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Showing results 1 to 25 of 100 Search: Posts Made By: 911Y4
Forum: VW/Audi Group 02-21-2020, 03:40 AM
Replies: 0
Views: 2,510
Posted By 911Y4
Lightbulb Audi S6 + RS6 turbos + BEF, JB4 Discussion

Dear ALL,

I am sharing the result for JB4 running on bigger than oem turbos (such as RS6 turbos) , here are my car details:

2018 C7.5 Audi S6
RS6 turbos
Upgraded cooling, intake and exhaust...
Forum: VW/Audi Group 05-31-2019, 11:05 AM
Replies: 140
Views: 34,116
Posted By 911Y4
Thank you very much George for helping the s6 BEF...

Thank you very much George for helping the s6 BEF guys!

The S6 IAT was awful compared to bmw. Even with upgraded cooling radiator and meth, the lAT starts from 40 degree C and climbing to 55 C...
Forum: VW/Audi Group 05-29-2019, 11:07 AM
Replies: 140
Views: 34,116
Posted By 911Y4
Lightbulb 1st jb4 log (APR STG2 BEF 104 race gas map) 3rd to 4th Gear

Hi Terry and George,

Here is my first jb4 log for 2018 audi s6 with APR stg2 104 race gas BEF, could you please release new firmware to add performance to flashed car? Thank you so much! :happy
...
Forum: VW/Audi Group 05-26-2019, 09:57 PM
Replies: 140
Views: 34,116
Posted By 911Y4
HI George, Thank you! I have just received...

HI George,

Thank you! I have just received your jb4 unit today! Just FYI, the download link for the installation guide has somehow expired, could you please reload the latest version again for us?...
Forum: VW/Audi Group 05-17-2019, 10:06 AM
Replies: 140
Views: 34,116
Posted By 911Y4
So far I am using 93 octane and meth. I have...

So far I am using 93 octane and meth. I have heard somebody has tried E30 mix, but not sure what boost he can run. According to the current JB4 firmware, what parameters indicate a healthy fuel...
Forum: VW/Audi Group 05-16-2019, 06:22 AM
Replies: 140
Views: 34,116
Posted By 911Y4
Hi George, The stock fuel system is capable...

Hi George,

The stock fuel system is capable to max out stock turbos.

My question is if the “PWM” curve in S6 jb4 also represents turbo capability, i.e. if pwm max out, then turbos are maxout? I...
Forum: VW/Audi Group 05-14-2019, 05:20 PM
Replies: 140
Views: 34,116
Posted By 911Y4
Hi Payam, So far I am just running 50:50...

Hi Payam,

So far I am just running 50:50 mixture ratio with a single AEM 1000cc nozzle. After some hard pulls, car acceleration is still strong. The IAT for this platform is awful, without...
Forum: VW/Audi Group 05-14-2019, 05:12 PM
Replies: 140
Views: 34,116
Posted By 911Y4
Thank you very much Terry! May I ask if map6...

Thank you very much Terry!

May I ask if map6 is available for this platform yet? Because car has already been APR back end Flashed ( stg2 104 octane race map), so maybe we can try to slight add...
Forum: VW/Audi Group 05-14-2019, 11:43 AM
Replies: 140
Views: 34,116
Posted By 911Y4
Hi Payam, I have the AEM Kit running for...

Hi Payam,

I have the AEM Kit running for half year, I was runing a single 1000cc nozzle. From some experience, I found adding pure meth will cause AFR to run too rich result very poor performance....
Forum: VW/Audi Group 05-14-2019, 05:38 AM
Replies: 140
Views: 34,116
Posted By 911Y4
Has anyone here run meth on S6? If a single BM12...

Has anyone here run meth on S6? If a single BM12 is enough for 600-700hp? Due to placement issue, so far dual nozzles are very hard to install after(downstream) the air to water intercooler.
Forum: N55 11-03-2017, 05:38 PM
Replies: 38
Views: 7,179
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: 7,179
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: 7,179
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: 7,179
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: 7,179
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: 7,179
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: 7,179
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: 7,179
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: 1,307
Posted By 911Y4
GPS data.

GPS data.
Forum: N55 10-17-2017, 07:55 PM
Replies: 1
Views: 1,307
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: 41
Views: 10,287
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: 41
Views: 10,287
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: 41
Views: 10,287
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: 41
Views: 10,287
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: 1,452
Views: 275,429
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. ^^
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