Dreikraft 06-05-2012 02:02 AM

bout time someone did this!

any plans on reproducing this if its a success?

zcchen 06-05-2012 03:00 AM

Keeping AC? or no?

Cipri 06-05-2012 03:36 AM

You need to relocate alot more things to do a top mount!
:read: http://forum.e46fanatics.com/showthr...640&highlight=

Good luck with the build!

02black330ci 06-05-2012 08:53 AM

This is a GREAT idea! By any chance are you guys the ones that built HPF's drag car exhaust manifold http://docrace.com/ ? Also, just for starters those of us who would be interested in this set up, have our aftermarket ECUs right where you relocated the expansion tank to, so please take that into consideration for this build if it's going to cater to the masses.

DOC_Race 06-05-2012 12:31 PM

Quote:

Originally Posted by MaverickM3 (Post 14456925)
Nice project OP. :thumbsup:

Can you just start with 76mm turbo. That way we know they will all fit. LoL. :D

I will definitely keep 76mm in-mind when building! I just started mapping things out and am planning to keep my engine factory internals (for the time being) so am looking at smaller frames for the initial build and response.

Quote:

Originally Posted by SlideFox (Post 14456961)
Nice!!

Specs on the Z?

My Z setup was a 67mm "mid-mount" factory VQ35DE engine that I realized was very limited in stock form when looking towards the 500whp range less the solid 6 spd trans.

Quote:

Originally Posted by Dreikraft (Post 14457997)
bout time someone did this!

any plans on reproducing this if its a success?

Reproduction is definitely a possibility, this is the early stages of design so I will be sure to keep you guys in the loop!

Quote:

Originally Posted by zcchen (Post 14458066)
Keeping AC? or no?

Definitely going to keep A/C on this car! Some custom lines and/or reworking will most likely be necessary to do so but I will make sure this is executed.

Quote:

Originally Posted by Cipri (Post 14458099)
You need to relocate alot more things to do a top mount!
:read: http://forum.e46fanatics.com/showthr...640&highlight=

Good luck with the build!

This is "step 1" of my plans, so i'm more then aware there will be things needing adjustments, modifications, relocations. I will definitely take a look at your link for some possible motivation! I've spent some time going over the initial "manifold design" and feel very confident topmount is the way I want to go on this.

Quote:

Originally Posted by 02black330ci (Post 14458477)
This is a GREAT idea! By any chance are you guys the ones that built HPF's drag car exhaust manifold http://docrace.com/ ? Also, just for starters those of us who would be interested in this set up, have our aftermarket ECUs right where you relocated the expansion tank to, so please take that into consideration for this build if it's going to cater to the masses.

Yes, the HPF drag manifold was a custom tubular manifold I built. I will definitely keep ECU location in-mind; among the ABS unit which I found is positioned differently for other generations aside from mine. The expansion relocation has other possibilities, I used this area because it was so open!

MaverickM3 06-05-2012 12:40 PM

Quote:

Originally Posted by DOC_Race (Post 14459149)
I will definitely keep 76mm in-mind when building! I just started mapping things out and am planning to keep my engine factory internals (for the time being) so am looking at smaller frames for the initial build and response.

Thank you Sir. :thumbsup:

SlideFox 06-05-2012 09:00 PM

Quote:

Originally Posted by DOC_Race (Post 14459149)
My Z setup was a 67mm "mid-mount" factory VQ35DE engine that I realized was very limited in stock form when looking towards the 500whp range less the solid 6 spd trans.

Sweeet!!! I come from the VQ community. I'm a regular on My350Z.

02black330ci 06-05-2012 09:49 PM

Quote:

Originally Posted by DOC_Race (Post 14459149)
Yes, the HPF drag manifold was a custom tubular manifold I built. I will definitely keep ECU location in-mind; among the ABS unit which I found is positioned differently for other generations aside from mine. The expansion relocation has other possibilities, I used this area because it was so open!

Perfect, just what I wanted to hear!

MarcusLSB 06-05-2012 10:26 PM

Subscribed!

6spd_legend 06-05-2012 10:44 PM

Wow- this is awesome. I've been waiting for someone to step up to the plate and do a top mount build. I can see this + ProEFI being a great options for those wanting to go turbo w/ the e46 m3. Subscribed.

MaverickM3 06-05-2012 11:00 PM

I think a top mount turbo would look bad @ss under there.

DOC_Race 06-06-2012 01:27 PM

2 Attachment(s)
Found a nice spot for the turbo yesterday. I'm starting to see why people do bottom mount but I'm used to working with no room so this will be interesting...


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