RHD Single Turbo stock Manifolds

[Brule]

Making a single setup on stock manifolds.

Should go allright.

Made 465.9kw on the last log manifold.
This in theory should be able to make the same.

Photos making the manifold.

Video of around 6 hours work in a 2 minutes

 

[Ash3352002]

My turbos have just gone on my e92, i want to do a single turbo conversion now, i am more than capable of carryong out the work but seen a few using the stock manifolds and wanted to know are they any good im not after record breaking numbers but a cost effective way of st my car, im in the uk so rhd single turbo manifold is £2500

 

[Ash3352002]

 

[Brule]

A car in Australia did 10.1 @ 139mph on stock manifolds.
Should make 500kw if you wanted to.

 

[Brule]

A log style manifold is better on a RHD so you can fit the downpipe easier. The stock rear manifold puts the pipe in the way unless you put it next to the wheel arch side and put v bands all over it.
The one above will only have a 3 inch downpipe.

 

[Brule]

Next will be an equal length manifold.

 

[martymil]

If you want more of a equal length runner and more room, cut the rear manifold of the flange and flip it.

It will give you more room for a bigger down pipe and simplify the design and make it cheaper to replicate whilst giving you more room for a much simpler and bigger down pipe which will make you more power.

 

[Brule]

O2 sensor bungs in. No heat sinks here yet.
I might even show how I install mine.

 

[Brule]

Been making this on the wknds and after work.
Its all made just have to remove everything and re fit it with gaskets ect.

All up around 6-7 days work to make everything.

Looking to start it on the wknd and go to dyno see what it makes on the same turbo boost and timing as last time. 28psi 9 degrees advance 465kw was last time.

Photos

 

[wheela]

Holy smokes, straight out the hood semi-truck style? You don't mess around!!

 

[N54gasm]

Looks good! Stock turbofolds flow decent.

 

[Brule]

All back together ready to start.

 

[Brule]

 

[Brule]

Its going!

Started first go.
Hasnt been started since October last year. Battery was ok.

Few revs

Dyno in 2 weeks

 

[Brule]

Ready for Dyno this Friday.
It has same tune as last year that made 465kw.

See if it makes more or less power then last time then straight to Friday night roll racing for some fun.

Did some prep today.
This is what it sounds like.

 

[Brule]

Roll Racing video.

Ran it at 30 pound boost.

Raced a 10.57 @132mph volkswagon and got the win even after a bit of wheel spin.

 

[Brule]

Single Turbo dyno results 473kw 38psi boost 9 degrees adv.
Precision 6466 1.0AR T4 divided. T4 divided both manifolds.
Plazmaman Intercooler
Plazmaman Intake manifold
750cc port injection
Jb4

Log manifold Full 4 inch exhaust, turbo guard
17psi 9 degrees 341kw
28psi 9 degrees 465kw
30 degree ambient last September

Stock manifold, 3.5inch exhaust out bonnet and BMS Shorty Air filter
17psi 9 degrees 336kw
28psi 9 degrees 473kw
28 degrees ambient today

What I learned from this testing:

Stock or log manifolds are not a restriction at these power levels.

Bms air filter is not a restriction at 470+kw. The turbo guard made the same power and wgdc was the same.

Duty Cycle on boost was that close neither had enough backpressure to change the power level.
For example both fluctuate 27-32 29-34 in the higher rpm. Lower duty was on 4 inch full exhaust.

Exhaust out bonnet needs to go back to a normal exhaust.

Im from Australia so our dynos are a bit lower then usa for comparision. This setup did a 10.7 1/4 on 26psi.