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Showing results 1 to 25 of 100 Search: Posts Made By: 911Y4
Forum: N55 11-03-2017, 05:38 PM
Replies: 38
Views: 4,496
Posted By 911Y4
I use capristo unit to control the valve, it...

I use capristo unit to control the valve, it measures the backpressue, It automatically open when back pressure reaches 30mbar
Forum: N55 11-03-2017, 05:35 PM
Replies: 38
Views: 4,496
Posted By 911Y4
WAS it with Pureturbo stg2 pwg at maxed out psi?

WAS it with Pureturbo stg2 pwg at maxed out psi?
Forum: N55 11-03-2017, 05:30 PM
Replies: 38
Views: 4,496
Posted By 911Y4
Just for a little back pressure before wastegate...

Just for a little back pressure before wastegate is fully closed
Forum: N55 11-03-2017, 05:27 PM
Replies: 38
Views: 4,496
Posted By 911Y4
So exhaust speed here is less relevant? The...

So exhaust speed here is less relevant? The reason I pair 3 mid pipe to 2x 2.1 or 3.5 to 2x2.5 was trying to match the same exhaust speed(correct me if I am wrong)
Forum: N55 11-03-2017, 10:11 AM
Replies: 38
Views: 4,496
Posted By 911Y4
So you suggest option C? Custom make a 3.5 to 3.5...

So you suggest option C? Custom make a 3.5 to 3.5 ** and 3.5 straight mid pipe and 2 x 2.5 tail *****?

Any benefits to do option B? I thought this option will slow down the exhaust speed.
Forum: N55 11-02-2017, 09:04 PM
Replies: 38
Views: 4,496
Posted By 911Y4
do you know why major exhaust makers choose...

do you know why major exhaust makers choose 2x63mm ***** instead of 2x54mm?

which one is better:

3.5'' turbo outlet - 3'' down pipe - 3'' mid pipe - 2x54mm tail *****
or
3.5'' turbo outlet -...
Forum: N55 11-01-2017, 06:28 PM
Replies: 38
Views: 4,496
Posted By 911Y4
Here is the product. the mid pipe is 3'' diameter...

Here is the product. the mid pipe is 3'' diameter (76mm) and the "Y" sub ***** have 54mm diameter one with vacuum valve, may I ask if there is any design flaw? I found the left long sub pipe has much...
Forum: N55 10-30-2017, 09:36 PM
Replies: 38
Views: 4,496
Posted By 911Y4
Exclamation Right Exhaust Diameter to max out Pure stg2 N55 PWG turbo

Hi All,

I am looking to custom make an exhaust system for my F30 335xi N55 PWG. So far the car is running almost 530-550 WHP with 25psi flat boost on E35 mixture.

May I ask if I am running a...
Forum: N55 10-17-2017, 07:56 PM
Replies: 1
Views: 698
Posted By 911Y4
GPS data.

GPS data.
Forum: N55 10-17-2017, 07:55 PM
Replies: 1
Views: 698
Posted By 911Y4
Lightbulb F30 N55 335xi PWG 0-100kM/h in 3.27s, need advice please

Dear ALL,

Yesterday in Shanghai 20 degree C, my F30 335xi PWG just made 0-100km/h 3.27s (measured by two 10Ghz accuracy GPS) Log attached.

The car has light rim and light battery, could you...
Forum: General Tech Support, Tuning Advice, Logs, and Help Me Posts 09-26-2017, 11:05 PM
Replies: 38
Views: 4,428
Posted By 911Y4
Thank you Terry!

Thank you Terry!
Forum: General Tech Support, Tuning Advice, Logs, and Help Me Posts 09-26-2017, 07:20 PM
Replies: 38
Views: 4,428
Posted By 911Y4
Thumbs up Thank you very much and I will have a try

Thank you very much and I will have a try
Forum: General Tech Support, Tuning Advice, Logs, and Help Me Posts 09-26-2017, 07:19 PM
Replies: 38
Views: 4,428
Posted By 911Y4
This error is random, once I don't get them, the...

This error is random, once I don't get them, the car is normal, so i guess all hardware is functional
Forum: General Tech Support, Tuning Advice, Logs, and Help Me Posts 09-26-2017, 12:51 AM
Replies: 38
Views: 4,428
Posted By 911Y4
Lightbulb Radom TMAP and MAP sensor short circuit errors.

Hi All,

My car is F30 335xi N55 PWG, I have experienced random

120408 Reduced power mode
121001 Tmap sensor, short circuit to B+
104401 Map sensor, intake pipe, electrical: Short circuit to...
Forum: N55 09-18-2017, 08:27 PM
Replies: 1,449
Views: 156,485
Posted By 911Y4
Thank you very much Terry. I have this problem if...

Thank you very much Terry. I have this problem if I don't drive for few days. ^^
Forum: N55 09-12-2017, 05:56 PM
Replies: 28
Views: 3,521
Posted By 911Y4
EWG is far better than PWG, poor PWG can only...

EWG is far better than PWG, poor PWG can only hold 21-22psi in the same condition
Forum: N55 09-12-2017, 09:16 AM
Replies: 1,449
Views: 156,485
Posted By 911Y4
Same question

Same question
Forum: N55 09-09-2017, 08:34 PM
Replies: 75
Views: 8,972
Posted By 911Y4
The reason I only got 126mph was due to my turbo...

The reason I only got 126mph was due to my turbo maxed out in warm weather (only 22psi in log). In winter PS2 can produce 25psi in 4th and 5th gear, 130+ is achievable easily with f30 Xdrive.
Forum: N55 09-03-2017, 06:48 PM
Replies: 28
Views: 3,521
Posted By 911Y4
Wow! was it xdrive and EWG?

Wow! was it xdrive and EWG?
Forum: N55 09-03-2017, 06:47 PM
Replies: 75
Views: 8,972
Posted By 911Y4
awesome result! if it is on xdrive, the result...

awesome result! if it is on xdrive, the result should be in 10s
Forum: N55 08-29-2017, 11:47 PM
Replies: 5
Views: 1,200
Posted By 911Y4
maybe, and we are the same car. I am PWG

maybe, and we are the same car. I am PWG
Forum: N55 08-29-2017, 01:02 AM
Replies: 5
Views: 1,200
Posted By 911Y4
10.x is possible in winter with your car if you...

10.x is possible in winter with your car if you are running bigger turbo
Forum: N55 08-10-2017, 10:31 PM
Replies: 1,449
Views: 156,485
Posted By 911Y4
SO should I just ignore the FP_H dip and fuel...

SO should I just ignore the FP_H dip and fuel open loop?
Forum: N55 08-10-2017, 08:05 PM
Replies: 1,449
Views: 156,485
Posted By 911Y4
Trim and Open fuel loop issue

Hi Terry

I have discovered an interesting issue for trim vs open fuel. Logs are attached

a. If the trim was positive (above 25) before gear shifted, then after shift trim didn't stick at 25,...
Forum: N55 08-06-2017, 09:50 PM
Replies: 7
Views: 1,831
Posted By 911Y4
AWESOME was it EWG? much better boost control...

AWESOME was it EWG? much better boost control than PWG for 1/4mile
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